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Overview

iKey project metrics at a glance — total cost per m², labor and material shares, and estimated duration
Source: Text Query
£460.71
Cost / m²
51.5%
Labor
25.5%
Materials
151 days
Est. Duration

Work Items

16 items iAdjust quantities or remove items, then recalculate. Click item name to jump to details.
Soil excavation using single-bucket electric dragline excavators with a bucket c38.41000 m3£268.98
Concrete preparation device19.2100 m3£4,478.49
Construction of reinforced concrete foundations for general use under columns wi16100 m3£7,093.85
Laying of external brick walls: simple with a floor height of up to 4 m67.2m3£33,207.60
Masonry of rubble stone walls with brick facing using hot mastic: only openings 22.4m3£6,464.60
Installation of tile roofs: grooved stamped or pressed (ceramic and cement-sand 128100 m2£4,795.43
Installation of window blocks with frames in residential and public buildings: p38.4100 m2£14,803.50
Installation of partitions made of PVC profiles: with door block9.6100 m2£2,632.32
Installation of coverings: made of laminated boards with a lock joint272100 m2£8,567.66
Removing wall coverings: made of glazed ceramic tiles32100 m2£468.85
Continuous leveling of wall plaster with cement-lime mortar with a thickness of:512100 m2£3,581.23
Painting with adhesive compounds: simple512100 m2£1,740.56
Plastic boxes: up to 40 mm wide960100 m£3,770.74
Laying water supply pipelines made of galvanized steel water and gas pipes with 256100 m£2,130.27
Installation of steel registers: water and gas pipes with a thread diameter of 2640100 m£49,730.19
Insulation of walls with glass fiber-based mineral wool slabs fastened with dowe176100 m2£3,694.27

Project Context

iInput parameters, location adjustment factors, and detection confidence for this estimate
Source
Residential
320 m² · 16 items
SourceText Query
Work Items16 items · 16 Categories
Currency£ GBP
LanguageEnglish
Date10 Apr 2026
private villa with pool 320 m2 in London
Cost / m²
£460.71
320 m²
Est. Duration
5 months
151 days
Overhead
15%
£17,481.64
Direct Costs
79%
£116,544.34
Location
London, UK
Europe
×1.28
Estimate Overview
£147,428.57
£460.71 / m² · 5 months (151 days)
Labor 52% Materials 26% Equipment 2% Overhead 12% Profit 9%
Contingency (P80)
+8%
£12,383.00
Budget (P80)
£159,812.57
recommended
Resources
63
44 mat · 5 lab · 14 equ
Overhead + Profit
12% + 9%
£30,884.23
Pricing Methodology
Data Source: DDC Pricing DB — United Kingdom (GBP) · 55,719 items · CWICR
City Adjustment
🏛 Toronto, Canada→🏛 Unknown, Unknown×1.00
PPP Coefficients
Labor Factor
×
click to adjust
Material Factor
×
click to adjust
Equipment Factor
×
click to adjust
Prices from a professional construction database (55,719 items), adjusted to your city using construction-specific Purchasing Power Parity (PPP). Coefficients can be manually adjusted.
Detection Confidence
50%

Cost Breakdown

iHow the total cost is distributed: labor, materials, equipment, overhead, and profit margins
£116,544.34Direct Cost
Labor (52%)£75,945.30
Materials (26%)£37,655.20
Equipment (2%)£2,943.84
Overhead (12%)£17,481.64
Profit (9%)£13,402.59
Cost / m²
Labor£237.33
Materials£117.67
Equipment£9.20
Overhead£54.63
Profit£41.88
Grand Total£460.71
Materials / Labor
0.50
Direct Cost %
79.1%
16 work items across 16 categories, 63 resources

Cost Flow

16iVisual flow of the total budget through work categories, showing proportional cost distribution
Total Cost£147,428.57Doors: £2,632.32 (1.8%)Heating: £49,730.19 (33.7%)Roofing: £4,795.43 (3.3%)Windows: £14,803.50 (10.0%)Bathroom: £468.85 (0.3%)Flooring: £8,567.66 (5.8%)Painting: £1,740.56 (1.2%)Plumbing: £2,130.27 (1.4%)Earthwork: £268.98 (0.2%)Structure: £7,093.85 (4.8%)Electrical: £3,770.74 (2.6%)Foundation: £4,478.49 (3.0%)Insulation: £3,694.27 (2.5%)Plastering: £3,581.23 (2.4%)External Walls: £33,207.60 (22.5%)Internal Walls: £6,464.60 (4.4%)Doors1.8%Heating33.7%Roofing3.3%Windows10.0%Bathroom0.3%Flooring5.8%Painting1.2%Plumbing1.4%Earthwork0.2%Structure4.8%Electrical2.6%Foundation3.0%Insulation2.5%Plastering2.4%External Walls22.5%Internal Walls4.4%

Categories

16iCost distribution by work category — earthwork, structure, facade, MEP, finishes, etc.
CategoryCostCost / m²Share
Doors£2,632.32£8.231.8%
Heating£49,730.19£155.4133.7%
Roofing£4,795.43£14.993.3%
Windows£14,803.50£46.2610.0%
Bathroom£468.85£1.470.3%
Flooring£8,567.66£26.775.8%
Painting£1,740.56£5.441.2%
Plumbing£2,130.27£6.661.4%
Earthwork£268.98£0.840.2%
Structure£7,093.85£22.174.8%
Electrical£3,770.74£11.782.6%
Foundation£4,478.49£13.003.0%
Insulation£3,694.27£11.542.5%
Plastering£3,581.23£11.192.4%
External Walls£33,207.60£103.7722.5%
Internal Walls£6,464.60£20.204.4%

Top Items

DescriptionTotal
Installation of steel registers: water and gas pipes wi…£49,730.19
Laying of external brick walls: simple with a floor hei…£33,207.60
Installation of window blocks with frames in residentia…£14,803.50
Installation of coverings: made of laminated boards wit…£8,567.66
Construction of reinforced concrete foundations for gen…£7,093.85

What-If Scenarios

iExplore how changes in material, labor, or equipment costs affect the total project budget
Optimistic (-10%)
£132,685.71
↓ £14,742.86 savings
Labor -10% · Materials -10% · Equipment -10%
Base Estimate
£147,428.57
Deterministic
Labor ×1.00 · Materials ×1.00 · Equipment ×1.00
Pessimistic (+15%)
£169,542.86
↑ £22,114.29 increase
Labor +15% · Materials +15% · Equipment +15%
Custom Scenario: Adjust cost components
Labor 0%
Materials 0%
Equipment 0%
Custom Scenario Total Cost
£147,428.57

Project Schedule

≈5 monthsiProject timeline with critical path method (CPM), Gantt chart, and resource allocation
Construction PhasesAI
Site PreparationSite clearing, temporary facilities setup, access roads14d
EarthworksExcavation, grading, soil compaction, utility trenches8d
FoundationFoundation excavation, formwork, concrete pouring and curing8d
Structural FrameworkFraming, structural elements, load-bearing walls42d
RoofingRoof framing, sheathing, weatherproofing, finish roofing12d
External WallsExterior wall construction, sheathing, weather barrier8d
Windows and Exterior DoorsInstallation of windows and exterior door frames8d
MEP Rough-inElectrical wiring, plumbing, HVAC rough installation33d
InsulationWall and ceiling insulation installation8d
Drywall and PlasteringDrywall installation, taping, mudding, plastering15d
Interior DoorsInterior door frame and door installation8d
FlooringSubfloor preparation, finish flooring installation8d
Bathroom FixturesBathroom fixture installation, tiling, waterproofing8d
MEP FinishFinal electrical, plumbing, and HVAC connections8d
Painting and FinishesInterior and exterior painting, final trim work8d
Final Cleanup and HandoverFinal cleaning, inspections, punch list completion8d
5
months
151
days
16
phases
12
Critical Path
6
Peak workers
1,484
Labor Hours
M1 M2 M3 M4 M5 Crew/Float Site Preparation Site Preparation: 14d, Crew 2, Float 0d 14d 2 / - Earthworks Earthworks: 8d, Crew 2, Float 0d 2 / - Foundation Foundation: 8d, Crew 2, Float 0d 2 / - Structural Framework Structural Framework: 42d, Crew 2, Float 0d 42d 2 / - Roofing Roofing: 12d, Crew 2, Float 4d 12d 2 / 4d External Walls External Walls: 8d, Crew 2, Float 63d 2 / 63d Windows and Exterior … Windows and Exterior Doors: 8d, Crew 2, Float 63d 2 / 63d MEP Rough-in MEP Rough-in: 33d, Crew 2, Float 0d 33d 2 / - Insulation Insulation: 8d, Crew 2, Float 0d 2 / - Drywall and Plastering Drywall and Plastering: 15d, Crew 2, Float 0d 15d 2 / - Interior Doors Interior Doors: 8d, Crew 2, Float 32d 2 / 32d Flooring Flooring: 8d, Crew 2, Float 0d 2 / - Bathroom Fixtures Bathroom Fixtures: 8d, Crew 2, Float 0d 2 / - MEP Finish MEP Finish: 8d, Crew 2, Float 0d 2 / - Painting and Finishes Painting and Finishes: 8d, Crew 2, Float 0d 2 / - Final Cleanup and Han… Final Cleanup and Handover: 8d, Crew 2, Float 0d 2 / - Workers 147K 50% (69d)
Site PreparationEarthworksFoundationStructural FrameworkRoofingExternal WallsWindows and Exterior DoorsMEP Rough-inInsulationDrywall and PlasteringInterior DoorsFlooringBathroom FixturesMEP FinishPainting and FinishesFinal Cleanup and HandoverCumulative Cost
Labor Hours by Phase
Structural Framework
439 hours
MEP Rough-in
343 hours
Drywall and Plasteri
153 hours
Site Preparation
131 hours
Roofing
127 hours
Painting and Finishe
71 hours
Windows and Exterior
66 hours
Flooring
62 hours
External Walls
50 hours
MEP Finish
50 hours
Final Cleanup and Ha
50 hours
Foundation
29 hours
Insulation
29 hours
Bathroom Fixtures
24 hours
Interior Doors
12 hours
Earthworks
0 hours

Monthly Cash Flow

5 monthsiMonthly cost distribution and cumulative S-curve showing how project spending builds over time
8%
M1
33%
M2
87%
M3
99%
M4
100%
M5
MonthdaysMonthly Cost%Cumulative%
M11–30£11,212.077.6%£11,212.078%
M231–60£37,215.7225.2%£48,427.7933%
M361–90£79,239.4353.7%£127,667.2287%
M491–120£17,610.5211.9%£145,277.7499%
M5121–150£2,150.801.5%£147,428.54100%

Daily Cash Flow

21 weeks
0%
D1
4%
D15
7%
D29
16%
D43
27%
D57
53%
D71
79%
D85
89%
D99
93%
D113
99%
D127
100%
D141
100%
D143
WeekdaysWeekly Cost%Cumulative%
W1D1–D7£3,232.302.2%£3,232.302%
W2D8–D14£3,232.302.2%£6,464.604%
W3D15–D21£235.360.2%£6,699.965%
W4D22–D28£3,392.492.3%£10,092.457%
W5D29–D35£5,917.414.0%£16,009.8611%
W6D36–D42£6,716.914.6%£22,726.7715%
W7D43–D49£6,716.914.6%£29,443.6820%
W8D50–D56£8,402.705.7%£37,846.3826%
W9D57–D63£18,517.4712.6%£56,363.8538%
W10D64–D70£18,517.4712.6%£74,881.3151%
W11D71–D77£15,717.7710.7%£90,599.0861%
W12D78–D84£21,999.6414.9%£112,598.7276%
W13D85–D91£15,530.2810.5%£128,129.0087%
W14D92–D98£2,786.421.9%£130,915.4289%
W15D99–D105£1,671.241.1%£132,586.6690%
W16D106–D112£2,832.491.9%£135,419.1592%
W17D113–D119£9,799.986.6%£145,219.1399%
W18D120–D126£410.240.3%£145,629.3799%
W19D127–D133£58.610.0%£145,687.9899%
W20D134–D140£1,087.850.7%£146,775.83100%
W21D141–D143£652.710.4%£147,428.54100%

Line Items

16 itemsiDetailed work items grouped by category with quantities, unit prices, and resource breakdown
▼Earthwork 1 items £268.98
#CodeDescriptionQtyUnitUnit PriceTotal
1KAME_KAME_KAKAME_KAMECON
Soil excavation using single-bucket electric dragline excavators with a bucket capacity of: 15 m3, soil group 1
38.41000 m3£5.54£268.98
£212.63 +15% £31.89 +10% £24.45
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Worker Category 10.06hrs£18.42£1.09
Bulldozers, power 79 kW (108 hp)0.06Machine hours£36.40£2.24
Personnel: 1 person-hour/machine-hour0.06Machine hours£13.43£0.83
Single-bucket electric walking excavators with dragline working equipment, bucket capacity 15 m30.06Machine hours£3,406.67£209.31
Personnel: 3 man-hours/machine-hours0.06Machine hours£50.31£3.09
▼Foundation 1 items £4,478.49
#CodeDescriptionQtyUnitUnit PriceTotal
2KANE_KAME_KAKAME_KAMECONConcrete preparation device19.2100 m3£184.39£4,478.49
£3,540.31 +15% £531.05 +10% £407.14
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Worker Category 125.92hrs£15.32£397.18
Water0.34m3£1.28£0.43
Polyethylene film, thickness KA.MESA mm48.00m2£0.43£20.61
Tower cranes, lifting capacity 8 t3.46Machine hours£29.13£100.66
Personnel: 1 person-hour/machine-hour3.46Machine hours£13.43£46.41
Surface vibrators1.14Machine hours£0.39£0.44
Flatbed trucks, load capacity up to 5 tons0.02Machine hours£18.02£0.42
Personnel: 1 person-hour/machine-hour0.02Machine hours£9.00£0.23
▼Structure 1 items £7,093.85
#CodeDescriptionQtyUnitUnit PriceTotal
3KANE_KAME_KAKAME_KASA
Construction of reinforced concrete foundations for general use under columns with a volume of: up to 3 m3
16.0100 m3£350.49£7,093.85
£5,607.79 +15% £841.17 +10% £644.90
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Average workload TO.KA101.44hrs£16.73£1,697.31
Water0.07m3£1.28£0.09
Electricity0.33kWh£0.21£0.07
Polyethylene film, thickness KA.MESA mm24.48m2£0.43£10.51
Construction nails0.00t£2,590.75£8.29
Quicklime, grade I0.00t£247.71£1.19
Light wire, diameter ME.ME mm0.00t£2,638.79£4.22
Hot-rolled wire in coils, diameter NE.TO-NE.SA mm0.01t£1,790.97£11.46
Edged softwood boards, natural moisture content, length RI-NE.SA m, width 100-250 mm, thickness 44-50 mm, grade III0.12m3£409.48£48.48
Tower cranes, lifting capacity 8 t4.86Machine hours£29.13£141.44
Personnel: 1 person-hour/machine-hour4.86Machine hours£13.43£65.21
Mobile cranes, lifting capacity 16 t0.10Machine hours£46.40£4.60
Personnel: 1 person-hour/machine-hour0.10Machine hours£13.43£1.33
Universal front-end pneumatic wheeled single-bucket loaders, nominal capacity of main bucket RI.NE m3, load capacity 5 t0.04Machine hours£48.15£1.93
Personnel: 1 person-hour/machine-hour0.04Machine hours£11.49£0.46
Deep vibrators4.46Machine hours£0.39£1.72
Flatbed trucks, load capacity up to 5 tons0.14Machine hours£18.02£2.59
Personnel: 1 person-hour/machine-hour0.14Machine hours£9.00£1.44
▼External Walls 1 items £33,207.60
#CodeDescriptionQtyUnitUnit PriceTotal
4KAVO_KARI_KAKAME_KAMECON
Laying of external brick walls: simple with a floor height of up to 4 m
67.2m3£390.64£33,207.60
£26,251.07 +15% £3,937.66 +10% £3,018.87
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Worker Category 1305.09hrs£16.31£4,977.16
Water29.57m3£1.28£37.76
Edged coniferous timber (spruce, pine), natural moisture content, length RI-NE.SA m, width 20-90 mm, thickness 20-90 mm, grade IV0.00m3£354.85£0.00
Tower cranes, lifting capacity 8 t26.88Machine hours£29.13£782.94
Personnel: 1 person-hour/machine-hour26.88Machine hours£13.43£360.99
▼Internal Walls 1 items £6,464.60
#CodeDescriptionQtyUnitUnit PriceTotal
5KAVO_KAME_KAKAME_KANE
Masonry of rubble stone walls with brick facing using hot mastic: only openings with a floor height of up to 4 m
22.4m3£228.14£6,464.60
£5,110.36 +15% £766.55 +10% £587.69
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Worker Category 1124.77hrs£16.31£2,035.45
Hot bitumen roofing mastic MBK-G-55, MBK-G-65, MBK-G-75, MBK-G-85, MBK-G-1000.00t£920.15£0.00
Water0.22m3£1.28£0.29
Ready-mixed masonry mortar, cement, M508.51m3£134.73£1,146.80
RKK-350 roofing felt12.77m2£1.95£24.88
Mobile cranes, lifting capacity 16 t3.14Machine hours£46.40£145.51
Personnel: 1 person-hour/machine-hour3.14Machine hours£13.43£42.12
Mobile electric bitumen boilers with centrifugal mixer, loading capacity 400 l0.22Machine hours£4.02£0.90
Flatbed trucks, load capacity up to 5 tons2.69Machine hours£18.02£48.44
Personnel: 1 person-hour/machine-hour2.69Machine hours£9.00£26.87
▼Roofing 1 items £4,795.43
#CodeDescriptionQtyUnitUnit PriceTotal
6MERI_KAME_KAKALI_KASA
Installation of tile roofs: grooved stamped or pressed (ceramic and cement-sand (concrete))
128.0100 m2£29.62£4,795.43
£3,790.85 +15% £568.63 +10% £435.95
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Worker Category 1123.65hrs£17.79£2,199.57
Steel roofing nails, diameter 2-3 mm, length 20-40 mm9.98kg£2.69£26.82
Galvanized steel washers, round, hole diameter M16-244.57kg£6.53£29.83
Self-tapping steel screws with a semi-circular head and a straight slot, pointed, diameter 4 mm, length 40 mm0.00t£3,655.66£0.00
Ready-mixed masonry mortar, cement, M1000.35m3£145.00£50.46
Forgings from square billets, weight ME.SA-PU.SA kg0.00t£2,359.17£0.00
Galvanized sheet steel, thickness KA.LI mm0.06t£2,213.64£141.67
Tower cranes, lifting capacity 8 t1.74Machine hours£29.13£50.70
Personnel: 1 person-hour/machine-hour1.74Machine hours£13.43£23.38
Mobile cranes, lifting capacity 16 t0.46Machine hours£46.40£21.38
Personnel: 1 person-hour/machine-hour0.46Machine hours£13.43£6.19
Flatbed trucks, load capacity up to 5 tons0.73Machine hours£18.02£13.15
Personnel: 1 person-hour/machine-hour0.73Machine hours£9.00£7.29
▼Windows 1 items £14,803.50
#CodeDescriptionQtyUnitUnit PriceTotal
7MEKA_KAME_KARILI_KAME
Installation of window blocks with frames in residential and public buildings: paired in stone walls with an opening are
38.4100 m2£304.75£14,803.50
£11,702.37 +15% £1,755.36 +10% £1,345.77
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Worker Category 162.83hrs£17.58£1,104.61
Electricity3.59kWh£0.21£0.75
Polyurethane foam sealant (assembly foam), universal, volume 1000 ml19.93pcs£8.47£168.71
Construction nails0.00t£2,590.75£0.00
Self-tapping steel screws, oxidized, with countersunk head and cross-shaped slot, pointed, diameter 8 mm, length 100 mm0.00t£3,862.42£14.83
Plaster mortar, lime, M2000.05m3£149.84£8.06
Tower cranes, lifting capacity 8 t2.04Machine hours£29.13£59.39
Personnel: 1 person-hour/machine-hour2.04Machine hours£13.43£27.38
Flatbed trucks, load capacity up to 5 tons0.85Machine hours£18.02£15.36
Personnel: 1 person-hour/machine-hour0.85Machine hours£9.00£8.52
▼Doors 1 items £2,632.32
#CodeDescriptionQtyUnitUnit PriceTotal
8MEKA_KAME_KAMENE_KARI
Installation of partitions made of PVC profiles: with door block
9.6100 m2£216.76£2,632.32
£2,080.89 +15% £312.13 +10% £239.30
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Worker Category 111.98hrs£17.15£205.53
Electricity0.58kWh£0.21£0.12
Polyurethane foam sealant (assembly foam), universal, volume 1000 ml0.10pcs£8.47£0.81
Steel frame mounting dowels, diameter 10 mm, length 130 (132) mm3.4010 pcs£3.41£11.60
Self-tapping steel screws with countersunk head and cross-shaped slot, drill tip, diameter PU.VO mm, length 80 mm0.00t£11,760.47£0.00
Mobile cranes, lifting capacity 16 t0.06Machine hours£46.40£2.94
Personnel: 1 person-hour/machine-hour0.06Machine hours£13.43£0.85
Flatbed trucks, load capacity up to 5 tons0.05Machine hours£18.02£0.93
Personnel: 1 person-hour/machine-hour0.05Machine hours£9.00£0.52
▼Flooring 1 items £8,567.66
#CodeDescriptionQtyUnitUnit PriceTotal
9MEME_KAME_KATOPU_KAPU
Installation of coverings: made of laminated boards with a lock joint
272.0100 m2£24.90£8,567.66
£6,772.86 +15% £1,015.93 +10% £778.88
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Average workload TO.KA61.34hrs£16.73£1,026.28
Electricity1.58kWh£0.21£0.33
Foamed polyethylene underlay for parquet and laminate flooring, thickness 2 mm28.5610 m£4.12£117.58
Flatbed trucks, load capacity up to 5 tons0.27Machine hours£18.02£4.90
Personnel: 1 person-hour/machine-hour0.27Machine hours£9.00£2.72
▼Bathroom 1 items £468.85
#CodeDescriptionQtyUnitUnit PriceTotal
10NETO_KATO_KAKAME_KASARemoving wall coverings: made of glazed ceramic tiles32.0100 m2£11.58£468.85
£370.64 +15% £55.59 +10% £42.62
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Average work load RI.ME23.78hrs£15.47£367.73
Single-mast hoists, load capacity up to 500 kg, lifting height 45 m0.11Machine hours£1.66£0.19
Personnel: 1 person-hour/machine-hour0.11Machine hours£8.88£0.99
Mobile screw compressors with electric motor, pressure up to 1 MPa (10 atm), capacity up to 5 m3/min0.52Machine hours£4.94£2.59
Pneumatic jackhammers powered by mobile compressors1.05Machine hours£0.10£0.10
▼Plastering 1 items £3,581.23
#CodeDescriptionQtyUnitUnit PriceTotal
11NEME_KAME_KAKAME_KAME
Continuous leveling of wall plaster with cement-lime mortar with a thickness of: up to 5 mm
512.0100 m2£5.53£3,581.23
£2,831.01 +15% £424.65 +10% £325.57
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Worker Category 1151.45hrs£16.31£2,470.73
Water1.79m3£1.28£2.29
Plaster mortar, lime, M1002.71m3£131.07£355.68
Single-mast hoists, load capacity up to 500 kg, lifting height 45 m1.64Machine hours£1.66£2.72
Personnel: 1 person-hour/machine-hour1.64Machine hours£8.88£14.55
▼Painting 1 items £1,740.56
#CodeDescriptionQtyUnitUnit PriceTotal
12NERI_KAME_KAKAME_KAMEPainting with adhesive compounds: simple512.0100 m2£2.69£1,740.56
£1,375.95 +15% £206.39 +10% £158.23
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Worker Category 170.14hrs£16.17£1,134.28
Copper sulfate, grade A0.00t£7,086.44£0.00
Water0.61m3£1.28£0.78
Hard laundry soap 72%8.70pcs£0.78£6.80
Natural ground chalk0.10t£152.65£15.63
Pumice1.23kg£105.83£130.05
Two-layer sanding paper with a grain size of 40-250.41m2£22.43£9.19
Colored cotton rags0.05kg£2.63£0.13
Glue for glass wallpaper4.45kg£2.11£9.41
Single-mast hoists, load capacity up to 500 kg, lifting height 45 m0.51Machine hours£1.66£0.85
Personnel: 1 person-hour/machine-hour0.51Machine hours£8.88£4.55
Flatbed trucks, load capacity up to 5 tons0.26Machine hours£18.02£4.61
Personnel: 1 person-hour/machine-hour0.26Machine hours£9.00£2.56
▼Electrical 1 items £3,770.74
#CodeDescriptionQtyUnitUnit PriceTotal
13KAVO_KARI_TODXKA_KAMEmPlastic boxes: up to 40 mm wide960.0100 m£3.10£3,770.74
£2,980.83 +15% £447.12 +10% £342.79
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Worker Category 1156.38hrs£18.64£2,914.46
Electricity63.07kWh£0.21£13.19
Polyethylene expansion dowels, diameter 6 mm, length 40 mm1.921000 pcs£9.62£18.47
Self-tapping steel screws with a semi-circular head and a straight slot, pointed, diameter 4 mm, length 40 mm0.00t£3,655.66£0.00
Single-mast hoists, load capacity up to 500 kg, lifting height 45 m0.10Machine hours£1.66£0.16
Personnel: 1 person-hour/machine-hour0.10Machine hours£8.88£0.85
▼Plumbing 1 items £2,130.27
#CodeDescriptionQtyUnitUnit PriceTotal
14MENE_KARI_KAKARI_KAME
Laying water supply pipelines made of galvanized steel water and gas pipes with a diameter of: 15 mm
256.0100 m£6.58£2,130.27
£1,684.01 +15% £252.60 +10% £193.66
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Worker Category 186.27hrs£18.85£1,625.86
Dissolved technical acetylene, grade B0.00t£21,269.76£0.00
Technical gaseous oxygen0.87m3£4.65£4.04
Water0.64m3£1.28£0.82
Linen thread0.13kg£5.42£0.69
Uncoated welding wire SV-08G2S, diameter 4 mm0.00t£3,382.95£0.00
Unslaked chlorinated lime for construction, grade A0.00kg£2.79£0.00
MA-0115 oil paint, mummy, iron minium1.13kg£3.61£4.07
Combined drying oil for diluting thick oil paints and for exterior work on wooden surfaces0.00t£2,200.91£0.00
Tower cranes, lifting capacity 8 t0.20Machine hours£29.13£5.97
Personnel: 1 person-hour/machine-hour0.20Machine hours£13.43£2.75
Mobile cranes, lifting capacity 16 t0.15Machine hours£46.40£7.13
Personnel: 1 person-hour/machine-hour0.15Machine hours£13.43£2.06
Flatbed trucks, load capacity up to 5 tons1.02Machine hours£18.02£18.45
Personnel: 1 person-hour/machine-hour1.02Machine hours£9.00£10.24
Gas welding and cutting equipment3.05Machine hours£0.15£0.47
▼Heating 1 items £49,730.19
#CodeDescriptionQtyUnitUnit PriceTotal
15MEVO_KATO_KAKAPU_KAME
Installation of steel registers: water and gas pipes with a thread diameter of 20 mm
640.0100 m£61.43£49,730.19
£39,312.40 +15% £5,896.86 +10% £4,520.93
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Worker Category 195.36hrs£17.79£1,696.35
Electricity2.24kWh£0.21£0.47
Linen thread0.70kg£5.42£3.81
Galvanized steel dowel nails with washers, diameter PU.SA mm, length 30-60 mm0.00t£8,119.74£0.00
Ready-mixed masonry mortar, cement, M500.00m3£134.73£0.00
MA-0115 oil paint, mummy, iron minium1.41kg£3.61£5.08
Combined drying oil for diluting thick oil paints and for exterior work on wooden surfaces0.00t£2,200.91£0.00
Single reinforced steel brackets for mounting radiators, bracket length 130 mm1.41100 pcs£129.98£183.02
Steel anchor brackets with dowels, painted, for mounting radiators, diameter 7 mm, bracket length 300 mm, plastic dowel diameter 10 mm, length 60 mm1.41100 pcs£126.22£177.71
Heating registers made of steel water and gas pipes, non-galvanized, thread diameter 20 mm640.00m£57.85£37,022.11
Tower cranes, lifting capacity 8 t0.06Machine hours£29.13£1.86
Personnel: 1 person-hour/machine-hour0.06Machine hours£13.43£0.86
Mobile cranes, lifting capacity 16 t0.64Machine hours£46.40£29.70
Personnel: 1 person-hour/machine-hour0.64Machine hours£13.43£8.60
Flatbed trucks, load capacity up to 5 tons2.56Machine hours£18.02£46.13
Personnel: 1 person-hour/machine-hour2.56Machine hours£9.00£25.59
▼Insulation 1 items £3,694.27
#CodeDescriptionQtyUnitUnit PriceTotal
16RINE_KAME_KATOSA_KAME
Insulation of walls with glass fiber-based mineral wool slabs fastened with dowels when working from a cradle: in a sing
176.0100 m2£16.59£3,694.27
£2,920.37 +15% £438.06 +10% £335.84
Labor Materials Equipment
TypeResourceQtyUnitUnit PriceCost
Worker Category 128.46hrs£17.37£494.35
Self-lifting two-seater cradles, load capacity 300 kg11.77Machine hours£0.65£7.65
Flatbed trucks, load capacity up to 5 tons0.88Machine hours£18.02£15.86
Personnel: 1 person-hour/machine-hour0.88Machine hours£9.00£8.80
Cost Summary
Direct Cost79%£116,544.34
Overhead+15%£17,481.64
Profit+10%£13,402.59
Grand Total£147,428.57

Resource Summary

63 resourcesiAggregated materials, labor, and equipment needed for the entire project
Materials to Order (44)
ResourceUnitQtyUnit PriceCost
Heating registers made of steel water and gas pipes, non-galvanized, tm640.00£57.85£37,022.11
Ready-mixed masonry mortar, cement, M50m38.51£134.73£1,146.80
Plaster mortar, lime, M100m32.71£131.07£355.68
Single reinforced steel brackets for mounting radiators, bracket lengt100 pcs1.41£129.99£183.02
Steel anchor brackets with dowels, painted, for mounting radiators, di100 pcs1.41£126.21£177.71
Polyurethane foam sealant (assembly foam), universal, volume 1000 mlpcs20.03£8.47£169.52
Galvanized sheet steel, thickness KA.LI mmt0.06£2,213.59£141.67
Pumicekg1.23£105.83£130.05
Foamed polyethylene underlay for parquet and laminate flooring, thickn10 m28.56£4.12£117.58
Ready-mixed masonry mortar, cement, M100m30.35£146.01£50.46
Edged softwood boards, natural moisture content, length RI-NE.SA m, wim30.12£409.46£48.48
Waterm333.24£1.28£42.46
Polyethylene film, thickness KA.MESA mmm272.48£0.43£31.12
Galvanized steel washers, round, hole diameter M16-24kg4.57£6.53£29.83
Steel roofing nails, diameter 2-3 mm, length 20-40 mmkg9.98£2.69£26.82
RKK-350 roofing feltm212.77£1.95£24.88
Polyethylene expansion dowels, diameter 6 mm, length 40 mm1000 pcs1.92£9.62£18.47
Natural ground chalkt0.10£152.64£15.63
ElectricitykWh71.40£0.21£14.93
Self-tapping steel screws, oxidized, with countersunk head and cross-st0.00£3,902.63£14.83
Steel frame mounting dowels, diameter 10 mm, length 130 (132) mm10 pcs3.40£3.41£11.60
Hot-rolled wire in coils, diameter NE.TO-NE.SA mmt0.01£1,790.62£11.46
Glue for glass wallpaperkg4.45£2.11£9.41
Two-layer sanding paper with a grain size of 40-25m20.41£22.44£9.19
MA-0115 oil paint, mummy, iron miniumkg2.53£3.61£9.15
Construction nailst0.00£2,590.62£8.29
Plaster mortar, lime, M200m30.05£149.81£8.06
Hard laundry soap 72%pcs8.70£0.78£6.80
Linen threadkg0.83£5.41£4.50
Light wire, diameter ME.ME mmt0.00£2,637.50£4.22
Grand Total£39,850.09
Labor Requirements (5)
ResourceUnitQtyUnit PriceCost
Worker Category 1hrs1,242.37£17.11£21,256.62
Average workload TO.KAhrs162.78£16.73£2,723.59
Personnel: 1 person-hour/machine-hourMachine hours55.73£12.65£705.14
Average work load RI.MEhrs23.78£15.47£367.73
Personnel: 3 man-hours/machine-hoursMachine hours0.06£50.33£3.09
Grand Total£25,056.17
Equipment Requirements (14)
ResourceUnitQtyUnit PriceCost
Tower cranes, lifting capacity 8 tMachine hours39.24£29.13£1,142.96
Mobile cranes, lifting capacity 16 tMachine hours4.55£46.40£211.26
Single-bucket electric walking excavators with dragline working equipmMachine hours0.06£3,408.96£209.31
Flatbed trucks, load capacity up to 5 tonsMachine hours9.48£18.02£170.84
Self-lifting two-seater cradles, load capacity 300 kgMachine hours11.77£0.65£7.65
Single-mast hoists, load capacity up to 500 kg, lifting height 45 mMachine hours2.36£1.66£3.92
Mobile screw compressors with electric motor, pressure up to 1 MPa (10Machine hours0.52£4.94£2.59
Bulldozers, power 79 kW (108 hp)Machine hours0.06£36.48£2.24
Universal front-end pneumatic wheeled single-bucket loaders, nominal cMachine hours0.04£48.25£1.93
Deep vibratorsMachine hours4.46£0.39£1.72
Mobile electric bitumen boilers with centrifugal mixer, loading capaciMachine hours0.22£4.02£0.90
Gas welding and cutting equipmentMachine hours3.05£0.15£0.47
Surface vibratorsMachine hours1.14£0.39£0.44
Pneumatic jackhammers powered by mobile compressorsMachine hours1.05£0.10£0.10
Grand Total£1,756.33

Material Alternatives

iAlternative materials with approximate price difference. Percentages show material cost change relative to the current specification.
Installation of window blocks with frames in residentia£10,503.00
Triple-glazed PVC+35%Aluminum frame+25%Timber frame+45%
Installation of coverings: made of laminated boards wit£5,723.31
Vinyl/LVT-35%Natural stone+100%Polished concrete-30%
Construction of reinforced concrete foundations for gen£3,730.21
High-strength concrete+20%Lightweight concrete+15%Recycled aggregate-10%
Concrete preparation device£3,038.57
High-strength concrete+20%Lightweight concrete+15%Recycled aggregate-10%
Insulation of walls with glass fiber-based mineral wool£2,402.62
XPS foam board+30%Cellulose fiber-15%Spray foam+50%
Installation of tile roofs: grooved stamped or pressed £1,324.79
High-strength concrete+20%Lightweight concrete+15%Recycled aggregate-10%

Risk Analysis

Monte Carlo · 10KiMonte Carlo simulation (10,000 iterations) showing completion probability at different confidence levels
166days
P50
50% probability the project finishes within this timeframe. Median scenario based on Monte Carlo simulation.
174days
P80
80% probability — recommended planning basis. Accounts for common delays and uncertainties.
181days
P95
95% probability — conservative estimate. Covers nearly all risk scenarios including severe delays.
+23days
Buffer
Recommended time buffer to add to the deterministic schedule. Covers typical construction uncertainties.
Base Cost (P50)
£147,428.57
Budget (P80)
£154,809.76
Maximum (P95)
£161,883.40
Contingency
+5.0%
Recommended cost reserve based on schedule risk analysis — £7,381.19
Recommended Budget: £154,809.76
Deterministic 151 days
P50 166 days
P80 174 days
P95 181 days
P50 P80 P95
Based on Monte Carlo simulation with 10,000 iterations using PERT distribution for each phase duration.
Peak: 6
1,485 man-hours
12 crit. phases

Cost Risk Analysis

Monte Carlo · 5,000 iterations

Monte Carlo simulation of construction cost uncertainty

Cost Percentiles

£182,160.02
P10
£185,503.44
P25
£189,545.77
P50
£194,864.75
P80
£197,737.37
P90

Cumulative Probability (S-Curve)

+2.8%
Recommended Contingency (P80 − P50)
Reserve to cover likely cost overruns with 80% confidence — £5,318.98

Top Risk Drivers

CategoryWork ItemRisk Share
HeatingInstallation of steel registers: water and gas pip
74.4%
External WallsLaying of external brick walls: simple with a floo
18.0%
WindowsInstallation of window blocks with frames in resid
3.6%
StructureConstruction of reinforced concrete foundations fo
0.7%
Internal WallsMasonry of rubble stone walls with brick facing us
0.7%
FlooringInstallation of coverings: made of laminated board
0.7%
FoundationConcrete preparation device
0.5%
RoofingInstallation of tile roofs: grooved stamped or pre
0.4%

Sensitivity Analysis

±10%iImpact of ±10% change in each cost component on the total project cost

This tornado chart shows how a ±10% change in each cost category affects the total estimate. The wider the bar, the greater the cost impact — helping identify which cost drivers carry the most risk and where tighter cost control may be needed.

Decrease ← → IncreaseImpact
Labor52% of total
±£7,594.53±5.2%
Materials26% of total
±£3,765.52±2.6%
Overhead12% of total
±£1,748.16±1.2%
Profit9% of total
±£1,340.26±0.9%
Equipment2% of total
±£294.38±0.2%

Cost Summary

iFinal cost breakdown with direct costs, overhead, profit, and grand total
Labor£75,945.3052%
Materials£37,655.2026%
Equipment£2,943.842%
Direct Cost£116,544.34
Overhead£17,481.6412%
Profit£13,402.599%
Grand Total£147,428.57100%
EUR equivalent€169.354,96
USD equivalent$197,891.27

Estimate Classification

AACE 18R-97

AACE International Recommended Practice 18R-97

3
ClassClass 3
Typical PurposeBudget Authorization
Expected Accuracy Range: -20% / +30%
Project Definition Level: 10–40%

Cost Benchmark

Residential · Western Europe

Comparison of estimated cost/m² against market reference ranges

Low
1,400
▲ Typical
2,000
High
3,200
▼ Your Estimate
529 EUR/m²
Significantly below range · 0.26x ratio to typical

Methodology & Assumptions

iCalculation methodology, data sources, and key assumptions underlying this estimate
Data SourceDDC Pricing DB — United Kingdom (GBP)
Confidence Level50%
Overhead Rate15%
Profit Rate10%
Items Matched16
Assumptions
  • Costs adjusted by location-specific labor, material, and equipment factors
  • Exchange rates are offline reference rates and may differ from market rates
  • All amounts exclude VAT / sales tax
  • This estimate is for preliminary budgeting only — not a binding quotation
Included in Estimate
  • All labor, materials, and equipment per defined scope
  • Overhead and profit margins as specified
  • Location-adjusted pricing factors applied
Excluded from Estimate
  • VAT / sales tax
  • Permits, licenses, and legal fees
  • Temporary works and site facilities
  • Design and engineering fees
Prices current as of 2026-02-23 · No cost escalation or inflation adjustment applied
How accurate is this estimate? One click — completely anonymous
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What-If Scenarios
1,000 m²
100%
100%
Standard (100%)
-
Adjusted Total
-
Per m²
-
vs Original
DDC Toolkit · Generated 2026-02-23 14:54 · This estimate is for preliminary budgeting purposes only.