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BUILD COST CALCULATOR

The Build Cost Calculator helps you estimate costs for extension, refurbishment, new builds, restoration, and loft conversions, giving you a clear understanding of your project’s budget

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Cost Calculator

We have created four advanced cost calculators for extensions, loft conversions, refurbishments, and new builds. Simply select the appropriate calculator, enter your project's details, and it will estimate your build costs quickly. These estimates provide a good indication of costs, but you can save more by planning ahead, hiring an experienced construction and architecture firm, and choosing the right builder. With our practical experience and thorough construction inspection approach, we help you avoid issues, reduce stress, stay on schedule, and control your budget.

Director's Message

In the construction industry, it's quite common for builders to provide attractive initial quotes, only to introduce additional charges and fees as the project progresses. To avoid these surprises, consider hiring a reputable construction and architectural firm. They can handle the technical design of your project and prepare a comprehensive tender package, ensuring you select trustworthy builders and your project complies with building regulations right from the start.
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Calculate your build cost in 20 seconds

Build Cost Calculator

EXTENSION

BUILD QUALITY EXPLAINED
Standard - e.g. Howdens Kitchen, Topps Tiles, UPVC windows.
Good - e.g. Pogenpol Kitchen, Porcelain tiles, Aluminum windows.
Excellent - e.g. Bespoke Kitchen, natural materials, Farrow and Ball and bespoke wardrobes.
50m2
0m2300m2

The construction cost will depend on several factors including the complexity of the design detail, extent of structural works and level of fixtures, fittings and material used for finishes. It does not include professional fees, statutory fees, environmental assessment, planning or any other third-party fees,  (Section 106, CIL regulation). Prices are updated at regular intervals but may not fully reflect the current inflation based on geography or political crises. Always ask your construction consultant to conduct due diligence on your timescale, budget and project risk. 

NEW BUILD

BUILD QUALITY EXPLAINED
Standard - e.g. Howdens Kitchen, Topps Tiles, UPVC windows.
Good - e.g. Pogenpol Kitchen, Porcelain tiles, Aluminum windows.
Excellent - e.g. Bespoke Kitchen, natural materials, Farrow and Ball and bespoke wardrobes.

50m2
0m2300m2

The construction cost will depend on several factors including the complexity of the design detail, extent of structural works and level of fixtures, fittings and material used for finishes. It does not include professional fees, statutory fees, environmental assessment, planning or any other third-party fees,  (Section 106, CIL regulation). Prices are updated at regular intervals but may not fully reflect the current inflation based on geography or political crises. Always ask your construction consultant to conduct due diligence on your timescale, budget and project risk. 

REFURBISHMENT

BUILD QUALITY EXPLAINED
Standard - e.g. Howdens Kitchen, Topps Tiles, UPVC windows.
Good - e.g. Pogenpol Kitchen, Porcelain tiles, Aluminum windows.
Excellent - e.g. Bespoke Kitchen, natural materials, Farrow and Ball and bespoke wardrobes.

50m2
0m2300m2

The construction cost will depend on several factors including the complexity of the design detail, extent of structural works and level of fixtures, fittings and material used for finishes. It does not include professional fees, statutory fees, environmental assessment, planning or any other third-party fees,  (Section 106, CIL regulation). Prices are updated at regular intervals but may not fully reflect the current inflation based on geography or political crises. Always ask your construction consultant to conduct due diligence on your timescale, budget and project risk. 

LOFT CONVERSION

BUILD QUALITY EXPLAINED
Standard - e.g. Howdens Kitchen, Topps Tiles, UPVC windows.
Good - e.g. Pogenpol Kitchen, Porcelain tiles, Aluminum windows.
Excellent - e.g. Bespoke Kitchen, natural materials, Farrow and Ball and bespoke wardrobes.

50m2
0m2300m2

The construction cost will depend on several factors including the complexity of the design detail, extent of structural works and level of fixtures, fittings and material used for finishes. It does not include professional fees, statutory fees, environmental assessment, planning or any other third-party fees,  (Section 106, CIL regulation). Prices are updated at regular intervals but may not fully reflect the current inflation based on geography or political crises. Always ask your construction consultant to conduct due diligence on your timescale, budget and project risk. 

Typical Cost Breakdown

This chart illustrates the typical cost distribution for a self-build project, providing insight into how various expenses contribute to the overall budget.
Finishing - 8%
0%
Misc Work - 9%
0%
Super Structure - 21%
0%
Roof Structure & Coverings - 11%
0%
Windows & Doors - 6%
0%
Plumbing & Heating (connections) - 9%
0%
Electric Works - 7%
0%
Joinery - 6%
0%
Plastering - 6%
0%
Finishing - 8%
0%
Misc Work - 9%
0%