Dear Team,
“Know my build supported us through a challenging claim and final account. They explained everything clearly and helped us engage confidently with both the architect and the contractor.”
Cost Estimates and Cost Plans
Cost Estimates and Cost Plans for UK Building Projects
Find out what your project should cost before you commit to it. We price your drawings for labour, materials and plant, and send back a clear estimate or cost plan you can set a budget, plan finance and compare builders' quotes against. For homeowners, developers, architects, builders and contractors across the UK.
200+
Projects Estimated
10+
Years Of Experience
NMR2
Measured
1
Fixed quote in one working day
About the service
What Is a Construction Cost Estimate?
A construction cost estimate tells you what your building project should cost, based on your drawings and specification. It brings labour, materials, plant, site costs and subcontract work together into one total, broken down so you can see where the money goes.
The detail depends on your project stage. With concept or planning drawings, we prepare a cost plan by building element to set your budget. Once technical drawings are ready, we measure the quantities and price the work trade by trade.
When to get one
Before you buy a site, submit for planning or ask builders to quote. A cost you have early is easier to act on than one that arrives after the design is fixed.
What we need
Your drawings (concept, planning or technical), any specification, the site location and anything you already know about the build, as PDF, DWG or DXF.
What's Involved
- A review of your drawings, specification and brief
- Measurement of the main quantities from the drawings
- Pricing of labour, materials and plant at current UK rates
- Allowances for site costs, subcontract work and contingency
- A list of assumptions and exclusions
- A final check before issue
What You Receive
- Cost estimate or cost plan: the total project cost, broken down by building element or by trade
- Cost summary: the main cost headings on one page, for quick decisions and conversations with lenders or builders
- Assumptions and exclusions: what the figure includes and what it leaves out, so nothing is taken for granted
- Format: Excel and PDF
Who It's For
- Homeowners and self-builders: set a realistic budget before you talk to builders
- Property developers: test whether a scheme stacks up before you buy land or commit
- Architects and designers: give clients a cost that matches the design
- Builders and contractors: get a priced estimate when there is no time to do it in-house
- Construction companies: check costs at key stages before committing to a project
What we offer
Our Cost Estimates and Cost Plans for UK Building Projects Services
How it works
How Our Cost Estimates and Cost Plans for UK Building Projects Process Works
Share Your Project
Upload your drawings, tell us your project stage and what you need the estimate for.
Review Your Quote
We reply within one working day with a fixed price and a delivery date. No obligation.
Receive Your Estimate
Your estimate arrives in Excel and PDF with its assumptions listed, ready to budget, plan finance or compare quotes against.
Turnaround line
Larger and commercial projects are confirmed in your quote.
Revisions line
Design changed? We can update your estimate as the drawings develop.
Why choose us
Why Choose Know My Build for Your Cost Estimate
Your estimate is prepared by a London-based estimating team with 10+ years in UK construction, and covered by professional indemnity insurance.
Cost Intelligence
Every total is built from quantities and rates you can follow, from the first budget to the detailed estimate.
Bespoke Estimating
Set out by element or by trade, to suit your project stage and how you plan to build.
Commercial Clarity
Assumptions, exclusions and allowances stated, so you know exactly what the figure covers.
Expert Project Support
A named estimator talks you through the figures and answers your questions.
Professional indemnity insured
Measured to NRM2
London-based team
Client feedback
What Our Clients Say
Common questions
Frequently Asked Questions
It depends on how detailed your drawings are. An early estimate from concept drawings carries more allowances than a detailed estimate from technical drawings. We state every assumption, but no estimate can fix the final cost, because prices and designs change.
Ready to Price Your Project?
Free fixed quote within one working day.
Get in touch
Request Your Cost Estimates and Cost Plans for UK Building Projects Quote
Send your drawings and tell us about your project. We'll reply with a fixed quote within one working day.
What happens next
- 01We review your drawings
- 02We send a fixed quote
- 03You decide