Foundation Cost Guide UK
Foundation cost depends first on foundation type (strip, pad, raft, piled), then on dig depth, concrete volume, reinforcement, access, and ground risk. Published £/m² or £/pad figures are rough budgeting aids only.
For rate-led pages use /groundworks-costs (foundation cost per metre, concrete foundation cost, and related URLs). This guide explains drivers so a quote brief is complete.
review Piling Contractors in Tonbridge and Piling Contractors in London.
When a budget range is useful — and when it is not
At feasibility when choosing between shallow and piled solutions; when comparing extension foundation options; or when quotes omit excavation, disposal, or inspection attendance.
Cost drivers that move the figure
- Strip foundations — indicative ranges often quoted around £150–250 per m² (highly site-specific)
- Pad foundations — indicative ranges often quoted per pad (size-dependent)
- Raft foundations — indicative ranges often quoted around £120–200 per m² (specification-dependent)
- Piled foundations — see piling cost drivers; not a single shallow rate
- Ground conditions and access dominate final price
Guide ranges help with budgeting. For a site-specific figure, send drawings and site details — or call for a quick scoping conversation.
Get an Accurate QuoteWhat you are usually paying for
A foundation package may include excavation, disposal, blinding, reinforcement, concrete, and associated drainage or beam works. GI and structural design determine type; groundworks contractors price construction, not the design decision.
Why published rates cannot replace a site quote
Clay/frost depth, water, temporary support, and contaminated arisings move cost faster than “strip vs raft” labels alone.
How to get a usable figure
Issue GI summary, foundation drawings, levels, and access notes. Use the calculator for order-of-magnitude budgeting, then site quotes for commitment.
Information that improves quote accuracy
- Foundation drawings and schedules
- GI summary
- Assumed disposal route
- Inspection and testing expectations
From budget conversation to priced package
Step 1: Confirm foundation type
What this step delivers: Design type locked.
Step 2: Quantify dig and concrete
What this step delivers: Volumes and depths understood.
Step 3: Price with exclusions listed
What this step delivers: Comparable tenders.
Frequently asked questions
Why is my foundation quote higher than an online £/m²?
Online bands omit depth changes, support, disposal classification, reinforcement, and access. Site quotes include those realities.
Next steps from budget range to quote
Use these links to refine scope, then request a programme-ready quote:
We provide these services across the UK, including
Get a Free Quote
Contact us for a no-obligation quote or to discuss your project. We'll advise on the best approach and provide clear pricing.
Get an Accurate QuoteSend foundation drawings for a construction quote.
Related Services
Piling for new builds, extensions and structural works on difficult or tight sites.
Foundation ContractorsCommercial and residential foundation contractors: strip, raft, pad and piled solutions to engineer's design.
Concrete FoundationsReinforced and mass concrete foundations and ground beams.
Related Topics
Related Groundworks Guides
Contact Us
Discuss Your ProjectFoundation Cost Guide UK FAQ
Why is my foundation quote higher than an online £/m²?
Online bands omit depth changes, support, disposal classification, reinforcement, and access. Site quotes include those realities.
Need project guidance?
Share your site details and priorities. We will outline a practical scope, likely timeline, and next steps.