Party Wall Cost Estimator
Estimate typical party wall surveyor fees based on your project type, neighbours affected, and whether an Award is likely.
Lofts • Extensions • Excavations
Consent vs Award
One owner or multiple
How to Use This Estimator
Select the options that best match your build. If your neighbour is likely to dissent (or doesn’t respond), costs usually increase due to formal steps and extra documentation.
What This Estimate Covers
- Typical fee ranges for common London projects
- Consent vs Award scenarios
- Adjustments for property type and neighbour count
What Usually Increases Cost
- Both sides / multiple owners (flats above & below)
- Basement or underpinning works
- Slow or contentious responses
- Unclear drawings or scope changes
- Tight access and working restrictions
Get Accurate Quotes (Checklist)
- Postcode + property type
- Work type (loft/extension/basement/excavation)
- Target start date
- Drawings/structural info (if available)
- Neighbours affected
FAQs
Is this calculator accurate?
It’s a budgeting guide. Final fees vary with complexity, drawings, access, and neighbour response.
Does this include builder costs?
No—this is for party wall surveying fees only.