Updated June 2026 — prices reflect 2026 market conditions
What Is a Measured Survey?
A measured building survey records the geometry and architectural features of a property so professionals can work from reliable dimensions instead of estimates. It is commonly used by architects, engineers, developers, and landlords when planning extensions, conversions, redevelopments, or internal fit-outs. It produces accurate as-built drawings or a 3D model for design, planning, refurbishment, or lease and space planning work.
Typical Costs (Hounslow/London 2025)
| Project Type | Price Range (ex VAT) | | --- | --- | | Small flat/house | From £495 | | Average measured survey | £800–£2,000 | | Average London survey | ~£1,400 | | 2D drawings | From £375 per drawing | | 3D BIM model | From £550 per model | | Large commercial | £5,000–£50,000+ |
Final fee depends on building size, floors, deliverables, location, and level of detail. London prices are typically higher due to access difficulty and congestion.
Deliverables
Common deliverables include:
- 2D CAD drawings (DWG + PDF): floor plans, roof plans, external elevations, ceiling plans, cross-sections
- 3D BIM model (Revit): LOD 200–400
- Point cloud data (.RCP/.RCS): raw 3D laser scan data
Delivery typically takes 3–5 working days after the site visit.
Hounslow Coverage
We provide measured surveys throughout the London Borough of Hounslow including:
- Hounslow, Brentford, Isleworth, Chiswick
- Feltham, Cranford, Heathrow, Heston
- Whitton, Teddington, and all surrounding TW postcode areas
We also cover neighbouring boroughs: Ealing, Richmond upon Thames, Hillingdon, and Kingston upon Thames.
What to Ask For
When requesting a quote, provide:
- Full address
- Any existing plans or photos
- Intended use of the survey
- Exact deliverables needed (internal, external, or full coverage)
Example brief: "2D measured survey of a 3-storey terraced house in Hounslow, including floor plans, roof plan, 4 elevations, and 2 sections, delivered in DWG and PDF."
Frequently Asked Questions
Q: What format are the drawings delivered in?
AutoCAD (DWG) and PDF as standard. 3D BIM/Revit models and point cloud data available on request.
Q: How long does a measured survey take?
On-site: 1–2 days depending on property size. Delivery: typically 3–5 working days after the survey.
Q: Do I need a measured survey for planning permission?
Yes — most planning applications require accurate existing drawings showing current conditions, elevations, and site plan.