Updated June 2026 — prices reflect 2026 market conditions
What Is a Measured Survey?
A measured building survey captures the exact dimensions and geometrical features of a property — both internally and externally — to produce accurate as-built drawings. It uses 3D laser scanning, total stations, and mobile mapping to capture data with ±5mm tolerance. The process is non-intrusive and allows quick data capture without disrupting occupied properties.
Typical Costs (Harrow/London 2025)
| Project Type | Price Range (ex VAT) | | --- | --- | | Small flat/house | £495–£800 | | Average measured survey | £800–£2,000 | | 2D drawings | From £375 per drawing | | 3D BIM model | From £550 per model | | Full building survey | £500–£3,000+ |
Factors affecting cost: property size (GIA), number of floors, LOD required, building complexity, occupancy status, and whether you need internal, external, or both.
Deliverables
| Deliverable | Format | Content | | --- | --- | --- | | Floor plans | DWG, PDF | Structural walls, doors, windows, floor levels, columns, sanitary equipment | | External elevations | DWG, PDF | Window/door placements, roof lines, finishes, rainwater goods | | Cross sections | DWG, PDF | Floor-to-ceiling heights, floor thickness, stair profiles, roof structure | | Roof plan | DWG, PDF | Ridges, valleys, pitches, parapets, chimneys, skylights | | Reflected ceiling plan (RCP) | DWG, PDF | Lighting, exposed beams, bulkheads, HVAC | | 3D BIM model | RVT (Revit), IFC | LOD 200–400, intelligent model from point cloud | | Point cloud data | .RCP/.RCS | Raw 3D laser scan data for further modelling |
Delivery typically takes 3–5 working days for small properties; larger commercial or heritage projects may take up to 3 weeks.
Harrow Coverage
We provide measured surveys throughout the London Borough of Harrow including:
- Harrow-on-the-Hill (HA1), North Harrow (HA2), South Harrow (HA3)
- Rayners Lane (HA5), Pinner, Stanmore, Kenton
- Belmont, Wealdstone, Northolt, and all surrounding HA postcode areas
We also cover the Home Counties: Buckinghamshire, Hertfordshire, Surrey, and Middlesex.
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.