As-Built Survey in Hillingdon: What You Need
An as-built measured building survey in Hillingdon (UB8, UB10) captures the exact as-constructed state of a property — providing accurate documentation for planning, design, and property management across West London.
What Is Included in an As-Built Measured Building Survey
| Component | Details | | --- | --- | | Floor plans | Structural walls, door swings, window sill and head heights, floor levels, sanitary equipment, columns | | External elevations | Window and door placements, roof lines, rainwater goods, external finishes | | Cross-sections | Floor-to-ceiling heights, floor thicknesses, stair profiles, roof structures | | Roof plans | Ridges, valleys, pitches, parapets, chimneys, skylights | | Ceiling plans (RCP) | Lighting layouts, exposed beams, bulkheads, HVAC (if requested) | | Site plans | Building footprint, boundaries, external features | | Point cloud data | 3D laser scan data available in E57, RCP, FLS formats |
2025 Costs in Hillingdon and UB8/UB10
| Property Type | Size | Cost (ex VAT) | | --- | --- | --- | | Small residential | Up to 2,000 sq ft | £495–£850 | | Medium residential | ~350m² (3,767 sq ft) | £1,500–£2,200 | | Small projects | Various | £800–£2,000+ | | Large commercial | 10,000+ sq ft | £5,000–£50,000+ | | 2D drawings | Per drawing | From £375 | | 3D BIM model | Per model | From £550 |
London premium: Expect 10–20% higher prices than the UK average in the Hillingdon area.
Standard Deliverables
| Deliverable | Format | | --- | --- | | As-built 2D CAD drawings | DWG (AutoCAD) and PDF | | 3D BIM model | RVT (Revit) | | Point cloud data | E57, RCP, FLS, PTS and PTX | | Drawing register | Versioning, dates, issue log |
Typical turnaround: 3–5 working days from survey completion.
Local Surveyors Serving Hillingdon
| Company | Coverage | Notes | | --- | --- | --- | | Peter Mikos Surveys | Hillingdon UB8/UB10 | 3D laser scanning and as-built surveys | | Measured Survey 365 | Hillingdon and surrounding | Prices from £495 plus VAT, 20-minute quotes |
When You Need an As-Built Survey in Hillingdon
| Project | Survey Required? | | --- | --- | | Planning permission | Yes — required by Hillingdon Council for extensions and conversions | | House extension | Yes — accurate existing drawings for design | | Loft conversion | Yes — floor plans, sections, roof geometry | | Property sale or purchase | Only if property is unusual or complex | | BIM or digital twin | Yes — RICS-compliant measured data for modelling | | Building regulations compliance | Yes — as-built record of completed works |
Frequently Asked Questions
Q: What accuracy is achieved on a measured building survey in Hillingdon?
±10mm for manual measured surveys. ±2mm for laser-scanned surveys. All surveys follow RICS Measured Surveys of Land, Buildings and Utilities specification.
Q: What scale are drawings produced at?
1:50 for detailed design work. 1:100 for planning applications. Confirm with your architect or Hillingdon Council planning department.
Q: How long does the survey take?
Site visit: 1–4 hours depending on property size. Drawing delivery: 3–7 working days. Total: typically 1–2 weeks from instruction.
Q: Can the survey include roof space?
Yes — if safe access is available. Confirm access arrangements with your surveyor before booking.
Q: What file formats will I receive?
AutoCAD DWG (editable) plus PDF. Revit RVT for BIM projects. Point cloud data in E57, RCP, or FLS formats.