Measured Survey vs As-Built Survey: What's the Difference?
In the UK property and construction market, measured survey and as-built survey are terms used interchangeably — there is no technical or regulatory difference between them. Both refer to a professional measured drawing of an existing building or site, capturing dimensions and geometry for use in design, planning, and property transactions.
UK Survey Terminology Explained
| Term | Definition | Use | | --- | --- | --- | | Measured survey | Survey of existing building | Design reference | | As-built survey | Survey of existing building | Post-construction verification | | Existing conditions survey | General term | Any existing property | | Record survey | Survey for archival purposes | Heritage, planning | | Digital survey | Measured using laser/FJD Trion P1 | Modern delivery |
When Are These Terms Used?
| Term | Typical Use | Who Uses It | | --- | --- | --- | | Measured survey | Planning, design reference | Architects, developers | | As-built survey | Post-construction verification | Main contractors | | Existing conditions | Pre-acquisition | Property buyers, agents | | Record survey | Heritage, conservation | Heritage consultants |
What Both Include
Both a measured survey and an as-built survey provide the same core deliverables:
| Deliverable | Description | | --- | --- | | Floor plans | All levels with dimensions | | Elevations | All four sides with heights | | Sections | Cross-sections as required | | Site plan | Boundary driving dimensions | | Levels | Floor-to-floor and site levels |
Measured Survey vs As-Built Survey: Comparison Table
| Factor | Measured Survey | As-Built Survey | | --- | --- | --- | | Purpose | Pre-design reference | Post-completion verification | | Timing | Before design work begins | After construction | | Scope | Existing conditions | Existing conditions | | Deliverables | Plans, elevations, sections | Plans, elevations, sections | | Terminology | UK market — same meaning | UK market — same meaning | | Pricing | Fixed fee | Fixed fee |
When to Commission Each
| Scenario | Survey Type | | --- | --- | | Planning application | Measured survey | | Architectural design | Measured survey | | BIM coordination | Measured survey | | Post-completion verification | As-built survey | | Lease end Schedule of Condition | As-built survey | | Building control submission | As-built or measured |
2025 Measured Survey Costs (ex VAT)
| Property | DWG + PDF | Full Survey | | --- | --- | --- | | 2–3 bed | £400–£600 | £600–£900 | | 4+ bed | £500–£800 | £800–£1,200 | | Commercial | £800–£1,500 | £1,200–£2,000 | | Listed | £900–£1,500+ | £1,500–£2,500+ |