What Is a Topographical Land Survey?
A topographical survey maps the natural and man-made features of a site in detail. Surveyors use Total Stations, GPS/GNSS, and 3D laser scanning to achieve RICS-standard accuracy. Surveys are tied to Ordnance Survey grid and datum.
What Is Mapped
| Feature Type | What's Included | | --- | --- | | Natural | Trees, vegetation, water bodies, ground contours, spot heights, terrain changes | | Man-made | Building footprints, walls, fences, paths, driveways, street furniture | | Utilities | Drainage covers, manholes, visible service points | | Levels | Ground elevations, ridge/eaves heights, bridge soffits |
Key Deliverables
- 2D AutoCAD drawings (DWG format)
- 3D models or BIM/Revit files
- Site levels and contours (critical for drainage and flood modelling)
- Tree positions with canopy spreads (required for London TPO applications)
- PDF plans for planning and construction
- Boundary lines and building footprints
- Drone surveys available for large or inaccessible sites
Costs in London (2025)
| Site Size | Typical Cost (ex VAT) | | --- | --- | | Small residential plot (up to 0.25 acre) | £350–£600 | | Small-medium plot | From £895 | | Medium site (0.25–1 acre) | £600–£1,200 | | Large/complex site (1–5 acres) | £1,200–£2,500+ | | Most property owners | £2,000–£6,500 |
London Coverage
We provide topographical land surveys throughout all 32 London boroughs — including Central, Inner, and Outer London. Surveys are delivered to RICS standards and coordinated to Ordnance Survey National Grid. We also cover the Home Counties (Surrey, Kent, Essex, Hertfordshire, Berkshire, Buckinghamshire).
Frequently Asked Questions
Q: What is the difference between a topographical survey and a measured building survey?
A topographical survey maps the land and external features. A measured building survey captures the interior and exterior of structures. Both may be combined for a complete site and building record.
Q: What coordinate system will my survey use?
Surveys are typically tied to OSGB36 (Ordnance Survey National Grid) with OD heights. Confirm your project coordinate system requirements before briefing a surveyor.
Q: Do I need a topographical survey for planning permission?
Most planning applications require a topographical survey showing levels, boundaries, trees, and drainage. Check with your local planning authority for specific requirements.