Professional Land & Drone Surveys
Across London & the South East
Topographical, measured building, utility and drone surveys for planning, development and construction. Request a survey quote or speak with a survey specialist.
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When You Need a Survey
From planning applications to extensions and development — when to commission a land or drone survey.
Planning Permission
Most planning applications need an up-to-date topographical survey and often a measured building survey of existing structures.
Learn moreExtension or Refurbishment
Accurate existing drawings reduce design risk and avoid costly surprises on site. Measured building and topographical surveys give your architect a reliable base.
Learn moreDevelopment or Feasibility
Before committing to design and planning, developers need site levels, utilities and existing structures mapped. We help scope the right survey package.
Learn moreDrone Survey
Ideal for large sites, roof inspections and progress monitoring. Drone surveys deliver orthophotos, contours and 3D data quickly.
Learn moreNot sure which survey you need? Speak with a survey specialist for tailored advice.
Land & Drone Surveying Services
Topographical, measured building, utility and drone surveys for planning, development and construction.
Topographical Survey
Detailed land surveys showing existing ground levels, features and boundaries.
- Accurate base drawings for architects and designers
- Reduces risk of clashes and rework on site
- Supports planning applications and feasibility studies
Measured Building Survey
Accurate internal and external measurements of existing buildings.
- Reliable as-existing drawings for design and planning
- Reduces surprises during strip-out and construction
- Supports structural, M&E and space planning work
Utility Survey
Detection and mapping of underground services before excavation.
- Improves safety by reducing service strike risk
- Informs design of foundations, drainage and utilities
- Supports CDM and safe system of work documentation
Drone Survey
Rapid aerial surveys for sites, roofs and structures using UAVs.
- Covers large sites quickly and safely
- Reduces the need for working at height
- Generates orthophotos, point clouds and terrain models
Survey Types for Construction and Property
Not sure which survey you need? Our survey partners help you choose the right scope for planning, extensions and development.
Request a Survey Quote
Not sure which survey you need for your project? Our survey partners help you choose the right scope for planning, extensions and development. Speak with a survey specialist or request a fixed quote.
The Mainline Surveys Difference
What sets us apart from other survey providers in London and the South East.
RICS-Linked Partners
Survey work delivered by qualified, experienced land and measured building surveyors.
Planning-Ready Data
CAD and BIM deliverables that fit straight into design and planning workflows.
Drone & Ground Survey
Total station, GNSS, laser scanning and drone surveys for the right fit for your site.
Transparent Pricing
Clear quotes with no hidden costs. Fixed fees where scope allows.
London & South East
Coverage across London, Surrey, Kent, Essex and surrounding counties.
Quick Turnaround
Efficient mobilisation and delivery so your programme stays on track.
Recent Projects
Take a look at some of our recently completed survey projects across London and the South East.
Topographical Site Survey
Chelsea
Full topographical survey for a residential redevelopment site to support planning and design.
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Measured Building Survey
Canary Wharf
As-built floor plans, elevations and sections for a commercial office refurbishment.
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Drone Survey for Development Site
Richmond
Drone survey and orthophoto for a multi-plot development site prior to planning submission.
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Utility Mapping Survey
Wimbledon
Underground utility detection and mapping before excavation and foundation works.
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Drone Roof Inspection
Ealing
Roof condition survey and imagery for a period property ahead of refurbishment.
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Boundary Survey
Kensington
Boundary survey to clarify the extent of the title for an extension and party wall matters.
View ServiceWhat Our Clients Say
Don't just take our word for it – hear from some of our satisfied clients.
The topographical survey was delivered on time and the CAD drawings fitted straight into our design workflow. Clear, professional and exactly what we needed for planning.
We use Mainline Surveys for measured building and drone surveys across our development portfolio. Reliable data, clear pricing and no surprises on site.
Booked a drone survey for our extension project. The orthophoto and levels were spot-on and saved us a lot of design time. Would recommend.
Survey Cost Guides
Typical UK pricing for land and drone surveys. Get a fixed quote by sharing your site and requirements with our survey partners.
From Our Blog
Industry insights, project updates, and expert advice from our team.
When Do You Need a Topographical Survey?
From planning applications to extension design — when to commission a topographical survey and what you get.
Drone Surveys vs Traditional Surveys
How drone surveys compare to total station and GNSS surveys — speed, cost and when to use each.
Survey Requirements for Planning Permission
What land and building surveys planners expect to see and how to avoid delays on your application.
Frequently Asked Questions
Need a Survey Quote?
Get in touch for a free, no-obligation survey quote. Speak with a survey specialist or book a site survey.