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Merrett Survey Limited

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Merrett Survey Limited

Merrett Survey Limited provides topographical surveys, land surveys, measured building surveys and a

It is the aim of Merrett Survey to meet the needs of their clients by providing a high quality cost effective topographical survey service (Geomatics as it is now known). Our surveying capabilities are wide ranging and include:

- Topographical site survey
- Ground support of airborne laser scanning - Lidar
- Terrestrial laser scanning,
- GPS - ( Global Positioning System ) expertise
- Conventional land surveying
- Consultancy for surveying specifications
- Near-shore hydrographic survey - bathymetry
- Tide and current monitoring
- GIS data acquisitio
- Aerial mapping and photogrammetry. Our specialisations include the practical application of GPS to any surveying task, especially Lidar (airborne laser scanning), storage tank surveys and pipeline mapping. Contact Merrett Survey at an early stage in your project development plans for advice on all topographic survey matters and a full land survey service. Merrett Survey Limited offers professional land surveying - anywhere on the planet.

27/10/2026

Building sustainably starts with making informed decisions.

Accurate BIM survey data helps reduce material waste, improve collaboration and support better planning throughout the lifecycle of a project.

By providing accurate, information-rich models, BIM helps project teams:
✅ Reduce material waste through more accurate quantity calculations
✅ Identify design changes before construction starts
✅ Improve collaboration between architects, engineers and contractors
✅ Support better-informed decisions throughout a building's lifecycle

At Merrett Survey, our BIM surveys provide the accurate data needed to help projects move forward with greater confidence and efficiency while supporting more sustainable construction practices.

Contact our team to discuss your next project:
https://merrettsurvey.com/contact-us/

20/10/2026

Thinking a UAV survey might be the correct option for mapping out an upcoming project? Here's why they're becoming the preferred choice for many projects.

✅ Quickly capture data across large sites
✅ Reach areas difficult or unsafe to access on foot
✅ Produce highly detailed aerial mapping and topographical data
✅ Support planning, design and infrastructure projects with accurate datasets

Read our latest blog to learn more:
https://merrettsurvey.com/news/how-accurate-are-uav-surveys/

14/10/2026

Case study: Rapid building survey, Plymouth flats

The brief was speed without losing accuracy, so the design team could move straight into detailed planning. The Merrett Survey team got to work, including:

✅ Handheld laser scanner with SLAM technology
✅ Every room and apartment surveyed at walking speed, no tripods inside
✅ GPS control outside, tripod scanner through the staircases
✅ Accuracy of around ±15mm, suitable for 1:50 floor plans
✅ Minimal disruption to residents

Read the full case study:
https://merrettsurvey.com/knowledge-centre/case-studies/building-plymouth/

08/10/2026

Rapid reality capture to record the exact physical dimensions of a building or structure.

Using non-contact laser scanning, we capture every beam, archway, window and uneven floor level digitally - preserving fragile architectural features while giving conservation teams highly accurate data.

Our heritage surveys deliver detailed point clouds, CAD drawings, BIM models and Digital Twins for future conservation work.

Learn more:
https://merrettsurvey.com/sectors/heritage/

06/10/2026

How much room for error is there on a rail possession? Almost none, and that is the whole challenge.

The window of opportunity when it comes to operations teams surveying the track is short, fixed and booked well ahead. Track alignment is measured in millimetres and tunnel clearances have to be exact, so everything has to be captured properly first time. You cannot pop back tomorrow for the bits you missed.

We have been working on track, tunnel and bridge schemes across the UK since 1982, so the standards and the data formats rail teams need are second nature to us.

Got a possession in the diary? The earlier we see the scope, the better the plan.

Find out more about our rail survey experience: https://merrettsurvey.com/sectors/rail/

02/10/2026

Could outdated building drawings put your refurbishment project at risk?

In many cases, yes. Relying on out-of-date drawings or manual measurements can lead to costly design changes, clashes on site and delays.

A measured building survey gives architects and engineers accurate floor plans, elevations, millimetre-accurate 3D laser scan data and BIM-ready models to work from before design begins.

Learn more:
https://merrettsurvey.com/services/measured-building-surveys/

25/09/2026

Topographical surveys are a big part of what we do at Merrett Survey, helping clients get a clear picture of a site before work begins.

From roads and infrastructure to major industrial projects, every site has its own challenges, and accurate survey data helps make sure the design starts with the right information.

We’ve carried out topographical surveys in 62 countries, including work on Highway One between Phnom Penh and Ho Chi Minh City and an LNG process plant extension in Equatorial Guinea.

Our surveys can cover everything from ground levels and boundaries to buildings, roads and other site features, with data supplied in the format your project needs.

Want to know more about topographical surveys and how we carry them out? Read our guide for more information.
https://merrettsurvey.com/news/an-in-depth-guide-to-topographical-surveys/

Contact us on 📞 01392 362161 or email us at 📧 [email protected] to talk through your project.

22/09/2026

Top four questions we get asked when it comes to laser scanning:

1️⃣ How accurate is it? Our terrestrial scanners capture millions of points with millimetric accuracy - accurate enough for retrofit design without costly on-site surprises.

2️⃣ What can it be used for? Everything from schools, hospitals and museums to prisons and civic buildings, alongside commercial and residential sites.

3️⃣ What do we deliver? Point cloud data that feeds straight into Revit models, BIM outputs and as-built survey records.

4️⃣ Does it work on older buildings? Yes - our heritage scanning documents listed buildings and historic structures for conservation and restoration planning.

Considering laser scanning for your next project? Find out more 👇
🌐 https://merrettsurvey.com/services/laser-scanning-bim/

Contact us on 📞 01392 362161 or email us at 📧 [email protected] to talk through your project.

18/09/2026

What do we do when a site is too dangerous, too large or too awkward to survey on foot?

We take to the air. Whether that's a fixed-wing aircraft or one of our UAVs - including our Amalfi Parrot drone, with a swivel camera built for looking upward under bridges, pontoons and storage tanks - aerial surveys reach places ground teams simply can't access safely.

✔️ LiDAR mapping, day or night
✔️ Thermal mapping for solar arrays
✔️ Coverage of transmission lines, highways and railway corridors

Ready to see what an aerial survey could do for your project? Take a look 👇
https://merrettsurvey.com/services/topographical-survey/aerial-surveys/

Contact us on 📞 01392 362121 or email us at 📧 [email protected] to talk through your project.

15/09/2026

Merrett Survey recently carried out terrestrial laser scanning at Weston-super-Mare, on behalf of North Somerset Council where we laser scanned the north jetty at Birnbeck Pier.

This data was combined with an authorised drone survey to capture the top deck, which was unsafe to access.

Ground-based terrestrial laser scanning produces high-accuracy point clouds, which can be used to create 3D models for engineers to work with when designing replacement components or when planning remedial works.

The LiDAR onboard the drone is able to capture a high accuracy point cloud with true RGB colours. The LiDAR is also able to pe*****te dense foliage and map the terrain in forested areas where traditional ground-based surveying would be very time consuming and expensive.

Are you looking for accurate, high-detail survey data for your next project? We use the latest laser scanning and drone survey technology on projects all around the UK.

Address

3 Merlin Business Park, Fairoak Close, Exeter Airport
Exeter
EX52UL

Opening Hours

Monday	9am - 5:30pm
Tuesday	9am - 5:30pm
Wednesday	9am - 5:30pm
Thursday	9am - 5:30pm
Friday	9am - 5:30pm

Website

https://merrettsurvey.com/

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