3D Laser Scanning London

Laser scanning service from London architects and building managers trust
Accurate, fast and highly detailed. If you’re looking for expert 3D scanning in London, you can rely on Callidus Building Surveys Ltd, one of the UK’s premier specialist laser surveyors.
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Some of our valued clients
Exceptional Quality Surveys

Our uniquely developed ‘whole building’ approach to 3D scanning in London means you’ll receive a higher quality measured survey, a whole lot faster. A survey you can trust, from experts meticulously trained in our proven methods, all quality checked by a Callidus Surveys principal measured surveyor.

Leading-Edge Equipment

We’ve invested in the highest specification leading edge 3D scanning equipment and software, so London buildings can be surveyed in the finest detail. With millions of co-ordinated points captured per second and vast quantities of data collated in minutes, you get all you need to produce exceptionally accurate drawings, in double-quick time.

Hassle-Free Service

With decades of experience, and a team built with some of the best-trained laser surveyors London and the UK has to offer, you’ll experience nothing but the most efficient, hassle-free service. So you can focus on your own work, and leave the deadlines, and the detail, to us.


3D Scanning Explained

3D laser scanning is the modern way to collect spatial data onsite which can then be used to create the likes of plans, cross sections and elevations. It can be used in any setting, from prestigious, heritage and listed buildings, to new developments and small residences.

We’ve been using 3D scanning in London and UK-wide for all our surveys since 2016, with the traditional hand measurement method reserved only for site checks and localised fine detail.

The laser scanning building technology allows us to create incredibly detailed 3D models of historical structures. 3D scanning measures and records millions of discrete data points within its field of vision every second, building up a point-cloud of the building or structure you want to capture. Multiple point-clouds from around the site are then stitched together to produce a full and spatially accurate 3D depiction of the space.

Some of our team members
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Based on 25 Reviews

Accuracy, Service, Expertise

Our ethos

Established in 1999, Callidus Surveys have become known as industry-leading, trusted experts in measured building surveys, including the specialist skill of 3D scanning. Our founding directors remain hands-on, keeping the business grounded and at the forefront of industry innovation, and ensuring the driving values of accuracy, service and expertise remain embedded in our service-driven ethos.


We recognise the importance of accuracy in your work. And that’s why we’ve made it a top priority in ours, by investing in top of the range 3D scanning equipment.


Your time is precious. It’s why we’ve made our service hassle-free, so you can get on with your day, while we get on with your 3D scanning measured survey.


Callidus Surveys is home to some of the best laser surveyors in London and beyond. For a better class of survey you can totally rely on, choose Callidus.

Looking for Expert Laser Scanning Services in London?

Email us your survey specification and we’ll get back to you with a tailored quote for a detailed measured survey using our cutting edge 3D scanning technology.

Our feedback


The service offered by Callidus was exemplary at every stage: from the initial discussions and advice about what was required and how best to achieve it, through the surveyors on site who were actively engaged with the brief and went the extra mile, to the high quality drawings produced.

For responsiveness and professionalism, the Callidus team cannot not be bettered – I highly recommend them.

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Jan Davison

Measured Surveys London

Our specialist expertise


Flexible, methodical and experienced in working in educational environments, Callidus Surveys has the knowhow to tackle the logistical challenges that so often go hand in hand with 3D scanning for London schools.


For 3D scanning from a London specialist who truly understands the intricacies of ecclesiastical buildings, choose Callidus Surveys. From contemporary chapels to period monoliths, places of worship are a core specialism.


Occupied, vacant, small or large, our well-practised discreet onsite operations allow us to flow efficiently through an office building, capturing all the data needed to create accurate and detailed measured surveys through leading edge 3D scanning methods.


Our no-fuss 3D scanning for London residences delivers the quality and accuracy that matter, in the timeframe you need. From studios to mansions, we have developed and continue to refine our process, so you can confidently leave everything to us.

Charlie Elliott
Charlie Elliott
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Very pleased with the overall service from the Callidus team. They provided a quote quickly, completed the survey within the agreed timescales and all for a competitive price.
Richard Close
Richard Close
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We were struggling to find a reliable competent survey company. Callidus stepped up to the plate and exceeded our expectations. They listen to whats required and assist in any way they can.
Alice Brown
Alice Brown
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We recommend Callidus to all our clients whenever a survey of existing buildings or external areas is required. They are very good at anticipating our requirements, and produce the information promptly.
Nick Haseltine
Nick Haseltine
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As an architect, I have worked with Andrew and his team for a quite number of years and always found them excellent and professional to deal with and the quality of the surveys they carry out is the reason I keep coming back. Well recommended
Home Designing
Home Designing
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Highly recommend, Very fast and prompt service. Andrew was very helpful regarding the project.
James Barrett
James Barrett
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Efficient, reliable, job done well and with a minimum of fuss. Thank you!

3D Scanning FAQ

Whether you have a question about Callidus Surveys, you’d like to know more about the technicalities of our 3D scanning for London buildings, or you could benefit from some guidance in specifying a survey, we’re here to help.

We offer a unique ‘whole building’ approach to measured surveys and 3D scanning London wide, which means everything from the structure, internal and external features and the services of the building are all covered. This results in a higher quality, detail-packed survey, suitable for everything from structural redevelopment and major refurbishment to space planning and lease plans.

With decades of experience and specialist expertise as laser surveyors London and UK wide, employing some of the UK’s finest talent, we deliver a service that’s completely hassle-free.

So whether you’re an architect, local authority, chartered surveyor, property developer or building owner or manager, you can simply give us your specification, and leave the rest to us, safe in the knowledge that everything you need will be delivered to your desk within your specified timeframe, and budget.

What’s more, with every individual 3D laser measured survey overseen by one of our highly experienced principal surveyors, you’ll always know that you’ll be able to trust a Callidus Survey.

A measured survey is a comprehensive survey relating to the external and/or internal aspects of a site, right down to the detail of individual floor plans. All our measured surveys use the latest 3D scanning technology, making them way more detailed and accurate than any traditional hand measuring method could ever be.

Measured surveys are conducted in line with guidance from the Royal Institution of Chartered Surveyors (RICS), which forms the framework of rules for measured surveys of buildings, utilities or land. 

Depending on the scale of a project and specific requirements, measured surveys can take the form of anything from basic floor plans and drawings to highly accurate 3D models. The data collected using highly detailed 3D scanning forms a crucial element of future planning phases, as well as forming the foundation from which all design and development plans are created.

Accuracy and survey quality are vital, as inaccuracies can lead to increased costs, delays and the potential for breaching planning conditions. This is exactly why we’ve invested heavily in the latest cutting edge 3D scanning technology, ensuring we produce the most detailed and precise data sets for our clients’ needs.

Simply send us your specification and we’ll get back to you with a quote for your 3D measured survey.

If you’d like to go ahead, you can either call or email us and we’ll book the survey in for you, doing our best to fit in with any deadlines. All we generally need is an address and confirmation of access, and you can leave the rest to us.

All Callidus measured surveys use 3D scanning and are carried out in strict accordance with RICS Code of Measuring Practice, 6th Edition (updated Jan 2018).

To be able to put a price to your survey, we need to fully understand your requirements.

Below is our standard list of reminders to help you put together a workable specification:

Internal plans at which floors? To include all service switches, sockets, lights outlets etc.?

Note: Standard plans include windows, doors, door swings, structural walls, partitions, floor-ceiling heights, window heights/positions within floor-ceiling, location of downstand beams, sills, heads, parapets, soffits, changes in floor levels, steps, ramps, all significant sanitary fittings, and incoming services where visible.

Topographic survey (external yard, garden plans)?

External elevations? Which elevations? (Specify which faces).

Any off-site elevations for context or rights-to-light? (Specify which faces). 

Fully detailed (including coursing detail and fenestration) or basic (openings and profiles only).

Internal elevations (basic or detailed)?

Note: Internal elevations in every space will more than double the price of your survey. Please be specific in choosing any internal elevations to minimise costs.

Sections through the building? How many? Do you need these internally elevated? Can you provide a plan mark-up of specific required positions?

3D scanning is the latest way of collecting spatial data on a site. The equipment is able to measure and record millions of data points per second within its field of vision. These build up a point-cloud, which depicts the building or structure to be captured.

Each point carries data, such as X, Y & Z co-ordinate, reflective intensity and colour. For every project, there will be multiple point-clouds collected from individual scanner locations. These clouds are then stitched together to produce a full, spatially accurate 3D depiction of the space.

Once the point-clouds from the 3D laser scan have been brought together and correctly positioned using GPS references, they can then be inserted into CAD software.

The point-clouds are then sliced into manageable portions, before lines are traced in CAD in accordance with the scan slice. These slices are created in 3D CAD space to produce the plans (horizontal slice) and cross sections and elevations (vertical slices).

The beauty of 3D scanning is its ability to not just depict walls, windows and doors, but also to produce sufficiently detailed data that allows clear sight of internal and/or external features in exceptionally high resolution. Anything from power sockets and exposed wires, to architectural mouldings and even individual bricks, can all be picked out in the finest detail to be drawn up if necessary.

3D laser scanning has become the preferred method of data capture for measured surveys for a number of reasons. Firstly, it allows for very fast data collection, with the capability to capture vast quantities of data in minutes. Secondly, it is able to capture the elements of the survey in fine detail.

And then there are the safety benefits. The whole process of 3D scanning is contactless, which means our laser surveyors in London don’t need physical access to any element of a building in order to measure it. It also means we can measure hazardous environments without putting personnel at risk.


Need a Quote for 3D scanning in London?

Email us your survey specification and we’ll get back to you with a tailored quote.

Got a question? Our helpful and knowledgeable team of London based laser surveyors are at your service.

Fill in the form below and we will get back to you within 24 hours:
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