Measured Surveys London
Our Process
Every great home design starts with accurate measurements. Our residential measured surveys give homeowners across London the clarity they need before starting extensions, renovations, or full design projects. We capture every detail of your existing home, so your architect or designer can create plans with confidence and precision.
STEP 1
Site Visit and Measurement
We visit your home to record precise dimensions and key details of each room, wall, window, and feature. Using modern laser technology, we take accurate measurements of floor plans, elevations, and ceiling heights. This gives a clear, reliable picture of your property’s layout and structure the essential starting point for any successful design.
STEP 2
Creating Your Drawings
Once all measurements are taken, our team produces detailed CAD drawings of your home. These digital plans show floor layouts, openings, rooflines, and external surroundings in exact scale. They’re ready to use for design development, planning permission, or structural design, depending on the next stage of your project.
STEP 3
Review and Delivery
Before we send your survey drawings, they’re carefully checked by our design team to ensure complete accuracy. You’ll then receive your measured survey in the file format you prefer, ready to share with your architect, designer, or planning consultant.








Why Choose Our Measured Survey Services in London?
The Right Start for Your Home Project
Every successful home transformation begins with a clear understanding of your existing space. Our residential measured surveys give you and your designer an accurate foundation to plan extensions, loft conversions, or full home renovations without uncertainty or costly revisions later on.
Precision You Can Trust
Using the latest laser measuring equipment, we capture every wall, window, and ceiling height with millimetre precision. This means your survey drawings reflect your home exactly as it is, helping your architect design confidently and avoid errors during planning or build stages.
Smoother Design and Planning
Accurate data makes everything easier, from developing design concepts to submitting drawings for planning approval. With a complete and reliable set of plans, your designer can progress faster, reducing the risk of delays, redesigns, or unexpected costs once work begins.
Clear, Professional Drawings
We deliver drawings that are easy to read and ready to use in most architectural software. Whether you’re working with Happy Building for the full design process or sharing the files with another designer, your plans will be practical, consistent, and formatted for smooth collaboration.
Local Knowledge that Makes a Difference
Working across London and Surrey, we know the character and layout of local homes, from period terraces to modern detached houses. Our experience with borough-specific requirements means we understand what local planners expect, helping your project move forward more efficiently.
95%
of our clients say
they’d build with us again
"Happy Building guided us from planning to build with zero stress — and stayed exactly on budget. We’d do it again in a heartbeat."


150+
"Nothing but positive words to say about our experience with Happy Building so far. Geo took our brief and nailed it more or less straight away and we've been impressed with the service to date. Working with Geo on our project has made life a whole lot easier & something that initially seemed so daunting/stressful has so far been a delightfully calm experience. Can't wait to see what comes next."


6 in 10
“We chose Happy Building because they provide both the design and build process, and we had seen their local projects and were impressed. Happy Building has a straightforward process — we knew exactly what was happening and when. We knew what the cost would be and there were no surprises. They were proactive in their approach to any challenges that came up — they always came with a solution. Their team were accessible, engaged, and helpful at all stages. The build has transformed our house and changed the way we live in it — it’s better than we thought it would be!”



“We were very pleased with our experience working with Happy Building, especially Geo. He designed us a range of fantastic designs, including costing them up transparently and fairly. He was patient with our differing decisions, gave really sound advice, and communicated with us promptly and clearly. We wouldn't hesitate to recommend them!”


95%
of our clients say
they’d build with us again
"Happy Building guided us from planning to build with zero stress — and stayed exactly on budget. We’d do it again in a heartbeat."


Checked, Compliant, and Reliable
Each survey is reviewed by our senior team before delivery to ensure every measurement is accurate and complete. We follow recognised industry standards so your plans are suitable for planning, tendering, and construction, giving you confidence that everything is built on solid foundations.Each survey is reviewed by our senior team before delivery to ensure every measurement is accurate and complete. We follow recognised industry standards so your plans are suitable for planning, tendering, and construction, giving you confidence that everything is built on solid foundations.










Common Uses for Measured Surveys
Home Extensions and Loft Conversions
If you’re planning to extend your home or convert your loft, an accurate measured survey is the first essential step. Our detailed plans give your architect the precise dimensions needed to design safely, efficiently, and in line with your property’s existing structure.
Renovations & Refurbishments
For internal remodelling or full-scale renovations, knowing the true layout and condition of your home helps avoid costly surprises. Our surveys capture every wall, floor level, and feature, giving designers and builders a clear picture to work from, even in older or listed properties.
Planning Applications
When applying for planning permission, accurate measured drawings are vital. We provide verified plans that meet the requirements of London’s local councils, helping your submission move smoothly through the approval process.
Structural Engineering
Before structural work begins, engineers often need precise data on your home’s dimensions. Our surveys supply the reliable measurements they require to calculate loads and reinforcements confidently, ensuring your project is built on solid information.
Home Records and Property Information
A measured survey isn’t only useful for design work. It also provides a lasting record of your home’s layout for insurance, valuation, or future improvements, giving you professional documentation that can be referred to at any time.
3D Laser Scanning and Digital Modelling
For larger or more complex homes, we offer advanced 3D laser scanning to create highly accurate digital models. These detailed models capture every feature of your property, allowing your architect to plan and visualise designs with precision. The result is a realistic, data-rich digital version of your home that supports confident design and smooth project delivery.
Data Accuracy and Confidentiality
Your survey data is handled securely from start to finish. We use encrypted file transfers and strict privacy measures to protect your property information, ensuring only authorised project partners can access it. Every deliverable meets our commitment to accuracy, transparency, and professional confidentiality.
Start Your Home Project with Confidence
If you’re planning a home extension, renovation, or new build, start with an accurate measured survey. We offer clear pricing, fast turnaround times, and precision drawings that give you and your designer the perfect foundation to plan, design, and build happily.








Contact us
Frequently Asked Questions
How long does a measured survey take?
Most residential surveys are completed within a few hours, depending on your property’s size and complexity. You’ll usually receive your drawings within 3 to 7 working days after the visit.
What should I prepare before the survey?
If available, share any existing floor plans, details about access, and which parts of the home need measuring. It’s also helpful to tell us your project goals, whether it’s a renovation, extension, or design update, so we can tailor the survey accordingly.
Can you survey listed or period homes?
Yes. We regularly work on listed and heritage properties across London. Our non-invasive laser scanning captures every detail accurately while preserving delicate finishes and materials.
Do you provide land or garden surveys too?
Yes. Alongside measured building surveys, we can carry out topographical surveys to map your garden, boundaries, and surrounding levels, ideal for new builds, landscaping, or drainage planning.
What file formats will I receive?
You’ll receive your drawings in DWG and PDF formats, suitable for architects and designers. We can also provide files compatible with Revit, SketchUp, or other design software if needed.
Can you update the survey if my plans change?
Of course. If your home layout or project scope evolves, we can revisit and update your drawings so they remain accurate and fully aligned with your latest designs.Of course. If your home layout or project scope evolves, we can revisit and update your drawings so they remain accurate and fully aligned with your latest designs.