Design
For homeowners who need a great design and planning approval.
- Measured survey
- Concept design options
- 3D design visuals
- Planning drawings
- Application submission & liaison
Beautiful residential design, planning approval and build-ready technical packages — coordinated by one team, from the first survey to the day your builder starts.
You've got the idea. We'll help you work out what's possible — then design it, get it approved and make it ready to build.
Most practices stop at planning or building regs. We carry on — until your builder has everything they need to price properly and start.
Our build-ready package brings technical drawings, structural information, specifications and a detailed scope of works together — so builders quote accurately and you compare like-for-like.
You always know what's happening, what it costs and what comes next. Fixed fees, plain English.
Design, planning, technical and structural information are produced together — never in isolation.
Know you're properly prepared before a single builder prices the job — and before a single wall comes down.
Certainty matters, but so does the result. Homes that feel lighter, calmer and genuinely better to live in.
Three clear, fixed-fee packages. Start with design and planning, or hand us the whole journey to a build-ready project.
For homeowners who need a great design and planning approval.
For homeowners who want to get properly ready for construction.
For homeowners who don't want to manage builders, quotes and paperwork alone.
Not sure which you need? Your free project assessment tells you — no obligation.
Every home is different, but the route is the same. Here is what happens at each stage, what you receive, and roughly how long it takes.

Existing plans, elevations and sections in PDF and DWG. Yours to keep.

Building regulations drawings, specification and structural calculations, coordinated together.
Tell us about your home and we will map out the route, the fees and the timings.
Example timeline and illustrative photography. Timings vary by council and project.
You're about to invest serious money in your home. Here's why homeowners trust us with it.
Rated 5 out of 5 on Trustpilot.
“I used Capital for planning and building regs for my kitchen extension. They were great throughout, I couldn't recommend them enough.”
“Great service fast track”
Not ready to talk yet? Start here. Honest, quick answers about cost, planning and your builder's quote.
An indicative construction range to help you plan a realistic budget.
Indicative market ranges to help you plan a budget. Not a quote, and not Capital's fees — every project is priced after your free assessment.
Upload a builder's quote. We'll flag gaps, exclusions and provisional sums before you sign. £1,000 per quote, report within 2 weeks.
Two minutes now saves weeks later. A designer reviews every enquiry personally and comes back with honest, practical next steps.
Planning history, constraints and what similar homes nearby have achieved.
Talk through your ideas, budget and timings with a designer.
The right package for where you are — no pressure, no obligation.
This is where most homeowners get stuck. Planning drawings aren't enough to build from. We produce building regulations drawings, structural calculations and a detailed scope of works, so builders can price accurately and you can compare quotes like-for-like.
Yes. After your free assessment you receive a fixed-fee proposal for your chosen package, listing exactly what's included. If something genuinely changes — for example you add a second storey — we agree any change with you in writing first.
It depends on your property type, location and what you're building. Many single-storey rear extensions and loft conversions on houses can be permitted development — we usually recommend a Lawful Development Certificate for peace of mind. Flats, listed buildings and conservation areas typically need full planning.
We review the quotes you receive against the scope of works — checking for missing items, vague provisional sums and exclusions — and help you compare contractors on a genuine like-for-like basis before you commit.
Yes. Surveys cover London, Essex, the Midlands and the South of England, and building regulations drawings and structural engineering are available across England.
Every project differs, and local authority timescales vary. On your free project call we'll map out a realistic timeline for design, planning and technical stages based on your property and council.
A clearer way to create a better home — from your first idea to a project builders can price properly.
Prefer to talk? Call 07925 229936, message us on WhatsApp or email Nahyan@capitalarchitecture.co.uk