From loft conversions to new builds, we handle the full design package — planning drawings, building regulations, and structural calculations — under one roof. One team, one fee, no surprises.
Tell us about your project and we'll call you back within 24 hours.
Our team is led by professional engineers, so every scheme is designed considering project constraints, costs and timeline from day one — no costly redesigns when drawings fail at building regs.
Planning drawings, building regulations, and structural calculations bundled together. Most clients pay one price for the complete design — no separate consultants to coordinate.
Planning drawings typically in 10 working days. Because the engineer and designer are the same person, there's no back-and-forth between firms slowing your project down.
Design packages
Every package includes a structural engineer's involvement from sketch to sign-off. Pick the scope that fits your project.
Tier 1
Building regulation drawings and structural calculations for straightforward projects that don't need planning permission. Ideal for:
Tier 2
The full design package for extensions, loft conversions, and internal alterations — from first sketch to building control approval.
Tier 3
Complex projects — new builds, basements, multi-storey extensions — with full project management through RIBA stages 1–4.
How it works
Four steps from your first call to approved plans ready for your builder.
Tell us what you're planning. We'll advise on feasibility, permissions, and budget — before you spend a penny.
We visit, measure, and photograph the property. Existing plans aren't needed — we draw everything from scratch.
Design drawings, structural calculations, and planning or building regs applications — all produced in-house.
Your approved drawings go to your builder. We stay available for site queries and building control sign-off.
What our clients say
Every review from verified clients on Bark.com
"I have used this company a couple of times in the last 5 years. Andrew is very approachable and delivers quality work every time."
Renovation & flooring project
"Design A Building Ltd helped us to design and build our cozy home. The service was exemplary from start to finish."
Full home design & build
"Garage-to-kitchen conversion and full house renovation — communication was clear throughout the entire project."
Garage conversion & renovation
"I recently worked with Design a Building Ltd on a couple of construction projects. Very satisfied with the overall experience."
Multiple construction projects
"Absolutely easy and comfortable to work with. Would highly recommend."
Residential project
Book a free, no-obligation consultation. We'll call you within 24 hours.