
Bespoke extensions, refurbishments & new builds
We cover the Wirral Peninsula and Chester from our head office in Heswall — designing, extending and refurbishing homes to create the beautiful open-plan living spaces families actually want to live in.



Design & Build
From first sketch to final finish, under one roof
Design & build is what we do best. We offer a full turnkey service — taking your project from the very first architect’s drawing right through to the final coat of paint — with one team, one plan and one point of contact the whole way through.
Because the same people design your space and then build it, nothing gets lost in translation. The drawings are grounded in what’s actually buildable and affordable, the trades understand the intent behind every detail, and there’s no finger-pointing between an architect and a separate contractor when questions come up on site.
The result is a smoother build, a tighter budget and — most importantly — a finish that lives up to the vision you started with.
How we work
A single, joined-up process from design to handover
Every project runs through the same four stages. Keeping design and build in-house means each stage flows naturally into the next, with the same team carrying your project — and your intentions — the whole way.
Design
We start by understanding how you want to live, then develop drawings that make the most of your space and light. Every layout is tested against real family life — and against a realistic budget — long before we break ground.
Plan & cost
Before any work begins, we cost the whole project properly and agree a clear, transparent budget. We handle planning, building regs and scheduling so you know exactly what’s happening, when, and what it will cost.
Build
Paul is hands-on and on site, keeping every trade flowing smoothly to the next so the build stays on track. Our long-trusted contractors take real pride in their work, and it shows in how tidily and considerately each project runs.
Finish & handover
The final finish is where a build is really judged, and it’s where we care most. We see the details through to the last coat of paint and hand back a space that’s ready to move straight into and enjoy.
About OPB
Your dream space, built by one team
With over 30 years’ experience in the building industry, founder Paul Bennett set up OPB to offer genuine open-plan design & build solutions to homeowners across the Wirral and Chester — whether that’s a full structural renovation, a new build, or a rear kitchen extension.
We provide a full project-management service throughout, so you always have one number to call and one team accountable for the result. It’s an approach built to take the stress out of building work — and to make the whole thing something you can genuinely enjoy.
“The whole team made what could have been a stressful process genuinely enjoyable — we now have exactly the family kitchen we always wanted.
Get in touch
Request a callback
Tell us a little about your project and we’ll be in touch to arrange a design consultation — no obligation.




