Dream Spaces.
Built to Last.
From concept to turnkey delivery, we engineer bespoke residential extensions, lofts, and luxury refurbishments across London with uncompromising precision.
The Kensington Private Residence
London Architecture, Built With Exacting Standards.
Prime Builds is a full-service construction practice in London. We specialize in complex subterranean structures, rear Crittall glass extensions, Mansard loft conversions, and high-spec commercial fit-outs.
Camden Victorian Rear & Kitchen Extension
London (Camden)
Bespoke Construction Disciplines
Full House Refurbishment
Complete interior and structural renovation of London townhouses and apartments, combining heritage preservation with contemporary luxury.
Loft & Attic Conversions
Transform unused London roof spaces into master bedroom suites, light-flooded studies, or luxury en-suite sanctuaries.
Architectural Extensions
Single, double-storey, side-return, and wrap-around extensions engineered to unlock expansive open-plan London living.
Bespoke Kitchen Renovation
Custom-crafted architectural kitchens, marble waterfall islands, integrated luxury appliances, and precision joinery.
Luxury Bathrooms & Wetrooms
Spa-grade wetrooms, walk-in rainfall enclosures, bespoke vanity units, and Italian porcelain craftsmanship.
Commercial Fit-Outs & Refurbishment
High-spec commercial transformations for prime London offices, boutique retail, showrooms, and hospitality venues.
Interactive London Build Cost Calculator
Reflects parking suspension tariffs, conservation area compliance, and site access constraints.
No obligation. Site audit conducted by Prime Builds Senior Surveyors in London.
The 5-Step London Delivery Pipeline
Discovery
Complimentary on-site London audit & laser scan.
Design & Calcs
Architectural elevations, structural steels & council permissions.
Fixed Tender
Itemized schedule of works with price & program lock.
Master Build
Dedicated London site supervisor & milestone inspections.
Sign-Off
Building Control certificate & 10-year warranty handover.
Selected London Transformations
The Chelsea Townhouse Modernization
A complete four-storey Victorian townhouse transformation featuring open-plan basement engineering, Crittall glass extensions, and bespoke acoustic isolation.
Camden Townhouse Rear & Kitchen Extension
Side-return and rear wrap-around extension with black Crittall architectural doors, polished marble waterfall island, and flush courtyard integration.
Regents Park Master Suite Loft Conversion
Bespoke Mansard loft conversion creating an expansive master sanctuary with triple Velux rooflights, exposed architectural oak trusses, and luxury wetroom.
Active London Borough Operations
Our specialized site managers possess deep familiarity with local council planning officers, party wall regulations, and conservation area guidelines.
Chelsea & Kensington
42+ Projects CompletedRegents Park & Marylebone
28+ Projects CompletedCamden Town & Primrose Hill
35+ Projects CompletedMayfair & Westminster
31+ Projects CompletedHampstead & Highgate
26+ Projects CompletedIslington & Clerkenwell
29+ Projects CompletedRichmond & Barnes
22+ Projects CompletedWandsworth & Battersea
38+ Projects CompletedClient Satisfaction
David & Eleanor M.
Chelsea, London“The team at Prime Builds were a genuine pleasure to work with. From the initial structural engineer survey to the final kitchen fitting, their attention to detail and transparency on costings was faultless.”
Marcus Sterling (MD, Sterling Capital)
Mayfair, London“I wanted to pass on my sincere appreciation for the hard work and team spirit Prime Builds brought to our Mayfair headquarters. The project was completed on an aggressive timeline without disrupting our daily operations.”
Sophia & Julian K.
Regents Park, London“We were thrilled with the loft conversion. You can really tell these guys specialize in London properties and know how to work within strict council planning constraints. We have already recommended them to our neighbors.”
Camilla H.
Camden, London“Prime Builds worked seamlessly alongside our architect, providing highly qualified workmanship and adding genuine value to our property. Their on-site communication and cleanliness was exemplary.”
Ready to Build Your London Project?
Book a free feasibility survey with our senior London surveyors.