LEX
House Extensions & Renovation Experts in London
LEX - House Extensions & Renovation Experts in London
Welcome to London Extensions Specialist (LEX) – your trusted local partner for premium quality house extensions, loft conversions, single and double-storey extensions, and full-scale home renovations across London.
With over 15 years of operational experience and a team boasting more than 50 years of combined industry expertise, we offer a seamless, end-to-end design and build service that transforms ambitious ideas into beautifully executed, long-lasting spaces.
Whether you're planning a bespoke kitchen extension, a multi-level expansion, or a complete new build, our process ensures excellence from concept and planning through to construction and final delivery — with meticulous attention to detail at every step.
With a portfolio of over 50 successfully delivered residential and commercial projects, LEX has built a reputation for precision, quality workmanship, and unwavering client trust.
If you're envisioning your dream home and looking for a reliable builder with a proven track record, LEX is here to bring your vision to life.
LEX Portfolio
LEX Services & Process
Precision Building & Property Development - Crafted for London Living
At London Extensions Specialist (LEX), we focus exclusively on high-quality construction and property development. With a commitment to structural excellence, compliance and seamless execution, we deliver exceptional build outcomes for residential, commercial and investment projects across Greater London.
Residential Extensions & Conversions
We bring plans to life with meticulous craftsmanship and efficient site management:
- Single-Storey Extensions - Spacious, light-filled ground floor expansions.
- Double-Storey Extensions - Smart vertical builds for growing households.
- Loft Conversions - Turn underutilized attic spaces into livable rooms.
- Basement Conversions - Expertly executed lower-ground transformations.
New Build & Property Development
From foundation to final finishes, we build long-term value in mind:
- New Build Homes - Bespoke residential builds tailored to architectural plans.
- Flat Conversions / HMOs - Space maximizing layout builds to meet modern regulations.
Commercial & Hospitality Projects
We construct dynamic spaces that support operational success:
- Retail Interiors - Shopfit and layout construction for high-traffic environments.
- Restaurants & Hospitality units - Fit-cuts aligned with commercial and kitchen standards.
Our Featured Works
Why Choose Us?
LEX works at bringing your visions to life
Proven Track Record
With over 15 years in operation and 50+ completed residential and commercial projects, LEX is trusted by homeowners and investors alike across Greater London.
Specialist Build-Only Expertise
Unlike design-led firms, we focus solely on construction and development. Our skilled site teams deliver exceptional build quality—from extensions and loft conversions to full-scale new builds.
Transparent, End-to-End Delivery
We manage every stage of the building process with precision from groundworks to final handover—ensuring strict timelines, clear communication, and zero compromise on quality.
Fully Compliant & Regulated
All of our projects meet the latest UK Building Regulations and planning requirements. We also work seamlessly with architects, planning consultants, and surveyors to ensure smooth delivery.
Client-First Approach
Our success is built on long-term client relationships. We prioritize professionalism, cleanliness on site, and meticulous attention to detail earning consistent referrals and repeat clients.