Business Details
23 Years
experience
Luxury Basement Conversions & Heritage Building Renovations
Established over two decades ago, Oxford & London Building Consultancy (OLBC) has built a reputation for delivering exceptional residential projects across London. Specialising in complex basement conversions, major renovations, and conservation of listed buildings, we combine architectural expertise with hands-on construction excellence. Our boutique approach ensures we manage a limited number of projects simultaneously, allowing meticulous attention to detail and direct client engagement. With in-house teams spanning design, architecture, conservation, and structural engineering, we offer a fully integrated turn-key service. Our expertise extends to navigating planning permissions, listed building consents, and technical challenges inherent in period properties, ensuring seamless project delivery.OLBC prides itself on employing time-served professionals who uphold traditional craftsmanship while embracing modern methodologies. Clients benefit from our 100% success rate in securing planning approvals and our commitment to transparency, with fixed pricing structures and no hidden costs. Our portfolio showcases bespoke solutions tailored to London's architectural heritage, from subterranean living spaces to energy-efficient renovations. Recognised by peers and clients alike, we maintain professional indemnity insurance up to 1m, underscoring our accountability. With a focus on enhancing both property value and client experience, OLBC remains a trusted partner for discerning homeowners seeking excellence in residential construction.
Services
Basement conversions
Listed building renovations
Design and build
Project management
Heritage conservation
Structural engineering
Planning applications
Interior design
Wine cellar design
Swimming pool integration
Details
- Year established: 2003
Highlights and features
- We have over 20 years of experience in London's residential construction sector
- Our in-house specialists handle all aspects from design to completion
- 100% success rate in securing planning and listed building consents
- We limit projects to five at any time for meticulous attention
- Professional indemnity insurance up to 1 million for client protection
What people say
Beyond expectations
Enthusiasm for projects
Few snags reported
Help after moving
Perfect family homes
Services
Basement conversions
Specialist basement conversions creating luxury living spaces while maintaining structural integrity. Our team delivers waterproofing, structural engineering, and bespoke interior design for wine cellars, swimming pools, and multi-functional areas. Projects incorporate advanced cavity membrane systems and energy-efficient solutions tailored to London's geological conditions.
Listed building renovations
Comprehensive conservation of historic properties requiring listed building consents. Our expertise covers lime mortar matching, cornice restoration, and sensitive material analysis for period properties across Kensington, Chelsea, and Wimbledon. We secure necessary permissions while preserving architectural authenticity.
Design and build
Integrated architectural and construction service managing projects from concept to completion. Our in-house teams handle planning applications, structural engineering, and interior design, ensuring seamless execution for complex renovations and new builds across London's prime residential areas.
Project management
Dedicated project management for basement excavations and renovations, including party wall agreements, building control inspections, and timeline coordination. We limit projects to five simultaneously to ensure meticulous oversight and client communication throughout the 24-36 week process.
Structural engineering
Specialist structural solutions for challenging basement excavations in waterlogged gravels or conservation areas. Our engineers deliver reinforced concrete structures and waterproofing systems, with expertise in Bedford Park Conservation Area and other sensitive London locations.
Questions
Will my new basement be waterproof?
We use advanced plastic cavity membrane systems and sump pumps, combined with thorough ground investigations, to guarantee dry, durable basements tailored to your property's conditions.
Do London basement conversions need planning permission?
Most require planning consent, particularly for listed buildings or external modifications. Our 100% success rate in securing approvals ensures compliance with London borough regulations.
How long does a typical basement conversion take?
Projects typically take 24-36 weeks depending on complexity. Our focused approach managing five projects at a time ensures timely delivery without compromising quality.
What are the benefits of a basement conversion?
Transform underused spaces into luxury living areas while increasing property value by 600-5,000 per square foot, without disruptive extensions or planning constraints.
What insurance coverage do you provide?
We carry comprehensive coverage including £10m employers liability, £5m public liability, and £1m professional indemnity insurance specifically covering basement excavation work.
Can you work with existing architectural teams?
We offer flexible collaboration, either managing full turnkey projects or working with client-appointed professionals through our negotiated route, adapting our approach to individual project requirements.
