Business Details
24 Years
experience
Luxury Basement Conversions & Historic Building Renovations in London
Established over two decades ago, Oxford & London Building Consultancy (OLBC) has built a reputation for excellence in luxury basement conversions, historic building renovations, and bespoke construction projects across London. Our expertise lies in managing complex undertakings, from securing planning and listed building consents to delivering turn-key solutions tailored to private clients' exacting standards. With a dedicated team of in-house specialistsincluding architects, conservation experts, and structural engineerswe prioritise quality, precision, and client collaboration.By limiting our workload to a select number of projects at any given time, we ensure meticulous attention to detail and foster enduring relationships with homeowners. Our commitment to craftsmanship, combined with advanced technical knowledge, enables us to transform period properties and modern residences into exceptional living spaces that harmonise heritage with contemporary functionality.
Services
Basement Conversions
Listed Building Renovations
Structural Engineering
Design & Build
Project Management
Details
- Year established: 2002
Highlights and features
- Over 20 years of experience in London's luxury construction sector
- 100% success rate in securing planning and listed building consents
- In-house specialists for architectural design, conservation, and structural engineering
- Professional indemnity insurance up to 1m for client protection
- Client-centric approach with a focus on bespoke, turn-key solutions
What people say
Beyond expectations
Few snags on large project
Help and support after moving in
Perfect family home
Stunning results
Services
Basement Conversions
We specialise in transforming underutilised basements into luxurious living spaces, combining advanced waterproofing techniques with bespoke design. Our process includes structural engineering, planning permissions, and interior fit-out to create functional areas like home cinemas, wine cellars, or swimming pools. With over 20 years of experience, we ensure seamless integration with your property's character while maximising space and value.
Listed Building Renovations
Our expertise in historic properties includes securing listed building consents and employing traditional craftsmanship for sensitive repairs. We address challenges like lime mortar matching, cornice restoration, and material analysis to preserve architectural integrity. Projects often involve full structural upgrades while maintaining period features, ensuring compliance with conservation regulations across London's heritage zones.
Structural Engineering
Our in-house structural teams deliver complex underground projects, including basement excavations and reinforced foundations. Utilising advanced techniques for waterlogged sites and party wall agreements, we ensure stability and safety. This service forms the backbone of our turn-key approach, enabling seamless transitions from design to execution for challenging terrains and historic structures.
Design & Build
We offer end-to-end project management from architectural design to final fit-out, tailored to individual client needs. This integrated approach covers planning permissions, interior design, and construction, ensuring cohesive results. By managing all aspects internally, we maintain quality control and streamline timelines for both modern and period properties.
Project Management
Our team oversees every phase of construction, acting as a single point of contact for homeowners. Services include coordinating trades, managing timelines, and ensuring compliance with building regulations. We provide regular progress updates and handle logistical challenges, allowing clients to focus on design decisions while we maintain operational efficiency and adherence to budgets.
Questions
Will my new basement be waterproof?
Yes. We use advanced plastic cavity membrane systems and sump pumps to channel moisture, ensuring dry, durable basements. Ground investigations tailor solutions to your property's conditions.
Do London basement conversions require planning permission?
Most projects need planning consent, especially for listed buildings or external modifications. Our 100% success rate in securing approvals ensures regulatory compliance across London boroughs.
How long does a typical basement conversion take?
Projects typically last 24–36 weeks, depending on complexity. Our focused approach and limited project load ensure timely delivery without compromising quality.
What are the benefits of a basement conversion?
Transform underused spaces into functional areas like home cinemas or extra bedrooms, boosting property value by up to £5,000 per square foot while avoiding disruptive extensions.
Can OLBC handle listed building renovations?
Yes. We specialise in sensitive restoration work, including listed building consent applications, material matching, and traditional craftsmanship for period properties.
What insurance coverage does OLBC provide?
We carry £10m employers' liability, £5m public liability, and £1m professional indemnity insurance, with bespoke coverage for basement excavation works.
Reviews (6)
Pin P.
Dec 19, 2020
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A very straight-dealing company to work with. Always felt they wanted to help us get the most out of the work and were extremely pleased with the results.
Miss Crystaltips
Oct 20, 2020
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Very helpful advice throughout and great knowledge of planning system. We are very happy with the result and would definitely recommend their services.
Roger Caley
Oct 12, 2020
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We were very pleased with the service we received from OLBC from start to finish. We would have no hesitation recommending this company to anyone.
Cedric Lamaignere
Sep 24, 2020
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I would like to thank OLBC for their work. Excellent service, professional and friendly, would definitely recommend them.
Richard Crewe
Jul 09, 2020
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I wouldnt use these guys, shambolic at best! And probably all their good reviews are from friends! Untrustworthy and dishonest. Left me and my neighbour high and dry when they didnt complete their works and just left site.
Milly Hill
May 14, 2020
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Great job redesigning the internal layouts of my property, it works much better now. I wouldnt hesitate to recommend them.
