Business Details
We founded Luke Williamson Architect in 2004 as a sole practitioner and incorporated the practice as a Limited Company in 2011, giving us over two decades of continuous architectural experience. Our practice specialises exclusively in residential architecture, delivering home extensions, loft conversions, newbuild houses and barn conversions with a focus on quality and detail. Based in Bicester, Oxfordshire, we primarily serve clients across Oxfordshire, Northamptonshire and Buckinghamshire, including towns such as Oxford, Thame, Aylesbury, Brackley and Buckingham. We hold full registration with the Architects Registration Board (ARB) and are chartered members of the Royal Institute of British Architects (RIBA), demonstrating our adherence to the highest professional standards. As a member of the Federation of Small Businesses, we actively support the interests of small enterprises while maintaining the rigour expected of larger practices. Our approach combines traditional architectural expertise with cuttingedge technology; we utilise the latest 3Dimensional computer software to produce detailed visualisations and walkthroughs as a standard part of every project.
From the initial consultation through to project completion, we provide fixedfee quotations for Work Stages A, B and C, ensuring transparency and predictable budgeting for our clients. When required, we assume the role of Principal Designer under Building Regulations and CDM, coordinating health and safety responsibilities throughout design and construction phases. Our technical design services include preparing schedules of works, advising on appropriate building contracts, identifying the extent of contractorled design and producing tender documentation. During construction we conduct regular site visits to certify that work proceeds in accordance with the building contract and to validate payments for completed work. Above all, we are committed to solving our clients' spatial challenges with creative, functional designs while delivering a friendly, experienced service that prioritises their satisfaction.
From the initial consultation through to project completion, we provide fixedfee quotations for Work Stages A, B and C, ensuring transparency and predictable budgeting for our clients. When required, we assume the role of Principal Designer under Building Regulations and CDM, coordinating health and safety responsibilities throughout design and construction phases. Our technical design services include preparing schedules of works, advising on appropriate building contracts, identifying the extent of contractorled design and producing tender documentation. During construction we conduct regular site visits to certify that work proceeds in accordance with the building contract and to validate payments for completed work. Above all, we are committed to solving our clients' spatial challenges with creative, functional designs while delivering a friendly, experienced service that prioritises their satisfaction.
Highlights and features
- We have over 20 years of residential architectural experience.
- We are RIBA chartered and ARB registered architects.
- We provide fixedfee quotes for Stages A, B and C.
- We include 3D visualisations and walkthroughs on every project.
- We serve Oxfordshire, Northamptonshire and Buckinghamshire with local expertise.
Services
Home Extensions
Home extensions provide additional living space by extending the footprint of an existing house, tailored to the client's lifestyle and planning constraints. We manage the full process from initial design and planning applications to detailed construction drawings and on-site supervision. Clients benefit from increased property value, improved functionality and a seamless, stress-free experience delivered to RIBA-registered standards.
Loft Conversions
Loft conversions transform underused attic space into functional rooms such as bedrooms, offices or play areas, subject to structural and headroom assessments. We handle design, structural calculations, building regulations approval and production of detailed construction drawings. Clients gain valuable extra space without extending the building footprint, enhancing home usability and market appeal while meeting all regulatory standards.
New Build Homes
New build homes involve designing and constructing a completely independent dwelling from the ground up, tailored to the client's specifications and site conditions. We provide full architectural services, including site analysis, planning consent, detailed design and coordination with builders throughout construction. Clients receive a bespoke, energy-efficient home that meets modern standards, maximises comfort and delivers long-term value.
Barn Conversions
Barn conversions repurpose historic agricultural buildings into distinctive residential homes, preserving original features while introducing modern living standards. We manage listed building consents, structural assessments, thermal upgrades and the creation of sympathetic designs that respect the building's character. Clients obtain a unique, character-rich home with reduced environmental impact, enhanced aesthetic appeal and potential for increased property value.
3D visualisations
We create detailed 3D visualisations and walkthroughs using the latest computer software to illustrate design concepts clearly and realistically. These visual tools help clients understand spatial relationships, material finishes and lighting effects before any construction begins. Clients benefit from improved decision-making, reduced design revisions and greater confidence that the final outcome matches their expectations.
