Home Extension Design in Oxfordshire and Buckinghamshire
Residential Alterations and Extensions by Chartered Architectural Technologists
At KW Architectural, we support homeowners with home extension design, residential alterations and renovation drawings across Buckinghamshire, Oxfordshire and the surrounding counties. Whether you are looking to create more living space, improve the layout of your home or add a carefully designed extension, we prepare clear design and technical drawing packages to help move the project forward.
Our work covers a wide range of residential properties, from countryside cottages and farmhouses to modern family homes and larger private residences. Each project is developed around the existing building, the site context, planning requirements and the way the home needs to work in practice.
As Chartered Architectural Technologists, our design services focus on both appearance and buildability. We can help with early design ideas, measured surveys, planning drawings, building regulations drawings and detailed construction information for home extensions, internal alterations and reconfigured living spaces.
For clients planning a larger residential project, we also support self-build homes and new build residential projects, helping develop clear proposals from early ideas through to planning and technical design.
Whether you are planning a new open-plan kitchen, a light-filled garden room, a two-storey extension or a more practical internal layout, KW Architectural can help shape the design, prepare the drawings and support a clearer route through planning, Building Control and construction.
Planning Drawings for Home Extensions
Many extension and alteration projects need planning drawings or supporting information before work can move forward. KW Architectural reviews the existing property, planning context and design brief before preparing drawings that clearly explain the proposed changes.
We help clients understand what may be acceptable from a planning point of view, especially where properties are in villages, conservation areas, sensitive settings or close to neighbouring homes.
Building Regulations Drawings and Technical Design
After planning, most residential projects need building regulations drawings and technical details. These drawings help Building Control, contractors and other professionals understand how the design should be built.
Our technical background helps reduce uncertainty before construction starts, with drawing packages developed to support contractor pricing, compliance and practical delivery on site.



