Timber home extensions, renovations and new builds across Buckinghamshire and Northamptonshire
We design and build elegant timber extensions that feel as though they’ve always belonged — enhancing period cottages, farmhouses and modern homes across Buckinghamshire and Northamptonshire. From first sketches to final fit-out, our team creates warm, light-filled spaces rooted in British character, crafted with precision, and built to last.
Timber home extensions made beautifully and done right
built to last a lifetime
As artisans with 25+ years of experience, our kitchens have stood the test of time and we refuse to use cheap materials.
traditional English designs
We've mastered designing traditional Victorian, Georgian, Edwardian and old English styles for a British and European market.
Reliable From Day One
We turn up when we say we will, communicate clearly, and keep your home running smoothly throughout the build.
Low-Stress extensions
We minimise disruption, protect your space, and keep your home functioning while we work. Ensuring a smooth process, no horror stories.
made-to-measure
Unlike mass-market, factory made kitchens, all our kitchens are one-of-a-kind, personally designed and completely made to measure.
Patiently Crafted In Our Family Joinery over 8-12 weeks. Safely delivered and fitted into
After three-generations of woodworking in Poland, we started Wood Street in 2011 when we moved to England and fell in love its country-house culture of Black-Labs and Land Drovers. For 15 years we have patiently mastered Georgian, Victorian, Country-and-Farmhouse-style English kitchens. Our kitchens take time, but with good reason.
To this day we have completed 100s of made-to-measure heritage kitchens, combining the internationally renown skillset of Polish woodworking, with Poland’s economical labour and our love of English Country styles.
“Kennet Design did everything to get our home extension ready to build. From the initial survey of our property, consultation on our wants and likes to help input into the design, detailed designs, structural drawings, planning applications and all those little things you are not aware of. All this was done with a friendly and professional stance. I can not recommend them highly enough they walked us through the whole process.”
Spacious Modern Extension with Bifold Doors & Open Plan Interior
Newbury, Berkshire
This home was transformed with a modern extension with large bi-fold doors, open-plan kitchen and living areas with connections to the garden, creating bright spaces that balance functionality with family comfort.
Glazed Gable Extension and Renovation to Edwardian House in Central Oxford
Oxford
An Edwardian townhouse in central Oxford was renovated and extended with a loft conversion, modern interiors, and a bespoke garden office, blending period character with contemporary living.
Rear Home Extension and Open-Plan Interior Remodel
Newbury, Berkshire
This Newbury home was extended with a contemporary brick addition featuring full-width glazing, bi-fold doors, and open-plan interiors that flow seamlessly into the landscaped garden.
Modern House Extension, Landscape & Remodel of a 1930s House
Oxford
This 1930s home in Oxford was extended and remodelled with a bold contemporary design, featuring an open-plan kitchen and living space, vibrant interiors, and a landscaped garden that connects with the house.
Luxury Surrey New Build Developments on Janes Lane
Newbury, Berkshire
Part of a multi-plot Surrey development, this four-storey home takes advantage of a sloping site with a lower-ground floor opening onto the garden, a wide terrace above, and expansive glazing throughout.
Timber Country House Extension and Interior Renovation
Marlborough, Wiltshire
A sensitive extension and renovation in Wiltshire: blending traditional brick with a contemporary timber-clad addition to create a farmhouse that feels both timeless and modern.
Luxury Surrey New Build Developments on Janes Lane
Surrey
Part of a multi-plot Surrey development, this four-storey home takes advantage of a sloping site with a lower-ground floor opening onto the garden, a wide terrace above, and expansive glazing throughout.
Georgian Style Self-Build Home in Marlborough, Wiltshire
Newbury, Berkshire
This Georgian-style self-build home in Marlborough combines elegant symmetry and traditional red brickwork with modern open-plan living, bespoke finishes, and a garden-facing extension that creates luxury and light.
Luxury Surrey New Build Developments on Janes Lane
Surrey
Part of a multi-plot Surrey development, this four-storey home takes advantage of a sloping site with a lower-ground floor opening onto the garden, a wide terrace above, and expansive glazing throughout.
Luxury Surrey New Build Developments on Janes Lane
Surrey
Part of a multi-plot Surrey development, this four-storey home takes advantage of a sloping site with a lower-ground floor opening onto the garden, a wide terrace above, and expansive glazing throughout.
Luxury Surrey New Build Developments on Janes Lane
Surrey
Part of a multi-plot Surrey development, this four-storey home takes advantage of a sloping site with a lower-ground floor opening onto the garden, a wide terrace above, and expansive glazing throughout.
Spacious Modern Extension with Bifold Doors & Open Plan Interior
Newbury, Berkshire
This home was transformed with a modern extension with large bi-fold doors, open-plan kitchen and living areas with connections to the garden, creating bright spaces that balance functionality with family comfort.
Edwardian House Extension, Loft Conversion & Interior Renovation
Oxford
An Edwardian townhouse in central Oxford was renovated and extended with a loft conversion, modern interiors, and a bespoke garden office, blending period character with contemporary living.
Modern House Extension, Landscape & Remodel of a 1930s House
Oxford
This 1930s home in Oxford was extended and remodelled with a bold contemporary design, featuring an open-plan kitchen and living space, vibrant interiors, and a landscaped garden that connects with the house.
Rear Home Extension and Open-Plan Interior Remodel
Newbury, Berkshire
This Newbury home was extended with a contemporary brick addition featuring full-width glazing, bi-fold doors, and open-plan interiors that flow seamlessly into the landscaped garden.
Timber Country House Extension and Interior Renovation
Marlborough, Wiltshire
A sensitive extension and renovation in Wiltshire: blending traditional brick with a contemporary timber-clad addition to create a farmhouse that feels both timeless and modern.
Contemporary Transformation & Extension in Old Town, Swindon
Swindon
A sensitive extension and renovation in Wiltshire: blending traditional brick with a contemporary timber-clad addition to create a farmhouse that feels both timeless and modern.
Four times award-winners for best client satisfaction
We’ve been consistently recognised for outstanding client service. We are proud recipients of multiple Best of Houzz Service awards (2017, 2020, 2022, 2024), reflecting the trust and positive experiences of our clients across the South of England.
20+ years In the Industry • 50+ Projects Completed