House extensions and renovations in Buckingham and Winslow
We build house extensions and renovate homes in Buckingham, Winslow and the surrounding North Buckinghamshire villages. From a kitchen with room to cook and spend time together to a more practical layout, we create space that improves the way you live.
Our own specialist team carries out the work, with us managing your project from the first conversation through to completion. You have a consistent point of contact, regular updates and costs agreed before work goes ahead.
20+ years of hands on construction experience · NIC certified · 12-month workmanship guarantee
Extensions and renovations that enhance your home

House extensions
We build single and double storey extensions, side returns and wraparound extensions that give you more room where you need it. A larger living area or an extra bedroom can make your home work for the years ahead, while keeping you in the place you want to live.

House renovations
We renovate homes to improve how rooms connect and how you use them. From structural alterations to a wider house renovation, we manage the work through to the finishing details, bringing the changes together as one coordinated project.

Kitchen extensions and renovations
We create kitchens with room for cooking, everyday meals and time together. A kitchen extension can bring dining and living space into the same room, while renovating your existing kitchen can make better use of the space you already have.

Quality you can rely on
We bring the same care to the structure of your home and the details you see every day. Our established team takes the work through to the finishing stages, with us overseeing quality and addressing snagging as part of handover. Our work is backed by a 12-month workmanship guarantee.
Clear costs and agreed changes
We talk through the proposed work and its cost, then confirm the details by email for your approval. You have a clear record of what is included before work begins.
Changes follow the same process. We explain the work and any cost involved, confirm it by email and get your sign-off before carrying it out. That keeps you in control of decisions about your home and budget.

One point of contact from start to finish
We keep you up to date with progress, what happens next and any decisions that need your attention. Your consistent point of contact manages the build and coordinates our team, so you can ask questions and get clear answers throughout the project.
Recent projects
See how our extensions and renovations have changed the way our clients use their homes.

Nash/Holywel House, Buckinghamshire
An internal renovation with a new kitchen and underfloor heating.

The Limes, Stony Stratford
An internal renovation with bifold doors, a new kitchen, bathroom and utility room.

Garden Room, Brogborough
A large garden room with PVC sliding doors, thermal treated timber and air conditioning.
How it works
- Tell us about your project. Share your plans and any drawings you have. We will review your ideas, discuss what you want to achieve and explain the most useful next step.
- Agree the work and costs. Once the design and scope are clear, we explain the proposed work and provide a written quotation. We talk through the details with you and confirm what is agreed before construction begins.
- Build and handover. With the necessary approvals in place, we manage construction and keep you informed as the build progresses. We coordinate our team through the finishing work and snagging, following your project through to completion.
About DWG Construction
We established DWG Construction in 2022, drawing on our founder David Watson-Green’s experience in construction since 2002.
Our own team brings together specialists chosen for their expertise and the quality of their work. We have worked together for years, so the people working on your home understand one another’s roles and share the same standards. You have a complete team behind your project, with us managing the work throughout.

Builders serving Buckingham and Winslow
Our North Bucks service area covers Buckingham and Winslow, together with Whitchurch, Padbury, Maids Moreton, Stowe and Tingewick. We build house extensions and renovate existing homes across these towns and villages.
Areas covered
- Buckingham
- Winslow
- Whitchurch
- Padbury
- Maids Moreton
- Stowe
- Tingewick
Your questions answered
If your question is not covered here, ask us directly.
Ask us directly 07928 100884Do I need planning permission for an extension in Buckingham or Winslow?
Some extensions fall within permitted development rights, while others need planning permission. The requirements depend on your property, the design and any restrictions that apply. We can check the position with your designer and with Buckinghamshire Council before work starts. Building regulations approval is a separate consideration.
How much will my house extension cost?
We price each project around the drawings, specification and scope of work. The scale of the extension, structural changes and finishes all affect the cost. We explain what is included and confirm the agreed details by email for your sign-off.
How long will the build take?
The timescale depends on the scale and complexity of the work, with time also needed for design and approvals. We will discuss the programme with you and keep you updated as the build progresses.
Can we stay in our home during the work?
That depends on the work and whether safe access and essential facilities can be maintained. We will talk through what to expect when planning your project, including whether temporary accommodation may be needed for part of the build.
Tell us about your plans
Tell us about your plans for an extension or renovation in Buckingham, Winslow or one of the surrounding villages. We will review your ideas and any drawings you have, and discuss the most useful next step.









