House extensions
House extensions in Medway built around the way you live
From single-storey family rooms to two-storey additions, Napwood plans and builds house extensions across Medway and Kent that feel original to the property. Based in Wigmore, Gillingham, we start with a site visit — then talk through planning, structure and a realistic programme before anything is locked in.
Extension types that suit Medway homes
Moving house is expensive. A well-planned house extension in Medway or nearby Kent can give you the extra bedroom, kitchen-diner or living space you need without leaving the street you know.
We deliver single-storey rear and side extensions, wraparounds, side returns and carefully detailed two-storey additions. Materials, roofscape and window proportions are chosen to complement the existing home — contemporary or traditional. If the brief is mainly a larger kitchen, our kitchen extension service covers that route in more detail; if you need space upstairs without growing the footprint, a loft conversion may be the better first conversation.
- Rear and side extensions
- Wraparound and side-return layouts
- Two-storey builds
- Open-plan reconfigurations with engineered steels
- High-performance glazing and matching brickwork
Planning permission and building regulations
Many single-storey rear extensions fall under permitted development if depth, height and materials fit the rules. Corner plots, conservation areas, listed buildings, flats, larger two-storey schemes and previous additions often need a full householder application through Medway Council or the relevant Kent authority.
Building regulations still apply even when planning permission is not required. Foundations, structure, insulation, fire safety, ventilation, electrics and drainage need proper detailing and inspection. Party wall matters on terraces and semis are flagged early. We help you understand the route before drawings are locked, and we coordinate with design professionals so the scheme is buildable on a real Medway plot — not only attractive on paper.
- Permitted development vs full planning
- Building control inspections and completion certificates
- Party wall awareness on shared boundaries
- Buildable detailing for steels, drainage and access
How Napwood runs an extension
Every project starts with a no-obligation consultation at the property. We listen to your brief and budget, then coordinate design and planning with trusted professionals. You receive a clear quotation, a realistic programme and regular updates while we are on site.
Stewart and Gary bring over 55 years of combined industry experience in kitchens, carpentry and project management — so design intent does not get lost between drawings and delivery. Eligible Napwood work carries a 12-month workmanship guarantee, subject to written terms. Public liability insurance details are available on request.
- 01 Consultation on site
- 02 Design and planning support
- 03 Transparent staged quotation
- 04 Build with site supervision
- 05 Handover and guarantee paperwork
Project experience across Medway
Our case studies show the standard of finish we aim for on real local homes — including single-storey and two-storey extension journeys, open-plan kitchen work in Gillingham, and kitchen-diner projects in Rochester. Those pages use photographs from Stewart and Gary’s combined project experience; where a study is illustrative of a typical brief, that is stated on the page.
Ask to talk through a project similar to yours in Wigmore, Rainham, Gillingham, Chatham or Rochester. We will not invent accreditations or claim awards we do not hold — the work and the programme should speak for themselves.
Neighbours, disruption and living on site
Most homeowners stay in the house during a rear or side extension, often with a temporary kitchen arrangement. We protect remaining rooms, keep the site as tidy as a building site can be, and plan noisy or structural stages so you know what is coming.
Good neighbour communication matters as much as scaffolding. Access for materials on Medway terraces and parking on estate roads is part of the planning conversation, not an afterthought on day one.
FAQs
Frequently asked questions
How much does a house extension cost in Medway?
Napwood does not publish a generic build rate. Costs depend on project-specific factors including size, ground conditions, structural requirements, glazing and finish. The extension-cost guide identifies fees that can be checked separately. Actual construction pricing requires a project-specific quotation after a site visit.
Should I extend or move?
If you like your location, an extension is often the more cost-effective and less stressful route. We can help you weigh space gained against budget and planning constraints.
Should I extend or refurbish instead?
Extend when you need more floor area or a new structural volume. Refurbish when the footprint is already right but kitchens, bathrooms, plaster, joinery or finishes need a coordinated refresh. Many Medway projects combine both — for example a rear extension plus a ground-floor refurbishment — which we plan as one programme rather than two disconnected jobs.
Do you work with architects?
Yes. We collaborate with trusted architectural professionals and can help move projects from concept through to compliant drawings.
Are you insured?
Yes. Napwood Construction Ltd holds public liability insurance; details are available on request. Eligible Napwood work carries a 12-month workmanship guarantee, subject to written terms.
Which areas of Kent do you cover?
Wigmore is our operating base. We regularly work across Gillingham, Rainham, Chatham, Rochester and the wider Medway area, and take on suitable projects further into Kent where the brief fits how we work.
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Ready to discuss your project? Call us or request a quote today.
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