Transform your home with expertly crafted home extensions in Northampton.
With over 20 years of experience serving homeowners in Northampton, we understand the unique character of local properties, from Victorian terraces in Abington to modern homes in Duston.
Perfect for open-plan kitchen diners. Recent projects in Kingsthorpe have added 25-40m² of living space, increasing property values by £80,000+.
Maximise space in growing families. Popular in East Hunsbury, where we've helped clients add bedrooms and home offices without compromising garden space.
Ideal for narrow Northampton terraces. Transform unused alleyways into bright, functional rooms, our Weston Favell project created a 15m² utility and WC.
Combine rear and side extensions for maximum impact. A recent Billing Road installation delivered a 55m² kitchen-living area with bi-fold doors.
Many of our single storey rear extensions in Northampton are designed with integrated kitchen fitters in mind, creating light-filled, multifunctional spaces. We handle everything from structural steelwork to custom cabinetry installation, ensuring your new kitchen extension flows effortlessly into the living area.
Explore our full range of bespoke kitchen fitting services for premium appliances, quartz worktops, and tailored layouts that maximise every inch.
Free Consultation – Site visit within 48 hours
Design & Planning – Architectural drawings and planning submission
Build Phase – 8-16 weeks depending on extension size
Completion – Building Control sign-off and handover
| Extension Type | Typical Size | Starting Price | Time Frame |
|---|---|---|---|
| Single Storey Rear | 20m² | £38,000 | 8–12 weeks |
| Two-Storey | 40m² | £72,000 | 14–20 weeks |
| Side Return | 12m² | £28,000 | 6–8 weeks |
| Wrap-Around | 50m² | £85,000 | 18–26 weeks |
*Prices are estimates and excludes VAT. Includes foundations, steelwork, and basic finishes.
Most home extensions in Northampton fall under permitted development rights, allowing work without full planning permission if they comply with national rules (e.g., size limits like 3m depth for single-storey rears). However, these rights don't apply in sensitive areas like conservation zones (e.g., Derngate or the town centre), listed buildings, or where Article 4 Directions remove them, requiring full planning approval instead.
At DH & Sons, we navigate West Northamptonshire Council's processes to ensure compliance and minimise delays.
Established in 2022 but backed by over 20 years of family experience in Northampton construction, DH & Sons Ltd specialises in high quality home extensions that exceed expectations. Led by Dan, our team of local craftsmen (all within 15 miles) delivers 5 star rated projects clients rave: "DH & Sons transformed our garden and home, professional, hardworking, and meticulous!". We're not just builders; we're partners in creating your dream home.
Full Design & Build Service: From sketches to handover—no subcontractors, one fixed price.
Local Expertise: We know Northampton's clay soils and council quirks inside out.
Eco & Transparent: Sustainable materials, no hidden fees, staged payments.
Proven Track Record: 100+ projects completed; 96% on-time delivery.
Seamless Kitchen Integration: As Northampton's trusted kitchen fitters, we design extensions with built-in kitchen upgrades, from bespoke storage solutions to energy efficient appliances. This one-stop approach means no mismatched finishes or extra trades, discover our dedicated kitchen services for hassle-free transformations.
"Dan and his team at DH & Sons turned our cramped terrace into a stunning open plan haven. Exceeded every expectation, highly recommend!"
"Prompt, quality work from start to finish. Our extension feels like it was always part of the house"
Whether you're planning a compact eco-friendly addition or a full open plan transformation, our team handles every detail, from design to drainage (including new systems for seamless integration).
Get your free site survey and quote today — call 07488 350452 (Mon–Fri, 8:00am–5:00pm)