Garden Annexes in Denmark Hill give you a private, self-contained space without moving home. We design and build insulated annexes with electrics, plumbing, a bathroom, kitchenette and bedroom options—finished to a premium standard.
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Denmark Hill homeowners often need extra room for family, work or independent living, without disrupting day-to-day life. A garden annexe can provide a quiet bedroom suite, a compact rental-ready studio, or a comfortable space for visiting relatives. We regularly work near Denmark Hill station and around SE5, where gardens vary from long Victorian plots to smaller courtyard spaces. Each build is planned to suit access, privacy and how you want to use the space.
The Denmark Hill area is known for Victorian terraces, Georgian houses and purpose-built flats, each with different constraints and opportunities. Period properties around Camberwell and Herne Hill often benefit from annexes that complement traditional brickwork and rooflines. Where gardens are narrower, we design smarter footprints, built-in storage and brighter glazing to keep the annexe feeling spacious. Our team is based just 20 minutes away, so site visits and aftercare are straightforward.
We handle the full journey: survey, concept design, specification, build and finishing—plus planning support where needed. Your annexe is delivered as a self-contained unit with insulation, electrics and plumbing, ready for everyday use. We keep communication clear, protect existing landscaping, and schedule works to minimise disruption. Local homeowners choose us for consistent workmanship, tidy sites and a finish that looks like it belongs in the garden.
In the London Borough of Southwark, access and parking can be a real constraint, especially near King’s College Hospital and busier streets. We plan deliveries, waste removal and working hours carefully, and we’re used to moving materials through side returns on Victorian terraces. Ground conditions and drainage vary, so we assess levels and services early to avoid surprises. The result is a garden annexe that fits the plot and complies with local expectations.
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Costs in Denmark Hill typically range from £45,000–£85,000 for a well-finished, insulated annexe with electrics and basic plumbing. Larger, fully self-contained builds with a bathroom, kitchenette, upgraded glazing, and higher-end interiors often fall between £85,000–£140,000+. Price depends on size, foundations, access, specification, and how far services need to be connected from the main house.
Most garden annexes take around 8–14 weeks on site once the design and specification are agreed. Simpler structures can be quicker, while larger annexes with a bathroom, kitchenette, and complex service runs may take longer. Timescales are affected by groundworks, access restrictions, weather, and lead times for windows, doors and bespoke joinery. We provide a clear programme before work starts.
Some garden buildings can be permitted development, but a self-contained annexe with sleeping and washing facilities often needs closer checks. In Southwark, factors like size, height, proximity to boundaries, and whether it’s used as separate accommodation can affect permission. We offer planning support, review your site constraints, and advise on the safest route—whether that’s permitted development compliance or a full planning application.
We provide a 10-year warranty covering workmanship and key structural elements of your garden annexe. This includes the build integrity, weatherproofing details and installation quality when constructed to our specification. Manufacturer warranties also apply to many components such as windows, doors, roofing systems and insulation products. We document the build and remain available for aftercare, so any issues are handled promptly and professionally.
You can choose from contemporary timber cladding, brick to match period homes, or low-maintenance composite finishes. Popular layouts include an open-plan studio with kitchenette, or a separate bedroom with a compact shower room. We can specify underfloor heating, acoustic insulation, skylights, and large sliding doors for natural light. We guide you through options based on your garden size, privacy needs and budget.
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