Garden Annexes in Streatham Hill designed as fully self-contained living spaces. Add a bedroom, bathroom and kitchenette with year-round insulation, electrics and plumbing. Fine Landscaping handles design, build and planning support from start to finish.
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A garden annexe can turn unused outdoor space into a private, self-contained home for family, guests or rental income. In SW2, we build annexes that include a bedroom, bathroom and kitchenette, finished to a premium standard. We regularly work near Streatham Hill station and around Telford Park, so we understand the local access and build constraints. Every project is tailored to your garden size, lifestyle needs and budget.
Streatham Hill’s Victorian terraces, Edwardian houses and mansion conversions often have long gardens that suit compact, well-planned annex layouts. We design to respect neighbouring boundaries, minimise overlooking and make the most of natural light. If your property has restricted side access or shared pathways, we plan deliveries and construction sequencing accordingly. Our garden annexes Streatham Hill area clients choose are built to feel like a real home, not a glorified shed.
We start with a site visit, measured survey and a clear scope covering insulation, electrics, plumbing and internal finishes. You’ll receive a detailed specification, staged programme and fixed-price proposal once the design is agreed. We coordinate trusted trades, keep the site tidy, and provide planning support where required. Homeowners choose us for consistent communication, careful workmanship and a 10-year warranty on the build.
Many streets around Christchurch Road have limited parking and narrow access, so we plan deliveries, waste removal and working hours carefully. Ground conditions can vary across Lambeth, so we assess drainage and foundations before finalising the build-up. We also design around typical boundary lines found with terraces and mansion conversions. If you’re comparing garden annexes in London Borough of Lambeth, our local experience helps avoid delays and surprises.




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Costs vary with size, specification and services, but most self-contained annexes in Streatham Hill fall between £45,000 and £120,000+. A compact studio with a shower room typically starts lower, while a larger annexe with a separate bedroom, premium glazing, built-in storage and a full kitchenette will sit higher. Groundworks, access constraints and utility connections (water, waste, electrics) also influence the final figure.
A typical garden annexe build takes around 8–14 weeks on site, depending on size, foundations and the level of internal fit-out. If you’re adding a full bathroom, kitchenette, upgraded insulation and bespoke joinery, allow extra time for first-fix and second-fix trades. Lead times for windows, doors and specialist finishes can also affect the programme. We provide a staged schedule before work begins and keep you updated throughout.
Some garden buildings can be permitted development, but a self-contained annexe intended for independent living often triggers additional planning considerations in Lambeth. Height, proximity to boundaries, use as separate accommodation and overlooking are common factors. We review your site, advise on the most practical route, and provide planning support with drawings and documentation if needed. We also check any restrictions affecting flats, mansion conversions or conservation-related constraints.
We provide a 10-year warranty covering the main build elements, including structure, weatherproofing and workmanship. Electrical and plumbing works are completed by qualified professionals and supplied with the relevant certification. If any snagging issues arise after handover, we schedule prompt remedial visits and keep clear records of materials and installations. We also explain maintenance requirements so your annexe performs well long term.
You can choose from contemporary timber cladding, composite boards, brick slips to complement period homes, or smooth rendered finishes. Internally, popular options include underfloor heating, acoustic insulation, pocket doors, skylights and built-in storage. Kitchenettes can range from compact tea stations to full units with appliances, while bathrooms can be wet rooms or traditional suites. We guide you through layout, finishes and energy-efficient upgrades to match your budget and garden.
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