Add flexible living space without moving with Garden Annexes in Woolwich. We design and build self-contained garden rooms with insulation, electrics, plumbing, a kitchenette and bathroom—ready to use year-round.
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A well-built garden annexe gives you a private, self-contained space for family, guests or rental use. In Woolwich SE18, we create annexes that feel like a small home—complete with bedroom, bathroom and kitchenette. Whether you’re near Royal Arsenal or closer to Woolwich Town Centre, we tailor the layout to your garden and lifestyle. Expect a premium finish, built for everyday comfort.
Woolwich has a mix of Victorian terraces, converted arsenal buildings and modern apartments, often with compact or cleverly shaped gardens. We’re used to working with tight access routes, shared pathways and boundary constraints common around Charlton and Plumstead. Our designs maximise usable floor area while keeping the annexe light, warm and quiet. The result is a space that complements the property rather than looking like an add-on.
Fine Landscaping manages the full build: site survey, design, groundworks, insulation, electrics and plumbing, then final fit-out. You’ll get clear specifications, tidy working practices and a build schedule you can rely on. We also provide planning support and coordinate with building control where required. Homeowners choose us for consistent workmanship and a finish that lasts.
Across the garden annexes Woolwich area, access can be restricted by narrow side returns, parked cars and controlled parking zones. We plan deliveries and waste removal to reduce disruption, especially near the Royal Arsenal and the river routes by Woolwich Ferry. Local ground conditions can vary, so we specify foundations and drainage after a proper survey. For garden annexes in Royal Borough of Greenwich, we also factor in conservation considerations and neighbour proximity from day one.
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Costs for a self-contained garden annexe in Woolwich typically start around £45,000–£70,000 for a compact, well-insulated build with electrics. With a bathroom, kitchenette, higher-end finishes, and more complex plumbing or foundations, budgets often fall in the £70,000–£120,000+ range. Price is affected by size, specification, access, groundworks, and how far services (water, waste, power) must be routed.
Most builds take around 8–14 weeks from start on site to completion, depending on size and specification. Groundworks and service connections can add time, especially if drainage runs are long or access is limited. Design, planning support and building control stages may take several weeks before work begins. Weather, bespoke joinery, and specialist finishes can also extend the programme.
Some garden buildings can be permitted development, but a self-contained annexe with sleeping and bathroom facilities can trigger extra rules. In the Royal Borough of Greenwich, restrictions may apply due to conservation areas, listed buildings, or limits on height, footprint and positioning. We provide planning support, check constraints for your address, and advise whether a lawful development certificate or full planning application is the safest route.
We provide a 10-year warranty covering workmanship and key structural elements of the build, giving you long-term confidence. This includes the integrity of the main construction, weatherproofing details and installation quality where specified. Manufacturer warranties also apply to many components such as insulation products, windows/doors and electrical fittings. We’ll explain what’s covered in writing and how to maintain the annexe for best performance.
You can choose from contemporary or traditional looks, including timber or composite cladding, brick slips, rendered finishes, and a range of roof types. Inside, popular options include underfloor heating, acoustic insulation, fitted storage, and compact kitchenette layouts. Bathroom choices range from space-saving shower rooms to premium finishes. We guide you through options to match your budget, garden size and the style of your home.
Get your free, no-obligation quote today.