Garden Annexes in Kingston upon Thames designed for comfortable, independent living. We build fully insulated, self-contained spaces with electrics, plumbing, kitchenette, bathroom and bedroom layouts. From first survey to final sign-off, everything is managed for you.
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A garden annexe is a smart way to add independent space without moving, whether it’s for family, guests or flexible working. In Kingston upon Thames, we create self-contained annexes with a kitchenette, bathroom and bedroom zone, built for all-season comfort. We regularly work across KT1 and KT2, with projects near Kingston Bridge and the Bentall Centre. Every build is designed to suit your garden, privacy needs and access constraints.
Local homes range from Victorian villas and Edwardian houses to modern waterfront apartments, each with different plot shapes and boundary considerations. In Surbiton and New Malden, gardens can be long and narrow, so we plan efficient footprints and light-filled layouts. Riverside settings can call for extra attention to drainage and insulation performance. Our designs balance usable internal space with a clean external finish that complements the property.
We start with a site visit, measured survey and a clear specification, then confirm foundations, services runs and build programme. Your annexe includes insulation, electrics and plumbing installed to current standards, with tidy handover and certification. We coordinate trades carefully to keep disruption low and maintain safe access throughout. Homeowners choose us for transparent communication, dependable timelines and workmanship backed by a long warranty.
Across the Royal Borough of Kingston upon Thames, access can be restricted by side passages, shared drives and controlled parking, so we plan deliveries and waste removal carefully. Near busy routes around Kingston Bridge, we schedule works to minimise disruption and keep neighbours informed. Soil conditions vary, so we specify suitable foundations and drainage details after inspection. Whether it’s a period house or a newer riverside apartment garden, we tailor the annexe footprint and finish to match.
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Costs vary with size, specification and service connections, but most garden annexes in Kingston upon Thames fall between £45,000 and £120,000+. A compact insulated studio with electrics may start lower, while a fully self-contained annexe with kitchenette, bathroom, bedroom zone, higher-end finishes and complex drainage typically sits mid to upper range. Groundworks, access, and the distance to existing water and electrics can also affect the budget.
A typical build takes around 8–16 weeks from start on site, depending on complexity and weather. Simple footprints with straightforward service runs can be quicker, while larger annexes with bathroom plumbing, bespoke joinery and multiple rooms take longer. Timescales are also influenced by access for materials, groundwork requirements, and lead times for windows, doors and sanitaryware. We provide a staged programme so you can plan around the works.
Some garden buildings can be permitted development, but a self-contained annexe (especially with a bathroom and kitchenette) may trigger planning considerations. Rules can also change based on height, proximity to boundaries, listed buildings, conservation areas and how the space will be used. We review your site, advise on the likely route, and provide planning support where needed, including drawings and information for submissions to the council.
We provide a 10-year warranty covering workmanship and the structural integrity of the build, giving you long-term peace of mind. This includes key elements such as the main structure, external envelope and installation quality where we’ve supplied and fitted. Manufacturer warranties apply separately to items like windows, doors, electrics components and sanitaryware. We also complete a thorough handover and address any snags promptly after completion.
You can choose from contemporary or traditional looks, including timber cladding, composite boards, brick slips or rendered finishes. Internally, we can fit durable flooring, built-in storage, and a kitchenette with compact appliances, plus bathroom suites from practical to premium. Layout options include open-plan studios, separated bedroom areas, or accessible designs. We guide you through choices based on budget, maintenance preferences, daylight, privacy and how you’ll use the space.
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