Add flexible living space without moving with Garden Annexes in Raynes Park. We design and build self-contained annexes with a bedroom, bathroom and kitchenette, fully insulated and connected.
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A garden annexe can give you a quiet home office, a private guest suite, or a comfortable space for older relatives—right in your own garden. We build self-contained units with a bedroom, bathroom and kitchenette, finished to a high standard. Homeowners around Raynes Park station and SW20 often choose an annexe to keep family close while maintaining independence. Fine Landscaping manages the build from first sketch to final handover.
Raynes Park’s mix of 1930s semis, Victorian terraces and Edwardian houses often comes with long rear gardens and side access, ideal for a well-placed annexe. We’re used to working around mature planting, shared boundaries and existing patios common in Wimbledon and New Malden. Whether you want a compact studio or a larger layout with separate zones, we tailor the footprint to your plot. Our designs suit both period homes and more modern extensions.
You’ll get a clear scope, itemised options and a realistic programme before work begins. We handle groundworks, insulation, electrics and plumbing, then complete the interior fit-out for a genuinely usable space all year round. Our team keeps sites tidy, protects lawns and paving, and coordinates deliveries to minimise disruption. Local homeowners choose us for straightforward communication, quality finishes and dependable aftercare.
Across the London Borough of Merton, access can be tight on terraced streets and around shared driveways, so we plan deliveries and waste removal carefully. Near Cannon Hill Common and Prince George's Playing Fields, gardens can include mature roots and variable ground conditions, which we account for in foundations and drainage. We also consider neighbour boundaries, privacy and overlooking when positioning windows and doors. Where parking is limited, we schedule works to reduce congestion and keep the site compliant.
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Costs vary by size, specification and services, but in Raynes Park most self-contained annexes start around £45,000–£70,000 for a compact studio-style build. Larger annexes with a separate bedroom, higher-end bathroom finishes, upgraded insulation and bespoke joinery often fall in the £80,000–£130,000+ range. Ground conditions, access, utility connections and glazing choices can move the budget up or down. We provide an itemised estimate after a site visit.
A typical build takes 8–14 weeks on site, depending on size, foundation type and the level of internal fit-out. Simple layouts with straightforward access can be quicker, while projects requiring more groundworks, complex drainage runs or bespoke interiors will take longer. Lead times for windows, kitchens and bathroom suites can also affect the programme. We agree milestones in advance and keep you updated throughout.
Some garden buildings can be permitted development, but a self-contained annexe with sleeping, bathroom and kitchenette can trigger additional planning considerations—especially around use as separate accommodation, height, boundary distances and overall footprint. In the London Borough of Merton we review your property constraints, check any Article 4 directions or previous conditions, and advise the best route. Where needed, we provide planning support and drawings to help your application run smoothly.
We provide a 10-year warranty covering the core build, including structural elements, weatherproofing and workmanship. Manufacturer warranties apply separately to items such as windows, doors, electrics components, boilers or water heaters, and bathroom fittings. We also document what’s included and how to maintain finishes, seals and ventilation for long-term performance. If an issue arises, you’ll have a clear point of contact and a prompt response.
We offer a range of styles, from contemporary timber cladding and slimline aluminium glazing to brick or rendered finishes that complement period homes. Internally, you can choose underfloor heating or radiators, fitted storage, acoustic upgrades, and different bathroom and kitchenette specifications. Roof options include flat, mono-pitch or dual-pitch with rooflights for extra daylight. We guide you through choices based on budget, maintenance preferences and how you plan to use the space.
Get your free, no-obligation quote today.