Garden Annexes in Addiscombe that feel like a real home, not a shed. We design and build fully insulated, self-contained annexes with electrics, plumbing, bathroom, bedroom and kitchenette. Planning support is included, so you stay compliant from day one.
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If you need extra space without moving, a garden annexe is a practical upgrade for Addiscombe homes. We create self-contained garden rooms with a bedroom, bathroom and kitchenette—ideal for older relatives, grown-up children, or a quiet home office. Many clients near Addiscombe tram stop and Ashburton Park choose an annexe to keep family close while maintaining privacy. Everything is designed to suit your garden size and daily routine.
Addiscombe’s mix of Victorian terraces, Edwardian houses and 1930s semis often comes with long gardens and side access that can work well for an annexe build. We’re used to working around existing patios, mature planting and shared boundaries common in CR0 streets. Whether you’re close to East Croydon or over towards Shirley, we tailor the layout to maximise light and minimise overlooking. Our designs also consider noise and comfort, with proper insulation and ventilation.
From the first site visit to handover, we manage the full build: foundations, insulated structure, doors and windows, electrics, plumbing, heating and internal finishes. You’ll get clear specifications, staged payments, and a tidy, well-managed site with respectful neighbours in mind. We coordinate building control and provide planning support where needed, so there are no surprises later. Fine Landscaping is based just 10 minutes away, which means quick responses and reliable aftercare.
Across the London Borough of Croydon, access and parking can be tight, especially on residential roads near Addiscombe Railway Park and Woodside. We plan deliveries, waste removal and working hours to reduce disruption and keep neighbours on side. Ground conditions vary, so we assess drainage, levels and existing services before fixing the foundation approach. For period properties, we also match materials and proportions so the annexe complements the main house.
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Costs vary with size, specification and how far services must be run from the house. As a guide, a compact, self-contained annexe with bathroom and kitchenette often starts around £45,000–£70,000, while larger or higher-spec builds can be £80,000–£120,000+. Groundworks, insulation levels, glazing, heating, and bespoke joinery can all affect the final budget. We provide a detailed, itemised quote after a site survey.
Most garden annexes take around 8–14 weeks from the start of groundworks to completion, depending on complexity. Smaller, simpler layouts can be quicker, while larger annexes with multiple rooms, higher-end finishes or tricky access may take longer. Timescales are influenced by foundation type, weather, lead times for windows/doors, and the extent of plumbing and electrical runs. We give a realistic programme and keep you updated throughout.
Some garden buildings can be built under permitted development, but a self-contained annexe with sleeping and washing facilities may need closer checks. Rules can depend on height, footprint, distance to boundaries, and whether the property has restrictions or is in a sensitive area. We review your site, advise on the likely route, and provide planning support if an application is needed. We also coordinate building control requirements for compliance.
We provide a 10-year warranty covering workmanship and the structural build, giving you long-term peace of mind. This includes key elements such as the insulated structure, weatherproofing, and installation quality, subject to normal use and maintenance. Manufacturer warranties also apply to many components like windows, doors and certain electrical products. At handover, we supply documentation and aftercare guidance, and we’re nearby for any follow-up support.
You can choose from contemporary or more traditional looks, with options such as timber cladding, brick slips, rendered finishes, and a range of roof styles. Inside, we can fit compact or full kitchenettes, walk-in showers, built-in storage, and different heating solutions. Glazing choices include sliding doors, bi-folds or picture windows to suit privacy and light. We guide you through layout and finishes so the annexe works beautifully with your garden and home.
Get your free, no-obligation quote today.