Add a beautifully finished, self-contained space without moving. Our Garden Annexes in Pimlico combine insulation, electrics and plumbing with a premium fit-out. Ideal for guests, grown-up children or a quiet home office with a proper bedroom and bathroom.
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Pimlico’s elegant squares and riverside plots make garden space exceptionally valuable. We design and build high-spec annexes that sit comfortably behind mansion blocks and period conversions near Tate Britain and St George's Square. Each build can include a kitchenette, bathroom and bedroom, creating a genuinely independent living area. The result is extra space that feels like part of the home, not an afterthought.
Local homes in SW1 range from Regency townhouses to mansion blocks and carefully remodelled period conversions. That mix often means tight access routes, shared boundaries and strict expectations on finish and noise control. We tailor foundations, insulation and services routes to suit older buildings and mature gardens. If you’re in Westminster, Victoria or close to Pimlico tube station, we’ll plan logistics to keep disruption low.
From the first survey to final handover, we manage the full build: design, groundworks, insulation, electrics and plumbing, plus planning support where needed. You’ll receive a clear specification, staged payments and a realistic programme before work begins. Our team keeps sites tidy and secure, with regular updates so you always know what’s happening next. Homeowners choose Fine Landscaping for dependable workmanship and a premium finish that lasts.
Pimlico gardens often sit behind mansion blocks with narrow side returns and controlled access, so we plan deliveries, waste removal and working hours carefully. Ground conditions can vary near the Thames, and we specify suitable bases and drainage to protect the structure long-term. Parking and permits in SW1 can be challenging; we schedule efficiently to minimise vehicle movements. We also design around party walls, mature planting and neighbouring sightlines common in the garden annexes pimlico area.
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In Pimlico, a well-built garden annexe typically starts around £45,000–£70,000 for a compact insulated studio with electrics. A larger, fully self-contained annexe with bathroom, kitchenette, plumbing, heating and higher-end finishes often falls between £80,000–£140,000+. Costs depend on size, access, groundworks, specification, and how far services need to be run from the main house.
Most builds take 6–12 weeks on site once designs and approvals are in place. Smaller annexes with simpler foundations and short service runs can be quicker, while bathroom/plumbing complexity, bespoke joinery, and restricted SW1 access can extend the programme. If planning permission or party wall matters are required, allow additional time before the start date. We provide a staged schedule and keep you updated throughout.
Some garden buildings can be permitted development, but a self-contained annexe with sleeping and bathroom facilities can trigger additional rules, especially in the City of Westminster. Factors include height, proximity to boundaries, use as separate accommodation, and whether the property is listed or in a conservation area. We review your site, advise on the most practical route, and provide planning support to help you stay compliant.
We provide a 10-year warranty covering workmanship and key structural elements of the annexe build. This includes the building envelope, insulation installation, and core construction details when maintained as advised. Manufacturer warranties also apply to many components such as windows, doors, roofing membranes and electrical accessories. At handover, we supply documentation and guidance so you know what’s covered and how to protect your investment.
You can choose from contemporary timber cladding, composite boards, brick slips to echo period properties, or a crisp rendered finish. Inside, popular options include underfloor heating, acoustic insulation, built-in storage, and compact kitchenette layouts with integrated appliances. We’ll help you balance style with practicality—daylight, privacy, and storage—so the annexe works for guests, family living or rental-style independence where permitted.
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