Add high-value living space without moving with Garden Annexes in Victoria. We design and build self-contained annexes with bedroom, bathroom, kitchenette, insulation, electrics and plumbing. Planning support included for SW1 homeowners.
Response within 24 hours
Victoria is defined by busy streets, tight access and premium property values, so every square metre counts. Our garden annexes create a self-contained space for guests, older children, a live-in nanny or a quiet home office with overnight capability. We regularly work around Victoria Street and near Victoria Station, where logistics and neighbour considerations matter. Expect a refined finish that suits City of Westminster homes.
In the Victoria area you’ll find mansion blocks, Georgian townhouses and modern apartments, often with compact courtyards or rear gardens. We design annexes that respect period detailing in Belgravia and Pimlico while still delivering modern comfort. High-performance insulation, smart ventilation and careful acoustic detailing are especially valuable in central locations. If your garden is small, we’ll optimise layout so the kitchenette, bathroom and bedroom feel spacious.
Fine Landscaping handles the full build: survey, design, groundwork, structure, insulation, electrics, plumbing and final finishes. You’ll get clear specifications, staged payments and tidy site management to keep disruption low. We provide planning support and coordinate with building control where required, keeping paperwork and compliance straightforward. Homeowners choose us for reliable timelines, premium workmanship and a 10-year warranty.
Central SW1 sites often mean restricted access, controlled parking and close neighbours. We plan deliveries, waste removal and working hours to suit Victoria’s traffic and property management rules. Ground conditions and existing services can be complex in older Westminster plots, so we survey early and design around drains, utilities and party boundaries. Our builds are tailored to mansion blocks, mews-style gardens and townhouse rears.
Rated 4.9/5 from over 280 verified reviews
In Victoria, garden annexes typically range from £55,000–£120,000+, depending on size, specification and access. A compact, well-finished annexe with insulation, electrics and basic plumbing often starts around £55,000–£75,000. Adding a full bathroom, higher-end kitchenette, bespoke glazing, premium cladding and complex groundwork can take budgets to £90,000–£120,000+. We provide a detailed, itemised estimate after a site survey.
Most garden annex builds take around 8–14 weeks on site once design and approvals are in place. Smaller, straightforward projects can complete in 6–8 weeks, while larger annexes with a bathroom, kitchenette, extensive drainage runs or restricted access in SW1 may take 12–16 weeks. Timescales are affected by groundwork complexity, utility connections, bespoke joinery and lead times for windows, doors and finishes. We agree a programme before work starts.
Some garden buildings can fall under permitted development, but a self-contained annexe with sleeping, bathroom and kitchenette can trigger planning considerations, especially in the City of Westminster. Restrictions may also apply to listed buildings, conservation areas and properties with tight boundaries. We assess your site, advise on the safest route and provide planning support, including drawings and statements where needed. We also guide you on building regulations compliance for insulation, electrics and drainage.
We provide a 10-year warranty covering workmanship and the structural integrity of the annexe build, including the building envelope and key construction elements. Manufacturer warranties apply separately to products such as windows, doors, roofing membranes, appliances and specific finishes. Electrical and plumbing works are carried out by qualified professionals and certified where required. We also offer a clear snagging process after completion to ensure everything performs as intended.
You can choose from contemporary or more traditional designs to suit Victoria’s mansion blocks and Georgian townhouses. Popular options include timber or composite cladding, brick slips, zinc-style roofing, slimline aluminium glazing and acoustic upgrades. Internally, we can fit compact kitchenette layouts, walk-in showers, built-in storage and underfloor heating. We’ll help you select finishes that balance durability, maintenance and planning considerations, then produce a clear specification before build.
Get your free, no-obligation quote today.