Add flexible living space with Garden Annexes in Twickenham, built for year-round comfort. We deliver a self-contained annexe with insulation, electrics, plumbing, kitchenette and bathroom—ready to use.
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From riverside streets near Marble Hill Park to family roads around Whitton, Twickenham homeowners are using garden annexes to gain space without moving. Our annexes are fully self-contained, with a bedroom area, bathroom and kitchenette to suit guests, grown-up children or a private home office. We design around your garden’s layout, privacy needs and access. If you’re in TW1 or TW2, we can survey quickly and advise on the best footprint.
The Twickenham area features Victorian villas, Edwardian houses and many 1930s family homes with generous rear gardens. We’re used to working with side returns, long plots and shared access routes common in Richmond, St Margarets and Teddington. Our team plans foundations, insulation levels and services runs to suit older properties and existing drainage. The result is a warm, quiet annexe that feels like part of the home rather than an afterthought.
Fine Landscaping manages the full build: design, groundworks, structure, insulation, electrics, plumbing and final finishes. You’ll get clear specifications, staged payments and a tidy site throughout, with realistic timelines agreed up front. We also provide planning support, including guidance on permitted development and any constraints that apply locally. Many clients choose us because we coordinate trades properly and deliver a snag-free handover.
Across the London Borough of Richmond upon Thames, access and parking can be tight, especially on residential streets near Twickenham Stadium. We plan deliveries, waste removal and working hours to minimise disruption and keep neighbours on side. Ground conditions vary from made ground to heavier clay, so we specify the right base and drainage approach for long-term stability. If required, we liaise with the council and prepare drawings to support applications for garden annexes in London Borough of Richmond upon Thames.




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Costs vary by size, specification and how far services must run from the house. As a guide, a compact, insulated studio-style annexe with electrics can start around £45,000–£70,000. A larger, fully self-contained option with kitchenette, bathroom, plumbing upgrades and higher-end finishes is often £80,000–£140,000+. We’ll survey your TW1/TW2 garden and provide a detailed breakdown so you can compare like-for-like.
Most builds take around 8–14 weeks from groundworks to final sign-off, depending on size and complexity. Service connections (water, waste and electrics), bespoke glazing, and bathroom/kitchen fit-out can extend the programme. If planning approval is needed, allow extra time for drawings and council determination. We provide a staged schedule and keep you updated throughout, including key milestones for first fix and final fit-out.
Many garden buildings can be permitted development, but using an annexe as a self-contained unit can affect what’s allowed. Height limits, boundary distances, listed buildings and conservation areas (common locally) may also apply. We check your site, intended use and constraints, then advise whether permitted development is suitable or if a full application is safer. Our planning support includes drawings and guidance tailored to garden annexes Twickenham area requirements.
We provide a 10-year warranty on the main build structure and workmanship, giving you confidence that the annexe is built to last. This covers issues such as structural defects, weatherproofing failures and installation problems arising from our work. Manufacturer warranties apply separately to items like windows, doors, electrics components and appliances. We also complete a thorough snagging process and remain available for aftercare should anything need adjustment.
You can choose from contemporary or more traditional looks to suit Twickenham’s Victorian and 1930s homes. Popular options include timber or composite cladding, brick slips, aluminium bifolds, rooflights and sedum roofs. Internally, we can fit compact kitchenettes, walk-in showers and built-in storage to maximise space. We’ll help you balance aesthetics, insulation performance and budget, and provide samples so you can make decisions confidently.
Get your free, no-obligation quote today.