Create extra living space without moving with Garden Annexes in Herne Hill. We design and build self-contained annexes with a bedroom, bathroom and kitchenette. Fully insulated, wired and plumbed, with planning support from start to finish.
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From Brockwell Park to the streets around Herne Hill station, homeowners in SE24 are finding smart ways to add space. A garden annexe gives you a self-contained room for guests, older children, working from home or multigenerational living. Our builds can include a kitchenette, bathroom and bedroom, finished to a premium standard. You get a comfortable, insulated space that feels like part of the home, not a shed at the end of the garden.
The Herne Hill area is known for Victorian terraces, Edwardian houses and well-kept period conversions, often with long, narrow gardens and shared access. We’re used to working around mature planting, boundary walls and tight side returns common near Dulwich and Brixton. Services are planned carefully so electrics and plumbing run neatly and efficiently. The result is a garden annexe that suits the character of your property while adding real day-to-day value.
Fine Landscaping handles the full build: site survey, design, groundworks, insulation, electrics, plumbing, and final fit-out. We provide clear specifications, staged payments and tidy working practices, with realistic timelines agreed upfront. Planning support is included, so you understand what’s permitted and what needs approval before work begins. Many clients choose us because we’re local (around 15 minutes away) and we deliver consistent workmanship you can rely on.
Across the London Borough of Lambeth/Southwark, we often see clay-heavy ground and mature tree roots near parkland, which can affect foundations and drainage. Herne Hill streets can have restricted parking and tight access, so we plan deliveries and waste removal to minimise disruption. Period properties around Tulse Hill and Denmark Hill often need sympathetic finishes and careful service routes. We adapt each build to the plot, council expectations and the way you use your garden.
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For Herne Hill projects, a high-quality garden annexe typically starts around £45,000–£70,000 for a compact insulated studio with electrics. A fully self-contained annexe with bathroom, kitchenette, plumbing, higher-spec glazing and bespoke joinery is more commonly £80,000–£140,000+. Costs vary with size, ground conditions, access, utility connections and the level of internal fit-out you choose.
Most builds take around 8–14 weeks on site once designs are agreed and materials are ordered. Smaller annexes with straightforward groundworks can be quicker, while projects needing drainage upgrades, complex plumbing runs or bespoke interiors take longer. If planning permission is required, add the council decision period on top. We provide a programme, keep you updated, and coordinate trades to avoid unnecessary downtime.
Some garden buildings can be permitted development, but a self-contained annexe (especially with a bathroom and kitchenette) may trigger extra rules, and Lambeth or Southwark may view “separate living accommodation” differently. Constraints like conservation areas, listed buildings, height limits and boundary distances also matter. We offer planning support, check your site and advise whether a lawful development certificate or full application is the safest route.
We provide a 10-year warranty covering workmanship and the structural build elements of your garden annexe, giving you long-term peace of mind. Manufacturer warranties apply separately to items such as windows, doors, roofing membranes, boilers or electric heaters, and sanitaryware. We also document key stages and specifications so you know exactly what’s been installed. Any snagging is handled promptly after completion.
We offer a range of styles to suit Herne Hill homes, from contemporary timber-clad annexes to crisp render finishes that complement period properties. Popular options include flat or pitched roofs, aluminium or timber windows, underfloor heating, acoustic insulation, and built-in storage. Inside, you can choose compact kitchenette layouts, shower rooms or full bathrooms, and flexible bedroom/office zones. We guide you on finishes that balance durability, budget and planning considerations.
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