Add a high-spec, self-contained space without moving home. Our Garden Annexes in Kennington are designed, built and fully fitted with insulation, electrics and plumbing. Ideal for guests, grown-up children, or a quiet work-and-sleep setup.
Response within 24 hours
Kennington homes often have valuable garden space that can work harder for modern family life. We build premium garden annexes near Kennington Park and SE11 streets, creating comfortable accommodation with a bedroom, bathroom and kitchenette. Whether you’re close to Kennington tube station or nearer Oval, we tailor the layout to your plot. Every build is insulated, secure and finished to a high standard.
From Georgian townhouses around the squares to Victorian terraces and mansion blocks, properties in Kennington come with varied garden sizes and access routes. We’re used to narrow side returns, shared passages and tight boundaries common around Vauxhall and Elephant & Castle. Our team designs annexes that respect neighbouring sightlines and period character while delivering modern performance. We also plan services runs carefully so electrics and plumbing integrate neatly with your home.
You’ll get a clear plan from first survey through to handover, including specifications for insulation, electrics, plumbing, kitchenette and bathroom fittings. We manage groundworks, drainage, and all internal fit-out, with tidy working practices and realistic timelines. Homeowners choose us for transparent communication, consistent craftsmanship and dependable aftercare. Planning support is included, so you’re not left navigating paperwork alone.
Working across the London Borough of Lambeth, we plan for Kennington’s access constraints, controlled parking and busy streets near The Oval. Many gardens sit behind terraces with limited delivery space, so we schedule materials and waste removal carefully. Ground conditions can vary, so we assess drainage and foundations early to avoid surprises. If you’re in the garden annexes kennington area around SE11, we’ll also advise on privacy, overlooking and boundary details.
Rated 4.9/5 from over 280 verified reviews
Costs for garden annexes in Kennington typically start around £45,000–£70,000 for a compact, well-finished insulated annex with electrics. A larger, fully self-contained build with bathroom, kitchenette, upgraded glazing, heating and higher-end finishes often sits in the £80,000–£140,000+ range. Price is shaped by size, groundworks, plumbing runs, specification, access restrictions and any bespoke joinery or cladding choices.
Most projects take around 8–14 weeks from the start of on-site works, depending on size and complexity. Simple builds with straightforward access and short service runs can be quicker, while annexes with a full bathroom, kitchenette, complex foundations or bespoke interiors can take longer. Lead times for windows, doors and specialist finishes also affect schedules. We provide a staged programme before work begins and keep you updated throughout.
Some garden annexes can fall under permitted development, but rules are strict on height, footprint, boundary distances and intended use. In the London Borough of Lambeth, additional constraints may apply for conservation areas or listed buildings, which are common around older Kennington streets. We check your property, propose compliant designs and provide planning support where needed. If an application is required, we help prepare drawings and documentation to reduce delays.
We provide a 10-year warranty covering the structural build and workmanship, giving you confidence in the annexe’s long-term performance. This includes key elements such as the main structure, insulation build-up, weatherproofing and installation quality. Manufacturer warranties apply separately to items like windows, doors, electrics components and bathroom fittings. We also offer clear aftercare guidance and can return to address any snagging identified after completion.
You can choose from contemporary or more traditional styles to suit Kennington’s Georgian and Victorian settings. Popular options include composite or timber cladding, brick slips, aluminium or uPVC glazing, and warm roof systems with high-performance insulation. Inside, we can fit compact kitchenette units, shower rooms, built-in storage and acoustic upgrades for quieter living. We guide you through layouts, finishes and practical details like heating, ventilation and lighting to match your budget and goals.
Get your free, no-obligation quote today.