Garden Annexes in Richmond designed for real, everyday living—private, comfortable and beautifully finished. From insulation to electrics, plumbing, kitchenette and bathroom, we deliver a fully self-contained space that adds value and flexibility to your home.
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A garden annexe is a practical way to gain extra living space without changing the feel of your home. In Richmond, we create self-contained annexes that work as guest suites, teen studios, home offices or downsizing options for relatives. We regularly work near Richmond Green and around TW9 and TW10, where gardens can be long, mature and carefully landscaped. Each build is planned to sit comfortably alongside existing planting, patios and boundary lines.
Homes across Kew, Twickenham, Ham and Petersham often include Georgian townhouses, Victorian villas and sought-after riverside properties. These settings demand a considered approach—clean lines, sympathetic materials and tidy detailing. We design annexes that suit period architecture while delivering modern performance: proper insulation, reliable electrics and well-routed plumbing. The result feels like a natural extension of the property rather than an add-on.
Our process starts with a site visit, measured survey and a clear scope of works, then we move into design, specification and scheduling. We coordinate groundwork, structure, insulation, first-fix and second-fix services, then complete finishes and final testing. Homeowners choose us for consistent workmanship, transparent communication and tidy, well-managed sites. With planning support included, you’ll have guidance from early feasibility through to council submissions when needed.
Working across the London Borough of Richmond upon Thames, we plan for tight access, controlled parking and careful neighbour considerations. Many plots near Richmond Park have mature trees and root protection areas, so we adapt foundations and service routes accordingly. Period properties can have sensitive sightlines and boundary conditions, so we keep heights, cladding and glazing proportions under close review. We also factor in riverside ground conditions where relevant, ensuring stable bases and durable drainage solutions.
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Costs for garden annexes in the Richmond area vary with size, specification and service connections. As a guide, a compact, well-insulated annexe with electrics can start around £45,000–£70,000. A larger, fully self-contained build with kitchenette, bathroom, plumbing runs and higher-end finishes is often £80,000–£140,000+. Groundworks complexity, access, and bespoke glazing or cladding choices can move budgets up or down.
Typical build times are 8–14 weeks from start on site for most self-contained annexes, depending on size and complexity. Simple layouts with straightforward access and short utility runs can be quicker, while bathroom/kitchen fit-outs, bespoke joinery and extensive groundwork can extend the programme. Lead times for windows, doors and specialist finishes also affect scheduling. We provide a staged timeline before work begins and keep you updated weekly.
Some garden buildings can fall under permitted development, but a self-contained annexe with sleeping and washing facilities can trigger extra rules, especially around use, height, boundaries and listed or conservation constraints. In the London Borough of Richmond upon Thames, we check the property status, access, and any restrictions before recommending a route. If planning is required, we provide planning support, drawings and documentation to help the application run smoothly.
We provide a 10-year warranty covering workmanship and key build elements, giving you long-term confidence in the structure and installation quality. This includes issues arising from our construction, fitting and finishing work, subject to normal use and maintenance. Electrical and plumbing components are installed to current standards and supplied with relevant certification. We also offer a clear handover pack and aftercare support for any settling-in queries.
We tailor each annexe to your home and garden, from contemporary to more traditional styles suited to Richmond’s period properties. Popular options include timber or composite cladding, brick slips to echo the main house, aluminium or timber-framed glazing, and warm internal finishes such as engineered oak flooring. Layouts can include a bedroom zone, compact kitchenette, shower room and built-in storage. We guide you through choices based on budget, maintenance and planning considerations.
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