Create a quiet, professional workspace steps from your back door with Garden Offices in Streatham. We design and build insulated, secure garden rooms with electrics, heating and internet-ready cabling, tailored to your plot and lifestyle.
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Streatham homeowners want extra space without sacrificing the garden, especially around Streatham Common and the busy stretch of Streatham High Road. Our garden offices are purpose-built for daily use, not glorified sheds, with proper insulation, secure doors and a comfortable internal finish. Whether you need a focused home office, studio or meeting space, we design around how you work. We also plan access and installation carefully for SW16 and SW2 properties.
The Streatham mix of Victorian and Edwardian houses, mansion flats and newer apartments often comes with long gardens, shared side access, or tight boundaries. In Streatham Hill and Streatham Vale, we regularly work around mature planting, level changes and existing patios. We’ll recommend the right foundations for your ground and design a footprint that respects neighbours and maximises light. If you’re converting an underused corner into a workspace, we’ll make it feel like a natural extension of the home.
From the first site visit to the final handover, we keep the build tidy, well-managed and clearly scheduled. You’ll get a detailed specification covering insulation, electrics, heating, security and sound proofing, plus practical advice on planning and permitted development. We coordinate groundwork, base, structure and fit-out so you’re not juggling multiple trades. Local clients choose us for straightforward communication, reliable workmanship and a finish that lasts.
We’re on site in around 10 minutes from Norbury, so surveys and follow-ups are easy to arrange. In the London Borough of Lambeth, access can be restricted by side passages, parking controls and terraced layouts, so we plan deliveries and waste removal carefully. Ground conditions and drainage vary across Streatham Park and Streatham Common, which affects foundation choice and levels. Our designs also consider overlooking and boundary constraints common in period streets.




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Costs depend on size, specification and access. As a guide, a compact insulated garden office with electrics typically starts around £12,000–£18,000. Mid-size builds with heating, upgraded finishes and better sound proofing often fall in the £18,000–£30,000 range. Larger bespoke designs with premium cladding, enhanced security, more glazing and complex foundations can be £30,000–£50,000+. A site visit lets us price accurately.
Most garden office builds take around 2–6 weeks from start on site, depending on size and complexity. Groundworks and foundations may take several days, then the structure, insulation, doors/windows and internal fit-out follow. Timescales can extend if access is tight, if you choose bespoke joinery or extensive glazing, or if weather delays groundwork. We provide a clear programme and keep you updated throughout.
Many garden offices can be built under permitted development, provided they meet rules on height, placement, and how much of the garden is covered. However, restrictions can apply for listed buildings, flats, maisonettes, conservation considerations, or if previous extensions have used up allowances. We’ll advise on the likely route in Lambeth, check key constraints, and recommend when a formal planning application or lawful development certificate is sensible.
We provide a 10-year warranty covering workmanship and the structural integrity of the build, including the base/foundations and core building elements. Manufacturer warranties apply separately to items such as doors, windows, cladding systems, heaters and electrical components. We also hand over clear care guidance to help your garden office stay looking sharp. If any snagging issues appear after completion, we resolve them promptly.
Your garden office can be tailored with timber, composite or rendered finishes, plus a choice of roof styles and glazing layouts. Inside, popular options include plastered walls, acoustic insulation for sound proofing, built-in storage and durable flooring. We can integrate panel heaters or underfloor heating, smart lighting, and secure multi-point locking. We’ll guide you through options based on budget, privacy, maintenance preferences and how you plan to use the space.
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