Garden Rooms in Wimbledon, SW19
Bespoke garden rooms across Wimbledon, from the Village and the Common to Wimbledon Park, the Chase and Merton Park. Garden offices, studios, gyms and annexes from around £35,000.
Wimbledon has the largest gardens of any area we cover in south west London and a clean planning position. No Merton Article 4 Direction touches outbuildings anywhere in the borough. Free quotes, no obligation.
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What Merton's 2026 Article 4 Actually Covers
If you have heard that Merton recently brought in an Article 4 Direction across Wimbledon, that is true, and it is worth knowing what it does before assuming it affects you. The council made an immediate direction on 24 March 2026 covering thirteen wards, including Wimbledon Town, Dundonald, Village, Wimbledon Park, Hillside, Abbey and Merton Park.
It withdraws the right to convert a house into a small house in multiple occupation. It has nothing whatever to do with garden buildings, and no part of it touches the outbuilding right.
No Outbuilding Direction in Merton
The borough's only householder directions cover the John Innes conservation areas at Merton Park and Wilton Crescent, and every restriction in them is qualified to development fronting a public highway or other public space. A building in a rear garden sits outside their scope by construction.
Conservation Area Alone Is Not a Bar
Wimbledon sits across seven conservation areas including the Village, Wimbledon West and North, Hill Road, Broadway, Chase and the Windmill. Conservation area status restricts a building between a side elevation and the boundary and protects trees, but leaves rear garden buildings as permitted development.
What Does Close the Route
Two things. If your house is listed, nothing in the garden is permitted development, and Wimbledon has a scattering of listed ordinary houses on the Ridgway, Denmark Road, Lancaster Road and around the Green. And if your home is a flat or a converted house, Part 1 does not apply at all, so an application and freeholder consent are both required.
Merton planningFive Times the Difference Across SW19
Wimbledon has the widest internal spread of plot sizes of anywhere we work. A design that suits a Common-side house is not the same building as one for a street off the Broadway, and the difference is not marginal.
| Area | Median garden | Against London |
|---|---|---|
| Wimbledon Common | 394.9 m² | Nearly three times |
| Wimbledon Hill | 171.6 m² | Above |
| Wimbledon Broadway North | 137.2 m² | About the median |
| Wimbledon Chase | 101.5 m² | Below |
| Wimbledon Park and Durnsford Road | 82.1 m² | Well below |
| South Wimbledon | 75.9 m² | Roughly half |
ONS and Ordnance Survey, published April 2020, median private outdoor space for a house. The London median is 139.6 square metres.
Whole-house share tracks it. Merton Park is around 74 per cent whole houses and the Village 60 per cent, against Hillside at 34 per cent. Merton's borough median garden of 119.5 square metres sits below the London figure, so the Common-side plots are doing a lot of work in that average.
Garden Room Costs in Wimbledon
Budget from around £35,000 for a bespoke build. On the Common and Hill plots, where the house is unlisted and the design stays inside the Class E limits, there is no application fee and no determination period, and the coverage rule never comes close to biting. Closer to the station and in South Wimbledon the plot decides the design rather than the other way round.
On Property Values
SW19 sold prices averaged £875,652 over the last twelve months, with terraced houses at £1,002,096 and semi-detached at £1,464,364, on Rightmove figures published 9 July 2026 covering transactions to 30 April 2026. We do not publish a percentage for what a garden room adds, because no independent body measures it and every figure in circulation comes from manufacturers marketing their own product.
Wimbledon is the only area we cover with trams, alongside the District line and South Western Railway, all in Zone 3. Wimbledon Common is held with Putney Heath and Putney Lower Common by Conservators under an Act of Parliament of 1871, keeping around a thousand acres open and unenclosed, and the All England Club sits on Church Road. Merton adopted its new Local Plan in November 2024. The same installers cover Putney, which shares those Commons, Wandsworth and Kingston. For the briefs that come up most often here, see the garden office and garden gym specifications.
Garden Room Quotes in Wimbledon
Send us your address and we will confirm whether you need an application at all, then match you with up to three vetted installers who work Merton. Free, and no obligation to proceed.
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Covering Wimbledon, Merton Park and SW19.