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Sheen Builders

SM4 · London Borough of Merton

Builders in Morden

Morden is overwhelmingly inter-war suburbia, built after the Northern line arrived in the 1920s, and its semis and terraces are some of the most straightforward houses in South West London to extend. Most homes here have long gardens and roofs that suit a loft conversion.

Homes in Morden

Merton's Borough Character Study notes that almost 85% of Morden is made up of just three types of place: suburban homes, green space and cottage estate homes. The area stayed largely rural until the Underground arrived, and the town centre developed after the Northern line extension in the 1920s. Cannon Hill has 1920s and 1930s terraces and semi-detached houses, while Lower Morden has curving terraced streets of low-rise inter-war homes.

Part of the St Helier estate, built by the London County Council between the wars with garden-city principles and red-brick terraces arranged around greens, falls within Merton; the rest is in the London Borough of Sutton. Inter-war semis and terraces like these are well suited to hip-to-gable and rear dormer loft conversions and single-storey rear extensions.

Planning in Morden

Morden is covered by the London Borough of Merton, apart from the part of the St Helier estate that falls within the London Borough of Sutton, so check which council covers your address. Conservation areas are limited: Upper Morden (around Morden Park and the Church of St Lawrence) and the Wandle Valley conservation area's parks sub-area around Morden Hall Park and Ravensbury, both listed on Merton's conservation areas list. Merton lists no householder Article 4 directions for Morden on its Article 4 page at the time of writing.

Outside the conservation areas, many rear extensions and loft conversions on houses can proceed under permitted development, provided they stay within the national limits; check the current rules on the Planning Portal. Where a scheme relies on permitted development, a Lawful Development Certificate gives written confirmation.

Basements across Merton are governed by Policy D12.11 of the Merton Local Plan (adopted November 2024). It limits a basement under an existing home to a single storey, restricts how far it can extend beyond the original house, and requires a Basement Impact Assessment, a drainage strategy, a construction method statement and a construction traffic management plan with the application. In conservation areas, basements and their lightwells must conserve or enhance the area's character.

Worth knowing locally

  • The Character Study flags the loss of front gardens to hard standing on the St Helier estate. If you're planning parking or a new driveway alongside building work, keep drainage and the street's green character in mind.
  • The River Wandle runs along Morden's eastern edge, where Morden Hall Park and Wandle Park help hold floodwater in heavy rain, so check flood risk before planning anything below ground near the river.
  • Morden Hall and Morden Park House both date from the second half of the 18th century and sit within conservation areas, so works near them are more closely controlled.

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