A single storey extension can add much needed space to a home, while often being achievable under Permitted Development rights, saving you the headache of having to achieve planning permission.

Whether it’s to create a larger kitchen or you dream of an open plan space for your main living areas, a single storey extension can unlock the potential of a plot and reinvigorate all manner of houses, from listed buildings to bungalows.

1. A Timber-clad CLT Extension

single storey clt extension to listed building timber clad

This CLT extension to a listed barn conversion is a prime example of how to marry contemporary with traditional.

  • Build cost: £250,000
  • Build time: Five months
  • Location: Hampshire

2. Transformation of a Post-War Detached House

timber clad single storey extension to detached brick home

This incredible extension from the rear of a post-war detached house has allowed for the existing home to be transformed into a dramatic double-height open plan space.

  • Build Cost: £295,000
  • Build Time: 11 months
  • Location: Hampshire

3. Light-filled Extension to a Victorian Home

glass single storey extension to victorian home

After living in the house for two years, the homeowners added this beautiful single-storey extension to create a living space that was flooded with natural light.

  • Build Cost: £280,000
  • Build time: 13 months
  • Location: Greater London

4. Contemporary Extension to a Listed Cottage

glass fronted extension

The homeowners enlisted the services of Charlie Luxton to help them create this fabulous contemporary extension scheme that has opened up the living space of a listed cottage.

  • Build cost: £258,600
  • Build time: 12 months
  • Location: Wiltshire

5. A 1930s Bungalow Transformed

chalet style home with single storey extension

This 1930s bungalow has been remodelled and extended to open out onto the mature garden.

  • Build cost: £150,000 (£714/m²)
  • Build time: 8 months
  • Location: Worcestershire

6. Creating an Open Plan Living Space

mother and daughter sitting in front of single storey extension bifold doors open

Built under Permitted Development, this extension provides covered inside/outside entertaining space.

  • Build cost: £68,000
  • Build time: 4 months
  • Location: Oxfordshire

7. Reimagining a 1930s Semi

large glass sliding doors on single storey extension at night

A luxurious, open plan lounge, kitchen and dining area is housed in this light-filled extension.

  • Build cost: £300,000
  • Build time: 7 months
  • Location: London

8. Light-filled Kitchen Extension

glazed kitchen extension

By extending their home, Penny and Douglas Dawson have replaced a small, dark kitchen with a light-filled, open place space.

  • Build cost: £120,000
  • Build time: 4 months
  • Location: West Midlands

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