East Sussex · South East
Home Extension Costs in Brighton
Brighton's desirable coastal location and vibrant property market drive home extension costs well above the national average. The city's Regency terraces and Victorian villas are frequently extended, with basement conversions becoming increasingly popular.
Extension Types Available in Brighton
Single Storey Extension
A single storey rear or side extension is one of the most popular home improvements in the UK, adding valuable living space without the complexity of multi-level construction.
Estimated cost in Brighton
£33,600 – £52,800
Typical 20m² project
Double Storey Extension
A double storey extension adds significant space on two levels, making it cost-effective per square metre compared to two separate single storey extensions.
Estimated cost in Brighton
£57,600 – £91,200
Typical 40m² project
Loft Conversion
A loft conversion transforms unused attic space into a habitable room, offering one of the best returns on investment of any home improvement project.
Estimated cost in Brighton
£33,000 – £52,500
Typical 25m² project
Kitchen Extension
A kitchen extension creates a modern, open-plan living and dining space, typically extending the rear of the property to accommodate a larger kitchen area.
Estimated cost in Brighton
£33,480 – £54,000
Typical 18m² project
Garage Conversion
A garage conversion transforms an existing garage into a habitable room, offering one of the most affordable ways to add living space without building an extension.
Estimated cost in Brighton
£11,700 – £22,500
Typical 15m² project