Bristol's Expert Loft Conversion Team — Trusted Since 2024
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Bristol's most popular loft conversion type. A dormer extends your roof to create a full-height room with vertical walls, maximum floor space, and stunning views across the city.
A dormer loft conversion is a structural extension that projects vertically from the existing slope of your roof, creating a box-shaped addition with vertical walls and a flat or pitched roof. This dramatically increases both the headroom and usable floor area of your loft.
Dormer conversions are particularly well-suited to Bristol's Victorian and Edwardian terraced houses, where the existing roof pitch often limits headroom. A rear dormer transforms a cramped, unusable loft into a full-height room that feels like a natural extension of the house.

The most common dormer conversion in Bristol. A large flat-roofed extension to the rear of your roof, creating maximum floor space and headroom. Usually falls under Permitted Development.
Combines a rear dormer with a side return dormer to create an L-shape. Ideal for Victorian terraces in Bristol, dramatically increasing the usable loft space.
A dormer on the side slope of your roof. Useful for adding light and headroom to a specific area of the loft, often used alongside rear dormers.
A dormer on the front elevation. These typically require planning permission in Bristol and must be sympathetic to the street scene, particularly in conservation areas.
The cost of a dormer loft conversion in Bristol depends on the size of the dormer, the specification of the finish, and whether an en-suite is included. Below are typical price ranges for Bristol homeowners.
* Prices are indicative for Bristol properties. A fixed-price quote will be provided following your free survey.
Most rear dormer loft conversions in Bristol fall under Permitted Development rights and do not require a planning application. However, if your property is in a conservation area (such as parts of Clifton, Redland, or Cotham), or if the dormer faces the street, you will likely need planning permission. We assess this during your free survey.
A dormer loft conversion in Bristol typically costs between £35,000 and £55,000 depending on the size, specification, and finish. An L-shaped dormer will cost more than a single rear dormer. We provide fixed-price quotes with no hidden extras.
A standard rear dormer loft conversion in Bristol takes approximately 8–10 weeks from start to finish. An L-shaped dormer may take 10–14 weeks. We provide a fixed completion date before work begins.
A dormer loft conversion in Bristol can be used as a master bedroom with en-suite, a children's bedroom, a home office, a guest room, or even a self-contained studio. The full-height space makes it feel like a proper room rather than a loft.