Cost to build a dormer loft conversion in Wales

Add extra space to your Wales home from £41,584

Dormer loft conversions are ideal if you want to add lots of extra space to your home. Adding a box-like structure or structures to the roof, you essentially extend the roofline to add significant square footage to your loft space. This makes dormer loft conversions one of the most popular loft conversion types, as they're ideal for adding a new main bedroom with en-suite or even a self-contained living space.

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Build a dormer loft conversion cost in Wales

Cost of dormer loft conversions in Wales

Estimates for build a dormer loft conversion near Wales

In Wales, prices for dormer loft conversions range from £41,584 (Cherry Build Limited based in LD1) to £41,616 (DRAGON CONSTRUCTION T/A based in SY25), but how much your conversion costs will vary depending on the size of your property, how easy access to your roof is and what you want to use the space for.

The best way to get an accurate price is to compare quotes from extension builders in Wales. Post your job on HaMuch now and we'll put you in touch with available extension builders.

Estimates for common extension builder jobs in Wales;

Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

Underpin a building

Underpin a building - £17,103

Two storey extension

Two storey extension - £87,404

Build a timber frame extension

Build a timber frame extension - £25,603

Build a swimming pool

Build a swimming pool - £80,603

Single storey extension

Single storey extension - £47,053

Side return extension

Side return extension - £37,030

Install an RSJ

Install an RSJ - £1,803

Outbuilding

Outbuilding - £9,603

Build a Mansard loft conversion

Build a Mansard loft conversion - £51,603

Loft conversion

Loft conversion - £30,025

Build a kitchen extension

Build a kitchen extension - £41,603

Hip to gable loft conversion

Hip to gable loft conversion - £41,603

Granny annexe

Granny annexe - £86,603

Garden office

Garden office - £9,603

Convert a Garage

Convert a Garage - £15,603

Garage

Garage - £18,103

Build a flat roof extension

Build a flat roof extension - £21,603

Build a dormer loft conversion

Build a dormer loft conversion - £41,603

Concrete foundations

Concrete foundations - £5,853

Convert a bungalow loft

Convert a bungalow loft - £28,603

Convert a basement

Convert a basement - £33,030

More extensions & conversions cost guides...