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Attic Conversion Cost Guide | Average Costs of Attic Conversions

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Want to increase the size and value of your property? Then think about converting your unused loft space – get the latest average attic conversion costs here.

How much does a Attic Conversion cost?

Average cost in UK: £20k

Get local prices

£12k


LOW COST

£26k


HIGH COST

£20k


AVG COST

The average cost for a Attic Conversion is £20000. You are likely to spend between £12500 and £25700 total. Exact price may vary depending on your area and project details.

Next Step: Find out exactly how much your project will cost.

How much does a Attic Conversion cost?

Average cost in UK: £20k

Get local prices

£12k


LOW COST

£26k


HIGH COST

£20k


AVG COST

The average cost for a Attic Conversion is £20000. You are likely to spend between £12500 and £25700 total. Exact price may vary depending on your area and project details.

Want to increase the size and value of your property? Then think about converting your unused loft space – get the latest average attic conversion costs here.

How Much Do Attic Conversions Cost?

For many homeowners, attic space is often left as half-empty storage, ignored for most of the year and ventured into only when some old, lost item needs to be retrieved from its corners. But if you’re struggling for a room downstairs, why not clear out all the old stuff and turn the extra space into something practical? A loft conversion is great if you’re in need of an additional bedroom, a study or office space, or even a quiet living area where you can relax by escaping the stress of life downstairs. Plus it works out as a great investment, even adding value to your property in the long run!

Before you begin, you should first check whether or not you need:

Attic Conversion Cost Summary:

  • Price Range = £14,900 to £25,700
  • Average Cost = £20,000
  • Cheapest Price = £12,500

Detailed Cost of Attic Conversion

Attic conversion costs vary depending on size and your design specifications but to help you get started, we’ve compiled the following list which gives a rough idea of recent attic conversion prices:

  • Structural Alterations: including strengthening via beam and joist installation, plus secured flooring and all joinery work will cost between £2,000 and £5,000
  • Insulation: roof and flooring if necessary, including all boarding and plastering will cost between £800 and £1,200
  • Windows: two small or one large velux-style skylights, double glazed will cost between £1,800 and £3,500
  • Bathroom installation: including plumbing and pipework, plus toilet and single washbasin fittings costs between £6,000 and £8,000
  • Wiring and electrics: including all lighting facilities and two power sockets costs between £3,500 and £5,000
  • Painting and decorating: interior design, paint, wallpaper and all minor fixtures and fittings costs between £800 and £3,000.

TOTAL ATTIC CONVERSION COST: £14,900 to £25,700

Of course, these figures just outline the average cost of an attic conversion; for more specific and accurate details regarding your particular property and loft design, you should contact a fully qualified surveyor or loft conversion company to carry out a preliminary inspection to help you reach quotes more suited to your loft conversion plans.

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