Pricing.

Here are some ROM Costs (Rough Order of Magnitude):

Consultancy:

Architectural Design Package £800 – £2,500

Structural Design Package £1000 – £2,000

Building Control £800 – £1,500

Interior Design £500 – £2,000

Main Areas:

Single Storey Extension £50,000 – £90,000

Double Storey Extension £135,000 – £185,000

Loft Conversion £50,000

Loft Conversion with Dormer £75,000

Open Plan Works £10,000

Kitchen Refurbishment £25,000

Kitchen/Diner Renovation £35,000 – £55,000

Bathroom Refurbishment £8,000 – £12,000

Ensuite Creation £8,000 – £12,000

WC under the stairs £4,000 – £8,000

Garage Conversion £35,000 – £45,000

Full house Renovation 3 bed £200,000+

Full house Renovation 4 bed £300,000+

Full house Renovation 5 bed plus £400,000+

Build Garage £35,000 – £50,000

Build Annex £150,000

New Build £200,000 – £300,000