Rough cost of converting a garage to a living room

[KatyMac]

Assuming if other people have done it on the road planning permission would probably be given

Pretty basic spec, maybe a bit extra on good insulation - in Suffolk - it has power

just a rough guesstimate as prices keep going up

Quote for internal garage conversion - brick up door, add window, full insulation, plasterboard walls, raise floor level to match the rest of the house (suspended not solid), radiator, nice door into house (currently a security door) and changing the lights to something more suitable but leaving decorating to me - £20k (although I'm allowing more as a contingency). No need for planning as it's within permitted development and there are many conversions in the street because unless you drive a 1980s hot hatch you can't get a car into the garage 😂

Sounds lovely! an expert, thank you

God I have a Ford Tourneo I'd need a double!

Dont suppose you know a garden office/cabin price for comparison do you?

How Big is the garage

Looking at different houses so if its small I've put in 22, medium 26 and huge 30

In my spreadsheet

Back to this as an idea

I am reasonably handy and I have borrowed muscle - how much can I DIY?

Celotex? Is that basically a diy job? Windows and doors aren't decorating is diy

Not electrics first fix im not an idiot but what about light fittings - can you buy a kit? Or is it all certificated now

and there is no water but there will be paid for heating (hopefully something quite eco)

Help!