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Loft conversion costs recently

15 replies

Iwannabelessfat · 17/03/2024 10:47

Hi, I saw a thread from last year on this but just wondered what people had paid for loft conversion costs?

The house we are considering buying has a velux loft room with the staircase all in, so wondering how much it would be to convert that into a full dormer master bedroom with en-suite. We are in London.

OP posts:
newbeliever · 17/03/2024 13:32

I have a Victorian house with velux conversion with full building regs, staircase etc, it’s about 20 years old. I got a couple of full dormer quotes last summer when we were considering whether to stay/improve or move house. The quotes were both around £65K that was for basic shell, needed to add on bathroom suite, tiles, flooring, fitted cupboards. We would have ended up with a very generous double bedroom, study space and en-suite shower.

I was surprised as thought the room is there, but was told they are basically starting again and it has to meet new building regs. We decided to move!

newbeliever · 17/03/2024 13:32

Forgot to say, I live just outside the M25.

ChocolateChoux · 17/03/2024 21:17

I'm in the Midlands so probably cheaper than London but we have just finished an L shaped dormer loft conversion in a 2 bed terrace. The total has come to around £75k, not including the bathroom which is going to have to wait a bit. Prices are bonkers at the moment!

Femmefatality · 18/03/2024 06:25

70k large conversion, 2 beds and bathroom. 2024.

Iwannabelessfat · 18/03/2024 09:27

Thanks all. I was hoping for it be around 50k given then existing recent conversion is there. Costs are crazy at the moment. Only a few years ago you could get the whole thing done for about 40k

OP posts:
newbeliever · 18/03/2024 10:27

Iwannabelessfat · 18/03/2024 09:27

Thanks all. I was hoping for it be around 50k given then existing recent conversion is there. Costs are crazy at the moment. Only a few years ago you could get the whole thing done for about 40k

I know, we couldn’t bring ourselves to spend the money given we already had a reasonable size bedroom and bathroom with our velux conversion.

We knew the finished room would be amazing but we’d only be gaining 12sqm of space which didn’t seem worth it. Kicked ourselves we didn’t do a dormer conversion initially but at the time 20 years ago we though they were ugly!

I guess if you are doing an L shape dormer it may be worth it as you’re gaining more space but they wasn’t the case for us.

boymum1989 · 18/03/2024 12:23

Expensive at the moment - we've spent around £75k in SW London on an end of terrace, which has given us a bathroom and two double bedrooms (one in the eaves, but with plenty of head height(. Around 500sqft in total with a full width dormer. This has given us a brand new roof on the front as well, however my husband is in the trades so we've had some discounts on windows, etc. and his labour/project management, which isn't included in that figure.

boymum1989 · 18/03/2024 12:23

Just to add, we had someone build out the dormer frame for us - they work for a loft company and said they're currently quoting around £100-120k for similar in the area. Bespoke joinery and expensive bathroom materials/suites can really push up the price. And F&B paint - obviously!

Iwannabelessfat · 18/03/2024 13:16

@boymum1989 thats insane! £100k! Lots to think about. Perhaps if we could get two bedrooms out of the space it might make it more feasible!

OP posts:
Freetodowhatiwant · 18/03/2024 15:49

I had a casual quote the other day, casual as I popped into the office of the loft people doing another house on my street and they gave me a verbal rough estimate. Around 70k in a relatively affluent part of the south east, 3 bedroom 1930s semi.

TedTTedT · 02/08/2024 18:48

Ours cost quite a bit. We used a loft conversion cost calculator, which was pretty accurate. But sifted few a lot of quotes, and from specialists nearby and was pretty expensive - I'd definitely advise checking the reviews out first before accepting them even to come give the full quote. Or even ask friends who've been happy with the quality. Cost is one thing, but quality and the finished product matters - you don't want a botched job!

Loft Conversion Calculator 2024 | Instant Prices

Instantly calculate loft conversion costs with our free tool. Get accurate estimates for Dormer, Velux, Mansard, and more.

https://www.loftcompare.co.uk/loft-conversion-calculator

yoshiblue · 14/10/2024 20:59

We've just spend just under £80k on a loft conversion (1 bed/bath) in NW England. Nearly £10k of that was scaffolding/tin hat though. No chance for the figures you're mentioning, and that's before you add London pricing!

housethatbuiltme · 15/10/2024 13:56

A velux room like you describe could be as cheap as £15k (starting price of a small legal but very basic/cheap) depending on deals you can source, where you live, what its for, if its 'legal' and the overall finish.

To do things like dormers though is going to skyrocket that price, its major structural changes to the property and probably a bare minimum of 50k if your lucky but adding bathrooms cost more on top. There is so many things that effect price though thats its kind of a how long is a piece of string question.

TedTTedT · 26/06/2025 15:07

housethatbuiltme · 15/10/2024 13:56

A velux room like you describe could be as cheap as £15k (starting price of a small legal but very basic/cheap) depending on deals you can source, where you live, what its for, if its 'legal' and the overall finish.

To do things like dormers though is going to skyrocket that price, its major structural changes to the property and probably a bare minimum of 50k if your lucky but adding bathrooms cost more on top. There is so many things that effect price though thats its kind of a how long is a piece of string question.

Yeah Velux is a god shout, avoids planning too usually.

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