House buying issues

Melvinthecat

Hello!

Back on September 2025, we made an offer of £375,000 on a 4-bedroom house. Our offer was accepted, and our mortgage lender not only agreed in principle but also issued a formal mortgage offer.

However, when the searches came back, we discovered that 2 of the bedrooms (both in the loft) didn’t have building regulation sign-off. Because of this, the lender couldn’t count them as bedrooms and revalued the property as a 2-bedroom house at £320,000. We told the estate agents that we were happy to proceed at that lender-backed valuation.

Recently, the estate agents informed us that the seller won’t accept the lower price. Instead, they plan to relist the property, calling the ground-floor lounge a bedroom so it becomes a 3-bedroom property, aiming for a sale price of £350,000.

The house has 3 reception rooms: a dining room, a living room, and this lounge room (now potentially a “bedroom”). We understand the seller can legally do this, but:

•If we proceed as a 3-bedroom purchase, we’ll likely need a new lender, as our current lender already adjusted from 4 to 2 bedrooms and may not accept 3.

•We really love the house and have had a long, frustrating time trying to buy over the past 18 months.

We’re unsure how to proceed. Does anyone have advice on the best way to approach this situation? Are we better off negotiating further, looking for a new lender, or walking away?

Thanks in advance!

Albermarle

Not having building control sign off for the loft conversion is quite a concern.
Apart from not being able to call them bedrooms, they should not really be using them as bedrooms, as it might not be safe. Part of the building control regulations involve fire safety for example.

Also doing a loft conversion is a major structural building job, which affects the whole building, especially the roof.
If not done properly then........

I would be wondering why they did not get building control sign off at the time. 

Have you had a survey done ?

ButterCheese

Importantly - when was the work carried out to convert the 2 bedrooms in the loft?

I only ask because the same thing happened to us (as sellers).  The buyers' lender came back at the very last minute and said bedroom 4 in the loft was not habitable and didn't have a certificate.  We did some digging and our city planning issued us with a statement to say that certification wasn't even issued before 1996, and the conversion was done in 1984.  They sent a surveyor who looked around for 2 minutes and said "yes it's fine to be a bedroom". So we were then able to carry on selling as a 4 bed

BikingBud

Any room can be anything that they may wish to call it.

Clearly bathrooms and kitchens have facilities that determine their function but I would challenge anybody to determine what particular characteristics determine a "bedroom".

The issue with the loft conversion is that without building regulations compliance it cannot be deemed to be habitable and is therefore merely over-prepped storage space.

Reception rooms, lounges, parlours, dining rooms, day rooms are just living space into which bed(s) can be placed.

It is often easier to consider a bungalow where space is just there to be exploited and a room becomes a hobby room, a home office, a gym. 

If you are content with the space on offer at the price they would accept then the deal is done but I would always be wary about the temptation to use the space in the loft that might be boarded, plastered, carpeted and with electrical power as living space when current building regs have not been met.

That said many large terraced houses have legacy attics that likely may not have ever been assessed against any building regs.  

user1977

Adding or removing a bed from one of the downstairs rooms is not going to change the valuation.

Albermarle

ButterCheese said:

Importantly - when was the work carried out to convert the 2 bedrooms in the loft?

I only ask because the same thing happened to us (as sellers).  The buyers' lender came back at the very last minute and said bedroom 4 in the loft was not habitable and didn't have a certificate.  We did some digging and our city planning issued us with a statement to say that certification wasn't even issued before 1996, and the conversion was done in 1984.  They sent a surveyor who looked around for 2 minutes and said "yes it's fine to be a bedroom". So we were then able to carry on selling as a 4 bed

Family member recently bought a house that had major loft work carried out 40 years ago. There was a planning consent and associated drawings, but no building control sign off as it was not applicable then.
I asked on this forum and the consensus seemed to be that most areas did not really start with building control sign off until around 1990, but implementation was patchy, with some starting before then and some after.
The solicitor involved was also relaxed about the lack of BC sign off, and the surveyor said it seemed OK ( always cautious in their language) .

Bigphil1474

Plenty of good advice above. Yes, if it's been loft converted in the last 30 years ish, then lack of BC sign off is concerning. It's difficult to do retrospectively as well. Any surveyor saying it's fine is just guessing, you would need a structural engineer to determine whether the construction is safe. We walked away from a house we loved due to lack of BC sign off, although it had been done just 15 years ago. Don't forget you'll have the same problem when you come to sell.

We're in a 4 bed semi, with the 4 bedrooms upstairs, as is traditional. The neighbours which is up for sale, have essentially the same basic layout, but because their 4th bedroom was converted to an en-suite for the master, they use their second reception room downstairs as a 4th bed for selling purposes, currently used as an office. If the house has 3 reception rooms, can't see why it can't be designated as a 3rd bedroom. Either way, the conversion issues would concern me, and I'd be asking them to get retrospective sign off (regularisation?) or a new application in before doing anything. That would then appease your lenders, and happy days. Losing 2 bedrooms in a 5 bed/2 reception or 4 bed/3 reception rooms house would be worth more than £25k to me. 

We did sell our old house with a dormer conversion from the 1980s, but as it wasn't a structural concern it didn't cause any issues.