Old Flat Conversion

[mk85]

Hi,

I converted a house into two self contained flats in 1980 with all the necessary planning consents and building regulations at that time. What additional work would i have to do get it the current standards or at least get it to the 1991 Building regulation Standards.

Thanks

 

[Fluffster]

It all depends on how you intend to use them ie rental/sale/owner occupier.

Rental is the biggest headache now with you having to be licensed if your property falls into a certain criteria.

The biggest revamp is in insulation noise, fire ,protection. The u values vary depending on new build/extension/refurbishment.

Gas outlets have been tightened up over the years which may see an 1980s install requiring updating esp balance flued boilers and open gas fires.

Electric showers now need higher levels of protection to include rcds double pole switches.

Your best course of action would be to contact your local building control for advice I find mine very helpful and informative and they love getting out of the office.
Pete

 

[mk85]

The First floor was sold on a long lease for 125 years in 1991 and the lessee himself lives there. I still own the ground floor flat but i rent it out.

What do u mean by U value?

Just for further info i'm planning on doin a single story ground floor extension to the rear of the flat. I'm also planning on installing a new combi boiler. At the same time i will refurbish the ground floor flat and i am thinking this is probabaly the best time to upgrade the flat conversion too to the new standards.

What would the necessary work include and what would be the approx costs of these works for example of:
Insulation for noise.
Fire Protection.

Considering the two flats are 2 bedroom and are in London.

 

[Fluffster]

If the top floor is already leased no requirement for any work by you unless structural roof etc it is down to the lessee, think I spelt it right.

As for costs too many variables without a site visit.

U values are the measurement of heat flow through any given combination of materials, air layers, and air spaces.
Basically nowadays you require alot of insulation so as not too lose heat through your walls roofs floors and windows.
Each area is given a u value which you must meet.

You are not looking at a massive investment however the thermal sheets are alot more expensive than simple plasterboard and mineral wool.
Pete