Fire rating the existing doors

A loft conversion has a impacts the rest of the house - mainly in fire prevention and protection.

fire doors to all the other rooms on your ‘escape route’ out in case of a fire..

Fire doors are the way to stop a fire and they’ll be needed on any door to a ‘habitable’ room.

Anywhere you’d normally spend some time

Bedrooms: yes. Kitchen, Lounge, and Dining rooms: yes. And offices.

But not Bathrooms, toilets, and storage areas.

Either way, replacing doors for fire doors is not hard, not expensive.

Do you have windows above the doors (called ‘fanlights’) on the first floor? If your staircase is central to your house then you probably do as these give some light to the stairwell and hallway so they’re not dark spaces.

If so, then they’ll also need to be replaced or removed.