Policy information sourced from Hammersmith & Fulham Planning Guidance

HS3 Internal space provision in residential conversions

Converted flats to provide for full self containment should have an internal area of at least 32.5 square metres where a separate bedroom is provided. Where a self-contained studio apartment or bedsitting room is provided there should be at least 25 square metres with a minimum living/sleeping area of 14 square metres.

The minimum net floor area of individual rooms within all converted self-contained residential units should be in accordance with the table below:

Internal Space Provision in Residential Conversions (All areas are given in square metres)
3 or more bedrooms (family unit)Less than 3 bedrooms (non-family unit)
Living room1512.5
Dining/Living room1614
Working kitchen7.55.5
Kitchen/Diner97.5
Main bedroom1212
Other double bedrooms10.2
Single bedroom6.56.5
Bathroom3.73.7

For more information please see the Hammersmith & Fulham Planning Guidance