British Homes / All types
Purpose-built Flat
Less fabric in your control than any other archetype; the right upgrades focus on air, light and comfort rather than the building envelope.
How you'll recognise yours
- Shared front door and stairwell or lift
- Limited external walls
- Communal heating or hot water in some blocks
- Restrictions on what you can change outside
The fabric in numbers
- Era
- Mid-century to present
- Walls
- Shared with neighbours, limited external wall area
- Roof
- Communal; rarely under the occupier's control
- Typical EPC
- C
- Typical loft
- 0mm
- Default glazing
- Modern double glazing
Common issues
- Overheating from neighbouring flats and shared corridors
- Limited control over the heating system
- Restrictions on external changes such as cladding or solar
- Mechanical ventilation that has lapsed over time
Projects that suit
- Internal comfort upgrades that need no consent
- Quiet, slim heat-recovery units
- Smart controls on existing heating
- Portable or split cooling subject to landlord consent
How well each upgrade fits
Heat pump
Limited fit
Solar
Limited fit
MVHR
Moderate fit
Cooling
Moderate fit
EV charging
Limited fit