Solar panels, heat pumps and insulation in Stroud Green conservation area
In the Stroud Green conservation area (Haringey), external wall insulation needs planning permission, and so does an air source heat pump on a wall or roof facing the road; one at the back or side, internal and loft insulation and solar panels on a roof slope normally do not. The area has 2 listed buildings; on a listed building solar panels and heat pumps are not permitted development at all and need planning permission and listed building consent. 2,418 homes inside the boundary have an energy certificate: 80.6% are solid-wall homes with no wall insulation, 90.3% heat with a gas boiler and 54.4% are rated D–G; 13 have a heat pump. EPC register November 2026; rules as at 21 October 2026.
Data: EPC register November 2026 (latest certificate per home), conservation area boundaries 3 November 2026, permitted development rules as at 21 October 2026 · calculated 5 November 2026 · Methodology and sources
2,418homes with an energy certificate
80.6%solid walls, no insulation
90.3%heated by a gas boiler
13heat pumps
Article 4: Haringey publishes its Article 4 areas on planning.data.gov.uk and none overlaps this area; a direction can still exist on paper, so check with the council.
What needs planning permission in Stroud Green
Work (house, not listed)
In a conservation area
Rule
Air source heat pump on a wall or roof facing the road, or nearer the road than the house
Planning permission needed
Part 14 Class G, G.1(j)
Air source heat pump at the back or side (outdoor unit up to 1.5 m³, MCS Planning Standards, one per house — two on a detached house)
No permission needed (permitted development)
Part 14 Class G
Solar panels on a pitched roof (up to 0.2 m proud, not above the ridge)
No permission needed (permitted development)
Part 14 Class A, A.2(c)
Solar panels on a wall, balcony or roof enclosure facing the road
Planning permission needed
Part 14 Class A, A.2(e)
Solar panels on a flat roof (up to 0.6 m above the roof)
Replacement windows and doors of similar appearance
No permission needed (permitted development)
Part 1 Class A, A.3(a)
Listed buildings: 2 in the area. The table is for houses that are not listed: on a listed building, solar panels and air source heat pumps are not permitted development at all (they need planning permission), and any of these works needs listed building consent.
Flats: 79% of the certified homes here are flats or maisonettes. Homes in a block of flats have no householder rights for alterations; heat pumps and solar have their own, tighter rules for blocks of flats.
The homes in the area (latest certificate per home, n = 2,418)
Walls
Homes
Share
Solid wall (brick or stone), no insulation
1,948
80.6%
Timber frame
96
4.0%
Cavity wall, insulated (as built or unspecified)
93
3.8%
Modern wall (U-value from the design)
80
3.3%
Cavity wall, unfilled
76
3.1%
Cavity wall, filled
40
1.7%
Solid wall, internal insulation
31
1.3%
Solid wall, insulated
16
0.7%
Cavity wall, partly insulated
13
0.5%
Other or not known
9
0.4%
Solid wall, partly insulated
8
0.3%
Cavity wall, internal or external insulation
4
0.2%
Solid wall, external insulation
4
0.2%
Heating
Homes
Share
Gas boiler
2,184
90.3%
Electric (storage heaters, panels, boiler)
141
5.8%
Communal heating
77
3.2%
Heat pump
13
0.5%
LPG
3
0.1%
Loft / roof insulation
Homes
Share
No insulation
456
18.9%
Under 200 mm
305
12.6%
200 mm or more
136
5.6%
Insulated (depth not recorded)
217
9.0%
Flat or other home above
1,232
51.0%
Other
72
3.0%
Windows
Homes
Share
Double glazed
1,798
74.4%
Single glazed
586
24.2%
Secondary glazing
28
1.2%
Triple glazed
6
0.2%
CDE
Energy rating: A 1 (0.0%) · B 45 (1.9%) · C 1,057 (43.7%) · D 1,025 (42.4%) · E 245 (10.1%) · F 33 (1.4%) · G 12 (0.5%). Houses and bungalows: 21% of the homes; solar panels on 0.2% of the certificates. Most common build period on the certificates: 1900-1929. Designated: 10 June 2003.
Compared with Haringey and England
Share of homes
Stroud Green
All 38 areas in Haringey
England
Solid walls, no insulation
80.6%
66.4%
48.7%
Gas boiler
90.3%
80.1%
66.4%
Rated D–G
54.4%
—
56.5%
Caveats
Certificates describe a home when it was assessed; 51% of these are from 2020 or later (latest 26 October 2026). “No insulation (assumed)” is the assessor's default for older walls.
The rules are England's national permitted development rules (General Permitted Development Order 2015, Schedule 2, as at 21 October 2026). They do not cover building regulations or a council's own conditions. This is not a planning decision: ask Haringey if in doubt.
Boundary: London Borough of Haringey via planning.data.gov.uk (entity 44014362, reference CA28, 72.6 ha); the council's appraisal or map. Homes are placed by the coordinates of their UPRN (OS Open UPRN); addresses are not shown.