Solar panels, heat pumps and insulation in Vallance Road conservation area
In the Vallance Road 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. 285 homes inside the boundary have an energy certificate: 83.5% are solid-wall homes with no wall insulation, 96.5% heat with a gas boiler and 78.6% are rated D–G; 2 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
285homes with an energy certificate
83.5%solid walls, no insulation
96.5%heated by a gas boiler
2heat 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 Vallance Road
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: none recorded inside the boundary; on a listed building, solar panels and heat pumps are not permitted development and need listed building consent.
Flats: 26% 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 = 285)
Walls
Homes
Share
Solid wall (brick or stone), no insulation
238
83.5%
Cavity wall, unfilled
12
4.2%
Timber frame
12
4.2%
Cavity wall, insulated (as built or unspecified)
10
3.5%
Solid wall, internal insulation
4
1.4%
Cavity wall, filled
3
1.1%
Solid wall, external insulation
3
1.1%
Cavity wall, partly insulated
1
0.4%
Solid wall, insulated
1
0.4%
Solid wall, partly insulated
1
0.4%
Heating
Homes
Share
Gas boiler
275
96.5%
Electric (storage heaters, panels, boiler)
5
1.8%
Heat pump
2
0.7%
LPG
2
0.7%
Communal heating
1
0.4%
Loft / roof insulation
Homes
Share
No insulation
86
30.2%
Under 200 mm
71
24.9%
200 mm or more
36
12.6%
Insulated (depth not recorded)
51
17.9%
Flat or other home above
41
14.4%
Windows
Homes
Share
Double glazed
248
87.0%
Single glazed
24
8.4%
Secondary glazing
10
3.5%
Triple glazed
3
1.1%
CDE
Energy rating: B 5 (1.8%) · C 56 (19.6%) · D 139 (48.8%) · E 71 (24.9%) · F 11 (3.9%) · G 3 (1.1%). Houses and bungalows: 74% of the homes; solar panels on 0.7% of the certificates. Most common build period on the certificates: 1930-1949. Designated: 10 November 2008.
Compared with Haringey and England
Share of homes
Vallance Road
All 38 areas in Haringey
England
Solid walls, no insulation
83.5%
66.4%
48.7%
Gas boiler
96.5%
80.1%
66.4%
Rated D–G
78.6%
—
56.5%
Caveats
Certificates describe a home when it was assessed; 46% of these are from 2020 or later (latest 29 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 44014366, reference CA29, 19.9 ha); the council's appraisal or map. Homes are placed by the coordinates of their UPRN (OS Open UPRN); addresses are not shown.