Solar panels, heat pumps and insulation in Victoria Park conservation area
In the Victoria Park conservation area (Hackney), 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. An Article 4 direction published by Hackney covers this area but deals with other things (such as changes of use); it does not change the rules below. The area has 17 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. 1,554 homes inside the boundary have an energy certificate: 70.7% are solid-wall homes with no wall insulation, 92.9% heat with a gas boiler and 54.0% are rated D–G; 11 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
1,554homes with an energy certificate
70.7%solid walls, no insulation
92.9%heated by a gas boiler
11heat pumps
Article 4: An Article 4 direction published by Hackney covers this area but deals with other things (such as changes of use); it does not change the rules below. (A4D Non-residential to residential; Lauriston Road Local Shopping Centre; London borough of Hackney)
What needs planning permission in Victoria Park
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: 17 in the area (grade I: 0, II*: 2). 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: 69% 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 = 1,554)
Walls
Homes
Share
Solid wall (brick or stone), no insulation
1,099
70.7%
Cavity wall, insulated (as built or unspecified)
138
8.9%
Cavity wall, filled
70
4.5%
Cavity wall, unfilled
70
4.5%
Modern wall (U-value from the design)
57
3.7%
Other or not known
38
2.4%
Cavity wall, partly insulated
22
1.4%
Solid wall, insulated
22
1.4%
Solid wall, internal insulation
16
1.0%
Timber frame
13
0.8%
Solid wall, partly insulated
9
0.6%
Heating
Homes
Share
Gas boiler
1,444
92.9%
Electric (storage heaters, panels, boiler)
61
3.9%
Communal heating
37
2.4%
Heat pump
11
0.7%
LPG
1
0.1%
Loft / roof insulation
Homes
Share
No insulation
259
16.7%
Under 200 mm
270
17.4%
200 mm or more
160
10.3%
Insulated (depth not recorded)
174
11.2%
Flat or other home above
643
41.4%
Other
48
3.1%
Windows
Homes
Share
Double glazed
1,038
66.8%
Single glazed
448
28.8%
Secondary glazing
66
4.2%
Triple glazed
2
0.1%
CDE
Energy rating: A 1 (0.1%) · B 56 (3.6%) · C 658 (42.3%) · D 661 (42.5%) · E 158 (10.2%) · F 14 (0.9%) · G 6 (0.4%). Houses and bungalows: 31% of the homes; solar panels on 0.2% of the certificates. Most common build period on the certificates: 1900-1929. Designated: 1 January 1977.
Compared with Hackney and England
Share of homes
Victoria Park
All 37 areas in Hackney
England
Solid walls, no insulation
70.7%
50.5%
48.7%
Gas boiler
92.9%
70.8%
66.4%
Rated D–G
54.0%
—
56.5%
Caveats
Certificates describe a home when it was assessed; 49% of these are from 2020 or later (latest 27 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 Hackney if in doubt.
Boundary: London Borough of Hackney via planning.data.gov.uk (entity 44016031, reference CA25, 48.4 ha); the council's appraisal or map. Homes are placed by the coordinates of their UPRN (OS Open UPRN); addresses are not shown.