Your situation
Plug-in solar for terraced houses
Plug-in solar for terraced houses: yard, rear wall and balcony options, the party-wall ban, conservation-area rules, and output compared.
PVGIS solar data
The numbers
Estimated yearly output of a typical 890 Wp kit (800W cap), from PVGIS solar data for each place. Get yours.
| Setup | London | Manchester | Edinburgh |
|---|---|---|---|
| South-facing, tilted 30° (yard or garden stand) | 899 kWh | 783 kWh | 795 kWh |
| South-facing, vertical (rear wall) | 661 kWh74% of the first row | 575 kWh73% of the first row | 607 kWh76% of the first row |
| East-facing, vertical (rear wall) | 464 kWh52% of the first row | 408 kWh52% of the first row | 405 kWh51% of the first row |
| West-facing, vertical (rear wall) | 444 kWh49% of the first row | 395 kWh50% of the first row | 399 kWh50% of the first row |
Terraced houses usually have a front wall on the street, a rear wall onto a yard or garden, and party walls either side. That narrows the options for plug-in solar: typically a stand in the yard or garden, a rear wall, or a back-extension roof. The rows above compare those options for your area.
Rules and permissions
No party walls. The DESNZ product specification says users must not fix panels to walls “that form a property boundary between dwellings” (IPS §8.3.2). In a terrace, that rules out the side walls you share with your neighbours. How it applies to a yard wall on the boundary isn’t spelled out; ask the kit’s manufacturer.
Cladding. No timber, ACM, MCM or HPL cladding (IPS §5.8).
Planning in England (SI 2026/896):
- Walls. Panels must stick out no more than 0.2 m from a wall facing a road, or 0.4 m from other walls. Not on wooden walls or timber-clad parts.
- Conservation areas. If your terrace is in a conservation area, nothing may go on a wall, balcony or roof enclosure that fronts a road, so a street-facing front wall is out. A stand-alone kit nearer the road than the house has a 2 m limit and needs prior approval.
- Yards and gardens. A free-standing kit within 5 m of a boundary can be up to 2 m high (1 m in front of the house’s main elevation), with a 9 m² panel area limit. Not on a wooden fence or gate.
- Listed buildings. Not permitted development on a listed house or within its grounds. Listed building consent may be needed (s.7).
We found no plug-in-specific planning change in Scotland or Wales; check with your council.
Permission. If you rent, ask your landlord first (IPS §8.3.1; DESNZ).
What to look for
- Shade in narrow yards. Terraced yards are often enclosed by walls, extensions and the house itself. Watch where the shadows fall across a day, and remember they’re longer in winter. Our figures assume open sky.
- Which side gets the sun. If the front faces the sun but you’re in a conservation area, or the front is on the road, the rear may still be the practical choice.
- A compact, adjustable stand. In a small yard, a stand you can angle and move is more flexible than a fixed wall bracket.
- A route to a socket. The plug must go straight into a fixed socket, with no extension lead. An outdoor socket must be IP55 or better (IPS §4.2.3, §6.2.3). A back door or kitchen window is often the easiest route.
- Neighbours. Panels on a yard wall or stand can be seen from next door. It helps to mention your plans, even when no permission is needed.