Solar panels in Tower Hamlets: flats, London roofs and the Tower

Tower Hamlets is an unusual borough for rooftop solar. Most households live in flats, many of the remaining period houses sit in conservation areas, and the borough contains a World Heritage Site. None of that rules solar out, but it changes who makes the decision and what we check before we quote.

Most homes here are flats

Most Tower Hamlets households live in flats, and some of the borough's best-known blocks, such as Balfron Tower and the Lansbury estate, are conservation areas in their own right. Since 27 August 2026, blocks of flats have permitted development rights for solar for the first time. The right belongs to the block, so the freeholder or management company installs and applies, not an individual flat owner. If you own a flat and want solar, start with whoever manages the building. In a converted house, check your lease before assuming the roof is yours to use.

London roofs in Bow's conservation areas

The council has 58 conservation areas, including Tredegar Square, Driffield Road, Medway, Clinton Road, Ropery Street, Victoria Park, Stepney Green and Brick Lane and Fournier Street. In the Bow areas, most terraces were built with a London roof: a V-shaped "butterfly" roof hidden behind a front parapet, with two slopes falling to a central valley. These slopes are small and face each other, so panel layout and shading from the parapets need careful design. Our guide to checking whether your London roof is suitable for solar covers the main points.

Under the national rules, the restriction in a conservation area or World Heritage Site applies to panels on a wall fronting a highway, not to a roof slope. Panels on a pitched roof, including a front roof slope, are normally permitted development as long as they sit no more than 0.2 m proud of the roof and below the ridge. Since 27 August 2026, a flat roof in a conservation area needs a short prior approval application to the council first.

Many owners in these streets are also thinking about a mansard. In June 2025 the council adopted new mansard design guidelines for the five Bow conservation areas. They say panels may be acceptable on the rear slope of a mansard, fitted in line with the slate rather than on raised frames, and shown on the planning drawings. Because the mansard itself needs planning permission, it makes sense to plan any solar at the same time.

Spitalfields, listed buildings and the Tower of London

The council records 13 Grade I listed buildings in the borough, about 40 at Grade II* and around 2,000 at Grade II. Many are in the 18th century streets west of Brick Lane, where the conservation area guidance notes roofs of natural slate and states that concrete roof tiles will not be permitted. A listed building needs planning permission and listed building consent for solar. The Tower of London is a World Heritage Site, and Island Gardens on the Isle of Dogs forms part of the setting of Maritime Greenwich across the river.

Article 4 directions in Tower Hamlets

The council lists two Article 4 directions. One, in force since January 2021, removes the right to turn a house into a small house in multiple occupation. The other, in force since August 2022, removes the right to convert commercial premises to homes in parts of the borough. We read both: they deal only with changes of use and neither mentions solar or roof works. The conservation area appraisals we checked say the council will consider Article 4 directions but do not record any in force. Designations change, so we still check the position for your street before we quote. Our guide to planning permission for solar panels in London explains when an application is needed.

Connecting to the grid

UK Power Networks runs the local electricity network in Tower Hamlets and is adding capacity in the east of the borough. Most home systems are notified under G98 once installed. Larger systems, including some solar and battery combinations, need approval under G99 before connection. We handle the DNO paperwork, and our guide to DNO rules and export limits explains how system size affects the process.

If you live in Tower Hamlets and want to know whether your roof, or your building, can take solar, request a solar and battery quotation. We check the designations for your address before we quote and tell you plainly if planning permission, listed building consent or the freeholder's agreement is needed.

Local planning information checked against London Borough of Tower Hamlets sources on 27 October 2026. Planning designations change, so this is general guidance, not advice for a specific property.