Solar panels in Lewisham: Planning Permission Guide

A guide to installing solar panels in Lewisham — permitted development rules, costs, and what to consider.

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Solar panelss in Lewisham at a glance

£258

application fee

8

weeks typical

Lewisham has conservation areas in Blackheath, Telegraph Hill, Brockley, Lee Manor, and Forest Hill. Article 4 Directions restrict window and door alterations in several Victorian conservation areas. The borough mixes dense inner-city housing in the north with more suburban character in the south. Flood zones along the Ravensbourne and Quaggy rivers restrict outbuilding classes for riverside properties.

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Permitted Development Rules

Covered under Part 14 of the GPDO, not Part 1. Usually permitted with some restrictions.

Solar panels are covered under Part 14 of the GPDO (not Part 1). They are usually permitted development for houses, with some restrictions on listed buildings, conservation areas, and the position on your roof.

Typical Costs in London

Solar panel costs have decreased significantly in recent years. A typical residential system is now affordable for most homeowners.

Solar panelsLondon

Typical total

£5,000£12,000

Typically includes

PanelsInverterInstallationScaffoldingElectrical connection

Typically excludes

Battery storagePlanning application fee

For a typical 3–4kW residential system. Battery storage adds £2,000–£5,000.

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Which Professionals Do You Need?

Solar panel installation is handled by specialist installers. MCS-certified installers can self-certify Building Regulations compliance.

This project is unlikely to need specialist professional services beyond a competent builder.

Architect / designerNot needed

This type of project does not typically require architectural services.

Structural engineerNot needed
Party wall surveyorNot needed
Planning consultantNot needed

This guidance is based on a typical semi-detached house with no special constraints. Listed buildings, conservation areas, and attached properties may require additional professional input.

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Conservation Areas & Listed Buildings

In conservation areas, solar panels on a roof slope facing a highway may need planning permission. Panels on rear-facing slopes are usually permitted.

Conservation areas

Properties in conservation areas often have reduced permitted development rights. Some project types (like side extensions) lose PD rights entirely. An Article 4 Direction can remove additional PD rights.

Listed buildings

Listed buildings (Grade I, II*, or II) have no permitted development rights at all. Any external alteration requires Listed Building Consent in addition to any planning permission. An architect experienced in heritage work is essential.

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Frequently Asked Questions

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