Solar Panel Installation
in North London

Haringey is where the “conservation area means no solar” assumption does the most damage, because the borough’s own list does not support it. Haringey has 28 conservation areas and exactly four of them carry an Article 4 direction: Noel Park, Peabody Cottages, Rookfield and Tower Gardens. Highgate and Muswell Hill — the two Haringey areas people most often expect to be locked down — are conservation areas with no Article 4 direction attached, which means national permitted development still applies to them. What then governs is paragraph A.1(2)(e) of the amended Part 14: in a conservation area, equipment on a wall, a balcony or a roof enclosure that fronts a highway is not permitted development. A roof slope is not caught by that wording, so a rear-slope array on a Muswell Hill semi is frequently still permitted development. Two caveats worth stating plainly: Highgate’s conservation area straddles the Camden and Haringey boundary, so establish which borough decides before relying on either borough’s map, and where an Article 4 direction does apply it removes only the rights it names — Haringey presents its conservation-area directions as managing works such as window and door alterations, so the direction itself should be read rather than assumed to cover panels.

Hampstead Garden Suburb is the one address in North London where a Barnet planning approval alone is worthless: the Suburb carries an Article 4 direction (so Permitted Development does not apply and solar needs a full planning application), AND every external change also needs separate written consent from the Hampstead Garden Suburb Trust under its Scheme of Management — a distinct freeholder body that routinely refuses visible panels on principal pitched roofs. Realistic installs there are on concealed rear slopes or outbuildings.

Barnet operates one of London's widest Article 4 nets — the borough lists roughly 48 designated conservation areas, with the tightest solar controls in Hampstead Garden Suburb, Finchley Church End, Monken Hadley and Totteridge. Outside those pockets, the borough's dominant 1930s semis (Whetstone, Woodside Park, Finchley) generally install under Permitted Development on rear and side slopes with no application at all.

Camden has publicly consulted on removing its Article 4 solar restrictions so residents could fit panels anywhere on a roof without planning permission, to accelerate its climate-emergency targets. Until that change is formally adopted, conservation areas such as Highgate, Camden Square and Holly Lodge Estate still require rear-slope, flush-mounted panels — so the current borough position should be confirmed before design.

Every N and EN postcode sits within UK Power Networks' distribution area, so battery systems and larger arrays need a G99 application to UKPN before commissioning, while smaller systems (broadly up to 3.68kW/16A per phase) run on a G98 notification. On London's dense, older network, UKPN sometimes requires an export limit — a design step generic national firms often miss.

The Victorian and Edwardian terraces that dominate Haringey, Islington and southern Camden almost always solar on the rear roofslope — which also suits conservation areas (e.g. Islington's Whitehall Park, Highgate), where Article 4 Directions can remove permitted development rights for street-facing changes. All-black flush panels on the hidden rear pitch typically clear both the roof geometry and the heritage rules at once.