In a Finchley house that has been split into flats, the first thing a charger survey looks for is not a wall or a parking space. It is a meter, and the question of which one is yours. West Finchley and Finchley Church End have about twice Barnet’s share of households living in converted or shared houses, so on many N3 and N12 streets the answer is not obvious from the front door.
This guide deals with the supply side of fitting an EV charger in Finchley: what a charger asks of the electricity coming into your flat or house, when load management is enough, when the fuse changes, and what a looped supply means. Parking and consent come into it, but the supply is where a converted N3 or N12 house differs most from a Woodside Park semi with a drive.
Why Finchley’s converted houses start at the meter
At the 2021 Census, 17.7% of West Finchley households and 16.4% of Finchley Church End households lived in part of a converted or shared house, against 8.8% across Barnet borough. A further 40.4% of Finchley Church End households live in purpose-built flats. In a converted house each flat often has its own supply and meter, while the hallway, the forecourt and the cable route outside may belong to someone else.
That matters because a charger is designed around one supply. It takes its power from your consumer unit, behind your main fuse, and its load is measured against what that fuse can give. If the flat’s meter in a Church End conversion is in a cupboard at the back of a shared hall and the only parking is at the front, the survey has to find a cable route that stays on your supply and through parts of the building you are allowed to use.
What a charger asks of that supply
A 7 kW home charger draws 32 A continuously, or 7.4 kW at its full rate. Domestic main fuses are commonly 60 A, 80 A or 100 A. On a 60 A fuse, 32 A is a little over half the supply (our arithmetic), held for hours rather than minutes. Add an electric shower and an oven in a small West Finchley flat, and at teatime the total can exceed what the fuse is rated to carry. The survey also checks the earthing arrangement and the consumer unit, and confirms that the charger would hang off the flat’s own supply rather than a landlord’s or a neighbour’s circuit. Our guide on whether your fuse will take a 7 kW EV charger sets out each check in general terms.
Load management before a bigger fuse
The usual answer to a tight supply in a West Finchley or Church End conversion is load management. A current sensor on the incoming cable tells the charger how much of the fuse is in use, and the charger turns itself down while the shower runs, then ramps back up. In a converted house the sensor goes on your flat’s incoming supply, not the building’s, which is another reason the survey identifies the right meter first.
Where load management cannot fit the demand, the request goes to UK Power Networks, whose Eastern Power Networks area takes in Finchley town centre. UKPN says it can upgrade a main fuse from 30 or 60 A to 80 or 100 A. It also says that where an installer has applied to connect the device, a fuse upgrade may not be needed. If no upgrade is needed there is nothing to pay UK Power Networks; if one is, it says cost and timing vary from project to project.
Looped supplies
Some older houses share a single service cable with a neighbour, known as a looped supply. UK Power Networks says a looped supply has to be re-planned with both households before a charger is connected, and that the work may carry a charge. Whoever shares the loop has to be part of that conversation: in Finchley that may be the house next door or, in one of West Finchley’s converted houses, another flat in a building that was once one home. The survey checks the meter position for a loop, so that any network work is known before the rest of the job is quoted.
Which network, and who tells it
Finchley town centre sits in UK Power Networks’ Eastern Power Networks licence area, and the London Power Networks area begins further south. Both belong to UK Power Networks, and its postcode checker confirms which one serves your street. You do not contact it yourself: the installer notifies UK Power Networks of every new chargepoint. For a house or small premises up to 69 kVA whose supply can take the equipment, an approved installer can do that through UKPN’s Smart Connect service within 28 days of installation, and Smart Connect covers EV chargepoint forms.
Consent is a supply question too
In a converted Finchley house, the lease usually decides whether a cable can run through a shared hall or across a forecourt, so the freeholder’s consent sits alongside the electrical design. A tenant also needs the landlord’s agreement, which is a common step in Finchley Church End, where 37.4% of households rent privately (Census 2021). If you rent or own the flat and have a private or allocated space, the OZEV grant pays 75% of the cost of a chargepoint, up to £500 per socket, until 31 March 2027. The claim must be made through an OZEV-authorised installer; tell us your situation at the quote stage. Our guide to who qualifies for the EV chargepoint grant covers each route.
Where there is no off-street space at all, Barnet does not allow a cable from a home charge point across the footway, even with a cable cover, and points residents to its lamp column chargers, which it says take 8 to 12 hours to charge a car fully.
Before the survey
Plug-in cars are becoming more common across the borough: DVLA records 12,097 privately kept plug-in vehicles in Barnet at the end of June 2026, up from 10,089 a year earlier. If yours is one of them and you live in a Finchley conversion, a few details speed the survey up: where your meter and consumer unit are, where the car is parked overnight, and a copy of the lease clause on alterations. The quote should then show the charger, the circuit, the cable route and any load management as separate lines, as our EV charger installation cost guide explains. If you are also weighing battery storage in Finchley, one look at the supply can cover both.
Sources: ONS Census 2021, TS044 accommodation type and TS054 tenure, West Finchley (E05013648), Finchley Church End (E05013639) and Barnet (E09000003) via Nomis; UK Power Networks EV charging and fuse upgrade guidance and Smart Connect pages (as recorded in our RUN10 and RUN13 claims tables, read 12 and 15 October 2026); UK Power Networks Open Data licence boundaries (December 2024) and NESO GIS boundaries for GB DNO licence areas (May 2024); London Borough of Barnet, Electric vehicles in Barnet (read 19 October 2026); GOV.UK, Changes to electric vehicle chargepoint grant schemes from 1 April 2026 (updated 7 July 2026); DfT and DVLA, VEH0142 licensed plug-in vehicles by local authority, 2026 Q2 and 2025 Q2 (published 23 September 2026). Percentages of the fuse are our arithmetic.