EV Charger Installation London 2025: Smart Chargers, Planning, Grants, and Costs

**The mandatory smart charger requirement**:

Since 30 June 2022, all EV charge points sold and installed for domestic use in Great Britain must meet the 'smart' charge point requirements under the Electric Vehicles (Smart Charge Points) Regulations 2021. A smart charge point must:

• •Be capable of **demand-side response** — the ability to receive and act on a signal to vary the charge rate or pause charging (to allow network operators to manage grid demand peaks)
• •Have a built-in **scheduler** — allowing the user to programme charging for off-peak hours (typically overnight, when electricity unit rates are lower on time-of-use tariffs)
• •**Meter and record** energy consumed per charging session
• •Be capable of **receiving firmware updates** over-the-air (OTA) to remain compliant with future requirements
• •Comply with **OCPP** (Open Charge Point Protocol) or an equivalent interoperability standard

In practice, all charge points sold by mainstream manufacturers for domestic installation in the UK (Pod Point; Ohme; myenergi Zappi; Wallbox; Easee; EO Charging; Rolec; Andersen) already comply with the smart charge point regulations — they are all smart chargers by design. The regulation primarily affected older 'dumb' chargers that simply drew maximum power at all times — these can no longer be sold or installed as new domestic units.

*Why this matters commercially*: if an EV charger installer quotes you for a 'basic' unit without scheduling, demand response, or app control, ask them to confirm it complies with the 2021 smart charge point regulations. Non-compliant chargers should not be installed.

**The Electric Vehicle Homecharge Scheme (EVHS) grant — the successor to the OLEV/OZEV grant**:

*Current position (2025)*: the EVHS grant is the Office for Zero Emission Vehicles (OZEV) government grant that provides financial support for the installation of a smart EV charger at a domestic dwelling. The EVHS grant:

*Grant amount (2025)*: **£350** towards the cost of purchasing and installing a smart EV charge point at an eligible property. The £350 is deducted from the installer's invoice — the customer pays the balance; the installer claims the £350 from OZEV.

• *EVHS eligibility conditions (2025)*:
• •The applicant must own an eligible electric or plug-in hybrid vehicle (PHEV) — the vehicle VIN or V5C reference must be provided at application. Applicants awaiting delivery of a vehicle on order can also apply.
• •The charge point must be installed at the applicant's home — the EVHS does not cover charge points at rental properties (the landlord or employer cannot claim), with the exception of approved flat owner associations with dedicated parking.
• •The property must have **off-street parking** — either a driveway, garage, or allocated parking bay that is part of the property. EVHS does not fund charge points installed in public roads, on street furniture, or without off-street parking.
• •The installer must be **OZEV-approved** — only installers on the OZEV-approved list are eligible to process EVHS grants. Installers must be NICEIC or NAPIT registered and have completed OZEV-approved EV training.
• •One grant per property (not per vehicle) — if there are two EV owners at the same address, only one grant applies per installation.

• *Grant eligibility for London properties*:
• •Houses with driveways: eligible if the applicant owns an eligible EV/PHEV
• •London flats (purpose-built or converted): EVHS for flats requires the installer to confirm the installation meets specific EVHS flat installation criteria — this is more complex and is covered under the 'EVHS for Landlords' and 'EV Infrastructure Grant for Residential Car Parks' schemes, which are separate from the domestic EVHS
• •Properties without off-street parking (the majority of London Victorian terraces on streets without driveways): not eligible for EVHS — no grant available

*What the £350 grant actually covers in 2025 context*: with installation costs for a 7kW domestic smart charger running at £700–£1,100 in London, the £350 grant covers approximately 30–50% of a typical installation. It is a meaningful reduction but does not make EV charging infrastructure free.

**The single most important choice: 7kW or 22kW?**

The charge power of an EV charger is measured in kilowatts (kW). For a domestic installation in London, the practical choice is almost always **7kW** — for the following reasons:

• *7kW (single-phase; 32 amps)*:
• •The most common domestic EV charger specification in the UK
• •Requires a **single-phase electricity supply** — which is standard for virtually all London residential properties (a single-phase 230V supply rated at 100A, which is the current standard domestic supply cut-out fuse size)
• •Charges a typical 60–90 kWh EV battery from 20% to 80% charge in approximately 6–9 hours — overnight charging (plugging in at 11pm; full by 7am) easily achievable with a 7kW charger
• •Installation is straightforward: a new 6mm² (or 10mm² for longer cable runs) dedicated circuit from the consumer unit to the charger, with appropriate MCB protection at the consumer unit
• •The charger unit itself draws 32A from the supply — within the capacity of a standard 100A main fuse for most houses (provided the other loads on the supply at the same time do not push the total draw close to 100A; smart charging scheduling prevents this by shifting the EV charge to periods of low household load)

• *22kW (three-phase; 32 amps per phase)*:
• •Requires a **three-phase electricity supply** — which is NOT standard for most London residential properties. Three-phase residential supply is common in commercial premises; is available in some blocks of flats with three-phase incoming supply; but is almost never the standard supply for a London Victorian or Edwardian terrace house
• •**Upgrading from single-phase to three-phase** requires a DNO (Distribution Network Operator; UK Power Networks for most of London) supply upgrade — UK Power Networks charges approximately **£3,000–£6,000+** for a single-phase to three-phase upgrade at a residential property, with lead times of 3–6 months
• •Three-phase upgrade cost makes 22kW domestic charging economically difficult to justify for most London houses — the charging speed benefit (22kW charges a 90kWh battery in approximately 4 hours vs. 7kW in approximately 10 hours) is only useful if the car will be charged for short periods during the day rather than overnight
• •**Most EVs sold in the UK are only capable of single-phase on-board charging**: the on-board charger in the vehicle limits AC charging speed regardless of the charger's output. Only a minority of vehicles (e.g., Renault Zoe 22kW on-board charger; some commercial vehicles) can charge at 22kW AC from a three-phase supply

*Summary for a London home*: specify a 7kW smart charger unless the property already has a three-phase supply AND the specific EV model supports 22kW AC charging. Upgrading the supply to three-phase for domestic EV charging is not cost-effective for most London houses.

**Tethered vs. untethered charge points**:

*Tethered*: the charge cable is permanently attached to the charge point. To charge, the driver plugs the tethered cable into the car's Type 2 socket. The cable is always with the charger — no risk of leaving the cable in the car when it is needed for charging. Slight disadvantage: the permanently attached cable is exposed and can be vandalized or stolen; also unsuitable for vehicles with non-Type 2 sockets (rare in current EVs; all modern EVs use Type 2 as standard AC socket in the UK)

*Untethered*: the charge point has a Type 2 socket into which any standard Type 2 cable is plugged. The driver stores their own cable in the car. The untethered socket has no protruding cable when not in use — a tidier installation. Slight disadvantage: requires the driver to remember to bring their cable from the car to the charger; more useful for multi-user installations (workplaces; car parks) where different cables may be used.

*For a London single-user domestic installation*: tethered is more convenient. The cable is always at the charger, always the right type, and connecting the car takes 3–5 seconds.

**Popular smart EV charger models for London domestic installation in 2025**:

*myenergi Zappi*: the charger most commonly specified for London homes with solar PV panels, because the Zappi has a built-in solar divert mode — when the PV system is generating more electricity than the home is consuming, the Zappi automatically uses that surplus solar electricity to charge the EV (rather than exporting it to the grid at a low export tariff). Available in 7kW. Excellent app and smart home integration. Typical supply cost (2025): £650–£850 ex-installation.

*Pod Point Solo 3*: the most widely installed domestic EV charger in the UK. Simple, reliable, OZEV-approved. 7kW. App control for scheduling. Tethered or untethered options. Typical supply cost: £450–£650.

*Ohme Home Pro*: integrates with smart electricity tariffs (Octopus Agile; Octopus Go; EDF EV Overnight) to automatically charge the EV during the cheapest electricity periods. Useful for drivers on time-of-use tariffs who want automatic overnight charging optimisation without manually scheduling charge times. Typical supply cost: £400–£550.

*Wallbox Pulsar Plus*: compact, stylish, app-controlled. Available in 7kW. Suitable for tight installation locations. Typical supply cost: £400–£600.

*Andersen A2*: premium design-led charger for clients who want the charge point to be a design feature of the driveway. Available in wood-finish, stainless, and powder-coat options. Typical supply cost: £1,200–£1,800 — notably more expensive than functional equivalents; the premium is entirely in the aesthetics.

**The electrical installation — what a 7kW home EV charger installation involves**:

*The typical EV charger installation for a London terrace house*:

1. **Assessment of the existing consumer unit (fuse board)**: the electrician checks that the consumer unit has capacity for a new dedicated 32A circuit for the EV charger. Most modern consumer units (installed or replaced within the last 15 years) have spare ways for additional MCBs. Older consumer units (fuseboard with rewirable fuses or cartridge fuses) may need replacing with a modern RCBO-protected consumer unit before the EV charger circuit is installed. Consumer unit upgrade: £400–£800 additional cost where required.

2. **Cable route from consumer unit to charger location**: a new 6mm² (for runs up to approximately 15m) or 10mm² (for longer runs) twin-and-earth cable or SWA armoured cable (for external underground runs) is run from the consumer unit to the charger position. The typical London terrace installation runs cable from the consumer unit (usually in the hall or cupboard under the stairs) through the property and out to the garage or driveway wall. Cable route through walls: surface-mounted in steel conduit or concealed in the wall; the electrician's preference and the client's aesthetic preference determine the route.

3. **Cable containment and protection**: any cable run in an external wall, through masonry, or underground must be in appropriate containment (conduit; SWA armoured). Underground cable runs across a driveway or to a garage must be buried at a minimum depth of 450mm under reinforced concrete areas or 600mm under unprotected ground, per the NICEIC/IET guidance.

4. **Charger mounting**: the charger unit is wall-mounted at approximately 750–900mm above finished ground level on the driveway wall, garage wall, or other appropriate surface. The charger must be positioned to allow the vehicle charge cable to reach the car's charge socket from the charger without strain — typically no more than 5m tethered cable length is needed for a driveway where the car parks nose-in.

5. **DNO notification**: for some EV charger installations (particularly 22kW or where the house supply is close to its capacity), UK Power Networks (or the relevant DNO) must be notified before installation. For most standard 7kW installations, DNO notification is automatic through the EVHS grant process — the installer notifies UKPN as part of the EVHS grant claim. In non-grant installations, the installer must check whether DNO notification is required.

6. **Part P compliance and certification**: EV charger installation is a **notifiable electrical installation** under Part P of the Building Regulations — it constitutes a new circuit. This means it must either be notified to Building Control (who will then inspect it), or it must be installed by a Part P registered electrician who self-certifies the work. In practice, almost all EV charger installation companies use NICEIC or NAPIT-registered electricians who self-certify — this avoids the need for a Building Control inspection and provides an EIC (Electrical Installation Certificate) which is the evidence of compliance. The EIC is required for property sales — ensure you receive it from the installer.

**Planning permission for EV chargers in London — when is it required?**

*Standard residential driveway (not conservation area; not listed building)*:

A wall-mounted EV charger on a residential property in England is almost always Permitted Development — no planning permission is required. The charge point is a small piece of electrical equipment mounted on a wall; it does not constitute a development that requires planning permission under the Town and Country Planning Act 1990 in a standard residential context.

*Conservation area*:

• In a conservation area, the position changes slightly. The GPDO provides Permitted Development rights for 'EV charging points' on dwellings, including in conservation areas, provided:
• •The charge point and its housing (the box unit) must not exceed 0.2m³ in volume
• •The installation must not be on a wall that fronts a highway
• •Not more than one charging point per off-street parking space

In practice, for a charge point installed on the side wall of a house in a conservation area where the charge point is not on the highway-facing elevation — PD rights apply. For charge points on the front elevation facing the street in a conservation area: the 'not on a wall that fronts a highway' condition applies. A charge point on the front wall of a London Victorian terrace in a conservation area, where the front wall faces the street (the highway) is NOT PD — it requires planning permission.

*Resolution*: in conservation areas where the front wall faces the highway (very common for London terraces where the front door opens directly onto the pavement), install the charge point on the side return wall; the boundary wall (if substantial brick); or inside the garage. If the property has no side access and no garage, a Section 73A application for a front-wall charge point in a conservation area is typically straightforward and quickly approved — conservation officers generally accept EV charge points as permitted in principle.

*Listed buildings*:

For listed buildings, any drilling into listed external masonry for charger fixings or cable entry requires Listed Building Consent (LBC). The LBC application for an EV charger on a listed building is a minor LBC and typically carries no fee. However, the application must be made and approved before the charger is installed — install first and apply retrospectively is not recommended.

**2025 EV charger installation costs for London residential properties**:

| Scope | Cost range 2025 (London) | |---|---| | 7kW smart charger supply (mid-range model: Pod Point; Wallbox; Ohme) | £400–£700 supply only | | 7kW smart charger supply and install (simple run; existing CU with spare ways) | £700–£1,100 total | | After EVHS grant (£350 deducted at installation) | £350–£750 net | | Consumer unit upgrade (where required before EV charger install) | £400–£800 additional | | External SWA cable trench to garage (up to 15m underground) | £200–£600 additional | | myenergi Zappi with solar PV integration (supply + install; no grant for Zappi) | £1,100–£1,600 | | 22kW charger supply + install (where 3-phase supply already exists) | £800–£1,400 | | DNO 3-phase upgrade (single-phase to 3-phase; UK Power Networks) | £3,000–£6,000+ | | Andersen A2 premium design charger supply + install | £1,700–£2,500 |