What does a commercial EV charging site survey check?

A commercial EV charging survey checks your electricity supply, parking layout, cable routes, accessibility and proposed charging use before a design and quotation. Ask for a written record of findings and unresolved permissions. HSE identifies 3 elements of safe excavation, including locating buried services, so a visual walkover alone cannot settle the digging plan [S3]. Checked October 2026.

Last checked 16 October 2026

What is included in a commercial EV charging site survey?

Start with what your vehicles and visitors need, then test whether your site can support it. The network operator’s business guidance starts with vehicle and charger requirements before connection assessment [S1]. Use your survey to turn that brief into a marked layout, an electrical assessment and a list of unresolved work.

Tell the surveyor who will charge, when they arrive and how long they stay. Bring opening hours, fleet departure times and any parking restrictions. Ask the designer to explain how the proposal serves those patterns, rather than choosing equipment by its headline rating. Read the dwell-time guide before preparing your brief.

What should your site survey checklist contain?

Use this as a request for evidence, rather than a certificate that your site is ready:

Why are site surveys important before choosing charger power?

The connections process considers maximum demand across your whole premises, including the proposed chargers. It also addresses supply equipment, earthing and agreed import capacity [S9]. Ask the surveyor to distinguish what has been measured, what comes from records and what still needs confirmation.

Kilowatts (kW) measure power; kilowatt-hours (kWh) measure energy. Ask for both the charging power available at busy times and the energy your vehicles need during their stay. Record planned changes, such as electric heating or more fleet vehicles, so the designer can assess them alongside charging [S9].

Your distribution network operator (DNO) runs the local electricity network. An installer survey and a DNO connection decision are separate steps: the DNO may need to assess the connection and quote for network work [S1]. See how much power your site has and load management versus a grid upgrade.

If solar PV or battery storage is also proposed, include it in the brief. Ask which generation connection process applies. G99 is an engineering recommendation governing relevant generation connections to the network; the ENA process flags it for relevant solar, storage and vehicle-to-grid proposals [S2]. Do not treat charging import capacity as confirmation of export permission.

How should you prepare your parking and cable-route survey?

Walk the proposed route from the electrical intake to each charging area. Identify delivery movements, pedestrian routes and places where excavation would interrupt trading. HSE describes safe excavation through planning, locating and identifying buried services, and safe digging [S3]. Request a separate allowance for investigation where records or ground conditions remain uncertain.

Ask for a drawing showing existing bays, proposed charging bays and equipment footprints. Have the surveyor mark any spaces affected by cabinets, protective barriers or construction access. Request a staging plan that keeps your essential deliveries and accessible routes usable during the works.

Check the layout from a driver’s perspective. Government design guidance covers cable reach, space for different mobility needs, usable controls, trip hazards and lighting [S4]. Try the proposed approach on foot, including the route from the bay to your entrance. Ask how cables will be stored and how maintenance staff will reach equipment. Use the accessible charging guide alongside the drawing.

What permissions and public-access checks belong in the report?

Ask the report to identify the planning route, rather than recording only that chargers fit in the car park. In England, permitted development rights cover certain off-street chargepoint installations, subject to conditions and limitations [S5]. Check your proposal with the planning authority; do not assume the same route applies elsewhere in the UK. Check leases, cable-route rights and consent requirements with your solicitor.

Decide whether charging will be restricted to staff or available to customers and visitors. Government guidance explains that public-access status affects regulatory duties, even on privately owned land [S6]. Ask your solicitor to check the proposed operating arrangement.

For paid public charging, the guidance requires contactless payment for new chargepoints rated at 8 kW or above deployed after 24 November 2024. Free charging is outside that contactless requirement [S6]. Include payment equipment and communications in the design brief. Read the public chargepoint checklist before accepting the scope.

How much does a commercial EV charging site survey cost?

Treat the survey fee as a scope question. Request a written price stating whether it includes a visit, electrical assessment, drawings, service detection and connection-application support. Ask which follow-up investigations are excluded. The technical process requires supply assessment, and HSE identifies service-location work as part of safe excavation planning [S9], [S3]; establish which work your fee buys.

Separate survey costs from charger installation, network work and ongoing operation. For grant budgeting, the Workplace Charging Scheme has been extended until 31 March 2027, subject to its eligibility and claim conditions [S7]. HMRC describes a 100% first-year allowance for qualifying new charging equipment, with expenditure deadlines of 31 March 2027 for Corporation Tax and 5 April 2027 for Income Tax [S8]. Check with your accountant; neither figure is a deduction to apply automatically to a survey quotation.

What should you do next?

Take your parking plan, electricity records and charging brief to the survey discussion. Ask for itemised findings, unresolved decisions and responsibility for the next action. Compare fully funded, part funded and self funded options using the same surveyed scope.

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