How Much Does a Commercial EPC Cost in 2026?

A commercial EPC typically costs from around £120 for a small single shop or office suite up to £1,200 or more for a large, multi-zone or complex building. There is no fixed price because the fee is driven by floor area, the number of heating and cooling systems, the number of zones, the assessment level and site access. These are indicative market ranges to help you budget, not an official tariff, and any firm figure has to follow a look at the actual building.

That last point frustrates owners, understandably. When you can get a domestic EPC for a flat rate, being told “it depends” for a commercial one feels like a dodge. It is not. This guide explains exactly what the price depends on, so you can see why a corner shop and a distribution warehouse are not the same job, and spot when a quote is too cheap to be safe.

Indicative 2026 cost ranges by building type

The figures below are typical market ranges for a straightforward assessment of each building type. Treat them as a budgeting guide. A property with unusual complexity, difficult access or many separate services can sit above its band.

Building type	Typical assessment level	Indicative cost
Small shop, cafe or single office suite (under ~250 sqm)	SBEM Level 3	£120 – £300
Whole office floor / multi-zone office with air conditioning	SBEM Level 4	£250 – £600
Retail unit (single, simple)	SBEM Level 3	£120 – £450
Pub, restaurant or small hotel	SBEM Level 4	£250 – £900
Care home, surgery or clinic	SBEM Level 4	£300 – £1,000
Industrial unit or warehouse	SBEM Level 4	£250 – £1,200
Large distribution shed / complex building	Level 4 or DSM Level 5	£600 – £1,200+
Mixed-use (commercial floor only)	SBEM Level 3 or 4	£200 – £700

For a fuller per-sector breakdown, our commercial EPC cost guide sets out the ranges alongside the compliance context for each building type.

The five things that actually set the price

A commercial EPC fee is built up from the work involved, and five factors drive nearly all of it.

1. Floor area

More floor area means more to survey and more to model. This is the single biggest lever, and it is why a warehouse is not priced like a shop even before you consider its systems.

2. Number of heating and cooling systems

The assessor has to survey and model every heating, cooling and ventilation system. A building with one gas boiler is quick. A building with multiple boilers, air conditioning across several zones and mechanical ventilation is not.

3. Number of zones

SBEM models a building zone by zone, each with its own use, services and fabric. A single open-plan unit is one or two zones. A hotel with kitchens, dining, cellars and letting rooms, or a mixed office with server rooms and meeting suites, can be many. Each zone is more input and more modelling.

4. The assessment level required

This is the big step-change in cost, and it is set by the building, not chosen to inflate the fee.

• Level 3 (SBEM) covers smaller, simple premises with straightforward services, broadly under 250 square metres.
• Level 4 (SBEM) covers larger buildings, those with more sophisticated heating, cooling, ventilation and controls, and all new-build commercial regardless of size.
• Level 5 (DSM) is Dynamic Simulation Modelling for the most complex buildings, atria, automated blind or advanced HVAC controls that SBEM cannot model reliably. It uses specialist software and is the most expensive.

One correction worth making, because it circulates online: DSM is Level 5. A Level 4 assessment is still SBEM, just for a more involved building. We explain the difference in full in our guide to SBEM Level 3 vs Level 4 vs DSM.

5. Site access

The survey needs access to plant rooms, roof spaces and every zone. A building that is easy to access on one visit is cheaper than one where access has to be arranged across multiple trips or split tenancies.

Why the cheapest quote is often the most expensive

There is a temptation to take a remote, no-visit “EPC” advertised at a low flat rate. Be careful, because a commercial EPC is not a document you want to get wrong.

A legally valid non-domestic EPC must be produced by an accredited Non-Domestic Energy Assessor and lodged on the national register, and for anything beyond the very simplest building an accurate rating needs a proper survey of the fabric, the services and the zones. A rushed or remote assessment can under-state your rating, tipping a lettable building into a MEES problem, or over-state it, leaving the certificate open to challenge in a transaction. Because the EPC underpins a sale, a letting or your compliance position, a wrong rating can cost you far more than the survey ever would. On the specific stakes of an F or G outcome, see our guide on being rated F or G and how to fix it.

Is there any funding for the certificate?

No, and it is worth being clear about this. There is no grant or public funding for the EPC assessment itself, it is a professional service you pay for, produced by an accredited assessor. The gov.uk overview of commercial EPC requirements{rel=“noopener”} confirms the certificate is a cost of doing business.

Where funding exists, it is for the energy-efficiency improvements an EPC recommends, not the certificate. The Boiler Upgrade Scheme{rel=“noopener”} can help fund low-carbon heating where the report recommends it, and a 0% VAT relief applies to some qualifying energy-saving measures, though that relief is targeted at residential and charitable buildings and does not blanket-cover ordinary commercial premises. Our grants and funding routes page covers what genuinely applies and what does not.

Common questions

Why can’t you just give me a fixed price over the phone?

Because the honest answer needs a few facts about the building. Two shops of the same floor area can price differently once you factor in heating type, zones and access. We give a firm quote once we know the floor area, the broad building type, the services and the access, which takes minutes to establish and means the price you are quoted is the price you pay, rather than a headline that changes on site.

Does a more expensive EPC mean a better rating?

No. The fee reflects the work of assessing the building, not the outcome. A thorough Level 4 survey costs more than a quick Level 3 because there is more building to model, but the rating it returns is simply an accurate reflection of the building’s performance. What a proper survey does buy you is a rating that is right first time and stands up in a transaction, rather than a cheap one you cannot rely on.

Get a firm price for your building

The fastest way to a real number is to tell us the basics of the building, floor area, type, heating and access, and we will confirm the assessment level and a fixed price. To get an accurate, no-obligation figure for your premises, request a free commercial EPC quote and we will price it on the building in front of us, not a menu.