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Level 3 & 4 Non-Domestic Energy Assessments

Fast, Compliant Commercial EPCs.

Don't let missing compliance hold up your lease or sale. We provide rapid Level 3 and Level 4 commercial energy modelling for UK properties, backed by digital data capture.

2027 MEES 'C' Target 2-Hour Quotes Lodged Nationwide

The Regulatory Cliff Edge

Is your commercial asset legally lettable in 2027?

The UK Government's Minimum Energy Efficiency Standards (MEES) are rapidly tightening. By April 2027, it will be illegal to grant a new lease — or continue an existing one — for any commercial property with an EPC rating below a 'C'. By 2030, that threshold rises to a 'B'.

Ignoring this doesn't just mean a slap on the wrist. Non-compliance carries fines of up to £150,000 (based on rateable value), absolute loss of rental income, and stranded assets that cannot be sold or refinanced.

The "Default Value" Trap

A cheap, rushed Level 3 EPC will use government "worst-case" default values for your HVAC and lighting. This artificially tanks your rating, forcing you to spend thousands on capital upgrades you might not actually need.

The Level 4 Solution

We conduct highly accurate Level 4 modelling using your actual mechanical data. Often, simply modelling the building correctly in iSBEM can bump a borderline 'D' rating up to a compliant 'C' without you spending a single penny on physical upgrades.

The CapEx Roadmap

If you do fall short, we don't leave you guessing. We use your EPC data to model exactly which upgrades (e.g., switching to LED vs. upgrading the VRF system) will achieve compliance most cost-effectively.

Why It Matters

Three reasons this is on your critical path.

Avoid MEES Penalties

Stay clear of local authority enforcement. An accurate, data-driven EPC protects your asset's lettability and ensures you are legally compliant for the 2027 'C' rating threshold.

Complex Building Approvals

Need Building Control sign-off? We provide rapid SBEM and Part L2 compliance calculations for new-builds, extensions, and commercial fit-outs.

Corporate ESG Ingestion

We don't just hand you a PDF. Because we are powered by High Digital, your EPC data can be piped directly into enterprise-grade ESG dashboards to map your decarbonisation roadmap.

Our Process

From quote to compliance in 5 steps.

01

Secure Data Drop

Upload your floor plans and O&M manuals via our secure B2B portal.

02

Guaranteed Quote

Our engine reviews your complexity and provides a quote within 2 hours.

03

Digital Site Survey

Our assessor visits your site using LiDAR and digital capture tools.

04

iSBEM Modelling

Accurate Level 3 or 4 thermal and HVAC modelling in government-approved software.

05

Certificate Lodged

Final compliance report issued and lodged on the national register.

0 hrs
Fixed-Quote Turnaround
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Complex Modelling
£0k
Avoidable MEES Fines
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Part L Compliance Rate

Our Approach

No Clipboards. No Delays.

Traditional surveying is slow, disruptive, and prone to manual data entry errors. We operate differently. EnergySurvey.io was built by High Digital, an established PropTech and decarbonisation software agency.

We utilise digital geometry capture and mobile workflows on-site. This means less time disrupting your tenants, faster turnaround times on your final SBEM calculation, and absolute precision in your reporting.

Fixed Quotes in 2 Hours

Drop your floor plans into our portal and get immediate pricing.

Level 3 & 4 Accredited

Equipped to handle complex centralised HVAC, VRF, and BMS.

Frictionless Intake

No long email chains. Upload, approve, and we handle the rest.

Actionable Data

We tell you exactly which CapEx upgrades will improve your rating.

Client Feedback

Trusted by facilities and ESG teams across the UK.

EnergySurvey.io took our portfolio of 14 office assets from a compliance liability to a board-ready decarbonisation roadmap in under a month. The ESG dashboard alone has changed how we plan CapEx.

James Ashworth
Head of Sustainability, Northvale REIT

The Level 4 modelling rescued a borderline 'D' rated retail asset and pushed it to a compliant 'C' without a penny of capital works. That's revenue protected for the entire MEES window.

Rachel Goss
Asset Manager, Quayside Property Group

We've used 'cheap EPC' firms before — they always disappear after lodgement. The High Digital integration means we now get continuous portfolio visibility, not a one-time PDF.

Tom Gillespie
Director of Estates, Mercia Industrial Holdings

Methodology

Why we default to Level 4 Complex Modelling.

Basic Level 3 EPCs are fine for simple, single-zone lock-ups. But if your commercial asset has centralised air conditioning, complex exhaust mechanisms, or a Building Management System (BMS), a basic assessment cannot accurately capture your efficiency.

We specialise in Level 4 Non-Domestic assessments. By accurately modelling your complex HVAC systems and multi-zone environments in iSBEM, we ensure your building is credited for its actual performance, rather than being penalised by generic default values.

What it gives you

VRF & VAV cooling systems

Accurate modelling of centralised cooling networks, not generic defaults.

Multi-zone geometry

Detailed modelling for complex office, retail, and mixed-use layouts.

No "worst-case" penalties

Prevents government default values from artificially tanking your rating.

ESG-ready baseline data

Clean inputs ready for your corporate decarbonisation platforms.

The result is a calculation that protects your asset value and stands up to scrutiny — not just a cheap compliance number.

Secure Your Compliance

Drop your floor plans for a 2-hour quote.

Upload your building address, approximate square footage, and any CAD/PDF plans. Our quoting engine will analyse the complexity and return a guaranteed fixed price.

Start My Quote

Clear Answers

Frequently Asked Questions

Under current UK regulations, all privately rented non-domestic properties must achieve an EPC rating of at least a 'C' by April 1, 2027. By April 1, 2030, this minimum requirement will increase to an EPC rating of 'B'. Properties failing to meet these standards cannot be legally let.
Local authorities enforce MEES strictly. Fines for letting a non-compliant commercial property can be up to 20% of the property's rateable value, capped at £150,000 per breach. Crucially, the property also becomes a "stranded asset," meaning you cannot generate rental yield until the building is upgraded and re-assessed.
It depends on your building's mechanical complexity. Level 3 surveys are for simple properties with basic heating and natural ventilation. If your building has centralised air conditioning (like VRF/VAV systems), complex exhaust mechanisms, or a Building Management System (BMS), a Level 4 survey is legally required to accurately model the thermal dynamics.
To give you a guaranteed, fixed-price quote within 2 hours, we need the building's postcode, approximate square footage, and a brief description of its use (e.g., office, retail). Uploading existing CAD floor plans (.dwg), PDF layouts, or mechanical O&M manuals via our secure B2B intake form allows us to discount the quote, as it reduces our on-site measuring time.
A standard EPC is just a static PDF. Because we are powered by High Digital, we can take the raw XML data generated during your iSBEM calculation and pipe it directly into a corporate ESG dashboard. This allows your board to run interactive "CapEx vs. Carbon" scenarios to plan your route to Net Zero.