Commercial EPC case studies
Representative scenarios that show what a commercial EPC actually does for an owner: clearing the MEES line for a letting, turning an unlettable unit back into an asset, and getting early sight of a large-building liability. Illustrative examples, not named clients.
Office suite lifted from E to C ahead of a new lease
- Floor area
- 620 sqm
- Assessment
- Level 4 (SBEM)
The scenario
A landlord with a 1990s two-storey office of around 620 sqm, gas-heated with dated lighting, had an incoming tenant ready to sign a new lease. The existing EPC had expired and the space was expected to scrape an E, leaving no compliance margin for the length of the lease.
The outcome
Assessment came back at a weak E. Acting on the EPC recommendations, the landlord replaced the lighting with LED and controls and improved the heating controls before reassessment. The building was recertified at C, comfortably above the MEES minimum, giving the tenant confidence and removing the risk of the space becoming unlettable during the lease. New certificate lodged and valid for ten years.
Retail unit F-rating fixed to relet
- Floor area
- 140 sqm
- Assessment
- Level 3 (SBEM)
The scenario
A high-street retail unit of around 140 sqm sat empty after a tenant left. On assessment it came back EPC F, meaning it could not lawfully be relet without registering an exemption. The owner needed it back on the market fast in a competitive parade.
The outcome
The EPC recommendations identified lighting and heating as the quick wins. Replacing old lighting with LED and controls and upgrading the electric heating lifted the unit from F to a solid E on reassessment, restoring the legal right to let. The unit was remarketed within days rather than being stranded or forced onto the exemptions register, and the owner had a clear costed path to push it higher if a longer lease demanded it.
Large distribution warehouse — Level 4 SBEM assessment ahead of 2031
- Floor area
- 4,200 sqm
- Assessment
- Level 4 (SBEM)
The scenario
The owner of a 4,200 sqm distribution warehouse, warm-shell with gas space heating and partial roof insulation, wanted to understand its position before a possible letting and, given its size, its exposure to the proposed EPC B by 2031 standard for buildings over 1,000 sqm.
The outcome
The building assessed at D, lawfully lettable at today's EPC E minimum but well short of the EPC B proposed for over-1,000 sqm buildings by 2031. The EPC recommendations mapped the route to a higher band (roof insulation, heating and lighting upgrades, potential low-carbon heating and on-site generation). The owner used the certificate as the basis of a phased capital plan, addressing the 2031 exposure on their own lease cycle rather than being caught out late.