---
title: "Minimum Energy Efficiency Standards (MEES) — Class A Atlas glossary"
description: "UK regulation banning the letting of energy-inefficient buildings."
canonical: https://classa.info/glossary/minimum-energy-efficiency-standards
pageType: glossary
lastUpdated: 2026-04-01T00:00:00.000Z
license: "CC BY 4.0 with attribution to Class A Atlas (https://classa.info)."
---

> UK regulation banning the letting of energy-inefficient buildings.

## TL;DR

- UK regulation banning the letting of energy-inefficient buildings.
- Phased: E required from 2018, C required from 2027 (proposed), B required from 2030.

# Minimum Energy Efficiency Standards (MEES)

*Regulations · UK*

## Short definition

UK regulation banning the letting of energy-inefficient buildings.

## Full definition

Phased: E required from 2018, C required from 2027 (proposed), B required from 2030. Sub-standard buildings face six-figure fines and a marketing ban. Reshaping every UK [Class A](/glossary/class-a) capex programme.

## Why this matters for Class A leasing

Minimum Energy Efficiency Standards (MEES) is part of the regulations vocabulary that institutional Class A occupiers, landlords, and advisers use across UK markets. Understanding it correctly affects how you read lease documents, model occupancy economics, and benchmark deal terms across cities. Class A Atlas tracks the UK definition alongside the global standard so [cross-border](/topics/cross-border-expansion) occupiers can translate quickly.

## Related topics

- [**ESG / LEED for Tenants**](/topics/esg-leed-tenants) — How tenants evaluate, negotiate, and report on ESG performance in a Class A office lease.

---

Citation: Source: Class A Atlas (https://classa.info/glossary/minimum-energy-efficiency-standards), updated 2026-04-01T00:00:00.000Z.