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Landlords: the £30,000 EPC deadline hiding in your portfolio

October 13, 2026•3 min read

If you let property in Sheffield, there's a date you need to know: 1 October 2030.

By then, every privately rented home in England and Wales must meet a new, higher energy-efficiency standard - and the penalties for missing it are about to get expensive.

Where the law stands today

Right now, a rental must be rated EPC E or above to be legally let. Below E, you can't grant a new tenancy (unless a valid exemption is registered), and you can be fined up to £5,000.

That's the floor today. The next change raises the bar considerably.

The confirmed changes (announced by government, November 2025)

The government has confirmed it will raise the standard:

  • All tenancies must meet a new C-equivalent standard by 1 October 2030 - with no earlier deadline for new tenancies

  • Fines rise to up to £30,000 per property, per breach

  • Landlords must invest up to £10,000 per property on qualifying energy-efficiency improvements - with an average expected spend of around £5,400

  • The standard is dual-metric: a "fabric first" standard, then a second element (heating system or smart readiness) chosen by the landlord

  • New-style EPCs with the new metrics are expected to begin rolling out from late 2026 (subject to confirmation), with legislation expected in 2027

The one clause every landlord should know

This is the "grandparenting" clause, and it's the most valuable fact in this article:

If your property scores C or above on its EPC before 1 October 2029, it's treated as compliant with the new standard - until that EPC expires or is replaced.

Read that again. If you get to C before October 2029, you've effectively bought yourself years of security. Wait until the new metrics are in force, and the same works could be measured against a tougher yardstick.

What this means for your portfolio

The smart move isn't a big panic spend in 2029. It's:

  1. Know your current position - which properties are below C, and which have missing or expired EPCs

  2. Identify the properties with the cheapest route to C - often loft and cavity wall insulation

  3. Do the work early and get a post-work EPC showing C before October 2029

  4. Keep records - spend on relevant measures from 1 October 2025 onwards counts towards the £10,000 cap

The exemptions worth knowing

Not every property will have to reach C at any cost. The confirmed exemptions include:

  • Cost cap - after £10,000 of spend, you can register a 10-year exemption

  • Property value adjustment - properties valued under £100,000 have a lower cap (10% of value)

  • Solid wall insulation and negative impacts exemptions, among others

Exemptions must be registered on the official register - they're not automatic.

Your next step

You don't need to solve all of this today. You need to know where you stand.

A quick, property-by-property check tells you which homes are compliant, which are close, and which will be expensive. Do that now, while the deadline is still comfortably distant.

Not sure what's currently on the register for your properties? Start with a free check - it takes a minute.

Start your check here.

Simon Olszycki

Simon Olszycki

Simon is an accredited EPC assessor with over a decade of experience in construction, project management and UK real estate.

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