Will your Hertsmere rental pass EPC C by 2030?

2,372 of 5,119 privately rented homes in Hertsmere are below EPC C, 46% of the local rental market. They must be upgraded by 1 October 2030.

How Hertsmere compares

Below average

Hertsmere is in better shape than most of England and Wales.

Best councils Worst councils

46% of rented homes here are below EPC C, against 53% across England and Wales. That ranks Hertsmere 268 of 318 councils by the share needing work.

Every band in Hertsmere

A 2

B 304

C 2,441

C is the line. Everything below it must be upgraded

D 1,883

E 460

F 22

G 7

Of 5,119 privately rented homes with a current certificate.

How many can actually reach C?

2,142 of the 2,372 sub-C rentals in Hertsmere, 90% of them, already have a potential rating of C or better on their current certificate. That is the assessor's own estimate of what the property would reach if the recommended measures were installed.

Landlords are required to spend up to £10,000 per property. Above that, an exemption may apply.

The transitional rule

An EPC rated C or higher on the existing Energy Efficiency Rating, issued before 1 October 2029, counts as compliant until that certificate expires.

Source: Transitional rule. Verified 21 September 2026.

Local housing stock

All tenures in Hertsmere, from properties with a current certificate.
Privately rented	5,119
Socially rented	4,518
Owner occupied	15,334
Median floor area	80 m²

Postcode districts in Hertsmere

Districts that sit mostly or wholly inside Hertsmere.

District	Post town	Rented	Below C	Share
WD6	Borehamwood	1,939	810	42%
EN6	Potters Bar	1,348	663	49%
WD23	Bushey	1,426	662	46%
WD25	Watford	1,194	485	41%
WD7	Radlett	517	255	49%