A legal requirement for landlords in the Republic of Ireland. Valid for 10 years, and here is who can do it, which properties it covers and what the law says.
A Building Energy Rating (BER) certificate rates a home's energy performance on a scale from A (most efficient) to G. Landlords in the Republic of Ireland need one before they advertise a property to let, and since 1 March 2026 it is also part of registering the tenancy with the RTB and of setting the rent. A BER is valid for 10 years, but a major change to the property can end it early.
You need a current BER before the property is advertised: the rating must be shown in every letting advert, and prospective tenants must be given the certificate. Since 1 March 2026 the BER is also stated in the RTB registration and in rent-setting notices, so a missing or expired BER now holds up more than just the advert.
Protected structures are exempt.
A BER is valid for 10 years. It stops being valid sooner if the property changes materially, for example an extension, or a new heating system. After work like that, get a new assessment so the rating reflects the home as it now is.
A new rating scale, from A0 to G, applies to assessments from 24 May 2026. Certificates issued before then remain valid until they expire.
The assessment is carried out by a registered BER assessor, who visits the property and records its insulation, windows, heating system, ventilation and lighting. You receive the certificate and an advisory report with suggested improvements. The price depends on the size and type of property, so get quotes from registered assessors.
The advisory report is worth reading as a landlord: a better rating can make a property easier to let, and improvement works may qualify for grants.
Every Republic of Ireland property has its BER on the register. Record the date it was issued and Beamwise tracks its 10-year validity and reminds you well before it runs out, so it is never the thing holding up a re-let, a registration or a rent review.
10 years, unless something the rules name ends it sooner (see what the law says, below).
A registered BER assessor.
Yes. It applies to every rented property in the Republic of Ireland.
EU (Energy Performance of Buildings) Regulations 2012 (S.I. 243/2012), as amended by S.I. 168/2026. Valid 10 years, but void after a material change such as an extension or a new heating system. Show the BER in every letting advert and give the certificate to prospective tenants. Since 1 March 2026 it is also stated in RTB registration and rent notices. New A0 to G scale from 24 May 2026; older certificates stay valid until they expire. Protected structures are exempt.
10 years, unless the property changes materially (for example an extension or a new heating system), in which case a new BER is needed.
Yes. The rating must be shown in every letting advert and the certificate given to prospective tenants. Since 1 March 2026 it is also part of RTB registration and rent notices. Protected structures are exempt.
No. A BER is the Republic of Ireland's energy certificate; an EPC is Northern Ireland's. They are separate schemes.
Written from the same rule Beamwise uses to track this for properties in the Republic of Ireland, last updated 25 Sept 2026. Rules change, so check the legislation named above or take professional advice before relying on it.
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