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BER ratings · Castletroy, Co. Limerick

BER ratings in Castletroy: typical B3, 3% rated E to G

2,064 current BER certificates on the SEAI register carry a Castletroy address and Eircode. The middle rating is B3; 3% are E, F or G and 57% are A or B.

Figures compiled from the public records listed at the foot of this page. Data snapshot: . Updated when the records change.

Check one house in Castletroy

Typical BER B3 in Castletroy, 3% of 2,064 certificates rated E to G.

One specific house in Castletroy: BER certificate and advisory report for that Eircode, flood zone, radon, planning applications within 300 m, sale history. Thirty-eight checks in all, each linked to the public record.

€19.99, free snapshot first. No account.

Or read the sample report first: a real house, 16 pages.

B3

middle BER of 2,064 current certificates with a Castletroy Eircode

3%

rated E, F or G (Ireland: 12%)

57%

rated A or B (Ireland: 50%)

A
B
C
D

A 34% · B 24% · C 32% · D 8% · E 2% · F 1% · G 0%

Energy ratings in Castletroy: what the SEAI register shows

Compiled from certificates published on the SEAI National BER Register. For Castletroy (address and Eircode routing key both matched) we count 2,064 current certificates, 1,379 of them issued since 2023. The middle rating is B3. Newer stock than average: 57% are A or B against 50% nationally, which usually means recent estates.

A certificate exists only where a house was sold, let or built since 2009, so the register leans towards houses that have changed hands. Certificates without an Eircode (mostly older ones) are not counted here. Average energy use across certified homes in Castletroy is about 135 kWh/m² a year.

Reading a BER as a buyer

The letter is the headline; the advisory report is the useful part. It lists what the assessor saw (walls, roof, windows, boiler) and what each upgrade would do to the rating. On 24 May 2026 the scale changed to A0, A, B, C, D, E, F and G with no sub-grades; older certificates stay valid for ten years, so check the issue date and validity on the SEAI register.

For a mortgage, green rates depend on the BER and each lender sets its own band (AIB asks for A0, A or B on a certificate dated after 24 May 2026, or A1 to B3 on an older one). For an E, F or G house, price in the retrofit: SEAI grants cover part, and a One Stop Shop deep retrofit runs from €25,000 upwards after grants on a typical semi.

Also for Castletroy

Flood risk in Castletroy · Radon in Castletroy · Planning in Castletroy · BER across Co. Limerick

Nearby: Limerick, Dooradoyle, Shannon, Kilmallock, Nenagh, Ennis.

Other checks for Castletroy

GuideHow to check the BER of a house in Ireland (SEAI register)

Questions people ask

What is the typical BER in Castletroy?
Of 2,064 current certificates on the SEAI register with an Eircode in Castletroy, the middle rating is B3. 57% are A or B, 3% are E, F or G. Nationally the split is 50% A/B and 12% E/F/G.
How much does a poor BER cost to run?
The register's average energy use for Castletroy is about 135 kWh per square metre a year. A G-rated house on the old scale used over 450; an old A2 under 50 (most certificates on the market still use that scale). On a 100 m² house at today's prices that gap is several thousand euro a year in heating, before any SEAI grant.
Can I get the BER for a house before buying?
Every advertised house must show its BER and the seller must give you the certificate and advisory report. The report on this site pulls the certificate straight from the SEAI register for the Eircode, with the assessor's advisory report attached, so you can see what the upgrade path is before you view.

Sources

Area figures, compiled from public records. They describe the town or county, not any one house. The paid report checks the exact Eircode.