Court row over 'most expensive apartment in Ireland' allegedly overheating to 'unbearable' highs

It's claimed temperatures in her apartment have reached "unbearable" highs of 33C degrees.

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Irish Mirror

14:36, 10 Jul 2026

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The Four Courts, Dublin.(Image: Getty Images/iStockphoto)

A High Court dispute over alleged overheating of a 6m penthouse apartment in Dublin is to go to mediation, a judge has been told.

Aideen O'Byrne bought the Lansdowne Place, Ballsbridge, apartment - marketed in 2017 as "thought to be the most expensive in Ireland" - for some 6.16m and moved in in 2021.

She has claimed that due to a failure to maintain or repair the district heating system, temperatures in her apartment have reached "unbearable" highs of 33C degrees.

Temperatures in lobby areas have been recorded to reach 29C degrees, she claimed.

She has sued the developers Copper Bridge C 2015 ICAV, and engineers O'Connor Sutton Cronin and Associates Ltd.

The defendants deny the claims. Copper Bridge said it had experts who "flatly contradict" the claims of Ms Byrne and also that it spent three years trying to address her claims without any progress.

The case has been before the court on a number of occasions to deal with a number of matters, including discovery.

On Friday, Gavin Mooney SC, for Ms O'Byrne, told Mr Justice Brian Cregan that pleadings had closed, most discovery had been agreed and it had been agreed between the parties to go to mediation on October 12.

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The court heard outstanding discovery issues had been paused until then.

The judge said he wanted the parties to "put their minds together" and use the ten weeks between now and the mediation to resolve outstanding issues on discovery. He adjourned the case until after the mediation takes place.

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