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Low Energy Design was appointed as Architects for two buildings at St. Bricin’s Park.


Block 3 converted 24 former bedsit dwellings into 12 one-bedroom units upgraded to B1 and B2 standard.  Block 2 set a higher goal of the Passive House retrofit standard called ‘EnerPHit’ the most demanding energy efficiency standard on the planet.


Improved thermal comfort was achieved by externally insulating the wall, insulating the floor and roof, a high standard in airtightness, high performance triple glazed external windows and doors, elimination and minimisation of thermal bridges, and mechanical ventilation with heat recovery installed in each apartment. This results in improved comfort for the occupants as well as reducing carbon emissions and fuel bills.


All key junctions were thermally modelled and some interventions were made to improve junctions such as existing concrete eaves to the front being removed to facilitate a simpler eave to provide continuous insulation at this key fabric junction


A robust onsite inspection regime followed to ensure quality control and best practice was achieved.


The newly upgraded apartments are high-quality homes that meet current space standards, have vastly improved thermal performance 80% better than the previous units and are fully compliant with the current Building Regulations.


  • Block 3 achieved a B1 & B2 Building Energy Rating.
  • Block 2 achieved an A3 rating for each dwelling and the EnerPHit Passive House standard.
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Ballyweelin in Rosses Point, Sligo

St Bricin’s Park, Arbour Hill, Dublin