End Terrace Santry – Deep Retrofit

Key Details

Project Name: End Terrace Santry - Deep Retrofit
Client Name: Lee
Delivered: January 2023
Project Scope: Retrofit of a 1980s End Terrace house
The team from Sustainable Homes were very tidy and helpful from start to finish. Richard as Project Manager was knowledgeable, patient and responsive. Very pleased with the job. Homeowner

About the Project

Works as carried out by Bayview Sustainable Homes were:

  • Attic: Original 100mm topped up to 300mm and ventilated sufficiently
  • Cavity Wall Insulation: insulated bead blown into remaining 40mm cavity
  • Open Fire: closed up and ventilated chimney
  • Heating System: Upgrades from gas boiler to Heat pump. Radiators replaced
  • Lighting: Replaced all bulbs with LED hi efficiency bulbs.


Homeowner already had 2 storey extension built but not completed before Sustainable Homes began their works. He was still able to avail of the OSS.

Sustainable Homes by Bayview managed ALL parts of the homeowner journey including Energy assessment, site survey, client consultation, ALL trades to site, project management, provision of all certificates and sign off, as well as all SEAI grants and energy credits.

Efficiency Comparison

Type of Saving Starting Point Finishing Point
Rating C3 A3
Primary Energy kwhr/m2/yr 221.76 57.22
CO2 Kg/CO2/m2/yr 46.66 7.32
Heat Loss Indicator w/m2 2.46 1.65

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