Our projects


Indigo House

Sector: Commercial


Indigo House is a 50 year old brick building, built for office use in the 1970’s. In that time the building has been refurbished several times, however this refurbishment was the most expansive and significant in its history, with intended extensions to the ground and 2nd floors and a complete overhaul of all building Heating, Ventilation and Air Conditioning (HVAC), lighting, internal space and additional renewable technology in the form of solar panels. The refurbishment is intended to bring the building up to standards in line with a modern newly built development intended for further commercial/office use.

Although the project had few technical difficulties, the structure and electrical supplies were all sufficient, it did have quite stringent energy and CO2 targets particularly for existing buildings. The newly-built extensions had to comply with the London Plan requirements, a 35% improvement over current Building Regs, and the client required a BREEAM “Very Good” rating.

Services provided

  • BREEAM Assessment
  • SBEM Calculations
  • Energy Performance Certificate (EPC)
  • Energy Statement
Indigo House - Commercial - BREEAM, SBEM & EPC, Energy Statement - QuinnRoss Energy


QuinnRoss Energy performed all Building Regs, energy and CO2 thermal modelling calculations, energy strategies, all BREEAM management as well as fulfilling a significant number of the BREEAM credits themselves. We also advised quantities of solar panels required to meet the council’s requirements, amounts of insulation needed to enable the constructions to comply and ensured the building achieved its BREEAM target score, often going the extra mile to fulfil credits not instructed on.

Compliance, Design & Validation

Whether you need a SAP for a bungalow, overheating analysis for a penthouse, London energy statement, or BREEAM assessment our technical specialists will work with you to find the best solutions for compliance within your deadlines and budget, explaining them in plain English.


Need expert assistance?

You are in the best possible place!

From bespoke M&E design, to specialist planning reports and our wide range of sustainability assessments, the team here at QuinnRoss Energy would be delighted to assist you.

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Did you know?

Stats, Facts & Savings



The energy used in creating and sending an average email has a carbon footprint of 0.3g CO2e.*



That’s the equivalent of walking through an external door of a heated building on a winters day.



If Britain’s overall workforce sent two less emails per day each year, it would save the carbon dioxide equivalent of 35,000 economy flights between UK and Spain.

* Reference the study by Mike Berners-Lee of Lancaster University