Passivhaus Consultant and Designer, Bristol.  Very Low Energy Buildings.  Domestic and non-domestic.  New build and refurbishment. 

07502 425158

Bristol, UK


Entries in Heritage (2)


Another Listed Building needing an Energy Upgrade

This Grade II Listed former textiles mill is undergoing a change of use to residential use with groundfloor office space.  We are working with Greenheart Sustainable Construction to develop the detailed plans for the conversion, making the building energy efficient and comfortable to live in, whilst being sensitive to the buildings heritage.  

Insulating old solid walled buildings needs to be done with care and a whole house approach will be taken to include insulation, wiondow upgrades, airithghtness, ventilation, heating and hot water.  

The fundamental strategy is to select appropriate, mainly natural, building materials and get the ventilation and vapour control right.



Grade II* Listed Building Refurbishment

We have recently been appointed to advise on servcies and roof insulation for this Grade II* Listed house.

The heritage value of the building dictates most of the works with restoration as the main driver.  The focus for energy efficiency is on insulating the roof and providing energy efficient heating and hot water.

We are advising on design and procurement of a 50kW water source heat pump with oil backup for heating and hot water.  



The geometry of the roof, combined with the historic structure makes insulating the roof effectively without risking damage highly challenging.