Renovation and retrofit of an early victorian property in Cotham, Bristol. Reconfigured from a 3 flat conversion to a single occupancy home with a lower ground floor flat for multi generational family living. Retrofit: low temperature heating system, double glazing in original window sashes, renovated existing shutters and secondary glazing where there are no shutters. Automated ventilation using new Velux roof lights over staircase. Single room heat recovery units in bathrooms, kitchen and utility.