SuperHome Database

Liverpool, Wavertree, Broxton Street

House Summary

Martin Gladwin- Plus Dane Group

House Type:
c. 1880 Victorian end of terrace 3-bed house

Carbon saving:

Measures installed:

  • Condensing boiler
  • Floor Insulation
  • Internal Wall Insulation
  • Loft Insulation
  • Low Energy Appliances
  • Low Energy Lighting
  • Mechanical Ventilation Heat Recovery
  • Solar Water Heating
  • Triple Glazing

Upcoming events

This house does not open for events. However you can still contact the homeowners using the contact form below to ask them questions.

What visitors are saying

"As homeowners looking to improve our energy efficiency we found it useful to speak to someone who has already done it."

Measures installed in detail:

  • Triple glazed windows throughout.
  • All external walls internally insulated using SupaWall.
  • 400mm Rockwool quilt insulation to roof space.
  • Ground floor reconstructed with new concrete floor slab, sleeper walls and SupaFloor panels.
  • Extensive air tightness work. Reading after works of 2.75 m3/h.m2.
  • MVHR unit providing whole house ventilation heat recovery.
  • Worcester condensing boiler with good controls and TRVs to the three radiators fitted at ground floor level.
  • Solar panels installed to south facing rear roof slope.
  • Low energy lighting installed throughout.
  • New conservatory to rear of property, generating solar gain used to reduce the load on the MVHR unit.
Common questions and answers for this SuperHome

Did you use a specialist advisor to come up with an initial "grand plan"? +

We did have a ‘grand plan’ at the outset to do a retrofit PassivHaus. Our own Development team had been trying to complete a PassivHaus newbuild scheme for some time but never managed it, so working with them we decided to see how far we could go with an existing home. To our knowledge this hadn’t been attempted in the UK before the Retrofit for the Future competition came along.

We didn’t engage a specialist advisor specifically on PassivHaus, although we did appoint a Merseyside architect (Alan Larrossa) who worked closely with ourselves and Maple Timber Frame in developing the scheme.

Whilst our Development team knew a lot of information about PassivHaus concepts, we did lots of research at the outset to understand how best to proceed. Here are 3 good websites devoted to PassivHaus if you are planning to go that way yourselves [1] [2] [3]

Why did you decide to use SupaWall / Supafloor? +

We decided to use Maple Timber Frame’s Supawall and Supafloor products at a relatively early stage, because:

  • Their products were PassivHaus accredited
  • We had already worked with them on new-build timber frame homes
  • They are North-West based (Preston)
  • They were very keen to do it!
Have you had any subsequent problems with condensation?+

I’m very pleased to report that we haven’t had any incidents of condensation in the home since it was finished. The Mechanical Ventilation Heat Recovery unit in the house is one key part to ensuring this. Good design, tight control of the refurb process, good contractors and good products are all essential to achieving a good outcome. In our case, involving the residents at all times was very important – they attended every site meeting during the project so knew exactly what was in the property and how to use it from day 1.

Contact this homeowner

Assessment types

SuperHomes Assessed

A home that has been visited and assessed by us and confirmed as reaching the SuperHome standard, which demonstrates a 60% carbon saving.

Homeowner Reported

Information has been provided by the homeowner about their home and energy use prior to the installation of measures and following their installation which demonstrates a carbon saving. This information has not been verified.

Remote Assessed

The homeowner has provided information on their home including what measures have been installed which has enables an assessor working on our behalf to assess their carbon savings. This home has not been visited to verify the measures installed.


This home has not been assessed, but the homeowner has reported what measures have been installed. It may be that this home is awaiting assessment.