Jim and Annie invite to their self build home. Formerley a steel frame cattle shed, converted in 2018 to a passive house standard house but not certified as such.
Green features
- Walls, with 350mm “warmcell” insulation.
- Windows triple glazed
- Roof lights quadruple glazed
- Air source heat pump, 5 kw.
- Heating. Small radiators we don’t use, 4 towel rails used a few hours each day for 6 months. Some winter evenings we light a small wood burner for an hour or two. It’s always comfortable. Some high summer over heating issues. Less since installing solar shading on two principle large windows.
- Mechanical ventilation with heat recovery.
- 4 kw of p.v. And e.v. Charging point
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- Carful attention to air tightness during build.
- 250m2
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- Rain water is diverted to top up a large pond.
Cost
Cost, me (architect) managing, sourcing materials, clearing up etc, not much over £1,000 per m2.
Running cost
The first year of occupation was 2019. Electric bill was £600 p.a. This included everything, heating, cooking, home working. Plus a few barrow loads of dry fire wood. Later bills include charging an e.v. So it’s less clear.
