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Passivhaus and Sustainable Projects

Passivhaus

Harpenden

Passivhaus Plus Retrofit

Bedfordshire

EnerPHit Plus

Harpenden

3 x Passivhaus Plus

St Albans

Passivhaus Plus

Wheathampstead

PHI Low Energy Retrofit

St Albans

Passivhaus Plus

Harpenden

3 x Passivhaus

Southill

PHI Low Energy New Build

Harpenden

Passivhaus Plus Bungalow

Hertford

EnerPHit

Harpenden

Passivhaus Annexe

Ware

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