betti & knut
projects
about
passivehouse
contact
betti & knut
projects
about
passivehouse
contact
contact
Sustainable architecture and interior design
Coledale (nsw 2515)
m: 041 609 6050
dipl.ing. bettina steffens
dipl.ing. knut menden (architect nsw 10926/ act 2720 )
certified passive house designer
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