Above: A new entrance hall was created at
the junction of the existing home and the
extension that forms the guest house, seen in
the background. Walls in the addition are board-
formed concrete, with floors in black stained
concrete. The front door and driveway are on
the left, while the door on the right leads out
to the expansive new deck, pool and outdoor
entertaining area.
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property and the project expanded greatly
in size and scope.”
With the property now doubled in size
to just over 6000m 2 , there was an oppor-
tunity to create a nature trail leading to a
small pavilion further up the hill.
But it also allowed for much more sub-
stantial changes to be made to the existing
building – expanding it horizontally with
the addition of completely new 250m 2
guest wing.
“The design of the whole house was
driven by the post and beam construction
of the original Mid-century Modern home,”
says Mercier.
The addition is post and beam too, but
this time in exposed steel instead of wood.
Plus the ceiling height was raised in this
new section of the house.
“We played off the linearity of the
existing home, so the new structure also
follows the view line. The whole back of
the house becomes glass, with views out.”
And the design of the pool and deck
that the project had started with was also
extended along the entire back, tying the