Marvel Homes
Pennant Hills custom home interior, an open-plan kitchen and living area with a marble-look island, warm timber and black joinery and a sculptural ring pendant
SIP Construction

Pennant Hills.
Hornsby.

A custom home on busy Pennant Hills Road, built with 140 mm structural insulated panels to keep the traffic out and the comfort in.

Pennant Hills, Hornsby
The finished home

Step inside the finished home.

Walls140 mm SIPstructural insulated panels throughout
AcousticQuieterbuilt to cut heavy-traffic noise from Pennant Hills Road
ThermalEfficienta dense, well-sealed envelope that holds temperature
Open-plan living and kitchen with grey stone-look porcelain floors, skylights, a media wall and the kitchen beyondKitchen with a marble-look waterfall island, warm timber and black joinery, a mirrored window splashback and a ring pendantGalley kitchen run with a stone benchtop, gas cooktop, window splashback to greenery and timber overhead cabinetryFloating timber staircase with a black stringer, glass balustrade and a timber wall-mounted handrailDouble-height stairwell void with a multi-ring chandelier, skylights and a tall picture window to the treesUpstairs gallery walkway in timber flooring with a glass balustrade, overlooking the stairwell and chandelierDetail of the floating timber treads cantilevered off a black steel spine behind a glass balustradeMain bathroom in large-format grey tiles with a double timber vanity, vessel basins, freestanding tub and a skylight
The family request

A custom home on one of Sydney's busiest roads.

This home sits directly beside Pennant Hills Road, for years one of Sydney's most congested routes and, until the NorthConnex tunnel opened, choked with heavy trucks. The tunnel was built largely to take them off the road, more than 5,000 trucks a day. For the family living right on that edge, the brief came down to one thing: keep the noise out, and stay comfortable all year.

The challenge

Relentless traffic and heavy-truck noise from Pennant Hills Road.

What we delivered

Double-glazed uPVC windows and a dense, insulated panel envelope were specified together to keep sound transfer down and the inside calm.

The challenge

Staying comfortable on an exposed main road, year-round.

What we delivered

The same high-insulation envelope holds temperature far better than a standard timber frame, so the home stays steady through summer and winter.

What we learned

What is SIP, why we used it, and where it led us.

Structural insulated panels, or SIPs, are large factory-made wall panels: a thick core of rigid insulation bonded between two structural boards, delivered ready to stand up on site. A standard 90 mm timber frame could not give us the acoustic performance this site demanded, and at the time we were not yet building to the Passive House standard, so SIP looked like the answer.

On paper it was the most logical approach. The panels were not especially heavy, no specialty tools were needed, and the plan was simply to lift each one into place and cut the few that needed cutting. For the glazing we specified double-glazed uPVC windows, with the strongest acoustic result coming from a 6 mm glass build-up and an argon-filled cavity.

In practice it was a different story. SIP does not follow the traditional timber-framing methods every carpenter is trained in, so our team had to learn the system as the build went on. It proved far more labour-intensive than planned and added significant time to the program. The acoustic and thermal goals were met, but the path to them was not efficient.

That experience sent us looking for a better way, and the research kept pointing to the same answer. A certified Passive House delivers the same quiet, comfort and efficiency through a method that is repeatable, scalable and far easier for a trained team to execute. It is the reason every Marvel home today is built to the Passive House standard.

On site at framing stage: the SIP panels going up before lining and cladding.
Aerial view of the home at framing stage, two storeys wrapped in blue-faced SIP wall panels with the roof trusses upThe SIP-framed home from the street, blue insulated panels forming the upper level above the timber-framed ground floor, beside Pennant Hills RoadLooking down into the structure during the build, SIP wall panels standing around the open floor with a Marvel Homes site hoarding
Build your project story

Every Marvel build starts with a problem worth solving.

If your site is complex, your brief is specific, and you want a home that genuinely performs, talk to us. We build five to eight homes a year, by choice, and we finish what we start. If yours is a fit, we will tell you quickly.

See how we buildStart a conversation
Open-plan living and kitchen with grey stone-look porcelain floors, skylights, a media wall and the kitchen beyondKitchen with a marble-look waterfall island, warm timber and black joinery, a mirrored window splashback and a ring pendant
Where we build

Marvel Homes designs and builds certified Passive Houses in Pennant Hills and across the Hornsby, including Beecroft, Cheltenham, Thornleigh, West Pennant Hills and Carlingford. Talk to us about your block.