Ellipse Property unveils Atrium Penthouse Collection at Carrington Place, Castle Hill

“We honestly never thought we’d have penthouses.”

That was the view from Ellipse Property Group, developer of Carrington Place, Cas​tle Hill’s $850 million masterplanned community. Atrium, the project’s first stage, has been one of the Hills Shire’s most successful launches, with sales cutting across almost every buyer demographic. But it was one group in particular, downsizers, that shaped the next evolution of the development.

“Our large three-bedroom apartments, anything bigger than 135 sqm, were quickly getting snapped up,” says Puja Khanna, Ellipse’s Sales, Marketing and Design Associate Director. “We had a huge amount of interest from downsizers who were living in houses and used to having extra space. Many hadn’t wanted to leave because they couldn’t see themselves in a smaller apartment.”

That demand drove Ellipse to reconfigure layouts during the early stages of the construction phase. “At one point a buyer asked us to combine a two-bedroom and a one-bedroom into a 145 sqm three-bedroom. We applied that across the stack and created five more, they all sold very quickly.  Then another buyer wanted something even bigger. We looked strategically at how to cater for this appetite and ended up redesigning the whole of the top level. Sixteen units became eight penthouses, each one unique in its design, configuration, or aspect.”

Ellipse’s new penthouse collection takes space and finishes to another level. Offering up to 334 sqm of indoor-outdoor living, they feature stone kitchens with central islands designed for entertaining, walk-in pantries, and a full suite of integrated Miele appliances and a Fisher & Paykel fridge.

Living areas are anchored by luxury fireplaces, while expansive balconies and terraces include outdoor kitchens with bar fridges, sinks, and built-in barbecue benches. Bathrooms will feature large-format porcelain tiles, brushed brass fittings, frameless shower screens, and floating timber-toned vanities.

“We’ve already had a buyer secure one of the penthouses purely from a hand-sketch drawing,” Khanna says. “We worked with them for months to refine the specifications and inclusions. That consultation process has helped shape the rest of the penthouses — some even feature two separate living spaces.”

Ellipse’s builder Decode Group, an award-winning Tier 2 residential builder and one of the first to achieve a prestigious Gold iCIRT rating, is well advanced in construction at Atrium, which is expected to welcome its first residents in mid-2026.

There will be four stages to Carrington Place, delivering over 800 apartments alongside 20,000 sqm of outdoor recreation space. Plans include a one-kilometre boardwalk connecting to Fred Caterson Reserve, along with extensive landscaping and community amenity. Ellipse has recently launched Carrington Place’s second stage, Lily Lane, which will deliver 220 new apartments across two new buildings.