Just four apartments remain for sale at The Greenhouse in Ponsonby.
Developer Ockham Residential says the building at 20 Williamson Avenue is finished and ready for residents to move in. The project is named for 150,000 iridescent, green-glazed, handmade bricks made in Italy by Sant’Anselmo.
The apartments sit just off Ponsonby Road, placing buyers near dining and retail in what Ockham calls Auckland’s “premier” strip. The remaining listings range from a small one-bedroom option priced at $840,000 to two-bedroom layouts priced at about $1.6 million.
What is the greenhouse at 20 williamson ave in ponsonby?
Ockham is marketing The Greenhouse as a completed inner-city residential building aimed at owner-occupiers and those wanting a central “bolthole”. It says the design takes cues from the landscapes of Tāmaki Makaurau and older apartment proportions, including large windows and high ceilings.
The company says it “welcom[es] the final members of The Greenhouse community”. Buyers can inspect plans and pricing through Ockham’s Plans + Pricing page, and the address appears on Google Maps.
In its description of shared spaces, Ockham says it has put extra focus on the lobby, hallways and a residents’ lounge. The developer says the aim is to create apartments that feel calmer than the street outside, with attention to light and privacy.
How much do the last greenhouse apartments cost?
The cheapest of the four listings is Apartment 609 at $840,000. Ockham describes it as a one-bedroom, 41m² apartment with a balcony, built-in storage and a study nook.
Apartment 608 is listed at $975,000. Ockham says it has 49m² plus a balcony and includes one car park, as well as “Classic Walnut cabinetry”, mirrored splashbacks and LED task lighting.
The two larger remaining homes are priced closer to $1.6 million. Apartment 602 is listed at $1,590,000 and Apartment 205 at $1,600,000, each with one car park, according to Ockham’s listings.
For buyers comparing central suburbs, recent sales and listings across neighbouring areas can offer context. The Arch Hill Advocate has also tracked nearby stock, including 125 homes for sale in Herne Bay and surrounding suburbs.
Apartment sizes, layouts and features buyers are being sold
Apartment 602 is described as a 1.5-bedroom home with one bathroom. Ockham lists its area as 61m² plus a 5m² balcony, and says it sits on the building’s “prime northern façade” with city views.
The listing emphasises a kitchen with a breakfast bar and an open-plan living area. It also highlights a “generous flexi room” behind a glass wall, pitched as a work-from-home space or guest room.
Apartment 205 is described as a two-bedroom, one-bathroom home of 70m² plus a 5m² balcony on the “prime north-west corner”. Ockham’s marketing highlights oak flooring and a customised kitchen with “Classic Walnut finish cabinetry”.
In the bathroom, Ockham lists “Nordic Islanda” tiles, Fired Earth green shower tiles, a basalt basin and a walnut vanity. The apartment is marketed as a fit for buyers wanting an inner-Ponsonby base close to work and hospitality.
I’ve spent 25 years in construction, reimagining urban communities, learning what’s possible when one acts with aspiration. With The Greenhouse, every detail, every finish, every brick, has been thought, and sometimes fought over, until we got to exactly where we needed to be.
Why the greenhouse uses italian bricks and what that signals
Ockham says the building’s defining material is the Italian-made brick, with 150,000 used across the project. It attributes the brickwork to Sant’Anselmo, near Venice, and says the “iridescent glaze” took four years to refine.
That level of material focus has become a marketing point in Auckland’s apartment sector, where buyers often weigh long-term durability against short-term finishes. Consumer guidance on what to check in a build, including disclosure and building performance, sits on the Consumer Protection website.
Ockham has also used named designers to sell the development’s interior choices. Architect Tania Wong is quoted as saying she spent 10,000 hours on details, with a palette inspired by nature and an “Aotearoa aesthetic”.
Tania Wong says: “Our material palette is deeply inspired by nature, by what we’ve dubbed the ‘Aotearoa aesthetic’. We wanted to bring the outside in. So we’ve got dark slate on the floors, the walls, the kitchen island benches; we have brass finishes in the bathrooms and kitchens. The oak flooring is beautiful, the walnut cabinetry warming…”
What the ponsonby location means for transport and daily life
The Greenhouse sits a short walk from Ponsonby Road, with cafes, restaurants and local services in close reach. Ockham also points to Juno, described as a ground-floor venue serving coffee and sandwiches by day and cocktails at night.
Transport remains a key consideration for apartment buyers weighing Ponsonby against fringe suburbs. Auckland Council is progressing city-fringe changes through its cycling and walking programme, with separate local reporting noting how Waitematā cycle and walking upgrades are moving into design.
Buyers looking to keep close to Arch Hill’s amenities often start with local guides rather than glossy brochures. A neighbourhood snapshot, including parks and weekend ideas, sits in our local’s guide.
Ockham’s four remaining apartments are listed for sale now, with individual Trade Me listings available for Apartments 602, 205, 609 and 608.
