First look: Another major apartment proposal signals Mosman's development boom

First look: Another major apartment proposal signals Mosman's development boom
Joel RobinsonJul 27, 2026PLANNING ALERT

The wave of apartment proposals sweeping through Mosman shows no signs of slowing, with another major residential development lodged through the NSW Government's State Significant Development pathway.

Developer First Quadrant Properties, which recently completed Willoughby Grounds and has several projects in planning across the North Shore, has unveiled plans for Cove on Ourimbah, a 63-apartment development on Ourimbah Road, adding to the growing pipeline of projects reshaping one of Sydney's most tightly held harbour suburbs.

The proposal would consolidate nine properties at 40-56 Ourimbah Road into a part eight, part nine-storey apartment building, continuing the momentum created by the NSW Government's accelerated planning pathways that have seen several significant developments emerge across Mosman over the past 12 months.

Designed by Doroch Architects, the project would deliver 63 apartments, resident wellness facilities including a gym, pool and sauna, landscaped communal spaces and basement parking, while using recessed upper levels, generous setbacks and extensive planting to reduce the perceived scale of the building.

First look: Another major apartment proposal signals Mosman's development boom

Doroch Architects said the building had been designed to reinforce Mosman's established character.

"The building's aesthetic is grounded in the existing residential character of Ourimbah Road and the broader Mosman context," the architect noted in the planning documents submitted to the NSW Government.

The design adopts a contemporary material palette of natural stone, textured concrete and brown concave metal cladding, complemented by integrated planters and deep balconies. The podium incorporates softened curved concrete forms, while increased setbacks have been provided adjacent to the heritage-listed property at 60 Ourimbah Road to create a more sympathetic transition.

The site sits around 330 metres from Mosman Town Centre, placing it within the NSW Government's Low and Mid-Rise Housing policy area, where increased residential density is being encouraged close to shops, transport and services.

The proposal follows a string of major apartment projects lodged or declared State Significant in Mosman in recent months, including Abadeen's 100-apartment Honeysuckle Garden redevelopment on Military Road and several other developments across Awaba Street, Redan Street and Muston Street from the likes of Time & Place, HELM and Prosker Property.

 

Read more: Time & Place to take on Mosman apartment market

Read more: First look: Abadeen plans 100 apartments on former Honeysuckle Garden site in Mosman

 

Joel Robinson

Joel Robinson is the Editor in Chief at Apartments.com.au, where he leads the editorial team and oversees the country’s most comprehensive news coverage dedicated to the off the plan property market. With more than a decade of experience in residential real estate journalism, Joel brings deep insight into Australia’s evolving development landscape.

He holds a degree in Business Management with a major in Journalism from Leeds Beckett University in the UK, and has developed a particular expertise in off the plan apartment space. Joel’s editorial lens spans the full lifecycle of a project, from site acquisition and planning approvals through to new launches, construction completions, and final sell-out, delivering trusted, buyer-focused content that supports informed decision-making across the property journey