9 Castlereagh Street

office

9 Castlereagh Street, Sydney NSW

9 Castlereagh St, an A-Grade, thirty-one story office building, well-located in the Sydney CBD Core, opposite the Martin Place metro station.

We welcome you to our asset on Gadigal land.

Completed in 1989, this Harry Seidler-designed landmark office tower features a unique internal light well and variety of floor plates. The property consists of 31 upper office levels, a ground floor office tenancy, a lobby café and arrival space, and basement parking for 28 on grade spaces and 50 car stackers. 

Several refurbishments were undertaken in 2022, 2024 and 2025. These included transforming the former childcare space into a sleek and functional workspace occupied by WMK, upgrading the end-of-trip facilities, and constructing the new Lobby Café and Bar, named Reagh’s by The Grounds. Reagh’s has been seamlessly integrated into the building’s fabric, offering a premium bar and dining experience that enhances the building’s vibrancy and attracts not only tenants but also visitors from across the city. The Third Space in the lobby was also incorporated, designed to provide tenants with a comfortable environment to relax, meet, and collaborate, alongside a new executive concierge service.

Note: Charter Hall pays our respects to the Traditional Owners of Country and note that reference to the traditional land(s) is based on current Land Title knowledge which can be contested and reviewed at any time.

Building information

Total NLA 21,005sqm
Typical Floor Plan 585 - 775sqm
Office grade A
Points of Interest
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Nabers-Waste-Management-Star-Rating-4.5
Achieved
4.5 Star

Waste

A NABERS Waste rating measures the amount of waste a building generates including materials that are recycled. The Waste Manager Platform is an online service which allows buildings to upload their waste data and convert it into visual insights which can be used to interrogate changes in waste practices in a building, waste reporting and to promote recycling improvements.
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Achieved
5 Star

Performance v1.2

Green Star – Performance assesses the operational performance of buildings across nine impact categories; management, indoor environment quality, energy, transport, water, materials, land use and ecology, emissions and innovation.
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Achieved
4.5 Star

Water

A NABERS Water rating looks at the amount of water used and recycled within a building. Whole building Water rating: measures all of the water used in a building, including the base building and tenant occupied spaced.
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Achieved
5 Star

Energy

NABERS Energy measures the efficiency of an office building and rates either the base building, tenancy or whole building. An energy ratings works by comparing the energy consumption of a building against a set of benchmarks that have been developed using actual data. A NABERS Energy rating can be done with or without GreenPower. Base building Energy rating: occurs when central services like heating and cooling systems, lifts and lobby lighting are rated. Tenancy Energy rating: when businesses choose to rate the space they occupy within a building. Whole building Energy rating: this rates the base building and tenant occupied space. This usually occurs when there is a single tenant occupying an entire building.
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Contact Us

Amalia Castillo

Amalia Castillo

Senior Property Manager - Office

Holly Keys

Holly Keys

Regional Portfolio Manager - NSW