This office
4 person office
People
4
Rent
$5,000/mo
Per desk
$1,250/mo
People
4-18
Available
5 suites
From
$5,000/mo
24/7 Access
Reception
Reception Svcs
Air Con
Cleaning
Building Wifi
Availability
SS-436
4 Person Office This page
4 4 people
$5,000/mo
Available now
Need space for a larger team?
18+ people
Why this building
Heart Of Castlereagh Street CBD
Premium workspace in Sydney.
Premium Furnished Private Offices
Offices for teams of 4 to 18 people with flexible terms.
Town Hall Station Proximity
5 offices available, contact Sidespace to arrange an inspection.
The building
Castlereagh Street's premier business address positions The Commons in the heart of Sydney's central business district, delivering serviced offices for lease that blend contemporary design with the energy of Australia's commercial capital. The Commons Sydney creates flexible workspaces where growing businesses access premium facilities without the constraints of traditional leasing, establishing itself as a cornerstone of modern office culture in New South Wales.
Floor-to-ceiling windows flood each private office with natural light, while thoughtfully curated communal areas encourage collaboration and networking among Sydney's most innovative companies. The interior design balances professional sophistication with the relaxed Australian aesthetic, creating an environment where teams from 2 to 15 people can focus, create and grow within fully furnished spaces that adapt to evolving business needs.
Sydney's retail and financial epicentre surrounds this Castlereagh Street location, with George Street's flagship stores, Pitt Street Mall's shopping precinct, and the historic Strand Arcade all within walking distance. The neighbourhood pulses with over 85 dining venues, from Hyde Park Barracks Cafe to premium establishments along Elizabeth Street, while Town Hall Station connects teams to Greater Sydney's transport network and the creative communities of Surry Hills and Newtown.
Technology startups, consulting firms and creative agencies find their natural home in these private offices Sydney NSW professionals seek, where reception services handle daily operations while meeting rooms accommodate everything from client presentations to board meetings. The Commons offices attract ambitious teams who value both professional infrastructure and the collaborative spirit that defines Sydney's modern business landscape.
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Floor-to-ceiling windows flood each private office with natural light, while thoughtfully curated communal areas encourage collaboration and networking among Sydney's most innovative companies. The interior design balances professional sophistication with the relaxed Australian aesthetic, creating an environment where teams from 2 to 15 people can focus, create and grow within fully furnished spaces that adapt to evolving business needs.
Sydney's retail and financial epicentre surrounds this Castlereagh Street location, with George Street's flagship stores, Pitt Street Mall's shopping precinct, and the historic Strand Arcade all within walking distance. The neighbourhood pulses with over 85 dining venues, from Hyde Park Barracks Cafe to premium establishments along Elizabeth Street, while Town Hall Station connects teams to Greater Sydney's transport network and the creative communities of Surry Hills and Newtown.
Technology startups, consulting firms and creative agencies find their natural home in these private offices Sydney NSW professionals seek, where reception services handle daily operations while meeting rooms accommodate everything from client presentations to board meetings. The Commons offices attract ambitious teams who value both professional infrastructure and the collaborative spirit that defines Sydney's modern business landscape.
Key facts
| Product | Serviced offices |
| Operator | The Commons |
| Address | 121 Castlereagh Street, Sydney NSW 2000 |
| Offices available | 5 |
| Team sizes | 4-18 |
| From | $5,000 /mo all-inclusive |
| Monthly range | $9,200-$20,700 |
| Terms | Flexible · all-inclusive |
| Reference | SS-436 · listed on Sidespace 3 Sep 2026 |
Included
24/7 Access
Reception
Reception Svcs
Air Con
Cleaning
Building Wifi
Meeting Rooms
Furnished
Location
Connecting streets
Streets intersecting or near Castlereagh Street
George Street
Pitt Street
Elizabeth Street
Kent Street
York Street
Clarence Street
Sussex Street
Market Street
King Street
Transport & access
Nearest transport options from this property
Town Hall Station
Train station
200m
George Street Light Rail
Tram / Light rail
150m
Wynyard Station
Train station
400m
Martin Place Station
Train station
500m
How 121 Castlereagh Street compares
Serviced desk rates, all-inclusive, per month · as at 5 October 2026
This building
$1,175
median of 3 priced suites
Sydney
$1,008
276 suites
Sydney market
$952
506 suites
Priced suites at 121 Castlereagh Street sit at a median of $1,175 a desk, 17% above the Sydney suburb median of $1,008 and 23% above the wider Sydney market median of $952.
The operator
About The Commons
View all The Commons locations ›
The Commons is a managed workspace operator with office space available at 121 Castlereagh Street, Sydney. Contact Sidespace to learn more about their portfolio.
More offices for lease nearby
222 Pitt Street
From $1,320 /mo
2-6+ people
More from The Commons
Frequently asked questions
How much is office space at 121 Castlereagh Street, Sydney?
$5,000 to $20,700 a month, all-inclusive, is what a private office at The Commons Castlereagh Street costs today, 5 suites are listed. Rates at this centre are indicative, we confirm exact pricing on enquiry.
What does that work out to per desk at The Commons Castlereagh Street?
$1,150 to $1,250 per desk per month, based on the 5 priced suites listed at The Commons Castlereagh Street and the headcount each is sized for. Rates at this centre are indicative, we confirm exact pricing on enquiry.
What size offices are available at The Commons Castlereagh Street?
5 private offices are listed at The Commons Castlereagh Street, suiting 4 to 18 people.
When is office space at The Commons Castlereagh Street available?
1 of the 5 listed offices is available for occupation at The Commons Castlereagh Street.
What is included in the rent at The Commons Castlereagh Street?
One monthly price covers 24/7 Access, Reception, Reception Svcs, Air Con, Cleaning, Building Wifi, plus utilities and internet, there is no separate outgoings bill on a serviced office.
How do you get to The Commons Castlereagh Street?
200m from Town Hall Station, and 150m from George Street Light Rail. It sits between George Street and Pitt Street.
Who operates The Commons Castlereagh Street?
The Commons operates the 5 serviced offices listed at The Commons Castlereagh Street.