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The Commons logo 121 Castlereagh Street, Sydney From $5,000/mo on Sidespace Availability Building Market
The Commons logo
For Lease Serviced
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The Commons logo
For Lease Serviced
The Commons Castlereagh Street · Sydney

8 person serviced office, 121 Castlereagh Street, Sydney

5 offices listed
This office

8 person office

People
8
Rent
$9,200/mo
Per desk
$1,150/mo
All 5 offices at 121 Castlereagh Street
People
4-18
Available
5 suites
From
$5,000/mo
24/7 Access Reception Reception Svcs Air Con Cleaning Building Wifi

Availability

SS-436

Listed 3 Sep 2026

4 4 people
$5,000/mo
Available now
8 Person Office This page
8 8 people
$9,200/mo
Available now
9 9 people
$10,575/mo
Available now
16 16 people
$20,000/mo
Available now
18 18 people
$20,700/mo
Available now
Need space for a larger team?
The largest suite here takes 18. Bigger teams are usually accommodated by combining suites, tell us your headcount.
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

Read more

Key facts

ProductServiced offices
OperatorThe Commons
Address121 Castlereagh Street, Sydney NSW 2000
Offices available5
Team sizes4-18
From$5,000 /mo all-inclusive
Monthly range$9,200-$20,700
TermsFlexible · all-inclusive
ReferenceSS-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

The Commons is a managed workspace operator with office space available at 121 Castlereagh Street, Sydney. Contact Sidespace to learn more about their portfolio.

View all The Commons locations ›

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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.