6 offices available
From $2,000 /mo
2-50+ people
People
2-50+
Available
6 suites
From
$2,000/mo
Availability
SS-280Need space for a larger team?
Availability changes frequently, and HQ often has more offices than are listed here. Suites here are combined for larger teams, up to 50 people and beyond. Pick your team size and we will check what is free right now.
How many people?
Why this building
Castlereagh Street Prestige
External Window Aspects
Town Hall Station Proximity
The building
Few addresses in Sydney's heart combine the prestige of Castlereagh Street with HQ's distinctive approach to serviced offices for lease in Sydney. This landmark building delivers premium private offices where natural light streams through external-facing windows, creating bright workspaces that inspire productivity and collaboration across teams of varying sizes.
HQ Sydney transforms traditional office culture through thoughtfully designed interiors that blend contemporary aesthetics with functional flexibility. The workspace features sophisticated common areas and meeting facilities that encourage networking, while private offices maintain the focus and professionalism growing businesses demand. External aspects ensure consistent natural light throughout the day, supporting wellbeing and performance.
Castlereagh Street positions teams at the epicentre of Sydney's business district in New South Wales, surrounded by George Street's retail energy and Pitt Street's commercial pulse. The neighbourhood offers over 85 dining options from Martin Place's fine dining to Hyde Park Barracks' casual cafes, plus 14 fitness centres supporting work-life balance. Town Hall Station's proximity connects teams across Sydney's transport network.
Startups scaling rapidly and established firms seeking flexible office space Sydney wide find their rhythm here. The building attracts creative agencies, professional services, and tech companies who value Castlereagh Street's prestigious address alongside HQ's community-focused workspace philosophy.
Read more
HQ Sydney transforms traditional office culture through thoughtfully designed interiors that blend contemporary aesthetics with functional flexibility. The workspace features sophisticated common areas and meeting facilities that encourage networking, while private offices maintain the focus and professionalism growing businesses demand. External aspects ensure consistent natural light throughout the day, supporting wellbeing and performance.
Castlereagh Street positions teams at the epicentre of Sydney's business district in New South Wales, surrounded by George Street's retail energy and Pitt Street's commercial pulse. The neighbourhood offers over 85 dining options from Martin Place's fine dining to Hyde Park Barracks' casual cafes, plus 14 fitness centres supporting work-life balance. Town Hall Station's proximity connects teams across Sydney's transport network.
Startups scaling rapidly and established firms seeking flexible office space Sydney wide find their rhythm here. The building attracts creative agencies, professional services, and tech companies who value Castlereagh Street's prestigious address alongside HQ's community-focused workspace philosophy.
Key facts
| Product | Serviced offices |
| Operator | HQ |
| Address | 233 Castlereagh Street, Sydney NSW 2000 |
| Offices available | 6 |
| Team sizes | 2-50+ |
| From | $2,000 /mo all-inclusive |
| Monthly range | $2,000-$20,100 |
| Terms | Flexible · all-inclusive |
| Reference | SS-280 · listed on Sidespace, updated 15 Aug 2026 |
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
Museum Station
Train station
150m
Gadigal Station
Metro station
250m
Town Hall
Light rail stop
300m
Aquarium Wharf
Ferry wharf
1.0km
The operator
About HQ
View all HQ locations ›
HQ offers reliable, functional, and transparent flexible workspace solutions tailored for professionals, startups, and established businesses across Australia. With a network of prime locations in major cities including Sydney, Melbourne, Brisbane, Perth, and beyond, HQ provides fully serviced private offices, dedicated desks, coworking spaces, day offices, meeting rooms, and virtual office options on adaptable terms-from short-term access by the hour or day to longer commitments. Enjoy move-in-ready environments featuring high-speed Wi-Fi, ergonomic setups, professional reception support, fully equipped kitchens, breakout areas, and modern amenities that promote focus, collaboration, and efficiency without the complexities of traditional office leases.
Position your business for success in Australia's innovative and resilient economy with a prestigious address, seamless scalability, and hassle-free operations-HQ takes care of utilities, maintenance, cleaning, and administrative needs so you can concentrate on growth and productivity. Whether building a local presence, supporting hybrid teams, or expanding regionally, HQ delivers straightforward, high-quality workspaces that foster professional connections and work-life balance in key commercial hubs.
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Frequently asked questions
How much is office space at 233 Castlereagh Street, Sydney?
$2,000 to $20,100 a month is the current all-inclusive range at 233 Castlereagh Street, across 6 available suites. Rates at this centre are indicative, we confirm exact pricing on enquiry.
What does that work out to per desk at 233 Castlereagh Street?
$1,000 to $1,006 per desk per month, based on the 6 priced suites listed at 233 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 233 Castlereagh Street?
6 private offices are listed at 233 Castlereagh Street, suiting 2 to 20 people. Larger teams are accommodated by combining suites, up to 50 people and beyond; tell us your headcount.
When is office space at 233 Castlereagh Street available?
1 of the 6 listed offices is available for occupation at 233 Castlereagh Street.
How do you get to 233 Castlereagh Street?
150m from Museum Station, and 250m from Gadigal Station. It sits between George Street and Pitt Street.
Who operates 233 Castlereagh Street?
HQ operates the 6 serviced offices listed at 233 Castlereagh Street.
