14 suites available
45 William Street
POA
122–455 m²
People
1–5
Size
4–20 m²
Level
5 & 6
From
$749/mo
24/7 Access
Air Con
All-inclusive
Business Lounge
Concierge
DDA Access
Availability
Listed 10 Apr 2026 — availability confirmed on enquiry SS-136Need space for a larger team?
5+ people
Why this building
Collins Street Financial District
Premium workspace in Melbourne.
Business Lounge & Concierge
Offices for teams of 1 to 5 people with flexible terms.
Flinders Street Station Hub
5 offices available – contact Sidespace to arrange an inspection.
The building
For ambitious teams seeking serviced offices for lease in Melbourne, Tank Stream Labs delivers a sophisticated workspace experience at the prestigious Collins Street address. The contemporary fit-out combines productivity-focused private offices with collaborative business lounges, creating an environment where Victorian businesses can scale with confidence.
Natural light flows through thoughtfully designed offices while premium amenities including concierge services and end-of-trip facilities elevate the daily work experience. Tank Stream Labs Melbourne provides the flexibility growing companies need, from single-person setups to five-person teams, all within a refined Collins Street setting that commands respect.
Melbourne's financial district surrounds this prime location, with Flinders Street Station connecting teams across Victoria while Collins Street's renowned dining precinct offers endless networking opportunities. The intersection of Bourke Street and Elizabeth Street places over 95 cafes and restaurants within walking distance, complemented by premium fitness centres and essential banking services.
Tech startups, consulting firms, and professional services teams find their rhythm here, leveraging Tank Stream Labs' all-inclusive model to focus on growth rather than office management. This flexible office space Melbourne delivers represents the new standard for ambitious businesses seeking offices for lease in Victoria's commercial heart.
Read more
Natural light flows through thoughtfully designed offices while premium amenities including concierge services and end-of-trip facilities elevate the daily work experience. Tank Stream Labs Melbourne provides the flexibility growing companies need, from single-person setups to five-person teams, all within a refined Collins Street setting that commands respect.
Melbourne's financial district surrounds this prime location, with Flinders Street Station connecting teams across Victoria while Collins Street's renowned dining precinct offers endless networking opportunities. The intersection of Bourke Street and Elizabeth Street places over 95 cafes and restaurants within walking distance, complemented by premium fitness centres and essential banking services.
Tech startups, consulting firms, and professional services teams find their rhythm here, leveraging Tank Stream Labs' all-inclusive model to focus on growth rather than office management. This flexible office space Melbourne delivers represents the new standard for ambitious businesses seeking offices for lease in Victoria's commercial heart.
Key facts
| Product | Serviced offices |
| Operator | Tank Stream Labs |
| Address | 440 Collins Street, Melbourne VIC 3000 |
| Level | 5 & 6 |
| Offices available | 5 |
| Team sizes | 1–5 |
| Office sizes | 4–20 m² |
| From | $749 /mo all-inclusive |
| Terms | Flexible · all-inclusive |
| Reference | SS-136 · listed 10 Apr 2026 |
Included
24/7 Access
Air Con
All-inclusive
Business Lounge
Concierge
DDA Access
End-of-Trip
Location
Connecting streets
Streets intersecting or near Collins Street
Bourke Street
Flinders Street
Lonsdale Street
Elizabeth Street
Swanston Street
William Street
Queen Street
King Street
Spencer Street
Transport & access
Nearest transport options from this property
Flinders Street Station
Train station
200m
Collins Street Tram
Tram / Light rail
50m
Southern Cross Station
Train station
500m
Melbourne Central Station
Train station
400m
The operator
About Tank Stream Labs
View all Tank Stream Labs locations ›
Tank Stream Labs is a managed workspace operator with office space available at 440 Collins Street, Melbourne. Contact Sidespace to learn more about their portfolio.
More offices for lease nearby
14 suites available
Frequently asked questions
How much is office space at 440 Collins Street, Melbourne?
$749 to $3,999 a month is the current all-inclusive range at 440 Collins Street, Melbourne, across 5 available suites.
What does that work out to per desk at 440 Collins Street, Melbourne?
$749 to $1,049 per desk per month, based on the 5 priced suites listed at 440 Collins Street, Melbourne and the headcount each is sized for.
What size offices are available at 440 Collins Street, Melbourne?
5 private offices are listed at 440 Collins Street, Melbourne, suiting 1 to 5 people, measuring 4 to 20 m².
When is office space at 440 Collins Street, Melbourne available?
5 of the 5 listed offices are available for occupation at 440 Collins Street, Melbourne.
What is included in the rent at 440 Collins Street, Melbourne?
One monthly price covers 24/7 Access, Air Con, All-inclusive, Business Lounge, Concierge, DDA Access, plus utilities and internet — there is no separate outgoings bill on a serviced office.
How do you get to 440 Collins Street, Melbourne?
200m from Flinders Street Station, and 50m from Collins Street Tram. It sits between Bourke Street and Flinders Street.
Who operates 440 Collins Street, Melbourne?
Tank Stream Labs operates the 5 serviced offices listed at 440 Collins Street, Melbourne.
