5 offices available
Level 5 & 6, 440 Collins Street
From $749 /mo
1–5+ people
Area
122–455 m²
Available
14 suites
Rent
POA
Availability
Listed 4 Jun 2026 — availability confirmed on enquiry SS-533Level 10 Suite 2B
122 m²
POA
Available now
Level 11 Suite 3
146 m²
POA
Available now
Level 10 Suite 2A
160 m²
POA
Available now
Level 11 Suite 4
163 m²
POA
Available now
Level 12 Suite 2
249 m²
POA
Available now
Level 5 Suite 1
256 m²
POA
Available now
Level 1 Suite 2
286 m²
POA
Available now
Level 4 Suite 1
300 m²
POA
Available now
Level 6 Suite 2
302 m²
POA
Available now
Level 8 Suite 1
303 m²
POA
Available now
Level 3 Suite 1
334 m²
POA
Available now
Level 7 Suite 1
355 m²
POA
Available now
Level 1 Suite 1
356 m²
POA
Available now
Level 9 Suite 2
455 m²
POA
Available now
Need a larger floorplate?
455 m²
Why this building
Boutique CBD Off Collins Street
Premium workspace in Melbourne.
Fifteen-Level Modern Asset
Suites from 122 m² to 455 m² available for lease.
Suites From 122 m² To 455 m²
14 offices available – contact Sidespace to arrange an inspection.
The building
45 William Street is a fifteen-level modern CBD office asset occupying a prominent corner position at William Street and Flinders Lane — moments from Collins Street and the heart of Melbourne's premium commercial precinct.
The building offers efficient, column-free floorplates across whole-floor and part-floor tenancies ranging from 122 m² to 455 m². Fourteen vacant suites currently provide an exceptional opportunity for tenants seeking flexibility, quality and a recognised central address.
Tenants benefit from immediate access to the Flinders Lane laneway precinct, Southern Cross and Flinders Street stations, and the full breadth of Collins Street retail, dining and professional services.
Read more
The building offers efficient, column-free floorplates across whole-floor and part-floor tenancies ranging from 122 m² to 455 m². Fourteen vacant suites currently provide an exceptional opportunity for tenants seeking flexibility, quality and a recognised central address.
Tenants benefit from immediate access to the Flinders Lane laneway precinct, Southern Cross and Flinders Street stations, and the full breadth of Collins Street retail, dining and professional services.
Key facts
| Product | Commercial offices |
| Landlord | Henkell Brothers |
| Address | 45 William Street, Melbourne VIC 3000 |
| Suites available | 14 |
| Floor sizes | 122–455 m² |
| Reference | SS-533 · listed 4 Jun 2026 |
Location
Connecting streets
Streets intersecting or near William Street
Collins Street
Bourke Street
Flinders Street
Lonsdale Street
Elizabeth Street
Swanston 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 landlord
About Henkell Brothers
View all Henkell Brothers locations ›
Henkell Brothers is a commercial landlord with office space available at 45 William Street, Melbourne. Contact Sidespace to learn more about their portfolio.
More offices for lease nearby
5 offices available
Frequently asked questions
How much floor space is available at 45 William Street?
122 to 455 m² across 14 available tenancies at 45 William Street.
How do you get to 45 William Street?
200m from Flinders Street Station, and 50m from Collins Street Tram. It sits between Collins Street and Bourke Street.
Who is the landlord at 45 William Street?
Henkell Brothers manages the 14 available tenancies at 45 William Street.
