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Highlights

  • Located on Castlereagh Street between Market and Park Streets
  • Close proximity to Hyde Park, Pitt Street Mall, and Westfield Sydney
  • Range of office tenancies, including full-floor options
  • Strong public transport access via train, metro, light rail, and bus services

All Available Spaces(5)

Display Rental Rate as

  • Space
  • Size
  • Term
  • Rental Rate
  • Space Use
  • Condition
  • Available
  • 2nd Floor
  • 1,593 SF
  • 3-10 Years
  • $80.43 CAD/SF/YR $6.70 CAD/SF/MO $128,128 CAD/YR $10,677 CAD/MO
  • Office
  • Full Build-Out
  • Now

Level 2 comprises an approximately 148 sqm full-floor office tenancy. The floor is provided in a fitted configuration, incorporating a mix of open plan workspace, meeting room accommodation, and supporting amenities. The layout is suitable for immediate occupation, subject to incoming tenant requirements.

  • Fully Built-Out as Standard Office
  • Partitioned Offices
  • Central Air Conditioning
  • Fully Carpeted
  • Recessed Lighting
  • Open-Plan
  • Wheelchair Accessible
  • Mostly Open Floor Plan Layout
  • Space is in Excellent Condition
  • Wi-Fi Connectivity
  • Secure Storage
  • Natural Light
  • Smoke Detector
  • 3rd Floor
  • 1,593 SF
  • 3-10 Years
  • $80.43 CAD/SF/YR $6.70 CAD/SF/MO $128,128 CAD/YR $10,677 CAD/MO
  • Office
  • Full Build-Out
  • Now

Level 3 offers an approximately 148 sqm full-floor office with an existing fit-out in place. The floorplate allows for efficient workspace planning and includes meeting and breakout areas alongside open plan workstations.

  • Fully Built-Out as Standard Office
  • Partitioned Offices
  • Central Air Conditioning
  • Fully Carpeted
  • Recessed Lighting
  • Open-Plan
  • Wheelchair Accessible
  • Mostly Open Floor Plan Layout
  • Space is in Excellent Condition
  • Wi-Fi Connectivity
  • Secure Storage
  • Natural Light
  • Smoke Detector
  • 4th Floor
  • 1,593 SF
  • 3-10 Years
  • $80.43 CAD/SF/YR $6.70 CAD/SF/MO $128,128 CAD/YR $10,677 CAD/MO
  • Office
  • Full Build-Out
  • Now

Level 4 comprises a full-floor office tenancy of approximately 148 sqm. The space is delivered with a completed fit-out, providing a practical layout that includes workstations, meeting facilities, and internal amenities.

  • Fully Built-Out as Standard Office
  • Partitioned Offices
  • Central Air Conditioning
  • Fully Carpeted
  • Recessed Lighting
  • Open-Plan
  • Wheelchair Accessible
  • Mostly Open Floor Plan Layout
  • Space is in Excellent Condition
  • Wi-Fi Connectivity
  • Secure Storage
  • Natural Light
  • Smoke Detector
  • 5th Floor
  • 1,593 SF
  • 3-10 Years
  • $80.43 CAD/SF/YR $6.70 CAD/SF/MO $128,128 CAD/YR $10,677 CAD/MO
  • Office
  • Full Build-Out
  • Now

Level 5 provides an approximately 148 sqm fitted office floor within the building. The tenancy is configured to support a range of office users, with a balance of open plan workspace and enclosed areas.

  • Fully Built-Out as Standard Office
  • Partitioned Offices
  • Central Air Conditioning
  • Fully Carpeted
  • Recessed Lighting
  • Open-Plan
  • Wheelchair Accessible
  • Mostly Open Floor Plan Layout
  • Space is in Excellent Condition
  • Wi-Fi Connectivity
  • Secure Storage
  • Natural Light
  • Smoke Detector
  • 6th Floor
  • 1,593 SF
  • 3-10 Years
  • $80.43 CAD/SF/YR $6.70 CAD/SF/MO $128,128 CAD/YR $10,677 CAD/MO
  • Office
  • Full Build-Out
  • Now

Level 6 comprises a full-floor office tenancy of approximately 148 sqm. The floor is offered in a fitted condition, enabling straightforward occupation with minimal adaptation required, subject to tenant needs.

  • Fully Built-Out as Standard Office
  • Partitioned Offices
  • Central Air Conditioning
  • Fully Carpeted
  • Recessed Lighting
  • Open-Plan
  • Wheelchair Accessible
  • Mostly Open Floor Plan Layout
  • Space is in Excellent Condition
  • Wi-Fi Connectivity
  • Secure Storage
  • Natural Light
  • Smoke Detector
Space Size Term Rental Rate Space Use Condition Available
2nd Floor 1,593 SF 3-10 Years $80.43 CAD/SF/YR $6.70 CAD/SF/MO $128,128 CAD/YR $10,677 CAD/MO Office Full Build-Out Now
3rd Floor 1,593 SF 3-10 Years $80.43 CAD/SF/YR $6.70 CAD/SF/MO $128,128 CAD/YR $10,677 CAD/MO Office Full Build-Out Now
4th Floor 1,593 SF 3-10 Years $80.43 CAD/SF/YR $6.70 CAD/SF/MO $128,128 CAD/YR $10,677 CAD/MO Office Full Build-Out Now
5th Floor 1,593 SF 3-10 Years $80.43 CAD/SF/YR $6.70 CAD/SF/MO $128,128 CAD/YR $10,677 CAD/MO Office Full Build-Out Now
6th Floor 1,593 SF 3-10 Years $80.43 CAD/SF/YR $6.70 CAD/SF/MO $128,128 CAD/YR $10,677 CAD/MO Office Full Build-Out Now

2nd Floor

Size
1,593 SF
Term
3-10 Years
Rental Rate
$80.43 CAD/SF/YR $6.70 CAD/SF/MO $128,128 CAD/YR $10,677 CAD/MO
Space Use
Office
Condition
Full Build-Out
Available
Now

3rd Floor

Size
1,593 SF
Term
3-10 Years
Rental Rate
$80.43 CAD/SF/YR $6.70 CAD/SF/MO $128,128 CAD/YR $10,677 CAD/MO
Space Use
Office
Condition
Full Build-Out
Available
Now

4th Floor

Size
1,593 SF
Term
3-10 Years
Rental Rate
$80.43 CAD/SF/YR $6.70 CAD/SF/MO $128,128 CAD/YR $10,677 CAD/MO
Space Use
Office
Condition
Full Build-Out
Available
Now

5th Floor

Size
1,593 SF
Term
3-10 Years
Rental Rate
$80.43 CAD/SF/YR $6.70 CAD/SF/MO $128,128 CAD/YR $10,677 CAD/MO
Space Use
Office
Condition
Full Build-Out
Available
Now

6th Floor

Size
1,593 SF
Term
3-10 Years
Rental Rate
$80.43 CAD/SF/YR $6.70 CAD/SF/MO $128,128 CAD/YR $10,677 CAD/MO
Space Use
Office
Condition
Full Build-Out
Available
Now

2nd Floor

Size 1,593 SF
Term 3-10 Years
Rental Rate $80.43 CAD/SF/YR
Space Use Office
Condition Full Build-Out
Available Now

Level 2 comprises an approximately 148 sqm full-floor office tenancy. The floor is provided in a fitted configuration, incorporating a mix of open plan workspace, meeting room accommodation, and supporting amenities. The layout is suitable for immediate occupation, subject to incoming tenant requirements.

  • Fully Built-Out as Standard Office
  • Mostly Open Floor Plan Layout
  • Partitioned Offices
  • Space is in Excellent Condition
  • Central Air Conditioning
  • Wi-Fi Connectivity
  • Fully Carpeted
  • Secure Storage
  • Recessed Lighting
  • Natural Light
  • Open-Plan
  • Smoke Detector
  • Wheelchair Accessible

3rd Floor

Size 1,593 SF
Term 3-10 Years
Rental Rate $80.43 CAD/SF/YR
Space Use Office
Condition Full Build-Out
Available Now

Level 3 offers an approximately 148 sqm full-floor office with an existing fit-out in place. The floorplate allows for efficient workspace planning and includes meeting and breakout areas alongside open plan workstations.

  • Fully Built-Out as Standard Office
  • Mostly Open Floor Plan Layout
  • Partitioned Offices
  • Space is in Excellent Condition
  • Central Air Conditioning
  • Wi-Fi Connectivity
  • Fully Carpeted
  • Secure Storage
  • Recessed Lighting
  • Natural Light
  • Open-Plan
  • Smoke Detector
  • Wheelchair Accessible

4th Floor

Size 1,593 SF
Term 3-10 Years
Rental Rate $80.43 CAD/SF/YR
Space Use Office
Condition Full Build-Out
Available Now

Level 4 comprises a full-floor office tenancy of approximately 148 sqm. The space is delivered with a completed fit-out, providing a practical layout that includes workstations, meeting facilities, and internal amenities.

  • Fully Built-Out as Standard Office
  • Mostly Open Floor Plan Layout
  • Partitioned Offices
  • Space is in Excellent Condition
  • Central Air Conditioning
  • Wi-Fi Connectivity
  • Fully Carpeted
  • Secure Storage
  • Recessed Lighting
  • Natural Light
  • Open-Plan
  • Smoke Detector
  • Wheelchair Accessible

5th Floor

Size 1,593 SF
Term 3-10 Years
Rental Rate $80.43 CAD/SF/YR
Space Use Office
Condition Full Build-Out
Available Now

Level 5 provides an approximately 148 sqm fitted office floor within the building. The tenancy is configured to support a range of office users, with a balance of open plan workspace and enclosed areas.

  • Fully Built-Out as Standard Office
  • Mostly Open Floor Plan Layout
  • Partitioned Offices
  • Space is in Excellent Condition
  • Central Air Conditioning
  • Wi-Fi Connectivity
  • Fully Carpeted
  • Secure Storage
  • Recessed Lighting
  • Natural Light
  • Open-Plan
  • Smoke Detector
  • Wheelchair Accessible

6th Floor

Size 1,593 SF
Term 3-10 Years
Rental Rate $80.43 CAD/SF/YR
Space Use Office
Condition Full Build-Out
Available Now

Level 6 comprises a full-floor office tenancy of approximately 148 sqm. The floor is offered in a fitted condition, enabling straightforward occupation with minimal adaptation required, subject to tenant needs.

  • Fully Built-Out as Standard Office
  • Mostly Open Floor Plan Layout
  • Partitioned Offices
  • Space is in Excellent Condition
  • Central Air Conditioning
  • Wi-Fi Connectivity
  • Fully Carpeted
  • Secure Storage
  • Recessed Lighting
  • Natural Light
  • Open-Plan
  • Smoke Detector
  • Wheelchair Accessible

Property Overview

122 Castlereagh Street is a commercial office building located on the eastern side of Castlereagh Street in the core of the Sydney CBD, positioned between Market Street and Park Street. The property is commonly referred to as Highmount House and accommodates a range of office tenancies across multiple levels. The building provides full-floor and part-floor office spaces of varying sizes, with configurations that include fitted and open plan layouts depending on the tenancy. Upper-level floors benefit from outlooks over Castlereagh Street and access to natural light. The property is situated within close proximity to Hyde Park, Pitt Street Mall, and Westfield Sydney, and is surrounded by established retail, commercial, and hospitality uses. Public transport connectivity is strong, with nearby access to St James Station, Gadigal Metro Station, bus services, and the George Street light rail network.

  • Bus Line
  • Security System
  • Wheelchair Accessible
  • Kitchen
  • Accent Lighting
  • Reception
  • Storage Space
  • Fully Carpeted
  • High Ceilings
  • Direct Elevator Exposure
  • Natural Light
  • Open-Plan
  • Partitioned Offices
  • Recessed Lighting
  • Secure Storage
  • Wi-Fi
  • Air Conditioning
  • Smoke Detector

Property Facts

Building Type
Office
Building Height
9 Stories
Building Size
20,042 SF
Building Class
B
Typical Floor Size
2,185 SF
  • Listing ID: 39666397

  • Date on Market: 2026-03-05

  • Last Updated:

  • Address: 122 Castlereagh St, Sydney, NSW 2000

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