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444 Castro Street 444 Castro St 4,519 - 46,226 SF of 4-Star Office Space Available in Mountain View, CA 94041
HIGHLIGHTS
- Well Health & Safety Rated Building & Certified Leed Gold Building with Responsive, local ownership
- Common area conference room-free of charge for tenants and A new fitness center with showers and lockers
- Onsite property management, engineers and building security 24/7
- $2.60 estimated operating expenses to full service
- Free garage parking of 2.52/1000 with 10 EV charges in the garage
ALL AVAILABLE SPACES(5)
Display Rental Rate as
- SPACE
- SIZE
- TERM
- RENTAL RATE
- SPACE USE
- CONDITION
- AVAILABLE
Class A office space. 41,707 sf available by combining the 5th, 6th, 8th, and 9th floors.
- Lease rate does not include utilities, property expenses or building services
- Mostly Open Floor Plan Layout
- Can be combined with additional space(s) for up to 20,886 SF of adjacent space
- Fully Built-Out as Standard Office
- Space is in Excellent Condition
Class A office space. 41,707 sf available by combining the 5th, 6th, 8th, and 9th floors.
- Lease rate does not include utilities, property expenses or building services
- Mostly Open Floor Plan Layout
- 1 Conference Room
- Can be combined with additional space(s) for up to 20,886 SF of adjacent space
- Fully Built-Out as Standard Office
- 10 Private Offices
- Space is in Excellent Condition
Class A Office Space. 41,707 sf available by combining the 5th, 6th, 8th, and 9th floors.
- Lease rate does not include utilities, property expenses or building services
- Mostly Open Floor Plan Layout
- 2 Conference Rooms
- Finished Ceilings: 10’
- Private Restrooms
- Fully Built-Out as Standard Office
- 12 Private Offices
- 12 Workstations
- Can be combined with additional space(s) for up to 20,821 SF of adjacent space
Class A Office Space. 41,707 sf available by combining the 5th, 6th, 8th, and 9th floors.
- Lease rate does not include utilities, property expenses or building services
- Mostly Open Floor Plan Layout
- 2 Conference Rooms
- Finished Ceilings: 11’
- Private Restrooms
- Fully Built-Out as Standard Office
- 2 Private Offices
- 20 Workstations
- Can be combined with additional space(s) for up to 20,821 SF of adjacent space
Class A office space.. 4,519 sf (available now).
- Lease rate does not include utilities, property expenses or building services
- Mostly Open Floor Plan Layout
- 2 Conference Rooms
- Private Restrooms
- Fully Built-Out as Standard Office
- 2 Private Offices
- Space is in Excellent Condition
| Space | Size | Term | Rental Rate | Space Use | Condition | Available |
| 5th Floor, Ste 500 | 10,414 SF | Negotiable | $129.82 CAD/SF/YR $10.82 CAD/SF/MO $1,351,951 CAD/YR $112,663 CAD/MO | Office | Full Build-Out | 2026-11-01 |
| 6th Floor, Ste 600 | 10,472 SF | Negotiable | $129.82 CAD/SF/YR $10.82 CAD/SF/MO $1,359,481 CAD/YR $113,290 CAD/MO | Office | Full Build-Out | 2026-11-01 |
| 8th Floor, Ste 800 | 10,413 SF | Negotiable | $129.82 CAD/SF/YR $10.82 CAD/SF/MO $1,351,822 CAD/YR $112,652 CAD/MO | Office | Full Build-Out | 2026-07-01 |
| 9th Floor, Ste 900 | 10,408 SF | Negotiable | $129.82 CAD/SF/YR $10.82 CAD/SF/MO $1,351,172 CAD/YR $112,598 CAD/MO | Office | Full Build-Out | 2026-07-01 |
| 12th Floor, Ste 1210 | 4,519 SF | Negotiable | $129.82 CAD/SF/YR $10.82 CAD/SF/MO $586,659 CAD/YR $48,888 CAD/MO | Office | Full Build-Out | Now |
5th Floor, Ste 500
| Size |
| 10,414 SF |
| Term |
| Negotiable |
| Rental Rate |
| $129.82 CAD/SF/YR $10.82 CAD/SF/MO $1,351,951 CAD/YR $112,663 CAD/MO |
| Space Use |
| Office |
| Condition |
| Full Build-Out |
| Available |
| 2026-11-01 |
6th Floor, Ste 600
| Size |
| 10,472 SF |
| Term |
| Negotiable |
| Rental Rate |
| $129.82 CAD/SF/YR $10.82 CAD/SF/MO $1,359,481 CAD/YR $113,290 CAD/MO |
| Space Use |
| Office |
| Condition |
| Full Build-Out |
| Available |
| 2026-11-01 |
8th Floor, Ste 800
| Size |
| 10,413 SF |
| Term |
| Negotiable |
| Rental Rate |
| $129.82 CAD/SF/YR $10.82 CAD/SF/MO $1,351,822 CAD/YR $112,652 CAD/MO |
| Space Use |
| Office |
| Condition |
| Full Build-Out |
| Available |
| 2026-07-01 |
9th Floor, Ste 900
| Size |
| 10,408 SF |
| Term |
| Negotiable |
| Rental Rate |
| $129.82 CAD/SF/YR $10.82 CAD/SF/MO $1,351,172 CAD/YR $112,598 CAD/MO |
| Space Use |
| Office |
| Condition |
| Full Build-Out |
| Available |
| 2026-07-01 |
12th Floor, Ste 1210
| Size |
| 4,519 SF |
| Term |
| Negotiable |
| Rental Rate |
| $129.82 CAD/SF/YR $10.82 CAD/SF/MO $586,659 CAD/YR $48,888 CAD/MO |
| Space Use |
| Office |
| Condition |
| Full Build-Out |
| Available |
| Now |
5th Floor, Ste 500
| Size | 10,414 SF |
| Term | Negotiable |
| Rental Rate | $129.82 CAD/SF/YR |
| Space Use | Office |
| Condition | Full Build-Out |
| Available | 2026-11-01 |
Class A office space. 41,707 sf available by combining the 5th, 6th, 8th, and 9th floors.
- Lease rate does not include utilities, property expenses or building services
- Fully Built-Out as Standard Office
- Mostly Open Floor Plan Layout
- Space is in Excellent Condition
- Can be combined with additional space(s) for up to 20,886 SF of adjacent space
6th Floor, Ste 600
| Size | 10,472 SF |
| Term | Negotiable |
| Rental Rate | $129.82 CAD/SF/YR |
| Space Use | Office |
| Condition | Full Build-Out |
| Available | 2026-11-01 |
Class A office space. 41,707 sf available by combining the 5th, 6th, 8th, and 9th floors.
- Lease rate does not include utilities, property expenses or building services
- Fully Built-Out as Standard Office
- Mostly Open Floor Plan Layout
- 10 Private Offices
- 1 Conference Room
- Space is in Excellent Condition
- Can be combined with additional space(s) for up to 20,886 SF of adjacent space
8th Floor, Ste 800
| Size | 10,413 SF |
| Term | Negotiable |
| Rental Rate | $129.82 CAD/SF/YR |
| Space Use | Office |
| Condition | Full Build-Out |
| Available | 2026-07-01 |
Class A Office Space. 41,707 sf available by combining the 5th, 6th, 8th, and 9th floors.
- Lease rate does not include utilities, property expenses or building services
- Fully Built-Out as Standard Office
- Mostly Open Floor Plan Layout
- 12 Private Offices
- 2 Conference Rooms
- 12 Workstations
- Finished Ceilings: 10’
- Can be combined with additional space(s) for up to 20,821 SF of adjacent space
- Private Restrooms
9th Floor, Ste 900
| Size | 10,408 SF |
| Term | Negotiable |
| Rental Rate | $129.82 CAD/SF/YR |
| Space Use | Office |
| Condition | Full Build-Out |
| Available | 2026-07-01 |
Class A Office Space. 41,707 sf available by combining the 5th, 6th, 8th, and 9th floors.
- Lease rate does not include utilities, property expenses or building services
- Fully Built-Out as Standard Office
- Mostly Open Floor Plan Layout
- 2 Private Offices
- 2 Conference Rooms
- 20 Workstations
- Finished Ceilings: 11’
- Can be combined with additional space(s) for up to 20,821 SF of adjacent space
- Private Restrooms
12th Floor, Ste 1210
| Size | 4,519 SF |
| Term | Negotiable |
| Rental Rate | $129.82 CAD/SF/YR |
| Space Use | Office |
| Condition | Full Build-Out |
| Available | Now |
Class A office space.. 4,519 sf (available now).
- Lease rate does not include utilities, property expenses or building services
- Fully Built-Out as Standard Office
- Mostly Open Floor Plan Layout
- 2 Private Offices
- 2 Conference Rooms
- Space is in Excellent Condition
- Private Restrooms
PROPERTY OVERVIEW
41,707 sf available by combining the 5th, 6th, 8th, and 9th floors. Office building located in Downtown Mountain View. Property was built in 1971 and renovated in 2001. Certified Leed Gold Building, responsive local ownership, new fitness center, new showers with lockers, free parking of 2.52/1000, bicycle parking, 10 EV charges in the garage. Onsite property management and building security 24/7. 2025 operating expenses are $2.60 to full service.
- Banking
- Controlled Access
- Courtyard
- Fitness Center
- Food Service
- Property Manager on Site
- Security System
- Energy Star Labeled
- Car Charging Station
- Bicycle Storage
- Shower Facilities
PROPERTY FACTS
SUSTAINABILITY
SUSTAINABILITY
ENERGY STAR® Energy Star is a program run by the U.S. Environmental Protection Agency (EPA) and U.S. Department of Energy (DOE) that promotes energy efficiency and provides simple, credible, and unbiased information that consumers and businesses rely on to make well-informed decisions. Thousands of industrial, commercial, utility, state, and local organizations partner with the EPA to deliver cost-saving energy efficiency solutions that protect the climate while improving air quality and protecting public health. The Energy Star score compares a building’s energy performance to similar buildings nationwide and accounts for differences in operating conditions, regional weather data, and other important considerations. Certification is given on an annual basis, so a building must maintain its high performance to be certified year to year. To be eligible for Energy Star certification, a building must earn a score of 75 or higher on EPA’s 1 – 100 scale, indicating that it performs better than at least 75 percent of similar buildings nationwide. This 1 – 100 Energy Star score is based on the actual, measured energy use of a building and is calculated within EPA’s Energy Star Portfolio Manager tool.
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444 Castro Street | 444 Castro St
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