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444 Castro St
Mountain View, CA 94041 Downtown Mountain View

$7.75 USD/SF/MO - $93.00 USD/SF/YR

Office For Lease  •  1,490+ SF

Property Details

  • Property Type Office
  • Year Built 1971
  • Total Building Size 179,937 SF
  • Tenancy Multiple
  • Building Class A
  • Zoning P(19), Mountain View
60 Transit Score
70 Walk Score

5 Spaces Available

Name Space Use Size Rent Details
3rd Floor Ste 320 Office 5,297 SF $63.00 USD/SF/YR
As is. Available 08/01/2026. Multi-million-dollar renovation with on-site amenities including: common conference room, fitness room with showers and lockers, 10 EV chargers in the garage, outdoor communal area, banking and retail, property management and engineering on-site, 24/7 security. Walking Distance to Great Downtown Amenities.

  • Date available: Aug 2026
  • Lease term: Negotiable
  • Service type: Triple Net
  • Built out as: Standard Office
  • Space Type: Relet
5th Floor Ste 500 Office 10,414 SF $93.00 USD/SF/YR
Class A office space. 41,707 sf available by combining the 5th, 6th, 8th, and 9th floors.
Open ceiling tech buildout. Full floor available. Multi-million-dollar renovation with on-site amenities including: common conference room, fitness room with showers and lockers, 10 EV chargers in the garage, outdoor communal area, banking and retail, property management and engineering on site, 24/7 security. Parking is underground and free. WELL Health Safety Rated building. Certified LEED Gold. $2.7 OpEx. to full service

  • Date available: Nov 2026
  • Lease term: Negotiable
  • Service type: Triple Net
  • Built out as: Standard Office
  • Space Type: Relet
  • In Contiguous block: 20,886 SF
6th Floor Ste 600 Office 1,490-10,472 SF $7.75 USD/SF/MO
Floor in the process of being demised with flexible sizes. 
Class A office space. 41,707 sf available by combining the 5th, 6th, 8th, and 9th floors.
Full floor available. Multi-million-dollar renovation with on-site amenities including: common conference room, fitness room with showers and lockers, 10 EV chargers in the garage, outdoor communal area, banking and retail, property management and engineering on site, 24/7 security. Parking is underground and free. WELL Health Safety Rated building. Certified LEED Gold. $2.75 OpEx. to full service

  • Date available: Jul 2026
  • Lease term: Negotiable
  • Service type: Triple Net
  • Built out as: Standard Office
  • Space Type: Relet
  • In Contiguous block: 20,886 SF
8th Floor Ste 800 Office 10,413 SF $93.00 USD/SF/YR
Full floor available. Multi-million-dollar renovation with on-site amenities including: common conference room, fitness room with showers and lockers, 10 EV chargers in the garage, outdoor communal area, banking and retail, property management and engineering on site, 24/7 security. Parking is underground and free. WELL Health Safety Rated building. Certified LEED Gold. $2.75 OpEx. to full service

  • Date available: Jul 2026
  • Lease term: Negotiable
  • Service type: Triple Net
  • Built out as: Standard Office
  • Space Type: New
  • In Contiguous block: 20,821 SF
9th Floor Ste 900 Office 10,408 SF $93.00 USD/SF/YR
Class A Office Space.  41,707 sf available by combining the 5th, 6th, 8th, and 9th floors.
Full floor available. Multi-million-dollar renovation with on-site amenities including: common conference room, fitness room with showers and lockers, 10 EV chargers in the garage, outdoor communal area, banking and retail, property management and engineering on site, 24/7 security. Parking is underground and free. WELL Health Safety Rated building. Certified LEED Gold. $2.75 OpEx. to full service

  • Date available: Jul 2026
  • Lease term: Negotiable
  • Service type: Triple Net
  • Built out as: Standard Office
  • Space Type: New
  • In Contiguous block: 20,821 SF

Description

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.  2026 operating expenses are $2.75 to Full Service.

Highlights

Well Health & Safety Rated Building & Certified Leed Gold Building with Responsive, local ownership
$2.75 estimated operating expenses to Full Service
Common area conference room-free of charge for tenants and new fitness center with showers and lockers
Free garage parking of 2.52/1000 with 10 EV charges in the garage
Onsite property management, engineers and building security 24/7
Beautiful outdoor courtyard and communal gathering area

Property Flyers

Green Rating

EnergyStar Yes LEED Gold

Amenities

  • 24 Hour Access
  • Banking
  • Controlled Access
  • Courtyard
  • Fitness Center
  • Property Manager on Site
  • Security System
  • Car Charging Station
  • Outdoor Seating
  • Fire Pits
  • Air Conditioning
  • On-Site Security Staff

Public Transportation

Commuter RailDriveWalkDistance
2 min 11 min 0.6 mi
5 min - 2.0 mi
AirportDriveWalkDistance
Norman Y Mineta San Jose International 17 min - 10.2 mi
San Francisco International 35 min - 25.6 mi
Metro Oakland International 48 min - 34.4 mi

Parking Details

Parking Available: Yes
Reserved: No
Type: Surface
Included in Rent: Yes
Christine Slonek 408-489-3563 Newmark
Christine Slonek 408-489-3563 Newmark