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Cross Westchester Office Center 399 Knollwood Rd 1,333 - 24,956 SF of 4-Star Office Space Available in White Plains, NY 10603

Office Spaces New York White Plains 399 Knollwood Rd, White Plains, NY 10603

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ALL AVAILABLE SPACES(11)

Display Rental Rate as

  • SPACE
  • SIZE
  • TERM
  • RENTAL RATE
  • SPACE USE
  • CONDITION
  • AVAILABLE
  • 1st Floor, Ste 100
  • 1,389 SF
  • Negotiable
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • Full Build-Out
  • 30 Days

Suite 100 features direct lobby exposure on the ground floor.

  • Listed lease rate plus proportional share of electrical cost
  • Mostly Open Floor Plan Layout
  • 1 Conference Room
  • Private Restrooms
  • Fully Built-Out as Standard Office
  • Fits 4 - 12 People
  • Central Air Conditioning
  • 1st Floor, Ste 101
  • 1,333 SF
  • Negotiable
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • Shell Space
  • 2026-07-31

Private office suite next to the lobby on the ground floor.

  • Listed lease rate plus proportional share of electrical cost
  • Fits 4 - 11 People
  • 1 Conference Room
  • Central Air Conditioning
  • Mostly Open Floor Plan Layout
  • 2 Private Offices
  • Space In Need of Renovation
  • Private Restrooms
  • 1st Floor, Ste 102
  • 3,395 SF
  • Negotiable
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • Full Build-Out
  • Now
  • Listed lease rate plus proportional share of electrical cost
  • Mostly Open Floor Plan Layout
  • 4 Private Offices
  • Fully Built-Out as Standard Office
  • Fits 9 - 28 People
  • 1 Conference Room
  • 1st Floor, Ste 103A
  • 1,479 SF
  • Negotiable
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • Full Build-Out
  • Now

Built space. Good light and views.

  • Listed lease rate plus proportional share of electrical cost
  • Fits 4 - 12 People
  • Fully Built-Out as Standard Office
  • 1st Floor, Ste Pre-Built
  • 2,095 SF
  • Negotiable
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • Full Build-Out
  • Now

Pre-built first floor office suites.. Rent available upon request

  • Listed lease rate plus proportional share of electrical cost
  • Open Floor Plan Layout
  • Space In Need of Renovation
  • Fully Built-Out as Standard Office
  • Fits 6 - 17 People
  • 1st Floor, Ste RAW
  • 3,026 SF
  • Negotiable
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • Shell Space
  • Now

Raw first floor space near the lobby area. Rent available upon request

  • Listed lease rate plus proportional share of electrical cost
  • Fits 8 - 25 People
  • Open Floor Plan Layout
  • Space In Need of Renovation
  • 2nd Floor, Ste 201
  • 1,864 SF
  • Negotiable
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • Full Build-Out
  • Now

Second floor office suite next to the share restrooms.

  • Fully Built-Out as Standard Office
  • 5 Private Offices
  • Fits 5 - 15 People
  • 2nd Floor, Ste 203
  • 1,933 SF
  • Negotiable
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • Partial Build-Out
  • Now

Second floor office suite close to the atrium area featuring an open floor plan.

  • Partially Built-Out as Standard Office
  • Fits 5 - 15 People
  • Open Floor Plan Layout
  • Partitioned Offices
  • 3rd Floor, Ste 300
  • 3,105 SF
  • Negotiable
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • Full Build-Out
  • Now
399 Knollwood Rd, White Plains, NY for lease Floor Plan- Image 1 of 1
Floor Plan

Third floor office space with an open layout

  • Listed lease rate plus proportional share of electrical cost
  • Open Floor Plan Layout
  • Space is in Excellent Condition
  • Fully Built-Out as Standard Office
  • Fits 8 - 25 People
  • 3rd Floor, Ste 301
  • 2,216 SF
  • Negotiable
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • -
  • Now
399 Knollwood Rd, White Plains, NY for lease Floor Plan- Image 1 of 1
Floor Plan

Private office suites space next to the elevator lobby.

  • Listed lease rate plus proportional share of electrical cost
  • Fits 6 - 18 People
  • 1 Conference Room
  • Mostly Open Floor Plan Layout
  • 7 Private Offices
  • Space is in Excellent Condition
  • 3rd Floor, Ste 309
  • 3,121 SF
  • Negotiable
  • Upon Request Upon Request Upon Request Upon Request
  • Office
  • Full Build-Out
  • 30 Days
399 Knollwood Rd, White Plains, NY for lease Floor Plan- Image 1 of 1
Floor Plan
  • Listed lease rate plus proportional share of electrical cost
  • Mostly Open Floor Plan Layout
  • 8 Private Offices
  • Fully Built-Out as Standard Office
  • Fits 8 - 25 People
  • Space is in Excellent Condition
Space Size Term Rental Rate Space Use Condition Available
1st Floor, Ste 100 1,389 SF Negotiable Upon Request Upon Request Upon Request Upon Request Office Full Build-Out 30 Days
1st Floor, Ste 101 1,333 SF Negotiable Upon Request Upon Request Upon Request Upon Request Office Shell Space 2026-07-31
1st Floor, Ste 102 3,395 SF Negotiable Upon Request Upon Request Upon Request Upon Request Office Full Build-Out Now
1st Floor, Ste 103A 1,479 SF Negotiable Upon Request Upon Request Upon Request Upon Request Office Full Build-Out Now
1st Floor, Ste Pre-Built 2,095 SF Negotiable Upon Request Upon Request Upon Request Upon Request Office Full Build-Out Now
1st Floor, Ste RAW 3,026 SF Negotiable Upon Request Upon Request Upon Request Upon Request Office Shell Space Now
2nd Floor, Ste 201 1,864 SF Negotiable Upon Request Upon Request Upon Request Upon Request Office Full Build-Out Now
2nd Floor, Ste 203 1,933 SF Negotiable Upon Request Upon Request Upon Request Upon Request Office Partial Build-Out Now
3rd Floor, Ste 300 3,105 SF Negotiable Upon Request Upon Request Upon Request Upon Request Office Full Build-Out Now
3rd Floor, Ste 301 2,216 SF Negotiable Upon Request Upon Request Upon Request Upon Request Office - Now
3rd Floor, Ste 309 3,121 SF Negotiable Upon Request Upon Request Upon Request Upon Request Office Full Build-Out 30 Days

1st Floor, Ste 100

Size
1,389 SF
Term
Negotiable
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Condition
Full Build-Out
Available
30 Days

1st Floor, Ste 101

Size
1,333 SF
Term
Negotiable
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Condition
Shell Space
Available
2026-07-31

1st Floor, Ste 102

Size
3,395 SF
Term
Negotiable
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Condition
Full Build-Out
Available
Now

1st Floor, Ste 103A

Size
1,479 SF
Term
Negotiable
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Condition
Full Build-Out
Available
Now

1st Floor, Ste Pre-Built

Size
2,095 SF
Term
Negotiable
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Condition
Full Build-Out
Available
Now

1st Floor, Ste RAW

Size
3,026 SF
Term
Negotiable
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Condition
Shell Space
Available
Now

2nd Floor, Ste 201

Size
1,864 SF
Term
Negotiable
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Condition
Full Build-Out
Available
Now

2nd Floor, Ste 203

Size
1,933 SF
Term
Negotiable
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Condition
Partial Build-Out
Available
Now

3rd Floor, Ste 300

Size
3,105 SF
Term
Negotiable
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Condition
Full Build-Out
Available
Now

3rd Floor, Ste 301

Size
2,216 SF
Term
Negotiable
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Condition
-
Available
Now

3rd Floor, Ste 309

Size
3,121 SF
Term
Negotiable
Rental Rate
Upon Request Upon Request Upon Request Upon Request
Space Use
Office
Condition
Full Build-Out
Available
30 Days

1st Floor, Ste 100

Size 1,389 SF
Term Negotiable
Rental Rate Upon Request
Space Use Office
Condition Full Build-Out
Available 30 Days

Suite 100 features direct lobby exposure on the ground floor.

  • Listed lease rate plus proportional share of electrical cost
  • Fully Built-Out as Standard Office
  • Mostly Open Floor Plan Layout
  • Fits 4 - 12 People
  • 1 Conference Room
  • Central Air Conditioning
  • Private Restrooms

1st Floor, Ste 101

Size 1,333 SF
Term Negotiable
Rental Rate Upon Request
Space Use Office
Condition Shell Space
Available 2026-07-31

Private office suite next to the lobby on the ground floor.

  • Listed lease rate plus proportional share of electrical cost
  • Mostly Open Floor Plan Layout
  • Fits 4 - 11 People
  • 2 Private Offices
  • 1 Conference Room
  • Space In Need of Renovation
  • Central Air Conditioning
  • Private Restrooms

1st Floor, Ste 102

Size 3,395 SF
Term Negotiable
Rental Rate Upon Request
Space Use Office
Condition Full Build-Out
Available Now

  • Listed lease rate plus proportional share of electrical cost
  • Fully Built-Out as Standard Office
  • Mostly Open Floor Plan Layout
  • Fits 9 - 28 People
  • 4 Private Offices
  • 1 Conference Room

1st Floor, Ste 103A

Size 1,479 SF
Term Negotiable
Rental Rate Upon Request
Space Use Office
Condition Full Build-Out
Available Now

Built space. Good light and views.

  • Listed lease rate plus proportional share of electrical cost
  • Fully Built-Out as Standard Office
  • Fits 4 - 12 People

1st Floor, Ste Pre-Built

Size 2,095 SF
Term Negotiable
Rental Rate Upon Request
Space Use Office
Condition Full Build-Out
Available Now

Pre-built first floor office suites.. Rent available upon request

  • Listed lease rate plus proportional share of electrical cost
  • Fully Built-Out as Standard Office
  • Open Floor Plan Layout
  • Fits 6 - 17 People
  • Space In Need of Renovation

1st Floor, Ste RAW

Size 3,026 SF
Term Negotiable
Rental Rate Upon Request
Space Use Office
Condition Shell Space
Available Now

Raw first floor space near the lobby area. Rent available upon request

  • Listed lease rate plus proportional share of electrical cost
  • Open Floor Plan Layout
  • Fits 8 - 25 People
  • Space In Need of Renovation

2nd Floor, Ste 201

Size 1,864 SF
Term Negotiable
Rental Rate Upon Request
Space Use Office
Condition Full Build-Out
Available Now

Second floor office suite next to the share restrooms.

  • Fully Built-Out as Standard Office
  • Fits 5 - 15 People
  • 5 Private Offices

2nd Floor, Ste 203

Size 1,933 SF
Term Negotiable
Rental Rate Upon Request
Space Use Office
Condition Partial Build-Out
Available Now

Second floor office suite close to the atrium area featuring an open floor plan.

  • Partially Built-Out as Standard Office
  • Open Floor Plan Layout
  • Fits 5 - 15 People
  • Partitioned Offices
1 of 1
VIDEOS
MATTERPORT 3D EXTERIOR
MATTERPORT 3D TOUR
PHOTOS
STREET VIEW STREET
MAP
399 Knollwood Rd, White Plains, NY for lease Floor Plan- Image 1 of 1
Floor Plan Suite 301 4,055 RSF

3rd Floor, Ste 300

399 Knollwood Rd, White Plains, NY for lease Floor Plan- Image 1 of 1
Floor Plan
Size 3,105 SF
Term Negotiable
Rental Rate Upon Request
Space Use Office
Condition Full Build-Out
Available Now

Third floor office space with an open layout

  • Listed lease rate plus proportional share of electrical cost
  • Fully Built-Out as Standard Office
  • Open Floor Plan Layout
  • Fits 8 - 25 People
  • Space is in Excellent Condition
1 of 1
VIDEOS
MATTERPORT 3D EXTERIOR
MATTERPORT 3D TOUR
PHOTOS
STREET VIEW STREET
MAP
399 Knollwood Rd, White Plains, NY for lease Floor Plan- Image 1 of 1
Floor Plan Suite 301 4,055 RSF

3rd Floor, Ste 301

399 Knollwood Rd, White Plains, NY for lease Floor Plan- Image 1 of 1
Floor Plan
Size 2,216 SF
Term Negotiable
Rental Rate Upon Request
Space Use Office
Condition -
Available Now

Private office suites space next to the elevator lobby.

  • Listed lease rate plus proportional share of electrical cost
  • Mostly Open Floor Plan Layout
  • Fits 6 - 18 People
  • 7 Private Offices
  • 1 Conference Room
  • Space is in Excellent Condition
1 of 1
VIDEOS
MATTERPORT 3D EXTERIOR
MATTERPORT 3D TOUR
PHOTOS
STREET VIEW STREET
MAP
399 Knollwood Rd, White Plains, NY for lease Floor Plan- Image 1 of 1
4,333 RSF Floor Plan

3rd Floor, Ste 309

399 Knollwood Rd, White Plains, NY for lease Floor Plan- Image 1 of 1
Floor Plan
Size 3,121 SF
Term Negotiable
Rental Rate Upon Request
Space Use Office
Condition Full Build-Out
Available 30 Days

  • Listed lease rate plus proportional share of electrical cost
  • Fully Built-Out as Standard Office
  • Mostly Open Floor Plan Layout
  • Fits 8 - 25 People
  • 8 Private Offices
  • Space is in Excellent Condition

FEATURES AND AMENITIES

  • 24 Hour Access
  • Atrium
  • Bus Line
  • Fitness Center
  • Food Service
  • Property Manager on Site
  • On-Site Security Staff

PROPERTY FACTS

Building Type
Office
Year Built/Renovated
1985/2003
LoopNet Rating
4 Star
Building Height
3 Stories
Building Size
124,932 SF
Building Class
A
Typical Floor Size
36,647 SF
Unfinished Ceiling Height
15’
Parking
349 Surface Parking Spaces
Covered Parking

ATTACHMENTS

399 Knollwood Rd
399 Knollwaod Availabilities Jan 2026
1 1
399 Knollwood Rd, White Plains, NY - AERIAL map view - Image1
399 Knollwood Rd, White Plains, NY - AERIAL map view - Image2
(203) 247-2891

Still interested?

Contact the brokers for more information about this property

CONTACTS

  • Listing ID: 25930177

  • Date on Market: 2026-01-23

  • Last Updated:

  • Address: 399 Knollwood Rd, White Plains, NY 10603

The North White Plains Office Property at 399 Knollwood Rd, White Plains, NY 10603 is currently available. Contact RM Friedland for more information.

OFFICE PROPERTIES IN NEARBY NEIGHBORHOODS

1 of 15
VIDEOS
MATTERPORT 3D EXTERIOR
MATTERPORT 3D TOUR
PHOTOS
STREET VIEW STREET
MAP
399 Knollwood Rd, White Plains, NY for lease Building Photo- Image 1 of 15
Primary Photo
399 Knollwood Rd, White Plains, NY for lease Building Photo- Image 2 of 15
Building Photo
399 Knollwood Rd, White Plains, NY for lease Building Photo- Image 3 of 15
Building Photo
399 Knollwood Rd, White Plains, NY for lease Aerial- Image 4 of 15
Aerial
399 Knollwood Rd, White Plains, NY for lease Aerial- Image 5 of 15
Aerial
399 Knollwood Rd, White Plains, NY for lease Lobby- Image 6 of 15
Lobby
399 Knollwood Rd, White Plains, NY for lease Lobby- Image 7 of 15
Lobby
399 Knollwood Rd, White Plains, NY for lease Interior Photo- Image 8 of 15
Building Photo
399 Knollwood Rd, White Plains, NY for lease Floor Plan- Image 9 of 15
2,137 RSF Floor Plan
399 Knollwood Rd, White Plains, NY for lease Floor Plan- Image 10 of 15
2,305 RSF Floor Plan
399 Knollwood Rd, White Plains, NY for lease Floor Plan- Image 11 of 15
4,333 RSF Floor Plan
399 Knollwood Rd, White Plains, NY for lease Floor Plan- Image 12 of 15
1,445 RSF Floor Plan
399 Knollwood Rd, White Plains, NY for lease Floor Plan- Image 13 of 15
Floor Plan Suite 301 4,055 RSF
399 Knollwood Rd, White Plains, NY for lease Plat Map- Image 14 of 15
Plat Map
1 of 1

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Cross Westchester Office Center | 399 Knollwood Rd
(203) 247-2891 x

Cross Westchester Office Center | 399 Knollwood Rd

Dillon Foley
(203) 247-2891

Christopher O'Callaghan
(914) 968-8500

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