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Joseph Siewick Dr (Fair Oaks Medical Plaza) Fairfax, VA 22033 1,273 - 24,696 sq ft of Medical Space Available

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PARK HIGHLIGHTS

  • Located on the Inova Fair Oaks Medical Campus housing a top-ranked hospital, medical office buildings, and an abundance of free parking options.
  • One of the only large blocks of office/medical space in the Fairfax area with over 13,000 SF of contiguous space available
  • Surrounded by affluent residential neighborhoods with an assisted living facility and childcare options located on the medical campus.
  • Directly adjacent to the Inova Fair Oaks Hospital and connected to the facility by a covered walkway.
  • Clinical Spec Suites and Move-in ready options available along with generous improvement packages for customizable spaces
  • Other specialties in the buildings include: cardiology, OB/GYN, internal medicine, orthopedics, rheumatology, otolaryngology, and gastroenterology.

PARK FACTS

Total Space Available 24,696 sq ft
Park Type Office Park
Features Property Manager on Site

ALL AVAILABLE SPACES(11)

Display Rent as

Joseph Siewick Dr (Fair Oaks Medical Plaza)
3650 Joseph Siewick Dr - Fairfax Family Practice Walk-In Clinic
1,273 - 14,120 sq ft | Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application | View Building Details
Property Type/Class
Office/B
Year Built
1993
Property Size
82,032 sq ft
Number of Floors
4
Typical Floor Size
81,620 sq ft
  • SPACE
  • SIZE
  • TERM
  • RATE
  • USE
  • CONDITION
  • AVAILABLE
  • 1st Floor, Ste 102
  • 4,254 sq ft
  • Negotiable
  • Upon Application Upon Application Upon Application Upon Application
  • Medical
  • -
  • Now

Whitebox space open to any and all specialties.

  • 1st Floor, Ste 103
  • 2,191 sq ft
  • Negotiable
  • Upon Application Upon Application Upon Application Upon Application
  • Medical
  • Full Fit-Out
  • Now

Brand New Built-out Medical Spec Suite. 6 exam rooms with sinks, restroom, 3 provider offices and break room. Virtual walk thru link: https://my.matterport.com/show/?m=XJz4gC4jZfA

  • Fully Fit-Out as Standard Medical Space
  • Prestigious Space
  • 1st Floor, Ste 106
  • 1,859 sq ft
  • Negotiable
  • Upon Application Upon Application Upon Application Upon Application
  • Medical
  • Full Fit-Out
  • Now
  • 2nd Floor, Ste 200
  • 2,860 sq ft
  • Negotiable
  • Upon Application Upon Application Upon Application Upon Application
  • Medical
  • Full Fit-Out
  • Now

Move-in ready Medical Space! Landlord will retrofit for any specialty/use if needed. 2nd floor is on ground level and the space has lobby exposure located at the entrance of the building. Landlord has updated paint/flooring/lighting. Space plan attached. Perfect for almost any specialty

  • Fully Fit-Out as Standard Medical Space
  • Space is in Excellent Condition
  • 2nd Floor, Ste 206
  • 1,683 sq ft
  • Negotiable
  • Upon Application Upon Application Upon Application Upon Application
  • Medical
  • Full Fit-Out
  • Now

White box space--plumbing fixtures in place.

  • 3rd Floor, Ste 312
  • 1,273 sq ft
  • Negotiable
  • Upon Application Upon Application Upon Application Upon Application
  • Medical
  • Full Fit-Out
  • Now
Space Size Term Rate Space Use Condition Available
1st Floor, Ste 102 4,254 sq ft Negotiable Upon Application Upon Application Upon Application Upon Application Medical - Now
1st Floor, Ste 103 2,191 sq ft Negotiable Upon Application Upon Application Upon Application Upon Application Medical Full Fit-Out Now
1st Floor, Ste 106 1,859 sq ft Negotiable Upon Application Upon Application Upon Application Upon Application Medical Full Fit-Out Now
2nd Floor, Ste 200 2,860 sq ft Negotiable Upon Application Upon Application Upon Application Upon Application Medical Full Fit-Out Now
2nd Floor, Ste 206 1,683 sq ft Negotiable Upon Application Upon Application Upon Application Upon Application Medical Full Fit-Out Now
3rd Floor, Ste 312 1,273 sq ft Negotiable Upon Application Upon Application Upon Application Upon Application Medical Full Fit-Out Now
Joseph Siewick Dr (Fair Oaks Medical Plaza)
3650 Joseph Siewick Dr - Fairfax Family Practice Walk-In Clinic
1,273 - 14,120 sq ft | Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application | View Building Details
Property Type/Class
Office/B
Year Built
1993
Property Size
82,032 sq ft
Number of Floors
4
Typical Floor Size
81,620 sq ft

3650 Joseph Siewick Dr - 1st Floor - Ste 102

Size
4,254 sq ft
Term
Negotiable
Rate
Upon Application Upon Application Upon Application Upon Application
Space Use
Medical
Condition
-
Available
Now

3650 Joseph Siewick Dr - 1st Floor - Ste 103

Size
2,191 sq ft
Term
Negotiable
Rate
Upon Application Upon Application Upon Application Upon Application
Space Use
Medical
Condition
Full Fit-Out
Available
Now

3650 Joseph Siewick Dr - 1st Floor - Ste 106

Size
1,859 sq ft
Term
Negotiable
Rate
Upon Application Upon Application Upon Application Upon Application
Space Use
Medical
Condition
Full Fit-Out
Available
Now

3650 Joseph Siewick Dr - 2nd Floor - Ste 200

Size
2,860 sq ft
Term
Negotiable
Rate
Upon Application Upon Application Upon Application Upon Application
Space Use
Medical
Condition
Full Fit-Out
Available
Now

3650 Joseph Siewick Dr - 2nd Floor - Ste 206

Size
1,683 sq ft
Term
Negotiable
Rate
Upon Application Upon Application Upon Application Upon Application
Space Use
Medical
Condition
Full Fit-Out
Available
Now

3650 Joseph Siewick Dr - 3rd Floor - Ste 312

Size
1,273 sq ft
Term
Negotiable
Rate
Upon Application Upon Application Upon Application Upon Application
Space Use
Medical
Condition
Full Fit-Out
Available
Now
Joseph Siewick Dr (Fair Oaks Medical Plaza)
3700 Joseph Siewick Dr - Fair Oaks Medical Plaza
1,584 - 10,576 sq ft | Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application | View Building Details
Property Type/Class
Office/B
Year Built
1993
Property Size
79,300 sq ft
Number of Floors
4
Typical Floor Size
19,825 sq ft
  • SPACE
  • SIZE
  • TERM
  • RATE
  • USE
  • CONDITION
  • AVAILABLE
  • 2nd Floor, Ste 201
  • 1,985 sq ft
  • Negotiable
  • Upon Application Upon Application Upon Application Upon Application
  • Medical
  • Full Fit-Out
  • Now

Move-in ready with light cosmetic work. 2nd gen medical. Previous OB/GYN space. 4 exam rooms with sinks, two bathrooms, Dr. Office, Lab, large staff area, and break room.

  • Fully Fit-Out as Standard Medical Space
  • 2nd Floor, Ste 203
  • 2,431 sq ft
  • Negotiable
  • Upon Application Upon Application Upon Application Upon Application
  • Medical
  • -
  • 01/04/2026

Fully built-out medical space. 7 treatment rooms/offices plus 2 restrooms, break room, lab, and waiting/reception. Dedicated staff entrance. Move-in ready

  • Space is in Excellent Condition
  • 2nd Floor, Ste 206
  • 1,584 sq ft
  • Negotiable
  • Upon Application Upon Application Upon Application Upon Application
  • Medical
  • Full Fit-Out
  • Now

Built out medical space / ready to occupy with 4 exam rooms and provider office, restroom, large reception and staff area with lab and break room. Virtual walk thru link: https://my.matterport.com/show/?m=7S82yJuUcdH

  • Fully Fit-Out as Standard Medical Space
  • Space is in Excellent Condition
  • 2nd Floor, Ste 209
  • 2,737 sq ft
  • Negotiable
  • Upon Application Upon Application Upon Application Upon Application
  • Medical
  • Full Fit-Out
  • Now

Fully built out medical space--move in ready! 9 offices/exam rooms, lab/break room, significant storage, interior bathroom, waiting/reception, and 3 entrances.

  • Fully Fit-Out as Standard Medical Space
  • Space is in Excellent Condition
  • 4th Floor, Ste 401
  • 1,839 sq ft
  • Negotiable
  • Upon Application Upon Application Upon Application Upon Application
  • Medical
  • Full Fit-Out
  • Now
  • Fully Fit-Out as Standard Medical Space
Space Size Term Rate Space Use Condition Available
2nd Floor, Ste 201 1,985 sq ft Negotiable Upon Application Upon Application Upon Application Upon Application Medical Full Fit-Out Now
2nd Floor, Ste 203 2,431 sq ft Negotiable Upon Application Upon Application Upon Application Upon Application Medical - 01/04/2026
2nd Floor, Ste 206 1,584 sq ft Negotiable Upon Application Upon Application Upon Application Upon Application Medical Full Fit-Out Now
2nd Floor, Ste 209 2,737 sq ft Negotiable Upon Application Upon Application Upon Application Upon Application Medical Full Fit-Out Now
4th Floor, Ste 401 1,839 sq ft Negotiable Upon Application Upon Application Upon Application Upon Application Medical Full Fit-Out Now
Joseph Siewick Dr (Fair Oaks Medical Plaza)
3700 Joseph Siewick Dr - Fair Oaks Medical Plaza
1,584 - 10,576 sq ft | Upon Application Upon Application Upon Application Upon Application Upon Application Upon Application | View Building Details
Property Type/Class
Office/B
Year Built
1993
Property Size
79,300 sq ft
Number of Floors
4
Typical Floor Size
19,825 sq ft

3700 Joseph Siewick Dr - 2nd Floor - Ste 201

Size
1,985 sq ft
Term
Negotiable
Rate
Upon Application Upon Application Upon Application Upon Application
Space Use
Medical
Condition
Full Fit-Out
Available
Now

3700 Joseph Siewick Dr - 2nd Floor - Ste 203

Size
2,431 sq ft
Term
Negotiable
Rate
Upon Application Upon Application Upon Application Upon Application
Space Use
Medical
Condition
-
Available
01/04/2026

3700 Joseph Siewick Dr - 2nd Floor - Ste 206

Size
1,584 sq ft
Term
Negotiable
Rate
Upon Application Upon Application Upon Application Upon Application
Space Use
Medical
Condition
Full Fit-Out
Available
Now

3700 Joseph Siewick Dr - 2nd Floor - Ste 209

Size
2,737 sq ft
Term
Negotiable
Rate
Upon Application Upon Application Upon Application Upon Application
Space Use
Medical
Condition
Full Fit-Out
Available
Now

3700 Joseph Siewick Dr - 4th Floor - Ste 401

Size
1,839 sq ft
Term
Negotiable
Rate
Upon Application Upon Application Upon Application Upon Application
Space Use
Medical
Condition
Full Fit-Out
Available
Now

3650 Joseph Siewick Dr - 1st Floor - Ste 102

Size 4,254 sq ft
Term Negotiable
Rate Upon Application
Space Use Medical
Condition -
Available Now

Whitebox space open to any and all specialties.

3650 Joseph Siewick Dr - 1st Floor - Ste 103

Size 2,191 sq ft
Term Negotiable
Rate Upon Application
Space Use Medical
Condition Full Fit-Out
Available Now

Brand New Built-out Medical Spec Suite. 6 exam rooms with sinks, restroom, 3 provider offices and break room. Virtual walk thru link: https://my.matterport.com/show/?m=XJz4gC4jZfA

  • Fully Fit-Out as Standard Medical Space
  • Prestigious Space

3650 Joseph Siewick Dr - 1st Floor - Ste 106

Size 1,859 sq ft
Term Negotiable
Rate Upon Application
Space Use Medical
Condition Full Fit-Out
Available Now

3650 Joseph Siewick Dr - 2nd Floor - Ste 200

Size 2,860 sq ft
Term Negotiable
Rate Upon Application
Space Use Medical
Condition Full Fit-Out
Available Now

Move-in ready Medical Space! Landlord will retrofit for any specialty/use if needed. 2nd floor is on ground level and the space has lobby exposure located at the entrance of the building. Landlord has updated paint/flooring/lighting. Space plan attached. Perfect for almost any specialty

  • Fully Fit-Out as Standard Medical Space
  • Space is in Excellent Condition

3650 Joseph Siewick Dr - 2nd Floor - Ste 206

Size 1,683 sq ft
Term Negotiable
Rate Upon Application
Space Use Medical
Condition Full Fit-Out
Available Now

White box space--plumbing fixtures in place.

3650 Joseph Siewick Dr - 3rd Floor - Ste 312

Size 1,273 sq ft
Term Negotiable
Rate Upon Application
Space Use Medical
Condition Full Fit-Out
Available Now

3700 Joseph Siewick Dr - 2nd Floor - Ste 201

Size 1,985 sq ft
Term Negotiable
Rate Upon Application
Space Use Medical
Condition Full Fit-Out
Available Now

Move-in ready with light cosmetic work. 2nd gen medical. Previous OB/GYN space. 4 exam rooms with sinks, two bathrooms, Dr. Office, Lab, large staff area, and break room.

  • Fully Fit-Out as Standard Medical Space

3700 Joseph Siewick Dr - 2nd Floor - Ste 203

Size 2,431 sq ft
Term Negotiable
Rate Upon Application
Space Use Medical
Condition -
Available 01/04/2026

Fully built-out medical space. 7 treatment rooms/offices plus 2 restrooms, break room, lab, and waiting/reception. Dedicated staff entrance. Move-in ready

  • Space is in Excellent Condition

3700 Joseph Siewick Dr - 2nd Floor - Ste 206

Size 1,584 sq ft
Term Negotiable
Rate Upon Application
Space Use Medical
Condition Full Fit-Out
Available Now

Built out medical space / ready to occupy with 4 exam rooms and provider office, restroom, large reception and staff area with lab and break room. Virtual walk thru link: https://my.matterport.com/show/?m=7S82yJuUcdH

  • Fully Fit-Out as Standard Medical Space
  • Space is in Excellent Condition

3700 Joseph Siewick Dr - 2nd Floor - Ste 209

Size 2,737 sq ft
Term Negotiable
Rate Upon Application
Space Use Medical
Condition Full Fit-Out
Available Now

Fully built out medical space--move in ready! 9 offices/exam rooms, lab/break room, significant storage, interior bathroom, waiting/reception, and 3 entrances.

  • Fully Fit-Out as Standard Medical Space
  • Space is in Excellent Condition

3700 Joseph Siewick Dr - 4th Floor - Ste 401

Size 1,839 sq ft
Term Negotiable
Rate Upon Application
Space Use Medical
Condition Full Fit-Out
Available Now

  • Fully Fit-Out as Standard Medical Space

PARK OVERVIEW

The Fair Oaks Medical Plaza consists of 3 Class A, Medical Office Buildings ideally situated on the Inova Fair Oaks Medical Campus. The campus includes the 3 MOBs (3620/3650/3700 Joseph Siewick Drive), Inova Fair Oaks Hospital, Inova's Cancer Institute, a Childcare Center, Sunrise Assisted Living facility, and free covered and surface-level parking options with dedicated physician spots. The Inova Fair Oaks Hospital is a top-ranked, 182-bed acute care community hospital serving the rapidly growing Northern Virginia suburbs. The hospital is complete with an emergency room and a renovated birthing center and generates over $672,995,830 in patient revenue per year. 3650 JS is attached to hospital by covered walk way, 3700 JS is attached to 3650 JS the same way, and 3620 JS is directly adjacent to the hospital. The covered parking garage is adjacent to all three buildings. Professionals in the buildings will have access to an affluent patient population as the campus is less than 20 miles west of Washington, D.C. on I-66. Plus, the Fairfax-area is a popular neighborhood for D.C.-area commuters. Dense residential neighborhoods border the medical campus as families are attracted to the quaint atmosphere and excellent public school system. The median household income within a five-mile radius is over $120,000, which far exceeds the national average. Fairfax also houses George Mason University, whose student body is actually larger than the entire population of Fairfax. The Metro’s Orange Line serves the community through the Vienna Station, and the Buildings are less than 10 miles from Dulles International Airport. The Fair Oaks Medical Plaza provides tenants an opportunity to join a synergistic mix of medical professionals on a renowned medical campus with move-in ready suites as well as the opportunity to customize your space based on practice and specialty needs.

  • Property Manager on Site
  • Listing ID: 29820511

  • Date on Market: 30/09/2025

  • Last Updated:

  • Address: 3620 Joseph Siewick Dr, Fairfax, VA 22033

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