Sully Square, VA Real Estate: The Definitive Guide to Route 28 Tech Corridor Living, Executive Townhomes, Udvar-Hazy Center & Chantilly/Westfield Pyramids

Architectural and commercial panorama of Sully Square in western Fairfax County, Virginia, illustrating the modern executive townhome enclaves, vibrant retail and dining corridors along Route 28 and Route 50, and proximity to the Dulles Technology Corridor.

1. Spatial Morphology, Geographic Coordinates & Territorial Extents

Sully Square, Virginia, represents a technologically vibrant and geographically vital community situated in the western corporate sector of Fairfax County. Cataloged by the United States Census Bureau as an independent Census-Designated Place (CDP) under Federal Information Processing Standard (FIPS) code 51-76472, Sully Square encompasses approximately 1.8 square miles of land. Positioned at geographic coordinates 38°53′30″ N latitude and 77°26′45″ W longitude, the community sits at an elevation of 330 to 390 feet above sea level upon the flat to gently undulating Piedmont floor.

The spatial perimeters of Sully Square are defined by major arterial transport corridors and surrounding commercial enclaves. To the south, the community is framed by Route 50 (Lee Jackson Memorial Highway), which delivers high-speed east-west connectivity connecting east to Fair Oaks, Fairfax City, and the Capital Beltway, and west into South Riding and Loudoun County. To the west, the boundary is formed by Route 28 (Sully Road), a multi-lane grade-separated freeway providing rapid north-south travel between Sterling and Interstate 66. To the east, the boundary connects along Centreville Road (Route 657) with Franklin Farm and Greenbriar. To the north, Sully Square transitions toward Floris and the southern flight paths of Washington Dulles International Airport.

Administratively, Sully Square resides entirely within the Sully Magisterial District of Fairfax County, from which it derives its namesake governance. Residential mailing addresses within the community bear Chantilly delivery designations under postal ZIP code 20151. The spatial design of Sully Square presents a functional urban-suburban balance: commercial centers, retail plazas, and corporate office parks line its primary highway perimeters, while quiet, landscaped townhome avenues and single-family cul-de-sacs provide peaceful residential sanctuaries in its interior.

2. Historical Genesis: The 1794 Sully Plantation & Commercial Transformation

The historic namesake of Sully Square is inextricably linked to the nearby Sully Historic Site, completed in 1794 by Richard Bland Lee, a member of the prominent Lee family of Virginia and Northern Virginia's first representative to the United States Congress. Lee constructed a handsome Federal-style plantation home, stone dairy, smokehouse, and gardens on the expansive property, naming it "Sully" after the estate of the Duke of Sully in France.

Throughout the 19th and early 20th centuries, the surrounding landscape remained primarily agricultural, producing dairy products, grains, and timber. During the American Civil War, the crossroads around Chantilly and Sully witnessed significant military maneuvering, culminating in the nearby Battle of Ox Hill (Chantilly) in September 1862.

The modern transformation of Sully Square commenced in the early 1960s with the construction of Washington Dulles International Airport and the designation of Route 28 as a primary regional connector. Over the subsequent four decades, progressive land-use planning converted former farmland into a premier mixed-use hub, integrating corporate aerospace campuses, retail plazas, and master-planned residential communities engineered to accommodate the expanding workforce of the Dulles Technology Corridor.

3. Strategic Location: The Route 28 (Sully Road) & Route 50 Convergence Corridor

Sully Square occupies one of the most critical transportation crossroads in Northern Virginia. The intersection of Route 28 and Route 50 forms a massive grade-separated cloverleaf interchange that facilitates the transit of tens of thousands of vehicles daily:

• Route 28 Expressway Corridor: Featuring six to eight continuous lanes with grade-separated overpasses, Route 28 provides an uninterrupted expressway link connecting north directly to Dulles Airport, the Dulles Toll Road (Route 267), and Loudoun County, and south to Interstate 66, Centreville, and Prince William County.
• Route 50 Commercial Arterial: Delivers multi-lane highway mobility eastward through Fair Oaks and Tysons, and westward into eastern Loudoun County's expanding data center corridor.
• Interstate 66 Interchange: Located just three miles south along Route 28, providing rapid access to the Capital Beltway (I-495) and downtown Washington, D.C., complete with dedicated I-66 Express Lanes.

4. Architectural Typologies: Modern Garage Townhomes, Condos & Executive Colonials

The residential housing stock across Sully Square represents practical, contemporary suburban design crafted to meet the needs of modern working professionals and growing families:

• Executive Multi-Level Brick Townhomes: The predominant and highly sought-after housing style across the community. Built primarily from the 1990s through the 2010s, these three-level residences provide 1,800 to 2,800 square feet of finished living space. Features include brick front facades, attached one- or two-car garages, nine-foot main ceilings, open center-island gourmet kitchens, gas fireplaces, hardwood flooring, and elevated rear dining decks.
• Detached Center-Hall Colonials: Located within established residential cul-de-sacs, these four- to five-bedroom single-family homes feature classic brick and siding elevations, two-story central entry foyers, formal living and dining rooms, attached two-car garages, finished lower-level recreation suites, and private fenced backyards.
• Low-Maintenance Condominiums & Carriage Homes: Offering convenient single-level or two-story living, these properties feature open floor plans, primary bedroom suites with walk-in closets, assigned or garage parking, and comprehensive association-maintained exteriors.

5. Smithsonian Cultural Anchor: Steven F. Udvar-Hazy Center & Aerospace Heritage

One of the world's greatest cultural and educational treasures is situated just two minutes west of Sully Square: the Steven F. Udvar-Hazy Center, the companion facility to the Smithsonian National Air and Space Museum:

• Historic Aviation Icons: Houses hundreds of legendary aircraft and spacecraft in colossal hangar display halls, including the Space Shuttle Discovery, the Lockheed SR-71 Blackbird, the Boeing B-29 Enola Gay, and an Air France Concorde supersonic airliner.
• Donald D. Engen Observation Tower: Offers 360-degree panoramic views of air traffic taking off and landing at neighboring Washington Dulles International Airport, complete with live air traffic control audio broadcasts.
• Airbus IMAX Theater & Restoration Hangar: Features a towering six-story IMAX screen showing educational documentaries and feature films, alongside an elevated glass viewing deck overlooking the Mary Baker Engen Restoration Hangar where technicians restore historic flight artifacts.

6. Retail & Commercial Infrastructure: Sully Square, Chantilly Crossing & Plazas

Residents of Sully Square benefit from an exceptional concentration of everyday retail, dining, and commercial services directly at their doorstep:

• Sully Square Shopping Center: Anchored by regional retail, fast-casual dining, automotive services, banks, and neighborhood specialty services.
• Chantilly Crossing: Located at Route 50 and Lee Road, featuring wholesale shopping powerhouse Costco Wholesale, Target, specialty pet supply retailers, and national dining destinations.
• Sully Plaza & Dulles Expo Center: Home to additional grocery anchors, international supermarkets, specialty hardware retailers, and the Dulles Expo Center, which hosts regional home shows, antique expos, and cultural conventions throughout the year.

7. Feeder School Pyramids: Premier Feeder Institutions in Fairfax County

Educational excellence is a central attraction for families in Sully Square, falling within premier feeder pyramids of the Fairfax County Public Schools (FCPS) system:

• Lees Corner Elementary School: Recognized for its nurturing educational environment, dedicated faculty, advanced literacy initiatives, and vibrant STEM enrichment programs.
• Brookfield Elementary School: Celebrated for diverse language immersion, supportive community partnerships, and innovative technology integration.
• Franklin Middle School & Rocky Run Middle School: Intermediate students benefit from rigorous honors and Advanced Academic Programs (AAP), award-winning science and robotics clubs, and exemplary instrumental music ensembles.
• Chantilly High School: Flagship secondary institution celebrated for its prestigious Governor's STEM Academy, comprehensive AP Capstone diploma curriculum, championship athletic programs, and nationally recognized performing arts departments.
• Westfield High School: Premier secondary academy renowned for its Governor's STEM Academy, advanced computer science pathways, powerhouse athletic teams, and robust college preparatory counseling.

8. Commuter Mobility: Route 28 Freeway, Dulles Airport & Silver Line Metrorail

Transportation mobility from Sully Square is among the most versatile in Fairfax County:

• Washington Dulles International Airport (IAD): Located less than five miles north along Route 28, reachable in under seven minutes by car, providing effortless global business and domestic flight access.
• Silver Line Metrorail Stations: Positioned within seven to eight minutes of both the Innovation Center Station and Herndon Station, providing one-seat rapid rail transit into Tysons, Arlington, and downtown Washington, D.C.
• Express Commuter Bus Networks: Fairfax Connector express buses operate along Route 50 and Centreville Road, providing direct connectivity to Metrorail stations and regional park-and-ride commuter lots.

9. Parks & Natural Reserves: Ellanor C. Lawrence Park & Flatlick Branch

Despite its dynamic commercial surroundings, Sully Square is buffered by extensive protected parklands and natural greenways:

• Ellanor C. Lawrence Park: Located just two miles south along Route 28, this magnificent 650-acre county park features the historic Walney Visitor Center, miles of wooded hiking trails along Big Rocky Run, athletic fields, historic 18th-century farm buildings, and fishing ponds.
• Flatlick Branch Stream Valley Park: A protected forested stream greenway providing pedestrian walking trails, birdwatching, and natural drainage protection running through western Fairfax.

10. Corporate & Tech Hub: The Dulles Defense, Aerospace & Cloud Corridor

Sully Square is situated squarely within Northern Virginia's thriving aerospace, defense, and high-tech corporate corridor:

• Aerospace & Defense Anchors: Immediate highway access to corporate campuses for Boeing, Northrop Grumman, General Dynamics, Leidos, CACI, and Raytheon.
• Cloud & Data Center Infrastructure: Minutes from Northern Virginia's world-leading cloud computing and data center clusters processing major global internet traffic.
• Federal Government & Intelligence Facilities: Close proximity to major federal agency campuses in Chantilly and Dulles.

11. Community Governance & Neighborhood Associations

Residential subdivisions and townhome clusters within Sully Square are managed by individual neighborhood homeowners associations (HOAs) and condominium trusts. These associations oversee common-area landscaping, private street maintenance, exterior building preservation, and localized recreational amenities, including neighborhood swimming pools, tennis courts, and tot-lot playgrounds.

12. Virginia Statutory Assessment Framework Under Code § 58.1-3201 & Fairfax County Mass Appraisal Equalization

Real property taxation across Sully Square is governed strictly by the statutory mandates of the Code of Virginia § 58.1-3201, which requires that all real estate subject to taxation must be assessed at one hundred percent (100%) of its true fair market value. The Commonwealth of Virginia enforces this uniform standard across all jurisdictions, ensuring equitable tax distribution without arbitrary fractional adjustments or speculative assessments.

To establish fair market value, the Fairfax County Department of Tax Administration (DTA) conducts an annual computerized mass appraisal equalization. Certified appraisal specialists evaluate closed arm's-length sales of comparable townhomes, condominiums, and single-family properties within Sully Square over the prior calendar year, adjusting for specific physical and location variables:

• Gross Above-Grade Living Square Footage: Precise measurement of finished above-grade living area, accounting for multi-level townhome layouts and expanded family room additions.
• Garage & Parking Configurations: Valuation differentiation between attached one-car and two-car garage townhomes versus surface assigned parking spaces.
• Basement Finish & Walkout Attributes: Accurate accounting of fully finished walkout lower levels, recreation suites, and full bathrooms.
• Documented Capital Improvements: Verified property enhancements recorded through Fairfax County building permits, including modern chef's kitchen renovations, upgraded primary baths, architectural shingle roofs, and composite rear decks.

Fairfax County mails annual assessment notices to property owners in late February. Homeowners retain the statutory right to request an administrative review with the Department of Tax Administration, with subsequent appeal avenues available through the independent Fairfax County Board of Equalization (BOE) and the Circuit Court.

13. Comparative Analysis Matrix: Sully Square vs. Surrounding Communities

Prospective homebuyers exploring western Fairfax County frequently compare Sully Square with neighboring residential enclaves. The comparative matrix below outlines key structural, architectural, and governance distinctions:

14. Frequently Asked Questions Regarding Sully Square, VA Real Estate