McLean and Tysons Development Tracker
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Proposed, Approved, Under Construction and Complete: Downtown McLean, Tysons, the GW Parkway, Route 123 and the Backyard Cottage Rules
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Quick Answer: What Is Being Built in and Around McLean?
Status as of October 15, 2026.
Quick answer: downtown McLean has an approved office-to-apartment project (56 homes at 1368 Beverly Road, approved March 17, 2026) and a 115-home proposal on Elm Street, while Mars is finishing its Elm Street headquarters renovation. Most new housing is in Tysons, where Indigo at McLean Station, the Exchange at Spring Hill Station and the Flats at Tysons are under construction. The GW Parkway rebuild is complete, the Dulles Toll Road bridge over Route 123 is under construction until early 2028, and a countywide backyard-cottage (ALU) amendment goes to hearings Oct. 29 and Nov. 17, 2026.
“Approved” means a decision is on record; it does not mean construction has started. Back to the Living in McLean, VA guide.
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McLean and Tysons Projects at a Glance
Status labels: Proposed (application filed or study underway), Approved (a county or agency decision is on record; construction may not have started), Under construction and Complete.
| Project | Status | Key dates and details |
|---|---|---|
| 1368 Beverly Road (McLean Office Center), downtown McLean | Approved | Board of Supervisors rezoning March 17, 2026 (unanimous); seven-story, 56-unit apartment building with at least seven workforce units, about 2,120 sq. ft. of retail and a public plaza |
| 6816 and 6824 Elm Street, downtown McLean | Proposed | Highcrest application under county review (statement dated June 30, 2026); seven-story building with up to 115 homes, about 4,520 sq. ft. of retail, about 16,371 sq. ft. of office and a 223-space underground garage |
| Mars Inc. headquarters, 6885 Elm Street | Under construction | Began August 2024; on track to finish by the end of 2026, with employees returning in early 2027; adds a shared-use path, street trees and a bus shelter on Old Dominion Drive |
| Spring Hill Reserve, 1336 to 1348 Spring Hill Road | Approved | Board of Supervisors approval March 17, 2026; 14 single-family houses on nearly 5 acres |
| GW Parkway north section rehabilitation | Complete | Ribbon cutting June 8, 2026; $167 million project (Interior Department) covering pavement, stone walls, overlooks and the Route 123 interchange |
| 495 Express Lanes northern extension | Complete (lanes open) | Lanes opened November 2025 from the Dulles corridor to the GW Parkway near the American Legion Bridge; VDOT anticipated full project completion in mid-2026 |
| Dulles Toll Road eastbound bridge over Route 123 | Under construction | Eastbound lane split in place until early 2028; nighttime closures scheduled Oct. 9 to 16, 2026 (VDOT) |
| Accessory living unit (ALU) zoning amendment, countywide | Proposed | Staff report Sept. 29, 2026; Planning Commission hearing Oct. 29, 2026; Board of Supervisors hearing Nov. 17, 2026 |
| Indigo at McLean Station, 1750 Old Meadow Road, Tysons | Under construction (phase 1 complete) | 456 income-restricted apartments in two phases; phase 1 (231 units) certified for occupancy in May 2026; phase 2 (225 units) expected to be ready in October 2026 |
| The Exchange at Spring Hill Station, Tysons | Under construction | 516 affordable apartments; expected to open in 2027, per the Tysons Community Alliance |
| The Flats at Tysons, 1953 Gallows Road | Under construction | 86-unit condominium building; expected to open in 2027, per the Tysons Community Alliance |
| 1950 Old Gallows Road, Tysons | Approved | Board of Supervisors rezoning May 19, 2026 (unanimous); up to 304 apartments including 51 workforce units, a park at Gallows and Gallows Branch roads, 95-foot height cap |
| Piazza at Tysons, near the Spring Hill station | Approved (conceptual plan) | Board of Supervisors approved the conceptual development plan Nov. 18, 2025 for housing, office, hotel and retail with about 2 acres of parkland; final development plans are still required for each building |
| Tysons Central buildings B and C, near the Greensboro station | Proposed | Lincoln Avenue Communities filed a rezoning application Oct. 7, 2026 for two high-rises (about 29 and 38 stories) with up to 525 affordable homes |
| Tysons office-to-residential planning study | Proposed | County study launched in May 2026 to consider whether office-designated parcels in the Tysons plan could support residential or mixed use |
Downtown McLean
Downtown is the roughly 230-acre McLean Community Business Center. The Board of Supervisors adopted an updated plan for it on June 22, 2021, aimed at a more walkable, mixed-use center. At 1368 Beverly Road, on March 17, 2026, the Board rezoned the McLean Office Center for a seven-story building with 56 apartments, ground-floor retail and a corner plaza. A larger proposal followed in July 2026, when Highcrest filed plans to replace offices at 6816 and 6824 Elm Street with up to 115 homes over underground parking.
Mars Inc. is also finishing a major renovation of its longtime headquarters at 6885 Elm Street, which roughly doubles the building to about 127,000 square feet, replaces a surface lot with green space and adds a shared-use path on Old Dominion Drive.
Tysons
Fairfax County’s Tysons Comprehensive Plan, built around the four Silver Line stations that opened in July 2014, envisions up to 100,000 residents and 200,000 jobs by 2050. The Tysons Community Alliance reported in September 2026 that Tysons has grown from about 17,000 residents in 2010 to about 32,000, with more than 7,000 homes delivered since 2010. Near the McLean station, Indigo at McLean Station is opening its second building this fall; near Spring Hill, the Exchange and the approved Piazza at Tysons are next; and near Greensboro, a new rezoning application would add two affordable high-rises to Tysons Central.
Roads and Bridges
The National Park Service finished the GW Parkway north section rehabilitation, the first major rebuild of the 1962 parkway, with a ribbon cutting on June 8, 2026. VDOT’s 495 Express Lanes extension opened in November 2025 between the Dulles corridor and the GW Parkway, ending just short of the American Legion Bridge. On Route 123, VDOT is rebuilding the eastbound Dulles Toll Road bridge, with a lane split in place until early 2028.
Backyard Cottages: The ALU Amendment
Fairfax County’s proposed accessory living unit amendment matters for McLean’s larger lots. Today a detached ALU requires a lot of at least two acres. The September 2026 staff report proposes allowing a detached ALU by right on lots of 36,000 square feet or more, keeping a 1,200-square-foot size cap, removing the owner-occupancy requirement and dropping the administrative permit for by-right units. Hearings are Oct. 29, 2026 (Planning Commission) and Nov. 17, 2026 (Board of Supervisors), and the text can change before adoption. More in buying or building in McLean.
How to Check a Project Near a Home
- Search the address or nearby parcels in Fairfax County’s PLUS portal for rezoning and site plan applications.
- Read the McLean CBC plan for homes near downtown, and the Tysons Comprehensive Plan for homes near the Silver Line.
- Check the Dranesville District pages for meetings; Tysons projects can also fall in the Providence or Hunter Mill districts.
- For road work, check VDOT’s Northern Virginia project pages and the NPS GW Parkway alerts.
Nikki can pull these records for any home you are considering. Contact Nikki or text Nikki.
More McLean Guides
- Living in McLean, VA: the full McLean guide
- McLean neighborhoods explained: downtown McLean vs. Langley vs. Chesterbrook vs. West McLean vs. Tysons
- McLean events calendar
- Buying or building in McLean: teardowns, large lots, trees and backyard cottages
- Great Falls Park, Scott’s Run and the Potomac Heritage Trail
Nearby area pages: Vienna, Falls Church, Arlington, Reston and Oakton, or see all areas served. Nikki’s results are on the Rankings & Data page. Questions? Contact Nikki, call 703-596-5065 or text Nikki.
McLean Development FAQ
What is being built in downtown McLean?
In March 2026 the Board of Supervisors approved a seven-story, 56-unit apartment building to replace the McLean Office Center at 1368 Beverly Road. A separate proposal for up to 115 homes at 6816 and 6824 Elm Street was under county review as of July 2026.
Is the GW Parkway construction finished?
Yes. The National Park Service and Interior Department marked completion of the north section rehabilitation with a ribbon cutting on June 8, 2026.
When will the Dulles Toll Road work at Route 123 end?
VDOT says the eastbound bridge rehabilitation over Route 123 is scheduled for completion in early 2028, and the eastbound lane split stays in place until then.
Can I build a backyard cottage on a McLean lot?
Under current rules a detached accessory living unit needs a lot of at least two acres. A proposed amendment would allow one by right on lots of 36,000 square feet or more; hearings are scheduled for Oct. 29 and Nov. 17, 2026.
How many people live in Tysons now?
The Tysons Community Alliance reported about 32,000 residents in 2026, up from about 17,000 in 2010. The county plan envisions up to 100,000 residents by 2050.
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Sources
Sources checked October 15, 2026.
- Fairfax County: McLean CBC Study; Tysons Comprehensive Plan; Silver Line Phase 1; Accessory Living Units proposed amendment and staff report (Sept. 29, 2026)
- National Park Service / Interior: Interior Completes $167 Million George Washington Memorial Parkway Rehabilitation (June 8, 2026)
- VDOT: 495 Express Lanes Northern Extension; Dulles Toll Road eastbound over Route 123 bridge rehabilitation; nighttime closures Oct. 9 to 16
- FFXnow: More housing approved for McLean (March 25, 2026); Proposed mixed-use development in McLean (July 15, 2026); Renovation of Mars HQ (Sept. 18, 2026); Tysons nearly doubles population since 2010 (Sept. 23, 2026); 1950 Old Gallows Road approved (May 20, 2026); Piazza at Tysons conceptual plan approved (Nov. 20, 2025); Tysons Central high-rises proposed (Oct. 12, 2026); Community input wanted on future of office in Tysons (May 19, 2026)
- Hero photo: Tysons skyline, by Dclemens1971, CC BY 4.0 via Wikimedia Commons.
