Walk down Bonifant Street in downtown Silver Spring this fall and you'll notice the parking has vanished from one side of the block. That's not temporary. Crews working on the Purple Line's Silver Spring Library station have permanently reduced Bonifant Street to one-way eastbound traffic, with no parking allowed on the south side between Fenton Street and Georgia Avenue. Any car left in the work zone gets towed at the owner's expense. A few blocks away, near the future Bethesda station, blasting has been part of construction for the complex mezzanine design that's driven that station's costs well over budget.
If you're comparing homes in Bethesda, Silver Spring, or Chevy Chase right now, this is the version of the Purple Line you're actually touring: fencing, detours, one-way streets, and a construction timeline that keeps sliding. The version most buyers have in their head, the one where home values spike once trains start running in late 2027, already happened. It happened a decade ago, and the data on it is more specific than most people realize.
Rents Moved Before a Single Shovel Hit the Ground
A study from the University of Maryland's National Center for Smart Growth looked at two-bedroom rental units within a half mile of the Purple Line's eleven future Montgomery County stations. Between 2015, when the project's funding was publicly confirmed, and 2017, when construction actually began, rents in that half-mile band rose by $480 a year. Rents in the rest of the county rose by $360 a year over the same stretch.
That gap opened before a single track was laid. The researchers who ran the study noted this was itself notable: the expectation was that rents would rise once the line was running, not while it was still an idea backed by funding commitments. The market didn't wait for proof. It priced the Purple Line in as soon as it believed the Purple Line was real.
That's the part worth sitting with if you're weighing a purchase near a future station today. The premium tied to future transit access isn't a future event anymore. It's already embedded in what these homes cost, and it has been for close to a decade. What you're evaluating in September 2026 isn't "will this appreciate when the line opens." It's "how much of today's price reflects a discount for the mess that's still going on outside, and how much of that discount will still be there in eighteen months."
What's Actually Under Construction This Fall
The Purple Line runs sixteen miles between Bethesda and New Carrollton with twenty-one stations, ten of them in Montgomery County. As of the project's own September 9, 2026 newsletter, live wire testing and light rail vehicle movements are active between the Lyttonsville Operations and Maintenance Facility and Bethesda Station, and crews are expanding that testing outward from there. That's a meaningful shift from where things stood even a few months earlier, when the priority was still finishing track rather than energizing it.
The Prince George's County portion of the line was reported finished back in September 2025. Montgomery County's track work was around 79 percent complete at that point and was expected to wrap by spring 2026. The final rail car, the twenty-eighth, was delivered in November 2025, and the last section of track was laid in May 2026 at a ceremony in Silver Spring where Governor Wes Moore helped drive the final spikes.
None of that means the disruption is over. It means it's shifted from track-laying to testing, and testing brings its own set of closures. The project has scheduled Community Advisory Team meetings across all eight corridor communities this fall, virtual sessions running from October 13 through October 28, covering Lyttonsville and Woodside, College Park, University Boulevard, Long Branch, Silver Spring, Riverdale Park, New Carrollton, Glenridge, and Bethesda and Chevy Chase. If you're seriously considering a home in one of those areas, those meeting dates are worth more than any listing description, because they're where residents hear directly about what's closing next and for how long.
The agency overseeing the project also changed leadership this month. MTA Administrator Holly Arnold, who stepped into the role in June 2021, left the agency on September 1, 2026, and Tony Bridges has since introduced himself to the corridor's communities in the project's newsletter. The late 2027 opening target has not changed.
Where the Line Stands, Segment by Segment
| Segment | Status as of fall 2026 |
|---|---|
| Prince George's County track | Reported complete, September 2025 |
| Montgomery County track | Final section laid May 2026 |
| Light rail vehicles | All 28 delivered by November 2025, in testing |
| Live wire and LRV testing | Active Lyttonsville to Bethesda, expanding, as of Sept. 9, 2026 |
| Bethesda station mezzanine | Under construction, cost overruns reported Dec. 2024 |
| Silver Spring Library station (Bonifant St.) | Active construction, street permanently reconfigured |
| Spring Street Bridge, Silver Spring | Nearing completion, not yet open |
| Capital Crescent Trail | Construction targeted for completion late spring to summer 2026 |
| Full revenue service | Targeted late 2027 |
The project is currently more than five years behind its original March 2022 target and has cost nearly $5 billion more than first budgeted. Neither of those numbers is new information to anyone who has followed this line for a while, but they matter here because they explain why "the line is basically done" and "the construction is basically over" are two different claims. The track is largely in. The testing, the station finishes, and the street-level disruption are not.
The Discount That's Still on the Table
This is where the two forces need to be separated. One is the transit-access premium, which the UMD research suggests was largely captured between 2015 and 2017, years before construction started. The other is a construction-disruption discount, which is happening right now and is tied to specific blocks, not the corridor as a whole.
The Capital Crescent Trail closure between Bethesda and Silver Spring is a useful marker for the second category. Earlier this year the project targeted construction completion for late spring to summer of 2026, with the trail reopening to the public once Montgomery County and the project agreed it was safe. That window has technically closed, and the project's own construction updates were still describing active work along the trail corridor near Talbot Avenue as recently as August 2026, which suggests the target has already slipped rather than landed. A home near the trail that feels cut off from a recreational amenity today is living through a delay, not a permanent condition, and it's worth asking directly where that reopening actually stands before assuming the closure is baked into the price for good.
The Spring Street Bridge in Silver Spring works the same way. It's the connector residents will use to reach the future Silver Spring Library and Dale Drive stations on foot or by bike, and it's described in the project's own September newsletter as close to finished. Once it opens, the corridor gets easier to move through, independent of whether trains are running yet.
Not every disruption is on that kind of clock. Bonifant Street's new one-way configuration isn't a construction inconvenience that lifts when testing wraps up. It's a permanent change to how that block functions, made to accommodate the Silver Spring Library station for good. A buyer weighing a condo on that block should treat the traffic pattern as the new normal, not as something to wait out.
What This Means If You're Comparing These Neighborhoods Right Now
The instinct to buy near a future Purple Line station because the value will jump when it opens is, at this point, a decade late. The jump that instinct is describing mostly already happened, priced into rents and sale comparables between 2015 and 2017. What's left to evaluate is narrower and more specific: is the disruption on this particular block tied to a dated construction milestone that's closing out, like the Capital Crescent Trail or the Spring Street Bridge, or is it a permanent feature of how the finished project will operate, like Bonifant Street's new traffic pattern.
That's a block-by-block question, not a corridor-wide one. Two homes half a mile apart in Silver Spring can be living through completely different versions of this project depending on which station segment they sit near and which Community Advisory Team meeting covers their block. Before writing an offer near any of these stations, it's worth checking the project's own construction updates page for the specific segment in question, because the disruption picture changes month to month in ways a listing photo won't show.
If you're weighing a home in Bethesda, Silver Spring, or Chevy Chase and want a read on what the current construction status actually means for a specific address, Teresa Burton can walk through it with you, station segment by station segment, before you make an offer.
