Key Takeaways
•The short answer: According to the Weston Observer, as of November 2026 the Weston MA Planning Board is reviewing an early filing for BXP's quarry project at 133 Boston Post Road. The filing covers 280 multifamily units, and the site plan hearing is November 4. The project is not approved.
•The timing: BXP told the Weston Observer that construction could start in summer 2027 and finish by January 2030 if permitting "goes smoothly." Either way, the Quarry adds no homes in the next 12–24 months.
•The bottom line: If you want a single-family house, don't wait for the Quarry. Track it for its long-term effects on the neighborhood.
Why Are Buyers Hearing Both 480 Homes and 280 Units?
Here's the simple explanation: 480 is the zoning cap, and 280 is what BXP has actually filed. These numbers aren't in conflict — one is the ceiling, the other is the real proposal on the table right now. So 280 is the figure worth watching.
The town's 3A capacity table, which sets zoning under the state's MBTA Communities law, caps A - BXP - 133 Boston Post Road at 480 units total. Within that, A - Phase 2 - Existing Parking tops out at 280 units, while Phase 1 and Phase 3 are capped at 100 units each.
Weston MBTA 3A District Capacity by Zone
Detailed table of Weston’s proposed MBTA 3A multifamily zoning districts, including acreage, density, and maximum-unit figures where listed.
| Category | MBTA 3A Zone |
|---|---|
| A - BPX -133 Boston Post Road | Property Acres: 73.79; Zone Acreage: 75.90; Density: 6; Maximum Units: 480 |
| A - Phase 1 - Northern End | Property Acres: 22.10; Zone Acreage: 22.11; Density: 5; Maximum Units: 100 |
| A - Phase 2 - Existing Parking | Property Acres: 25.90; Zone Acreage: 25.92; Density: 11; Maximum Units: 280 |
| A - Phase 3 - Existing Building | Property Acres: 26.90; Zone Acreage: 27.87; Density: 4; Maximum Units: 100 |
| B - Merriam Village | Property Acres: 15.56; Zone Acreage: 13.27; Density: 8; Maximum Units: 100 |
| C - 751 Boston Post Road | Property Acres: 61.82; Zone Acreage: 6.22; Density: 17; Maximum Units: 100 |
| D - Maplewood - 99 Norumbega | Property Acres: 3.14; Zone Acreage: 3.14; Density: 20; Maximum Units: 70 |
| Charles River Recover - 75 Norumbega | Property Acres: 4.95; Zone Acreage: 4.95; Density: 2 |
The full three-phase concept, per the Weston Observer, breaks down like this:
•100 townhomes
•280 multifamily units near the parking structure
•100 age-restricted units (typically 55+) where the office building currently stands
That last phase isn't happening anytime soon. BXP told the Weston Observer it expects the office building to remain through at least 2040 — and Panera Bread is actually moving its headquarters in. The zoning table determines how many homes could go up here. It says nothing about whether those buildings get approved.
Where Does the 133 Boston Post Road Filing Stand Now?
Here's the timeline so far, according to the Weston Observer:
•September: BXP filed with MEPA, the state's environmental review office.
•October 23: The comment period closed, and the Planning Board walked the site.
•October 30: MEPA's decision was due. If MEPA required more review, the 2027 start could slip — check the MEPA site for updates.
Next up: the Planning Board's site plan hearing on November 4, a public meeting covering building layout, design, and traffic.
BXP still needs sign-off from three more agencies: MassDEP (state environmental review), MassDOT (state transportation), and the MBTA.
The development agreement — a contract between the town and BXP — caps the project at 375 new parking spaces, bringing the total to 1,140. Height limits are spelled out in that same agreement on the town website.
Traffic looks like the real pressure point. VHB, the project's engineering firm, expects "minor traffic impacts" but admits "there are no feasible measures that would avoid these impacts." Keep an eye on Route 20 access and commute times.
Should You Wait for the Quarry Before Buying in Weston?
For most single-family buyers, no. There's nothing to buy yet, and townhomes or apartments won't replace a house with a yard and privacy. Nobody even knows yet whether the new units will be sold or rented — and no pricing exists.
Meanwhile, the Massachusetts Association of Realtors' September 2026 local market update for Weston shows:
•41 single-family homes for sale, down from 53 a year earlier
•Sellers received 93.1% of original asking price, down from 95.8%
•Homes took 79 days to sell
•Median price: $2,570,000
Inventory is tighter, but sellers are pocketing a smaller share of their asking price than last year — which gives buyers some real room to negotiate. Waiting on a possible 2030 option could cost you time without saving you a dime.
School enrollment shouldn't dictate your timing, but if schools are part of your decision: Weston Public Schools projects enrollment could jump 30% by 2034 if pipeline projects move forward. That would affect class sizes down the road.
Potential School Impact of Weston Development Pipeline
High-level snapshot of the cited school-enrollment projection tied to completion of certain developments.
Weston Public Schools projection
Projected enrollment increase by 2034 (if pipeline developments completed)30%
Projection target year2034
The one real exception is downsizers. The Weston Observer counted just eight condo sales in the first half of 2026. If the townhomes end up for sale rather than rent, this might be worth watching closely.
What Could Slow This Project Down?
Fair pushback: multifamily projects in wealthy suburbs often stall, shrink, or die entirely. If that happens here, these Planning Board meetings tell us little about actual supply over the next 12–24 months.
That's a valid point. Even in BXP's best-case scenario, zero homes arrive before construction starts in summer 2027 — and Planning Board review, state permits, and a building permit all still lie ahead. There's no move-in date, no pricing, no financing details yet.
The Planning Board also may not hold the real power here. Under 3A zoning, the Board typically reviews site plans — design, height, parking, traffic — rather than deciding whether housing gets built at all. Confirm with Town Hall exactly how much authority the Board has. The real timing controls sit with the state and MBTA. Think of November 4 as a chance to learn design and traffic details, not a yes-or-no vote on the project itself.
How Can You Track the Quarry Project Yourself?
•Click Notify Me® on Weston's Planning Board calendar for the "Weston Quarry - BXP" event, and double-check hearing details on the Planning Board page.
•On November 4, listen for answers to three questions: Will the townhomes be sold or rented? How will Route 20 traffic be handled? When will BXP secure its state permits?
Bottom line: Tracking the Quarry won't tell you when to buy, but it'll show you how traffic, schools, and downsizer options might shift over time. Buy when the right home shows up. If you want help weighing today's Weston listings against these coming changes, ask for a neighborhood-by-neighborhood buyer strategy.
