Local development

What’s happening at King Street Common in Littleton?

Housing, retail and the latest review of plans for the former IBM campus.

By Mary McCauley, REALTOR® · Last reviewed October 9, 2026

If you have been wondering what is happening at King Street Common, the separate applications can make it difficult to follow. Housing, retail, existing buildings and public spaces do not all move through town review at the same time.

Start with the broader plan

Littleton describes the amended redevelopment plan for 550 and 584 King Street as including up to 804 multifamily homes, a 150-room hotel, existing office-building reuse and commercial, retail and light-industrial uses.

The town lists a March 20, 2026 final decision for Commercial/Mixed-Use Phase 1 and a May 5 decision for Building 200 improvements. Those records concern particular pieces of the project; they do not mean everything is built or open.

Source: Littleton: King Street Common project overview and decisions

Is a grocery store part of it?

The town labels Retail Phase 2 North as a specialty-grocer proposal. The page includes revised materials dated August 19, 2026 and draft decisions. Phase 2 South includes relocating the Tuttle House and a new retail building.

These reviewed records do not establish a grocery brand or opening date. A draft decision is not a signed final decision, and an omission on one project page does not prove no later decision exists elsewhere.

Source: Littleton: Retail Phase 2 North and South records

What happened at the September 24 meeting?

The Planning Board received an overview of the Retail Phase 3 site-plan submission for Buildings 900 and 1000 at 550 King Street. The draft minutes describe both as one-story retail and restaurant buildings with high ceilings, patios and outdoor seating facing the green, plus entrances along King Street. Potential tenants were described generally as restaurants, cafés and other food-and-beverage operators; the record does not name committed businesses or opening dates.

The presentation also discussed possible reuse of the Tuttle House as a coffee shop or café with outdoor seating and public restrooms serving visitors to the town common and retail area. The design team described varied rooflines, dormers, projecting storefronts, New England-style exterior materials, pedestrian connections and reuse of existing stone walls. Board comments focused in part on parking access and stronger tree and landscape screening along King Street.

Source: Littleton Planning Board draft minutes: September 24, 2026

What was—and was not—decided?

The September 24 meeting was a site-plan presentation and discussion, not a final approval of Retail Phase 3. The draft minutes record generally favorable comments about the layout, building design and proposed Tuttle House reuse, but no vote approving the phase.

Stormwater was left for further review. The Town Planner said the stormwater public hearing would be advertised to open on October 8, 2026, and the materials had been sent for a peer-review cost estimate. The September 24 record therefore does not establish final stormwater approval, construction timing, tenants or an opening date.

Source: Littleton Planning Board draft minutes: September 24, 2026

If you own a home or are considering buying nearby

My advice is to look at the details that affect your everyday life: access routes, proximity to proposed buildings, walking connections and construction sequence.

For buyers, a future amenity can be appealing, but your decision should work for the area as it exists today. For sellers, accurate information helps answer questions without promising a future value increase.

I would not put a dollar figure on the project’s effect on an individual home without supporting market evidence. The more useful conversation is about the property, its location and your priorities.

Sources and review notes

This is an educational guide, not a property-specific legal, financing, insurance or engineering opinion. Requirements and project status can change. Confirm the current records and applicable terms for your transaction.