Boston Waterfront Office Building Listed for Sale as Hotel Conversion Stalls

A Proposed Hotel Becomes a For-Sale Sign on Boston’s Waterfront

A vacant six-story office building on Boston’s waterfront that was earmarked for a 113-room boutique hotel just months ago is now on the market. Luxembourg-based JAJ Investment Group, which filed plans in January for the conversion of 400 Atlantic Ave., has now engaged CBRE to sell the property “free and clear of existing debt.” The about-face raises questions about the viability of turning aging downtown office stock into hospitality assets in today’s capital environment.

The earlier proposal called for a boutique hotel alongside roughly 7,000 square feet of restaurant and bar space, though no specific operator or brand was named. The building itself — completed in 1890 and last renovated in 1984 — has housed engravers, printers and the law firm Goulston & Storrs until it relocated. Its location within walking distance of South Station places it in one of Boston’s busiest commuter corridors, but the parcel also sits under Chapter 91 jurisdiction, which mandates public benefits and a 15-foot walkway along the waterfront side.

JAJ Investment Group is no stranger to adaptive reuse. The firm previously converted a historic building in Lisbon into the 61-room Palácio de Ludovice hotel and turned a Paris office property into a mixed-use apartment and hotel complex. Those European projects show the group’s appetite for complex hospitality conversions, making the decision to sell rather than execute in Boston a notable shift.

What the Listing Says About Boston’s Office Conversion Pipeline

Why JAJ May Be Walking Away From Boston

The listing suggests the developer hit a wall — likely a combination of financing challenges, the absence of a committed hotel operator, and rising construction costs that have made boutique conversions less attractive since the initial proposal. With interest rates still elevated from recent highs, the yield required on a singular luxury hotel might not clear the hurdles that the firm’s European projects cleared in a different cycle. The property’s small floor plates — just six stories — may also limit the scale that modern hotel brands demand for a viable return.

The Chapter 91 Factor

Waterfront development in Massachusetts comes with extra layers of review under Chapter 91, which can lengthen timelines and add costs. The 15-foot public walkway required along the harbour-facing side, while not new, can eat into usable ground-floor space and complicate design for a hotel entrance or restaurant patio. A buyer unfamiliar with Boston’s regulatory landscape may find those constraints a surprise, making an informed acquisition crucial.

What This Signals for Office Conversions

The sale suggests the pipeline of office-to-hotel conversions in Boston may be cooling. While demand for downtown hotels has recovered, new supply is being met with caution from lenders. Other proposed transformations have moved forward only with deep public incentives or pre-negotiated brand deals. The fact that JAJ’s plans never secured an operator makes the project riskier, and the swift pivot to sale indicates the math no longer works for the current owner.

What This Means for Developers and Investors

For developers and investors eyeing the asset:

• The property is offered debt-free, removing one layer of complexity. A buyer with cash or pre-arranged financing could move quickly.
• Any hotel plan still needs to satisfy Chapter 91 requirements, including the 15-foot public walkway. Negotiating alternative public-benefit arrangements may be possible but requires local expertise.
• The lack of a named operator in the earlier proposal is a red flag — a serious buyer should line up a brand or operator before closing, not after.
• Boston’s hotel RevPAR has rebounded, but a boutique project of only 113 rooms must command premium rates to justify conversion costs; a luxury flag like Soho House or Auberge could make the deal work, while a generic independent may not.
• Alternative uses such as life sciences or residential could be explored, but zoning at 400 Atlantic Ave. must be checked — the hotel plans had progressed far enough to suggest some level of entitlement, which may transfer to a new owner.