
These are the highest-priced home sales reported in the Boston metro area for the week ending October 18, 2026, and together they came to a combined $40.814 million.
Four of the five were condominiums in Boston, in South Boston and on Beacon Hill, and the fifth was a single-family home on the coast in Cohasset, the one sale in Norfolk County. The group spans more than a century of building, from a converted carriage house to homes finished this year.
No. 1 — $13,575,000 · 1 Harbor Shore Dr #Penthouse 2a, Boston, Massachusetts

The week’s top sale was a penthouse at 1 Harbor Shore Drive in South Boston, which sold for $13,575,000. The condominium was built in 2026 and has three bedrooms and five bathrooms, four full and one half, in 2,965 square feet.
Much of its appeal is outdoors and in the light. The penthouse has its own roof deck and a terrace, and residents also share a common roof deck. Inside are a study, sunny rooms with views, central air conditioning and an in-unit washer and dryer.
The penthouse went under contract 14 days after it was listed and sold for $75,000 above its $13.5 million asking price. Michael T Moynihan of The Collaborative Companies was the listing agent and also listed the No. 2 sale of the week, another residence at the same address, giving the brokerage the top two sales in this Top 5.
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No. 2 — $9,189,000 · 1 Harbor Shore Dr #12B, Boston, Massachusetts

The No. 2 sale was also at 1 Harbor Shore Drive in South Boston, where Unit 12B sold for $9,189,000. Like the penthouse in the same building, the condominium was built in 2026. It has three bedrooms and four bathrooms, three full and one half, in 2,576 square feet. The home has a study and sunny rooms with views, along with a terrace and access to the building’s common roof deck. Michael T Moynihan of The Collaborative Companies was the listing agent, the second of the two top sales listed for the brokerage this week.
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No. 3 — $6,200,000 · 25 Beaver Pl #25, Boston, Massachusetts

The oldest home in the group dates to 1917. It is a converted carriage house on Beaver Place, on the Flat of Beacon Hill between Newbury Street and Charles Street, and it sold for $6,200,000. The building is 60 feet wide, with two private entrances and offers the privacy and scale of a single-family home. At 4,442 square feet, it has the most living space of the five sales.
The entertaining rooms share the upper level, and all of them face the front. Bay windows look out over Beaver Place and the Boston Public Garden from the living room. A formal dining room sits at the center, and the kitchen opens into a family room with French doors. The home has four fireplaces, with marble and hardwood floors throughout.
The three bedrooms are all suites, and they are on the entry level with an office off the foyer and a mudroom entrance. There are four bathrooms, three full and one half. Outside are a private garden terrace with a pergola and a composite deck. The home also has a two-car garage and the Charles River and the Esplanade are steps away. The property last sold for $4.7 million in 2007.
Beth Dickerson of Gibson Sotheby’s International Realty was the listing agent, and the Steph Crawford Group of Real Broker MA, LLC represented the buyer. Gibson Sotheby’s International Realty also listed the No. 5 sale this week.
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No. 4 — $6,150,000 · 486 Jerusalem Rd, Cohasset, Massachusetts

The only sale outside Boston was on Jerusalem Road in the Coastline neighborhood of Cohasset, where a Shingle-style home sits high above the Atlantic on a level lot of 0.89 acres. From the property, the views run from Black Rock Beach to the Boston skyline, and a public beach is within a tenth of a mile.
Built in 2006, the home has 4,335 square feet and five bedrooms, the most of any home in this Top 5. The bedrooms are upstairs, and every one of them has an ocean view. There are five bathrooms, four full and one half. A kitchen with premium appliances opens to a sunny dining area and a family room with a fireplace, and there are also a sun room, a wet bar and a mudroom. The home also has several decks.
The grounds were laid out for entertaining. There is a heated in-ground pool and a spa, a broad lawn, and a pool pavilion with its own fireplace and an outdoor TV. An outdoor shower, a fenced yard and a stone wall complete the setting, and the home has a three-car garage. The property last sold for $5.645 million in 2024.
The home sold for $6,150,000, its full asking price. Tara Coveney of Coldwell Banker Realty – Hingham was the listing agent, and Ann Charlotte Hogstadius of RE/MAX Real Estate Center represented the buyer.
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No. 5 — $5,700,000 · 22 Liberty Dr Unit 11C, Boston, Massachusetts

Water is the point of this South Boston condominium at 22 Liberty Drive, which sold for $5,700,000. The building sits on the harbor, and the residence has water views and two private balconies. Ten-foot ceilings run through an open plan that moves from a living room with custom built-ins to a dining area that looks across the harbor and opens onto the first balcony.
The kitchen has a Wolf range, Miele and Sub-Zero appliances, a wine chiller and a waterfall island, with white lacquer cabinetry, quartz counters and a picture window facing the water. The primary suite has its own water view and the second balcony, along with two walk-in closets and a marble bath with a soaking tub, a glass shower and a double vanity. The second bedroom is also a suite with water views.
The condominium has three bedrooms, three bathrooms, two full and one half, and 2,162 square feet, with a two-car garage. The building includes elevators, a fitness center and a clubroom. It was built in 2015, and the property last sold that year for $3.95 million.
Mizner + Montero of Gibson Sotheby’s International Realty was the listing agent and also represented the buyer, so the same agent was on both sides of the sale. It was the second listing in this Top 5 for Gibson Sotheby’s International Realty, which also listed the Beacon Hill carriage house.
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RealtyWire selected these transactions from publicly reported residential sales identified for the calendar week ending Sunday, October 18, 2026. The report may exclude private, off-market, delayed or nondisclosed transactions. Prices, property details and professional representation are reported as available at publication and may be updated following confirmation from transaction participants.
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