In 2025, the Golden Triangle emerged as one of the South End’s strongest performing sub-markets. The neighborhood recorded 19 sales totaling $65,679,000, with an average price of $1,457.94 per square foot, accounting for 18.16% of all South End sales volume for the year. While transaction count moderated from 24 sales in 2024, total dollar volume remained resilient, down modestly from $76,957,400, and pricing continued to trend upward from $1,421 per square foot in 2024. Historical context reinforces the neighborhood’s durability, with $48.9M in sales in 2023 and $70.7M in 2022, underscoring consistent long-term demand even amid shifting market conditions.

Negotiation dynamics in 2025 reflected a more discerning buyer pool. Of the 19 sales, 13 closed below asking, with the most notable adjustment occurring at 27 Appleton Street. The property traded at $2,925,000, a full $370,000 below its $3,295,000 asking price. Only one sale exceeded asking, at 6 Dartmouth Place, which sold for $3,650,000 after being listed at $3,600,000, while the remaining five transactions closed at list price.

Overall, the Golden Triangle ranked as the third highest-performing South End sub-neighborhood in 2025. 

The top sale of 2025 was a single-family residence at 155 Warren Avenue, which closed at $6,100,000 after originally being offered at $6,999,000. This was followed by 505 Tremont Street, Unit 905, which traded for $5,250,000, further cementing The Atelier at 505 Tremont as a cornerstone of the sub-neighborhood. One of the South End’s few full-service residential buildings—offering a doorman, concierge, and elevator service outside of Ink Block—Atelier 505 has consistently attracted top-tier buyers since its construction in 2005. In 2025 alone, the building closed three sales above $2M, continuing its dominance after also securing the neighborhood’s top sale in 2024 at $4,900,000, or $2,114.80 per square foot.