As of 2026, the median home sale price in Allston, MA is around $792,000. This figure represents a 23.4% increase compared to the previous year as of November 2025, making it one of the areas with the most significant price increases in the Greater Boston area. In short, the Allston housing market is maintaining strong prices due to a combination of supply shortages and demand from universities, and this trend shows no signs of slowing down in the first half of 2026.

Looking at the numbers, Zillow's Home Value Index (HVI) estimates the average home value in Allston at about $593,918, while the actual median sale price according to Redfin is around $790,000. The difference between these two figures arises from the methods of measurement. The HVI includes estimates for homes that have not sold, while the median sale price is based on the prices of homes that have actually been sold. Data suggests that the median sale price reflects reality more accurately. The median price per square foot is $694, which is an 8.3% increase from the previous year.

In terms of inventory, as of April 2025, the number of listings in Allston increased by 27.8% to 46 homes. Specifically, the number of 3-bedroom listings rose by 150%, while 4-bedroom and 5-bedroom listings increased by 50% and 40%, respectively. Despite the increase in listings, the market has not turned weak due to demand. About 70% of local housing relies on structural demand from students, faculty, and university-related workers, which is relatively insensitive to economic fluctuations. The average time homes stay on the market is about 31 days, indicating that competition remains fierce.

We also need to consider the interest rate environment. As of June 25, 2026, the average interest rate for a 30-year fixed mortgage is 6.582%. It briefly dropped to 6.37% in mid-June, but with the Federal Reserve holding the benchmark rate steady, expectations for a significant drop in the short term are low. If rates remain in the mid-6% range, there may be limits to purchasing power, and the rapid price increases in the market could gradually ease.

• Allston Median Sale Price (as of November 2025): approximately $790,000 (up 23.4% YoY)
• Average Home Value (Zillow HVI): approximately $593,918 (down 1.1% YoY)
• Median Price per Square Foot: $694 (up 8.3% YoY)
• Average Time on Market: approximately 31 days
• 30-Year Fixed Mortgage Rate as of June 2026: approximately 6.58%
• Harvard Enterprise Research Campus Phase A: 345 new units expected in 2026

A key variable is the Harvard Enterprise Research Campus (ERC) development project. In Phase A in 2026, 345 new residential units, including Verra, are expected to be supplied, along with life sciences research facilities. While this development may temporarily increase rental supply and stabilize the rental market, in the medium to long term, it is likely to enhance local infrastructure value, putting upward pressure on sale prices. Data shows that areas with large-scale developments tend to see sale prices rise in advance.

In summary, Allston is assessed as a market with limited price adjustment potential despite an increase in supply in 2026, due to a solid demand base. However, with mortgage rates maintaining in the mid-6% range, the purchasing burden for actual buyers remains significant. If you are considering entering the market, it is reasonable to track both interest rate movements and new supply schedules. (Sources: Redfin, Zillow, The Team Coyle Allston/Brighton Investment Guide, BostonPads 2026 Allston Rental Market Report, US News Money June 25, 2026 mortgage rates / This article is not investment or legal advice, and it is recommended to consult a professional before making any actual contracts.)