Post Office Square (trophy, ~$82/sqft/yr) is one of 6 Boston Class A submarkets we track.
Post Office Square (trophy, ~$82/sqft/yr) is one of 6 Boston Class A submarkets we track.
**Financial District** (trophy, $80/sqft/yr) — Boston's traditional CBD. **Cambridge & Kendall Square** (trophy, $110/sqft/yr) — Life sciences capital of the world. **Seaport** (trophy, $85/sqft/yr) — Boston's newest trophy quarter. **Back Bay** (prime, $85/sqft/yr) — Boston's brownstone HQ corridor. **Kendall Square** (trophy, $105/sqft/yr) — The world's densest biotech cluster.
| city | Boston |
|---|---|
| submarket | Post Office Square |
| tier | trophy |
| averageRentLocal | $82/sqft/yr |
| cityClassARentUsd | $78/sqft/yr |
| cityVacancyPct | 19.5% |
Reviewed by Miriam Hollander — Lead market analyst. Last updated 2026-04-15. See our methodology and editorial standards.