Post Office Square is a trophy-tier Boston submarket with average asking rent around $82/sqft/yr.

  • Average asking rent: $82/sqft/yr.
  • Tier: trophy.
  • Citywide Class A rent context: $78/sqft/yr ($78 USD).
  • Citywide vacancy: 19.5% — submarket-level availability is typically tighter at trophy tier.

Post Office Square, Boston office rents and availability

Post Office Square is a trophy-tier Boston submarket with average asking rent around $82/sqft/yr.

TL;DR

  • Average asking rent: $82/sqft/yr.
  • Tier: trophy.
  • Citywide Class A rent context: $78/sqft/yr ($78 USD).
  • Citywide vacancy: 19.5% — submarket-level availability is typically tighter at trophy tier.

Where rent sits

Post Office Square averages around $82/sqft/yr for Class A, against a citywide Class A index of 78. As a trophy submarket, rent runs above the city average and availability is structurally tight.

Availability dynamics

Boutique trophy core within the Financial District. Asset management, hedge funds, boutique law, family offices.

Key facts

cityBoston
submarketPost Office Square
tiertrophy
averageRentLocal$82/sqft/yr
cityClassARentUsd$78/sqft/yr
cityVacancyPct19.5%

Frequently asked questions

What is the average Class A rent in Post Office Square, Boston?
Around $82/sqft/yr. The citywide Class A index sits at $78/sqft/yr.

Related

Editorial provenance

Reviewed by Miriam Hollander — Lead market analyst. Last updated 2026-04-15. See our methodology and editorial standards.

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