Back Bay prime stock delivers a mid-to-high Cat-A baseline; tenant fit-out is typically Mid or High-end spec.

• Typical spec: 20-40,000 sqft floor plates.
• Boston fit-out range — Basic $110–150/sqft, Trophy $320–470/sqft.
• Submarket tier: prime.

TL;DR

• Typical spec: 20-40,000 sqft floor plates.
• Boston fit-out range — Basic $110–150/sqft, Trophy $320–470/sqft.
• Submarket tier: prime.

Spec baseline

20-40,000 sqft floor plates.

Cost bands

City-wide Boston fit-out bands: Basic $110–150/sqft, Mid $155–220/sqft, High-end $225–320/sqft, Trophy $320–470/sqft.

Key facts

Frequently asked questions

What spec level is normal in Back Bay?

20-40,000 sqft floor plates.

Related

• Back Bay — submarket overview
• Boston — full city profile
• Boston submarkets — all
• Back Bay — Rents
• Back Bay — Tenants
• Back Bay — Transit
• Back Bay — Amenity

Editorial provenance

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

Primary sources for this page

• CBRE Marketview reports — CBRE
• JLL Office Insight — JLL
• Cushman & Wakefield Marketbeat — Cushman & Wakefield
• Savills World Research — Savills
• Colliers Global Office Outlook — Colliers

Full sources index · Submit a correction

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