Walden Robotics Leases 50,000 SF at 20 Sidney St in Boston

Reported Oct 6, 2026 · Source: Banker & Tradesman

Source: Banker & TradesmanRead the full report at Banker & Tradesman ↗

Deal details

Tenant
Walden Robotics (new HQ)
Landlord
BioMed Realty
Price
Not disclosed
Size
50,000 SF
Asset class
Office
Transaction
Lease
Sub-market
Cambridge
Metro
Greater Boston
Reported date
Oct 6, 2026

Summary

20 Sidney St is an office lease in Cambridge, Boston. Other details we have: tenant Walden Robotics (new HQ); landlord BioMed Realty; size 50,000 SF. Banker & Tradesman reports: “The 20 Sidney St. property is part of BioMed’s 1.7 million square-foot University Park campus.” Banker & Tradesman reports: “A startup that began deploying robots at a Toyota factory in February leased 50,000 square feet at a BioMed Realty property in Cambridge.”

Quoted from the article; the other facts come from our own deal listing.

Source: Banker & Tradesman

Read the full report at Banker & Tradesman. What the article says:

  • Deal
    The 20 Sidney St. property is part of BioMed’s 1.7 million square-foot University Park campus.
  • Size / Landlord
    A startup that began deploying robots at a Toyota factory in February leased 50,000 square feet at a BioMed Realty property in Cambridge.
  • Tenant
    In July, Walden Robotics announced that it raised $300 million in funding co-led by Toyota and Deviation Capital.

Article date: 2026-10-06T14:53:39+00:00

Quick answers

Who leased 20 Sidney St?
Walden Robotics leased space at 20 Sidney St in Cambridge, Boston, according to Banker & Tradesman.
How big is 20 Sidney St?
50,000 SF, as listed from the source.
When was this lease reported?
Reported Oct 6, 2026 by Banker & Tradesman.

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Compiled from public sources; details can differ between sources. Always verify with the linked source.