Office space for sublease in the Upper East Side

No office space for sublease in the Upper East Side is listed on Leasemark right now. There is 1 space for lease there: 783 Madison 4th Floor (994 SF, $66.40/SF/yr). 1 tenant is looking for office space there. On each listing page, I'm interested asks the lister for an intro, and contact details are shared once both sides accept.

See 783 Madison 4th Floor

Office space for lease on Leasemark in the Upper East Side currently asks $66.40 per square foot per year. Rents depend on building class, floor, condition and lease length, so treat these as a starting point.

Post a requirement on Leasemark. Owners and listing brokers see what you need (without your contact details) and can respond with spaces, including ones that are not on the market yet. You choose who gets an intro.

You rent the space from the company that leases it now rather than from the landlord, for part of that company's remaining term. Subleases often come built out and furnished, run shorter than a direct lease and usually ask less than comparable direct space. The landlord has to consent in writing before anyone moves in, and the sublease ends when the lease above it does. Leasemark matches sublease listings with tenants looking to lease or sublease.

Read the guide to subleasing office space in NYC

Usually, with your landlord's written consent: most New York office leases require it, and many let the landlord take the space back instead (recapture) or claim a share of any rent above what you pay. You stay liable under your own lease while the subtenant is in. Read the subletting clause first, then list the space for free on Leasemark, where it is matched against every active requirement for this kind of space.

List your sublease for free

New York City's PLUTO tax lot data (26v2) records about 8.6 million square feet of office floor area across 835 properties in the part of the Upper East Side Leasemark covers. The largest by that measure is 413 East 69th Street, at about 243,000 square feet. That is the existing building stock, not space currently for sublease.

Ten subway stations sit within about 0.6 mi of the Upper East Side's commercial core, served by the 4, 5, 6, M, N, Q, R and W trains. The closest is 77 St (6), roughly 1 minute on foot; then 86 St (4 5 6), 68 St-Hunter College (6), 86 St (Q), Lexington Av/63 St (M Q), 72 St (Q), Lexington Av/59 St (N R W 4 5 6) and 3 more. Walking times are straight-line estimates from MTA station data.

In the 12 months to October 2026, the Department of Buildings issued first permits for 13 interior build-outs in 6 of the 18 office buildings Leasemark tracks in the Upper East Side, with work permitted on 16 floors in all. Their filed cost estimates add up to about $8.5 million. The most were at 210 East 86th Street (6 build-outs). A build-out here is interior work on the same floors (construction, mechanical, plumbing, sprinklers and the like) first permitted within 120 days. New interior work usually follows a lease, so it is a rough sign of where tenants are moving in, but a permit does not say who the work is for.

Build-outs in every NYC neighborhood

It depends on the address. The tax covers Manhattan premises south of the center line of 96th Street, and the Upper East Side runs up to that line: space below 96th Street is in the zone, space above it is not. A tenant owes it only when base rent for the space is $250,000 a year or more. The tax is 6% of base rent after a 35% reduction, so 3.9% of rent, with a sliding credit between $250,000 and $300,000, and the Small Business Tax Credit wipes it out for businesses with total income of $5 million or less and base rent under $500,000.

Estimate it with the Commercial Rent Tax calculator

Yes. Posting a space or a requirement is free. Contact details are only shared when both sides accept an intro.