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Manhattan • Condo

400 East 84th St

Manhattan, NY 10028Company-ownedBBL 1015637501BIN 1085139
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16 sources

Year Built1994
Floors43
Units183
Building Area238,600 sqft
ZoningC1-9
ClassRM
Market Value$85.5M

400 EAST 84TH ST is a property located at 400 EAST 84TH ST, Manhattan, NY 10028. It is classified as a condo - residential unit. The building was constructed in 1994. It has 43 floors and 183 units. The building area is 238,600 square feet on a 17,016 sqft lot. The property is zoned C1-9. The assessed market value is $85.5M. It last sold for $254.7M on Jan 29, 2026. Public records list the property as company-owned. There are 296 building permits on record (161 active). There are 18 violations on record (9 currently open). Data sourced from NYC Department of Buildings (DOB), Housing Preservation & Development (HPD), Department of Finance (DOF), and other government agencies.

A RegWatch Dossier

345records on file
29Energy Star

Completed in 1994, 400 East 84TH St rises 43 stories over New York. Public records put it at 183 units and 238,600 square feet of floor area, on land zoned C1-9. It is carried on the public rolls at a market value of $85.5M, and assessed for tax at $38.5M. In the 34 years its record reaches back, the lot has drawn 345 separate government filings.

The documentary life of the address leans hard toward permit: 296 of its 345 records, fully 86%, fall under that one heading. Violation (18) and inspection (10) trail well behind. 9 violations stand open against it today.

The pace is anything but even. The early decades pass in near silence; the filings cluster heavily in recent years, peaking in 2026.

On the environmental ledger, the building posts an Energy Star score of 29, with a site energy-use intensity of 78.8 kBtu per square foot. Its operations answer for roughly 1,508 metric tons of CO2-equivalent a year.

Read together — 86% permit, 34 years of accumulation, a parcel of New York — these scattered records compose a portrait of the address that no single page sets out to draw.

86% of every record here performs the same act: permit.

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Executive summary, compliance history, title chain & existing debt, recorded documents & agreements, owner contacts, tax detail, Use & Development, build envelope, market comps, investment metrics, deal math & stress tests, deal signals, pre-foreclosure signals, neighborhood. Downloadable PDF. One payment, no subscription.

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Sources
NYC DOBNYC HPDNYC DOFACRISNYC DCPECB/OATHNYC DEPNYC LPCNYC FDNYNYS DHCRMOCEJFEMAEPAUS CensusHUDUSGS
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Property Details

Address400 EAST 84TH ST, Manhattan, NY 10028
Building TypeCondo - Residential Unit
RM
Year Built1994
Floors43
Total Units183
Building Area238,600 sqft
Lot Size17,016 sqft
ZoningC1-9
ConditionAverage
1015637501
1085139 +1 more
OwnershipCompany-owned

Assessment & Sales

$85.5M
$38.5M
$10.1M
$254.7M
Last Sale DateJan 29, 2026

Building Permits

296 on record · 161 active
General ConstructionDOB NOW
LOC ISSUED
Filed Oct 13, 2026Est. cost $70KJob #M01312879-S2
View this permit's full record & inspection history →
General ConstructionDOB NOW
LOC ISSUED
Filed Oct 7, 2026Est. cost $520KJob #M01221784-I1
View this permit's full record & inspection history →
Minor WorkDOB NOW
AHV PERMIT ISSUED
Filed Oct 3, 2026Job #M5353944
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General ConstructionDOB NOW
APPROVED
Filed Oct 2, 2026Est. cost $520KJob #M01221784-A1
View this permit's full record & inspection history →
ElectricalDOB NOW
APPROVED
Filed Oct 2, 2026Job #M01401317-P1

WORKED PERFORMED ON APTS: 25A , 20C, 22B, PH1A, PAA TO ADD 24D ALL OUTLETS, SWITCHES, AND LIGHTS REPLACED WITH NEW. ALL PANELS WERE CHANGED AND BRANCH CIRCUITS ARE EXISTING. NEW BRANCH CIRCUIT FOR KITCHEN AND SPEED OVEN

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+ 291 more permits — view full report

Violations

18 on record · 9 open
SafetyParking Structures
ACTIVE
Issued Sep 23, 2026#VIO-FTF-PS-INITL-202512-0183482

Failure to file parking structures compliance report by 12/31/2025 as required per 1 RCNY 103-13

View this violation's full details & status history →
SafetyAEUHAZ
ACTIVE
Issued Jul 30, 2026#VIO-FTC-AEU-HAZ-202607-0038036
View this violation's full details & status history →
SafetyAEUHAZ
ACTIVE
Issued Jul 30, 2026#VIO-FTC-AEU-HAZ-202607-0038045
View this violation's full details & status history →
SafetyAEUHAZ
ACTIVE
Issued Jul 30, 2026#VIO-FTC-AEU-HAZ-202607-0038042
View this violation's full details & status history →
SafetyAEUHAZ
ACTIVE
Issued Jul 30, 2026#VIO-FTC-AEU-HAZ-202607-0038043
View this violation's full details & status history →

+ 13 more violations on record — view full report

Get the Complete Report for 400 EAST 84TH ST

Title history, detailed tax records, environmental data, zoning analysis, and more from 250+ government sources.

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Frequently Asked Questions

When was 400 EAST 84TH ST, Manhattan built?

The building at 400 EAST 84TH ST, Manhattan, NY 10028 was constructed in 1994. It is classified as a condo - residential unit with 43 floors and 183 units. The building area is 238,600 sqft.

Are there building permits at 400 EAST 84TH ST, Manhattan?

Yes. 400 EAST 84TH ST, Manhattan, NY 10028 has 296 building permits on record, with 161 currently active. Permits are sourced from the NYC Department of Buildings (DOB Legacy and DOB NOW systems). The most recent permit is a General Construction (LOC ISSUED) filed Oct 13, 2026.

Does 400 EAST 84TH ST, Manhattan have violations?

Yes. 400 EAST 84TH ST, Manhattan, NY 10028 has 18 violations on record, with 9 currently open. Breakdown: 8 DOB Safety, 10 ECB. Sources: NYC DOB, HPD, and ECB/OATH.

Does 400 EAST 84TH ST, Manhattan have docketed judgments?

No docketed OATH judgments were found in local records for 400 EAST 84TH ST, Manhattan, NY 10028. Judgment data is sourced from NYC Office of Administrative Trials & Hearings (OATH) hearing records.

What is the property tax assessment for 400 EAST 84TH ST?

400 EAST 84TH ST, Manhattan, NY 10028 has an assessed market value of $85.5M and a total assessed value of $38.5M (land: $10.1M). Assessment data is from the NYC Department of Finance (DOF).

When was 400 EAST 84TH ST last sold?

400 EAST 84TH ST, Manhattan, NY 10028 last sold for $254.7M on Jan 29, 2026. Sale records are sourced from NYC ACRIS and Department of Finance rolling sales data.

What is the zoning for 400 EAST 84TH ST?

400 EAST 84TH ST, Manhattan, NY 10028 is zoned C1-9. Zoning data is from the NYC Department of City Planning (DCP). For detailed FAR, overlays, and development rights, view the full property report on RegWatch.

Who owns 400 EAST 84TH ST?

400 EAST 84TH ST, Manhattan, NY 10028 is company-owned according to public records. Ownership data is from NYC Department of Finance assessment rolls. View the current owner of record and registered contacts in the full property report on RegWatch.

How do I get a full property report for 400 EAST 84TH ST?

Search 400 EAST 84TH ST on RegWatch to see its public record free — violations, permits, tax records, zoning, environmental data, and more from 250+ government sources, no credit card required. A Full Analysis report ($15, one-time) adds the complete title history, owner contacts, and a downloadable PDF.

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400 EAST 84TH ST, Manhattan, NY 10028 — Property Records, Permits, Violations, Tax & Zoning | RegWatch