Independent site. Data from NYC Open Data; not affiliated with the City of New York.

NYC Property Factsfree public-records reference

180 9th Avenue, Manhattan, NY 10011

BBL 1007450001 (Borough 1, Block 745, Lot 1) · BIN 1013278 · Last updated:

Also recorded in city data as: 361 W 21 St

Summary · as of November 5, 2026

180 9th Avenue (Manhattan, NY 10011; tax lot BBL 1007450001) is a 7-unit walk-up apartment building (building class C6: walk-up co-op), built around 1848, on a 1,480 sq ft lot zoned R7B. City tax records list the owner as CHELSEA COTTAGE CORP. The Department of Finance's final market value for tax year 2027 is $4,874,000. As of November 5, 2026, NYC Open Data shows one DOB job with a permit issued but no sign-off and one OATH ticket with an unpaid balance. There were seven 311 requests in the past 12 months and no HPD complaints since 2019. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)

Owner of record
CHELSEA COTTAGE CORP
Building class
C6 · Walk-up co-op
Year built · units
1848 · 7 res.
Lot area · zoning
1,480 sq ft · R7B
Market value (DOF)
$4,874,000 FY2027
Last priced deed
—
BBL
1007450001
BIN
1013278

How to cite: NYC Property Facts, “180 9th Avenue, Manhattan, NY 10011 (BBL 1007450001)”, data as of 2026-11-05, https://nycpropertyfacts.com/ny/manhattan/180-9th-avenue-1007450001. Source: NYC Open Data.

Lot & building

Basic facts about the tax lot and building from the city’s PLUTO database.

Owner (as listed by the city)
CHELSEA COTTAGE CORPThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
Building class
C6 – Walk-up co-opThe Department of Finance’s category for what kind of building this is.
Land use
Multi-family walk-up buildingsCity Planning’s broad category of how the lot is used.
Year built
1848Often an estimate for older buildings.
Floors
4
Units
7 residential / 8 totalResidential units are apartments; total includes stores and offices.
Buildings on lot
1
Lot size
1,480 sq ft (24.67 ft × 60 ft)
Building floor area
4,875 sq ft (incl. 800 sq ft commercial)
Zoning
R7B, C2-5The zoning district sets what can be built and used here. Residential district; the overlay (C1/C2…) allows local retail on residential blocks.
Built vs. allowed density (FAR)
3.29 built / 3.00 max residentialFloor Area Ratio = building floor area ÷ lot area. If built FAR is below the maximum, zoning may allow more floor area (other rules apply).
Historic district
Chelsea Historic DistrictExterior changes in a historic district need Landmarks Preservation Commission approval.
Identifiers
BBL 1007450001 (Borough 1, Block 745, Lot 1) · BIN 1013278BBL identifies the tax lot; BIN identifies each building (from DOB/HPD/footprint records).

Source: PLUTO (Dept. of City Planning) — city dataset updated 2026-08-24; data as of 2026-11-05; Building Footprints — city dataset updated 2026-10-25; data as of 2026-11-01

Tax assessment

How the Department of Finance values this lot for property tax.

Market value (tax year 2027, final roll)
$4,874,000The Department of Finance’s estimate of value for tax purposes. It is not an appraisal and is often far from the sale price.
Assessed value
$2,193,300The portion of market value that taxes are calculated on (capped by law for small homes).
Taxable value (final)
$715,111Assessed value minus any exemptions.
Tax class
Tax class 2C – co-op/condo, 2–10 units
Tax yearRollMarket valueAssessed valueTax class
2027Final$4,874,000$2,193,3002C
2026Final$4,623,000$2,080,3502C
2025Final$4,334,000$1,950,3002C

Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-05

Sales & deed history 6

Deeds recorded with the City Register (ACRIS). A deed transfers ownership. A $0 or very low price usually means a transfer between related parties, an estate, or a refinance-related transfer, not a market sale. This is not a title search; mortgages, liens and other documents are not shown.

DateTypePriceSeller (grantor)Buyer (grantee)Doc ID
1987-10-22DEED$0 / not statedDemott, Harry J JrChelsea Cottage CorpFT_1270000229627
1978-05-25DEED$0 / not stated
one deed covering 2120 lots; price is for all of them
Commissioner Of Finance NyCity Of New YorkFT_1650008590765
1975-11-20DEED$0 / not statedHarmele IncDemott, Harry J JrFT_1910008555291
1971-05-13DEED$0 / not statedRennert, Aaron MHarmerle IncFT_1140008488414
1970-09-24DEED$0 / not statedHarmerle IncRennert, Aaron MFT_1500008479250
1970-09-14DEED$0 / not statedVukelich, Mary S Tr; Vukelich, Peter N DecdHarmerle IncFT_1810008478881

Source: ACRIS Real Property Master — city dataset updated 2026-10-08; data as of 2026-11-05; ACRIS Real Property Legals — city dataset updated 2026-10-08; data as of 2026-11-05; ACRIS Real Property Parties — city dataset updated 2026-10-08; data as of 2026-11-05

DOB job filings 1 open of 9

A “job” is an application to the Department of Buildings to do construction work. A job marked Permitted, not signed off had a work permit issued but the city has no record of final sign-off (inspection/completion). Old jobs left in this state are common and appear in buyer and lender due diligence; the work may or may not have been done.

StatusJob #TypeFiledEst. cost
Permitted, not signed off
Permit Entire · 2025-02-10
M01010241-I1
DOB NOW
Alteration2024-03-08$25,200
Not open
LOC Issued · 2026-07-29
M01303359-I1
DOB NOW
Alteration2025-11-25$25,200
Not open
LOC Issued · 2022-04-12
M00522308-I1
DOB NOW
Alteration2021-07-12$10,500
Not open
LOC Issued · 2022-04-25
M00522277-I1
DOB NOW
Alteration2021-07-12$20,000
Not open
LOC Issued · 2022-03-09
M00319439-I1
DOB NOW
Alteration2020-02-26$11,000
Not open
LOC Issued · 2022-03-09
M00319958-I1
DOB NOW
Alteration2020-02-26$25,000
Not open
SIGNED OFF · 2016-12-09
122729100
BIS
A2 – Alteration with multiple work types (no change to use/occupancy)2016-04-28$78,000
Not open
SIGNED OFF · 2015-11-12
140293652
BIS
A2 – Alteration with multiple work types (no change to use/occupancy)2014-12-17$48,000
Not open
SIGNED OFF · 2015-11-12
140285377
BIS
A2 – Alteration with multiple work types (no change to use/occupancy)2014-11-25$206,425

Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-01; data as of 2026-11-05; DOB Job Application Filings (BIS) — city dataset updated 2026-11-04; data as of 2026-11-05

Work permits 17

Individual permits issued under DOB jobs (one job can have several permits, e.g. plumbing and construction). Permit expiration alone does not mean the job was completed or signed off.

IssuedExpiresJob #WorkPermit status
2026-06-232026-06-30M01303359-I1
DOB NOW
General Construction
MINOR PARTITION WORK AND REPAIR FLOORING AS PER PLAN. NO CHANGE IN USE, EGRESS, OROCCUPANCY IN THIS APPLICATION.
Signed-off
2025-12-242026-05-20M01303359-I1
DOB NOW
General Construction
MINOR PARTITION WORK AND REPAIR FLOORING AS PER PLAN. NO CHANGE IN USE, EGRESS, OROCCUPANCY IN THIS APPLICATION.
Signed-off
2025-02-102025-08-30M01010241-I1
DOB NOW
General Construction
MINOR PARTITION WORK AND REPAIR FLOORING AS PER PLAN. NO CHANGE IN USE, EGRESS, OROCCUPANCY IN THIS APPLICATION.
Permit Issued
2024-03-202024-08-30M01010241-I1
DOB NOW
General Construction
MINOR PARTITION WORK AND REPAIR FLOORING AS PER PLAN. NO CHANGE IN USE, EGRESS, OROCCUPANCY IN THIS APPLICATION.
Permit Issued
2022-04-022023-02-09M00522277-I1
DOB NOW
General Construction
Alteration to existing apartment 1F on the 2nd floor. Relocation of non-load bearing partitions. Update kitchen and bath. No changes to existing use, egress, or
Signed-off
2021-12-092022-04-16M00319439-I1
DOB NOW
Plumbing
INTERIOR PLUMBING FOR NEW GAS METER AND GAS COOKING FIXTURES AS SHOWN HEREWITH. NO CHANGES TO EGRESS, OCCUPANCY OR USE
Signed-off
2021-11-042022-07-06M00522308-I1
DOB NOW
Plumbing
Plumbing work related to Alteration to existing apartment 1F on the 2nd floor. Relocation of non-load bearing partitions. Update kitchen and bath. No changes to
Signed-off
2021-10-282022-03-19M00522277-I1
DOB NOW
General Construction
Alteration to existing apartment 1F on the 2nd floor. Relocation of non-load bearing partitions. Update kitchen and bath. No changes to existing use, egress, or
Signed-off
2020-07-242021-07-24M00319439-I1
DOB NOW
Plumbing
INTERIOR PLUMBING FOR NEW GAS METER AND GAS COOKING FIXTURES AS SHOWN HEREWITH. NO CHANGES TO EGRESS, OCCUPANCY OR USE
Signed-off
2020-06-182021-01-19M00319958-I1
DOB NOW
Mechanical Systems
INSTALLATION OF HOOD AND ASSOCIATED DUCT WORK AS SHOWN HEREWITH. NO CHANGES TO EGRESS, OCCUPANCY OR USE.
Signed-off
2016-05-022017-05-02122729100
BIS
Plumbing / PlumbingISSUED (initial)
2016-04-282017-03-31122729100
BIS
Equipment work / Other / general constructionISSUED (initial)

Showing 12 of 17 records. The API and the source dataset have the full list.

Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-02; data as of 2026-11-05; DOB Permit Issuance (BIS) — city dataset updated 2026-10-31; data as of 2026-10-31

DOB violations 0 active of 6

Violations issued by the Department of Buildings for building-code or zoning conditions. Active means DOB has not recorded the violation as resolved or dismissed. Many active DOB violations are old (e.g. elevator or boiler inspection paperwork).

StatusIssuedTypeDescriptionNumber
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2013-03-01LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2011 INSPECTION REPORTV*030113LBLVIO00839
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2011-12-13LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDVIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2010 INSPECTION REPORTV*121311LBLVIO01056
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2009-12-31LBLVIO-LOW PRESSURE BOILER BOILER REQUIREDV*123109LBLVIO01314
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
2009-01-01LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIREDV*010109LL629101013
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
1996-04-17LANDMK-LANDMARK NONEV*041796LANDMK96-0492
Resolved/dismissed
V*-DOB VIOLATION - DISMISSED
1996-04-17LANDMRK-LANDMARK NONEV*041796LANDMRKVIOL

Source: DOB Violations — city dataset updated 2026-11-02; data as of 2026-11-05

ECB violations (DOB) 0 active of 0

DOB violations that go to a hearing at OATH (formerly the Environmental Control Board) and can carry fines. Active or Resolved follows the DOB violation status field. The hearing status is about the hearing and its penalty: written off means the city stopped collecting the fine, not that the condition was corrected. A balance due is a fine the city says is unpaid.

No records found in this dataset for this lot.

Source: DOB ECB Violations — city dataset updated 2026-10-31; data as of 2026-11-05

OATH tickets (all agencies) 1 unpaid of 70

Summonses heard at the Office of Administrative Trials and Hearings, from agencies like Sanitation, Buildings, Fire and Health, linked to this lot’s block and lot. Default means the respondent did not appear at the hearing, which typically results in the maximum penalty. Tickets may be issued to tenants or businesses at the address, not just the owner. DOB ECB tickets appear here too.

StatusDateAgencyChargeRespondentImposed / paid / balanceTicket #
Unpaid balance Default
DOCKETED · DEFAULTED
2023-08-16Dep - Bureau Of Env. CompliancIDLING MOTOR VEHICLE ENGIN OVER 1MIN WHILE ADJACENT TO SCHOOL 3RD SUBAVALON AIR INC$2,000 / $0 / $3,000000803435X
Hearing pending
NEW ISSUANCE
2026-09-09Sanitation OthersSTORAGE OF RECEPTACLES NON-COLLECTION DAYCHELSEA COTTAGE CORP$50 / $0 / $50049998066K
No balance due
PAID IN FULL
2025-10-05Sanitation OthersFAILURE TO CLEAN 18 INCHES INTO STREETCHELSEA COTTAGE CORP$50 / $50 / $0049324084N
No balance due
PAID IN FULL
2024-04-06Sanitation OthersDIRTY SIDEWALKCHELSEA COTTAGE CORP$50 / $50 / $0048245587N
No balance due
PAID IN FULL
2023-03-27Dos - Enforcement AgentsSTORAGE OF RECEPTACLES 1ST OCCURRENCECHELSEA COTTAGE CORP$50 / $50 / $0047802160R
No balance due
PAID IN FULL
2023-02-24Sanitation OthersFAILURE TO CLEAN 18 INCHES INTO STREETCHELSEA COTTAGE CORP$50 / $50 / $0047737050H
No balance due
PAID IN FULL
2023-01-13Dos - Enforcement AgentsSTORAGE OF RECEPTACLES 1ST OCCURRENCECHELSEA COTTAGE CORP$50 / $50 / $0047727876P
No balance due
PAID IN FULL
2022-12-10Sanitation OthersSPILLAGE FROM A RECEPTACLE 1ST OFFENSECHELSEA COTTAGE CORP$50 / $50 / $0047666097J
No balance due
PAID IN FULL
2022-11-11Sanitation RecyclingDIRTY AREACHELSEA COTTAGE CORP$50 / $50 / $0047602120X
No balance due
HEARING COMPLETED · DISMISSED
2022-09-03Miscellaneous AgenciesUNREAS NOISE: SOUND REPRO DEVICE FOR COMM BUS ADVT PURPOSEQANOON CORP DBA QANOON$0 / $0 / $00216426861
No balance due
PAID IN FULL · SETTL IN-VIO
2022-02-09Dos - Enforcement AgentsFAILURE TO PROPERLY PUT RECYCS OUT FOR COLLECTION 1TO8DWELLING UNITSCHELSEA COTTAGE CORP$25 / $26 / $0047288339H
No balance due
PAID IN FULL
2021-07-14Sanitation OthersLOOSE RUBBISHCHELSEA COTTAGE CORP$100 / $100 / $0047267808Z

Showing 12 of 70 records. The API and the source dataset have the full list.

Source: OATH Hearings Division Case Status — city dataset updated 2026-11-02; data as of 2026-11-05

HPD registration & contacts

Owners of most rental buildings must register with the Department of Housing Preservation and Development each year and list an owner and managing agent.

HPD building ID
4605
Last registered
2026-08-21
Registration valid until
2027-09-01 CurrentRegistrations must be renewed every year.
RoleNameCompanyBusiness city
OfficerDorota DuszaNew York, Ny
CorporateownerCHELSEA COTTAGE CORP.New York, Ny
HeadofficerHarry DemottNew York, Ny
SitemanagerDorota Dusza
AgentSharif RashedBUCHBINDER & WARRREN LLCNew York, Ny

Source: HPD Multiple Dwelling Registrations — city dataset updated 2026-11-04; data as of 2026-11-05; HPD Registration Contacts — city dataset updated 2026-11-04; data as of 2026-11-05

HPD housing-code violations 0 open of 2

Violations HPD inspectors issued for conditions in residential buildings (heat, leaks, mold, pests, lead paint, etc.). Class letters show how serious: Class A – non-hazardous (HPD gives 90 days to correct); Class B – hazardous (30 days to correct); Class C – immediately hazardous (24 hours to correct for most conditions); Class I – information / order (e.g. orders to register, lead or other administrative orders). Open means HPD has not recorded the condition as corrected.

StatusClassIssuedAptCondition
Closed
Violation Dismissed · 2023-10-16
B2023-06-21D26-10.01 ADM CODE PROPERLY REPAIR THE BROKEN OR DEFECTIVE SPALLING WINDOW LINTEL 3 STY SOUTH WINDOW AT WEST.
Closed
Violation Dismissed · 2023-10-16
B2023-06-21§ 27-2040 ADM CODE PROVIDE ADEQUATE LIGHTING AT OR NEAR THE OUTSIDE OF THE FRONT ENTRANCEWAY OF THE BUILDING AND KEEP SAME BURNING FROM SUNSET EVERY DAY TO SUNRISE ON THE DAY FOLLOWING ***MINIMUM 100 WATTS OF INCANDESCENT LIGHT REQUIRED***

Source: HPD Housing Maintenance Code Violations — city dataset updated 2026-11-05; data as of 2026-11-05

HPD complaints 0

Complaints tenants or others made to HPD (usually via 311) about housing conditions, from 2019 onward. A complaint is not a violation; HPD may inspect and issue one.

No records found in this dataset for this lot.

Source: HPD Housing Maintenance Code Complaints and Problems — city dataset updated 2026-11-05; data as of 2026-11-05

311 requests (last 12 months) 7

Recent 311 service requests the city geocoded to this lot: noise, illegal parking, heat, sanitation and more. Anyone can file them, so they describe activity at or near the address, not necessarily the building itself.

OpenedAgencyComplaintStatusClosed
2026-09-17DOTSidewalk Condition – Sidewalk ViolationClosed2026-09-29
2026-08-14DHSHomeless Person Assistance – Non-ChronicClosed2026-08-15
2026-08-01DOBReal Time Enforcement – Work Without A Permit - Occupied Multiple DwellingClosed2026-08-03
2026-07-10DPRDamaged Tree – Tree Alive - in Poor ConditionClosed2026-07-23
2026-04-15DSNYLitter Basket Request – Replacement BasketClosed2026-04-18
2025-12-08DOTSidewalk Condition – Sidewalk ViolationClosed2025-12-23
2025-11-25DOHMHFood Establishment – Rodents/Insects/GarbageClosed2026-01-24

Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-05; data as of 2026-11-05

Nearby properties

On 9 Ave

Same tax block (745)

All properties on 9 Ave, Manhattan · All of Manhattan 10011

Open-item counts as of November 5, 2026; each section lists its own dataset date. Machine-readable: JSON API · Markdown · Plain text · API & MCP docs