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
- 1Open DOB jobs (permit issued, no sign-off)
- 0Active DOB violations
- 0Active ECB violations
- 0Open HPD violations
- 1OATH tickets with unpaid balance
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).
Agency lookups: DOB BIS · ZoLa (zoning map) · ACRIS
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 year | Roll | Market value | Assessed value | Tax class |
|---|---|---|---|---|
| 2027 | Final | $4,874,000 | $2,193,300 | 2C |
| 2026 | Final | $4,623,000 | $2,080,350 | 2C |
| 2025 | Final | $4,334,000 | $1,950,300 | 2C |
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.
| Date | Type | Price | Seller (grantor) | Buyer (grantee) | Doc ID |
|---|---|---|---|---|---|
| 1987-10-22 | DEED | $0 / not stated | Demott, Harry J Jr | Chelsea Cottage Corp | FT_1270000229627 |
| 1978-05-25 | DEED | $0 / not stated one deed covering 2120 lots; price is for all of them | Commissioner Of Finance Ny | City Of New York | FT_1650008590765 |
| 1975-11-20 | DEED | $0 / not stated | Harmele Inc | Demott, Harry J Jr | FT_1910008555291 |
| 1971-05-13 | DEED | $0 / not stated | Rennert, Aaron M | Harmerle Inc | FT_1140008488414 |
| 1970-09-24 | DEED | $0 / not stated | Harmerle Inc | Rennert, Aaron M | FT_1500008479250 |
| 1970-09-14 | DEED | $0 / not stated | Vukelich, Mary S Tr; Vukelich, Peter N Decd | Harmerle Inc | FT_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.
| Status | Job # | Type | Filed | Est. cost |
|---|---|---|---|---|
| Permitted, not signed off Permit Entire · 2025-02-10 | M01010241-I1 DOB NOW | Alteration | 2024-03-08 | $25,200 |
| Not open LOC Issued · 2026-07-29 | M01303359-I1 DOB NOW | Alteration | 2025-11-25 | $25,200 |
| Not open LOC Issued · 2022-04-12 | M00522308-I1 DOB NOW | Alteration | 2021-07-12 | $10,500 |
| Not open LOC Issued · 2022-04-25 | M00522277-I1 DOB NOW | Alteration | 2021-07-12 | $20,000 |
| Not open LOC Issued · 2022-03-09 | M00319439-I1 DOB NOW | Alteration | 2020-02-26 | $11,000 |
| Not open LOC Issued · 2022-03-09 | M00319958-I1 DOB NOW | Alteration | 2020-02-26 | $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.
| Issued | Expires | Job # | Work | Permit status |
|---|---|---|---|---|
| 2026-06-23 | 2026-06-30 | M01303359-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 |
| 2025-12-24 | 2026-05-20 | M01303359-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 |
| 2025-02-10 | 2025-08-30 | M01010241-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 |
| 2024-03-20 | 2024-08-30 | M01010241-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 |
| 2022-04-02 | 2023-02-09 | M00522277-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 |
| 2021-12-09 | 2022-04-16 | M00319439-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 |
| 2021-11-04 | 2022-07-06 | M00522308-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 |
| 2021-10-28 | 2022-03-19 | M00522277-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 |
| 2020-07-24 | 2021-07-24 | M00319439-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 |
| 2020-06-18 | 2021-01-19 | M00319958-I1 DOB NOW | Mechanical Systems INSTALLATION OF HOOD AND ASSOCIATED DUCT WORK AS SHOWN HEREWITH. NO CHANGES TO EGRESS, OCCUPANCY OR USE. | Signed-off |
| 2016-05-02 | 2017-05-02 | 122729100 BIS | Plumbing / Plumbing | ISSUED (initial) |
| 2016-04-28 | 2017-03-31 | 122729100 BIS | Equipment work / Other / general construction | ISSUED (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).
| Status | Issued | Type | Description | Number |
|---|---|---|---|---|
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 2013-03-01 | LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED | VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2011 INSPECTION REPORT | V*030113LBLVIO00839 |
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 2011-12-13 | LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED | VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2010 INSPECTION REPORT | V*121311LBLVIO01056 |
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 2009-12-31 | LBLVIO-LOW PRESSURE BOILER BOILER REQUIRED | V*123109LBLVIO01314 | |
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 2009-01-01 | LL6291-LOCAL LAW 62/91 - BOILERS BOILER REQUIRED | V*010109LL629101013 | |
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 1996-04-17 | LANDMK-LANDMARK NONE | V*041796LANDMK96-0492 | |
| Resolved/dismissed V*-DOB VIOLATION - DISMISSED | 1996-04-17 | LANDMRK-LANDMARK NONE | V*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.
| Status | Date | Agency | Charge | Respondent | Imposed / paid / balance | Ticket # |
|---|---|---|---|---|---|---|
| Unpaid balance Default DOCKETED · DEFAULTED | 2023-08-16 | Dep - Bureau Of Env. Complianc | IDLING MOTOR VEHICLE ENGIN OVER 1MIN WHILE ADJACENT TO SCHOOL 3RD SUB | AVALON AIR INC | $2,000 / $0 / $3,000 | 000803435X |
| Hearing pending NEW ISSUANCE | 2026-09-09 | Sanitation Others | STORAGE OF RECEPTACLES NON-COLLECTION DAY | CHELSEA COTTAGE CORP | $50 / $0 / $50 | 049998066K |
| No balance due PAID IN FULL | 2025-10-05 | Sanitation Others | FAILURE TO CLEAN 18 INCHES INTO STREET | CHELSEA COTTAGE CORP | $50 / $50 / $0 | 049324084N |
| No balance due PAID IN FULL | 2024-04-06 | Sanitation Others | DIRTY SIDEWALK | CHELSEA COTTAGE CORP | $50 / $50 / $0 | 048245587N |
| No balance due PAID IN FULL | 2023-03-27 | Dos - Enforcement Agents | STORAGE OF RECEPTACLES 1ST OCCURRENCE | CHELSEA COTTAGE CORP | $50 / $50 / $0 | 047802160R |
| No balance due PAID IN FULL | 2023-02-24 | Sanitation Others | FAILURE TO CLEAN 18 INCHES INTO STREET | CHELSEA COTTAGE CORP | $50 / $50 / $0 | 047737050H |
| No balance due PAID IN FULL | 2023-01-13 | Dos - Enforcement Agents | STORAGE OF RECEPTACLES 1ST OCCURRENCE | CHELSEA COTTAGE CORP | $50 / $50 / $0 | 047727876P |
| No balance due PAID IN FULL | 2022-12-10 | Sanitation Others | SPILLAGE FROM A RECEPTACLE 1ST OFFENSE | CHELSEA COTTAGE CORP | $50 / $50 / $0 | 047666097J |
| No balance due PAID IN FULL | 2022-11-11 | Sanitation Recycling | DIRTY AREA | CHELSEA COTTAGE CORP | $50 / $50 / $0 | 047602120X |
| No balance due HEARING COMPLETED · DISMISSED | 2022-09-03 | Miscellaneous Agencies | UNREAS NOISE: SOUND REPRO DEVICE FOR COMM BUS ADVT PURPOSE | QANOON CORP DBA QANOON | $0 / $0 / $0 | 0216426861 |
| No balance due PAID IN FULL · SETTL IN-VIO | 2022-02-09 | Dos - Enforcement Agents | FAILURE TO PROPERLY PUT RECYCS OUT FOR COLLECTION 1TO8DWELLING UNITS | CHELSEA COTTAGE CORP | $25 / $26 / $0 | 047288339H |
| No balance due PAID IN FULL | 2021-07-14 | Sanitation Others | LOOSE RUBBISH | CHELSEA COTTAGE CORP | $100 / $100 / $0 | 047267808Z |
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.
| Role | Name | Company | Business city |
|---|---|---|---|
| Officer | Dorota Dusza | New York, Ny | |
| Corporateowner | CHELSEA COTTAGE CORP. | New York, Ny | |
| Headofficer | Harry Demott | New York, Ny | |
| Sitemanager | Dorota Dusza | ||
| Agent | Sharif Rashed | BUCHBINDER & WARRREN LLC | New 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.
| Status | Class | Issued | Apt | Condition |
|---|---|---|---|---|
| Closed Violation Dismissed · 2023-10-16 | B | 2023-06-21 | D26-10.01 ADM CODE PROPERLY REPAIR THE BROKEN OR DEFECTIVE SPALLING WINDOW LINTEL 3 STY SOUTH WINDOW AT WEST. | |
| Closed Violation Dismissed · 2023-10-16 | B | 2023-06-21 | § 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.
| Opened | Agency | Complaint | Status | Closed |
|---|---|---|---|---|
| 2026-09-17 | DOT | Sidewalk Condition – Sidewalk Violation | Closed | 2026-09-29 |
| 2026-08-14 | DHS | Homeless Person Assistance – Non-Chronic | Closed | 2026-08-15 |
| 2026-08-01 | DOB | Real Time Enforcement – Work Without A Permit - Occupied Multiple Dwelling | Closed | 2026-08-03 |
| 2026-07-10 | DPR | Damaged Tree – Tree Alive - in Poor Condition | Closed | 2026-07-23 |
| 2026-04-15 | DSNY | Litter Basket Request – Replacement Basket | Closed | 2026-04-18 |
| 2025-12-08 | DOT | Sidewalk Condition – Sidewalk Violation | Closed | 2025-12-23 |
| 2025-11-25 | DOHMH | Food Establishment – Rodents/Insects/Garbage | Closed | 2026-01-24 |
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
- 182 9th Avenue (32 open items)
- 177 9th Avenue (25 open items)
- 184 9th Avenue (two open items)
- 186 9th Avenue (four open items)
- 187 9th Avenue (nine open items)
- 189 9th Avenue (six open items)
- 170 9th Avenue (40 open items)
- 169 9th Avenue (115 open items)
- 191 9th Avenue (eight open items)
- 193 9th Avenue (two open items)
Same tax block (745)
- 184 9th Avenue (two open items)
- 186 9th Avenue (four open items)
- 359 West 21st Street
- 357 West 21st Street (one open item)
- 355 West 21st Street
- 353 West 21st Street
- 351 West 21st Street (30 open items)
- 349 West 21st Street (five open items)
- 347 West 21st Street (20 open items)
- 345 West 21st Street (two open items)
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