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1878 3rd Avenue, Manhattan, NY 10029

BBL 1016310038 (Borough 1, Block 1631, Lot 38) · BIN 1051927 · Last updated:

Summary · as of October 31, 2026

1878 3rd Avenue (Manhattan, NY 10029; tax lot BBL 1016310038) is a store building (building class K2: store building (subtype K2)), built around 1910, on a 2,000 sq ft lot zoned R8A. City tax records list the owner as 1878 KAI REALTY LLC; per ACRIS, a deed to this owner dated August 5, 2021 lists a price of $2,525,000. The Department of Finance's final market value for tax year 2027 is $376,000. As of October 31, 2026, NYC Open Data shows one DOB job with a permit issued but no sign-off. There were three 311 requests in the past 12 months and one HPD complaint since 2019. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)

Owner of record
1878 KAI REALTY LLC
Building class
K2 · Store building
Year built · units
1910 · 0 res.
Lot area · zoning
2,000 sq ft · R8A
Market value (DOF)
$376,000 FY2027
Last priced deed
$2,525,000 · 2021-08-05
BBL
1016310038
BIN
1051927

How to cite: NYC Property Facts, “1878 3rd Avenue, Manhattan, NY 10029 (BBL 1016310038)”, data as of 2026-10-31, https://nycpropertyfacts.com/ny/manhattan/1878-3rd-avenue-1016310038. 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)
1878 KAI REALTY LLCThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
Building class
K2 – Store building (subtype K2)The Department of Finance’s category for what kind of building this is.
Land use
Commercial & officeCity Planning’s broad category of how the lot is used.
Year built
1910Often an estimate for older buildings.
Floors
2
Units
0 residential / 1 totalResidential units are apartments; total includes stores and offices.
Buildings on lot
1
Lot size
2,000 sq ft (25 ft × 80 ft)
Building floor area
2,920 sq ft (incl. 2,920 sq ft commercial)
Zoning
R8A, C1-5The 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)
1.46 built / 6.02 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).
Identifiers
BBL 1016310038 (Borough 1, Block 1631, Lot 38) · BIN 1051927BBL 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 2026-11-04; 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)
$376,000The 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
$169,200The portion of market value that taxes are calculated on (capped by law for small homes).
Taxable value (final)
$154,710Assessed value minus any exemptions.
Tax class
Tax class 4 – commercial / industrial
Tax yearRollMarket valueAssessed valueTax class
2027Final$376,000$169,2004
2026Final$368,000$165,6004
2025Final$327,000$147,1504

Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-04

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
2021-08-05DEED$2,525,0001878 Realty Llc1878 Kai Realty Llc2021081601737001
2019-08-12DEED$2,100,000Michael Sunog, As Trustee; Randel, Rebecca L.; The Helen Stevens Management Trust; Ronald Sunog, As Trustee; Thomas Sunog, As Trustee; Randel, Sara N.; Deed Of Trust Established By Ernest Sunog; Helen Altheim Stevens , As Trustee1878 Realty Llc2019081600335001
2018-01-30DEED$0 / not statedStevens J. Kasselman; Solomon Altheim Living TrustHelen Altheim Stevens Management Trust; Randel, Rebecca L; Randel, Sara N; Helen Altheim Stevens2018022001026001
2018-01-13DEED$0 / not statedEstate Of Solomon Altheim; Helen StevensSolomon Altheim Irrevocable Trust; Stevens J. Kasselman2018013000757001
2006-09-25DEED$0 / not statedThe Ernest Sunog Revocable Trust; Sunog , ErnestThe Ernest Sunog Revocable Trust; Sunog (Trustee), Ernest2006110800331001
1973-09-05DEED$0 / not statedEsrim Realty CorpAlthern & Sunog Rltydba; Altheim, Solomon; Sunog, ErnestFT_1440008525644

Source: ACRIS Real Property Master — city dataset updated 2026-10-08; data as of 2026-11-04; ACRIS Real Property Legals — city dataset updated 2026-10-08; data as of 2026-11-04; ACRIS Real Property Parties — city dataset updated 2026-10-08; data as of 2026-11-04

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 · 2022-11-19
M00734273-I1
DOB NOW
Alteration2022-05-12$69,250
Not open
Approved · 2022-11-19
M00734273-P1
DOB NOW
Alteration2022-11-18$69,250
Not open
Approved · 2022-11-21
M00734278-P1
DOB NOW
Alteration2022-11-18$23,000
Not open
LOC Issued · 2023-08-28
M00734278-I1
DOB NOW
Alteration2022-05-13$23,000
Not open
Approved · 2020-12-27
M00248288-P2
DOB NOW
Alteration2020-03-02$18,900
Not open
LOC Issued · 2020-12-27
M00248288-S1
DOB NOW
Alteration2020-01-08$18,000
Not open
Approved · 2020-12-27
M00248288-P1
DOB NOW
Alteration2019-12-27$21,600
Not open
LOC Issued · 2020-12-27
M00248288-I1
DOB NOW
Alteration2019-10-22$18,900
Not open
SIGNED OFF · 2020-06-12
123694564
BIS
A2 – Alteration with multiple work types (no change to use/occupancy)2019-10-22$91,200

Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-01; data as of 2026-11-04; DOB Job Application Filings (BIS) — city dataset updated 2026-10-30; data as of 2026-10-31

Work permits 7

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
2022-05-262023-05-26M00734278-I1
DOB NOW
Plumbing
FILE PLUMBING WORK IN-CONJUNCTION WITH BIS APPLICATION #: INSTALL COMMERCIAL COOKING EQUIPMENT & PLUMBING WORK AT THE EXISTING KITCHEN OF EATING
Signed-off
2022-05-242023-05-24M00734273-I1
DOB NOW
General Construction
INTERIOR RENOVATION EXISTING STORE WITH PARTITION AND MECHANICAL WORK AT 1ST FLOOR. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
Permit Issued
2022-05-242023-05-24M00734273-I1
DOB NOW
Mechanical Systems
INTERIOR RENOVATION EXISTING STORE WITH PARTITION AND MECHANICAL WORK AT 1ST FLOOR. NO CHANGE IN USE, EGRESS OR OCCUPANCY.
Permit Issued
2020-11-122021-01-07M00248288-S1
DOB NOW
Mechanical Systems
INSTALL SPLIT AC UNITS IN EXISTING APTS AND OFFICE SPACE AS PER PLAN.
Signed-off
2020-01-092021-01-07123694564
BIS
Equipment work / Other / general constructionISSUED (renewal)
2019-12-162020-05-10M00248288-I1
DOB NOW
Plumbing
JOB FILED FOR INTERIOR RENOVATION OF EX. TWO APTS REPLACE EXISTING PLUMBING FIXTURES,ADDING WASHING MACHINE AS PER PLAN. NO CHANGE OF USE, EGRESS OR OCCUPANCY.
Signed-off
2019-10-312020-01-07123694564
BIS
Equipment work / Other / general constructionISSUED (initial)

Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-02; data as of 2026-11-04; DOB Permit Issuance (BIS) — city dataset updated 2026-10-31; data as of 2026-10-31

DOB violations 0 active of 0

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).

No records found in this dataset for this lot.

Source: DOB Violations — city dataset updated 2026-11-02; data as of 2026-11-04

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 2026-11-04

OATH tickets (all agencies) 0 unpaid of 41

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 #
No balance due
PAID IN FULL
2025-11-28Dos - Enforcement AgentsDIRTY SIDEWALK1878 KAI REALTY LLC$50 / $50 / $0046992843J
No balance due
HEARING COMPLETED · IN VIOLATION
2025-11-12Dos - Enforcement AgentsFAIL TO CLEAN 18 INCH INTO STREET COMM MAN INDUSTRIAL MIXED USE 1STAB FISH MARKET AND FOOD$50 / $50 / $0049492427Z
No balance due
PAID IN FULL
2025-11-04Sanitation OthersUNCOVERED RECEPTACLES 1ST OCCURRENCEAB FISH MARKET$50 / $50 / $0046992789H
No balance due
PAID IN FULL
2025-01-17Sanitation OthersFAILURE TO CLEAN 18 INCHES INTO STREET1878 KAI REALTY LLC$50 / $50 / $0046991819P
No balance due
PAID IN FULL
2024-11-27Sanitation OthersFAILURE TO CLEAN 18 INCHES INTO STREET1878 KAI REALTY LLC$50 / $50 / $0046991642Z
No balance due
PAID IN FULL
2024-07-02Sanitation OthersIMPROPER RECEPTACLE ALL BUSINESSES 1STAB FISH MARKET$50 / $50 / $0048522542M
No balance due
PAID IN FULL · IN VIOLATION
2024-01-13Sanitation OthersFAILURE TO CLEAN 18 INCHES INTO STREET1878 KAI REALTY LLC$50 / $100 / $-50048142552L
No balance due
HEARING COMPLETED · IN VIOLATION
2023-12-29Sanitation OthersFAILURE TO CLEAN 18 INCHES INTO STREET1878 KAI REALTY LLC$50 / $80 / $-30048142503P
No balance due
PAID IN FULL
2023-12-22Sanitation OthersFAILURE TO CLEAN 18 INCHES INTO STREET1878 KAI REALTY LLC$50 / $50 / $0048142484Z
No balance due Default
PAID IN FULL · DEFAULTED
2023-09-14Sanitation OthersIMPROPER RECEPTACLE FOOD RELATED BUSINESS 1STAB FISH MARKET$80 / $100 / $0046990162P
No balance due Default
PAID IN FULL · DEFAULTED
2023-05-23Fire Department Of NycRECORDKEEPINGAB FISH MARKET INC$1,000 / $1,031 / $0014065931L
No balance due
PAID IN FULL
2023-01-02Sanitation OthersFAILURE TO CLEAN 18 INCHES INTO STREET1878 KAI REALTY LLC$50 / $50 / $0047667894R

Showing 12 of 41 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 2026-11-04

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
1917
Last registered
2026-08-10
Registration valid until
2027-09-01 CurrentRegistrations must be renewed every year.
RoleNameCompanyBusiness city
ShareholderHongkai LinNew York, Ny
AgentHongkai LinNew York, Ny
OfficerHongkai LinNew York, Ny
Corporateowner1878 KAI REALTY LLCNew York, Ny
HeadofficerHongkai LinNew York, Ny
SitemanagerHongkai Lin

Source: HPD Multiple Dwelling Registrations — city dataset updated 2026-11-04; data as of 2026-11-04; HPD Registration Contacts — city dataset updated 2026-10-28; data as of 2026-11-04

HPD housing-code violations 0 open of 0

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.

No records found in this dataset for this lot.

Source: HPD Housing Maintenance Code Violations — city dataset updated 2026-11-02; data as of 2026-11-04

HPD complaints 1

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.

ReceivedStatusAptProblem(s)Outcome
2023-12-13CLOSE6GPlumbing – Water SupplyThe Department of Housing Preservation and Development was not able to gain access to inspect the following conditions. The complaint has been closed. If the condition still exists, please file a new

Source: HPD Housing Maintenance Code Complaints and Problems — city dataset updated 2026-11-02; data as of 2026-11-04

311 requests (last 12 months) 3

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
2026-09-30DSNYGraffiti – GraffitiClosed2026-10-02
2026-07-12NYPDNoise - Residential – Banging/PoundingClosed2026-07-13
2026-03-22NYPDIllegal Parking – Double Parked Blocking TrafficClosed2026-03-22

Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-04; data as of 2026-11-04

Nearby properties

On 3 Ave

Same tax block (1631)

All properties on 3 Ave, Manhattan · All of Manhattan 10029 (East Harlem (South))

Open-item counts as of October 31, 2026; each section lists its own dataset date. Machine-readable: JSON API · Markdown · Plain text · API & MCP docs