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Underhill Avenue, Bronx, NY 10473

BBL 2034990123 (Borough 2, Block 3499, Lot 123) · BIN 2130647, 2130648 · Last updated:

Also recorded in city data as: 440 Underhill Ave · 440garage Underhill Ave · 440gar Underhill Ave

Summary · as of October 31, 2026

Underhill Avenue (Bronx, NY 10473; tax lot BBL 2034990123) is a 3-unit walk-up apartment building (building class C0: three-family walk-up), built around 2021, on a 2,500 sq ft lot zoned R5. City tax records list the owner as NI, YUN; per ACRIS, a deed to this owner dated February 15, 2023 lists a price of $1,211,718. The Department of Finance's final market value for tax year 2027 is $972,000. As of October 31, 2026, NYC Open Data shows no open DOB jobs, active DOB/ECB violations, open HPD violations or unpaid OATH tickets for this lot. (Source: NYC Open Data — DOB, HPD, OATH, DOF, DCP and ACRIS datasets — compiled by NYC Property Facts.)

Owner of record
NI, YUN
Building class
C0 · Three-family walk-up
Year built · units
2021 · 3 res.
Lot area · zoning
2,500 sq ft · R5
Market value (DOF)
$972,000 FY2027
Last priced deed
$1,211,718 · 2023-02-15
BBL
2034990123
BIN
2130647, 2130648

How to cite: NYC Property Facts, “Underhill Avenue, Bronx, NY 10473 (BBL 2034990123)”, data as of 2026-10-31, https://nycpropertyfacts.com/ny/bronx/underhill-avenue-2034990123. 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)
NI, YUNThe owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
Building class
C0 – Three-family walk-upThe 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
2021Often an estimate for older buildings. Major alteration recorded: 2020.
Floors
3
Units
3 residential / 3 totalResidential units are apartments; total includes stores and offices.
Buildings on lot
2
Lot size
2,500 sq ft (25 ft × 100 ft)
Building floor area
3,060 sq ft
Zoning
R5The zoning district sets what can be built and used here. Residential district.
Built vs. allowed density (FAR)
1.22 built / 1.50 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 2034990123 (Borough 2, Block 3499, Lot 123) · BIN 2130647, 2130648BBL 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 2026-11-02; 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)
$972,000The 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
$58,320The portion of market value that taxes are calculated on (capped by law for small homes).
Taxable value (final)
$47,100Assessed value minus any exemptions.
Tax class
Tax class 1 – 1–3 family homes (and some small mixed-use / vacant lots)
Tax yearRollMarket valueAssessed valueTax class
2027Final$972,000$58,3201
2026Final$807,000$48,4201
2025Final$774,000$46,4401

Source: DOF Property Valuation and Assessment Data — city dataset updated 2026-09-14; data as of 2026-11-02

Sales & deed history 1

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
2023-02-15DEED$1,211,718Underhill Group LlcNi, Yun; Xiao, Mei Can2023022200736001

Source: ACRIS Real Property Master — city dataset updated 2026-10-08; data as of 2026-11-02; ACRIS Real Property Legals — city dataset updated 2026-10-08; data as of 2026-11-02; ACRIS Real Property Parties — city dataset updated 2026-10-08; data as of 2026-11-02

DOB job filings 0 open of 10

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
Not open
LOC Issued · 2022-11-17
X08016162-I1
DOB NOW
Alteration2022-10-17$1,000
Not open
Approved · 2022-09-02
X00202101-P1
DOB NOW
Alteration2022-08-18$104,323
Not open
Approved · 2021-10-18
X00196495-P1
DOB NOW
Alteration2021-09-09$23,000
Not open
LOC Issued · 2022-08-05
X00508638-I1
DOB NOW
Alteration2021-04-22$500
Not open
LOC Issued · 2022-09-07
X00202101-I1
DOB NOW
Alteration2019-11-26$104,323
Not open
LOC Issued · 2022-07-20
X00252960-I1
DOB NOW
Alteration2019-11-08$500
Not open
LOC Issued · 2022-07-13
X00252589-I1
DOB NOW
Alteration2019-10-28$1,000
Not open
SIGNED OFF · 2023-03-03
220715741
BIS
NB – New building2019-09-24—
Not open
LOC Issued · 2022-08-05
X00225920-I1
DOB NOW
Alteration2019-09-12$6,900
Not open
LOC Issued · 2022-07-27
X00196495-I1
DOB NOW
Alteration2019-09-12$23,000

Source: DOB NOW: Build – Job Application Filings — city dataset updated 2026-11-01; data as of 2026-11-02; DOB Job Application Filings (BIS) — city dataset updated 2026-10-30; data as of 2026-10-31

Work permits 5

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
2022-10-262023-10-01X08016162-I1
DOB NOW
Plumbing
HEREWITH FILED PLUMBING APPLICATION TO INSTALL STORM DRAIN PIPING FOR GARAGE TO EXISTING DRYWELL FILED UNDER NB(HOUSE)#220710915, THIS APPLICATION FILED UNDER A
Signed-off
2022-07-272022-09-18X00508638-I1
DOB NOW
Curb Cut
PROPOSE A NEW 8'-0 CURB CUT FILED IN CONJUNCTION WITH NB # 220710915
Signed-off
2022-07-192022-09-18X00252960-I1
DOB NOW
Construction Fence
FILED HEREWITH PLANS AND APPLICATION FOR A NEW TEMPORARY PLYWOOD CONSTRUCTION FENCE FILED IN CONJUNCTION WITH NB #220710915 AND NB #220710906.
Signed-off
2022-03-022022-10-04X00252589-I1
DOB NOW
Sprinklers
HEREWITH FILING FOR HYDRAULICALLY CALCULATED SPRINKLER SYSTEM THROUGH-OUT BUILDING. FILED IN CONJUNCTION WITH NEW BUILDING, BIS # 220710915.
Signed-off
2021-04-092022-04-09220715741
BIS
New buildingISSUED (initial)

Source: DOB NOW: Build – Approved Permits — city dataset updated 2026-11-02; data as of 2026-11-02; 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 2026-11-02

ECB violations (DOB) 0 active of 3

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.

StatusIssuedSeverityWhat it was forPenalty / paid / balanceECB #
Resolved
Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED
2021-05-27CLASS - 2PEDESTRIAN PROTECTION DOES NOT MEET CODE SPECIFICATIONS.AT TIME OF INSPECTION OF ACTIVE PERMIT 3 STORY NEW BUILDING OBSERVED NOTE:OBSTRUCTION OF STREETS AND SIDEWALK WITH CONSTRUCTION MATERIAL WITHOUT DEPARTMEN$2,400 / $0 / $2,40035547403L
Resolved
Hearing: DISMISSED · Certification: CERTIFICATE ACCEPTED
2021-05-27CLASS - 1FAILURE TO PROVIDE PROTECTION AT SIDES OF EXCAVATION AT TIME OF INSPECTION OF ACTIVE PERMIT 3 STORY NEW BUILDING OBSEEVED EXCAVATED PIT OVERFIVE FEET IN DEPTH WHERE WORKER PLACED AND STANDING ON TOP OF THE DRY$0 / $0 / $035547404N
Resolved
Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED
2021-05-27CLASS - 1FAILURE TO SAFEGUARD ALL PERSONS AND PROPERTY AFFECTED BY CONSTRUCTIONOPERATIONS.AT TIME OF INSPECTION OF ACTIVE PERMIT 3 STORY NEW BUILDINGOBSERVED JOBSITE FENCE MISSING/HOT MATERIAL AT EXPOSURE#3 WHERE EXCAVA$2,500 / $0 / $2,50035547402J

Source: DOB ECB Violations — city dataset updated 2026-10-31; data as of 2026-11-02

OATH tickets (all agencies) 0 unpaid of 2

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
2026-01-12Dos - Enforcement AgentsIMPROPER RECEPTACLE FAILURE TO CONTAINERIZE - RESIDENTIAL 1STNI YUN$50 / $50 / $0049598996Y
No balance due
PAID IN FULL
2025-11-06Sanitation OthersIMPROPER RECEPTACLE FAILURE TO CONTAINERIZE - RESIDENTIAL 1STNI YUN$50 / $50 / $0049455537R

Source: OATH Hearings Division Case Status — city dataset updated 2026-11-01; data as of 2026-11-01

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
1020681
Last registered
2026-02-26
Registration valid until
2026-09-01 ExpiredRegistrations must be renewed every year.
RoleNameCompanyBusiness city
SitemanagerBeebbe Doan
ShareholderMei Can Xiao
AgentBeebbe Doan
HeadofficerYun Ni

Source: HPD Multiple Dwelling Registrations — city dataset updated 2026-10-28; data as of 2026-11-02; HPD Registration Contacts — city dataset updated 2026-10-28; data as of 2026-11-02

HPD housing-code violations 0 open of 1

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 · 2026-06-01
A2026-05-11(A) § HMC:FILE ANNUAL BEDBUG REPORT IN ACCORDANCE WITH HPD RULE AS DESCRIBED ON THE BACK OF THIS NOTICE OF VIOLATION OR AS DESCRIBED ON HPDS WEBSITE, WWW.NYC.GOV\HPD, SEARCH BED BUGS.

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

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 2026-11-02; data as of 2026-11-02

311 requests (last 12 months) 0

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.

No records found in this dataset for this lot.

Source: 311 Service Requests from 2020 to Present — city dataset updated 2026-11-02; data as of 2026-11-02

Nearby properties

On Underhill Ave

Same tax block (3499)

All properties on Underhill Ave, Bronx · All of Bronx 10473 (Soundview-Clason Point)

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