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897 Knickerbocker Avenue, Brooklyn, NY 11207

BBL 3034370002 (Borough 3, Block 3437, Lot 2) · BIN 3079803 · Last updated:

Summary · as of October 31, 2026

897 Knickerbocker Avenue (Brooklyn, NY 11207; tax lot BBL 3034370002) is a 6-unit walk-up apartment building (building class C2: walk-up apartments, five or six families), built around 1910, on a 2,000 sq ft lot zoned R6. City tax records list the owner as TOWNHOUSE RENTAL V, L.L.C.; per ACRIS, a deed to this owner dated September 27, 2023 lists a price of $3,800,000. The Department of Finance's final market value for tax year 2027 is $1,208,000. 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. There were no 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
TOWNHOUSE RENTAL V, L.L.C.
Building class
C2 · Walk-up apartments, five or six families
Year built · units
1910 · 6 res.
Lot area · zoning
2,000 sq ft · R6
Market value (DOF)
$1,208,000 FY2027
Last priced deed
$3,800,000 · 2023-09-27
BBL
3034370002
BIN
3079803

How to cite: NYC Property Facts, “897 Knickerbocker Avenue, Brooklyn, NY 11207 (BBL 3034370002)”, data as of 2026-10-31, https://nycpropertyfacts.com/ny/brooklyn/897-knickerbocker-avenue-3034370002. 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)
TOWNHOUSE RENTAL V, L.L.C.The owner name on the city’s tax records. It can lag behind recent sales and is often an LLC.
Building class
C2 – Walk-up apartments, five or six familiesThe 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
1910Often an estimate for older buildings.
Floors
2
Units
6 residential / 6 totalResidential units are apartments; total includes stores and offices.
Buildings on lot
1
Lot size
2,000 sq ft (20 ft × 100 ft)
Building floor area
4,503 sq ft
Zoning
R6The zoning district sets what can be built and used here. Residential district.
Built vs. allowed density (FAR)
2.25 built / 2.43 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 3034370002 (Borough 3, Block 3437, Lot 2) · BIN 3079803BBL 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)
$1,208,000The 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
$543,600The portion of market value that taxes are calculated on (capped by law for small homes).
Taxable value (final)
$138,690Assessed value minus any exemptions.
Tax class
Tax class 2A – residential rental, 4–6 units
Tax yearRollMarket valueAssessed valueTax class
2027Final$1,208,000$543,6002A
2026Final$1,067,000$480,1502A
2025Final$1,001,000$450,4502A

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

Sales & deed history 5

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
2024-02-08DEED$0 / not stated
one deed covering 10 lots; price is for all of them
Townhouse Rental Ii, L.L.C.Townhouse Rental V, L.L.C.2024021200495002
2023-09-27DEED$3,800,000897 On LlcTownhouse Rental Ii, L.L.C.2023092800474001
2020-12-17DEED$810,000Bonner-Hope, Ernestine I; Bonner, Ernest Jr; Bonner-Watson, Deborah A; Bonner, Reginald H; Bonner, James A; Bonner, Alexander M; Bonner-Hope, Leila M897 On Llc2021010900083005
2010-04-06DEED$0 / not statedBonner, Ernestine; Grimes, Homer; Bonner, Ernest GBonner-Watson, Deborah A; Bonner, Reginald H; Bonner, James A; Bonner, Jr, Ernest G; Bonner-Hope, Leila M; Bonner, Alexander M; Ernestine, Bonner-Hope I2010052401081001
1968-10-04DEED$0 / not statedDamico Joseph; Damico RoseBonner Ernestine; Bonner Ernest GBK_6830028100637

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 14

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
Approved · 2023-07-28
B00481228-P2
DOB NOW
ALT-CO - New Building with Existing Elements to Remain2023-07-25$658,643
Not open
Approved · 2023-03-08
B00498428-P3
DOB NOW
Alteration2023-03-08$105,000
Not open
Approved · 2023-01-15
B00498428-P1
DOB NOW
Alteration2023-01-12$105,000
Not open
Approved · 2022-11-01
B00481228-P1
DOB NOW
ALT-CO - New Building with Existing Elements to Remain2022-10-04$554,880
Not open
LOC Issued · 2022-08-22
B00746404-I1
DOB NOW
Alteration2022-05-31$5,000
Not open
Approved · 2022-04-28
B00498437-P1
DOB NOW
Alteration2022-04-26$48,000
Not open
LOC Issued · 2022-12-29
B00498439-I1
DOB NOW
Alteration2022-01-31$69,000
Not open
LOC Issued · 2022-12-29
B00498437-I1
DOB NOW
Alteration2022-01-31$48,000
Not open
LOC Issued · 2023-07-28
B00481228-S1
DOB NOW
ALT-CO - New Building with Existing Elements to Remain2021-12-01$92,480
Not open
LOC Issued · 2023-07-28
B00481228-S2
DOB NOW
ALT-CO - New Building with Existing Elements to Remain2021-12-01$40,000
Not open
LOC Issued · 2022-12-29
B00498419-I1
DOB NOW
Alteration2021-10-06$1,000
Not open
LOC Issued · 2023-03-10
B00498428-I1
DOB NOW
Alteration2021-09-13$105,000
Not open
SIGNED OFF · 2022-12-22
340815899
BIS
A3 – Minor alteration (one type of work)2021-06-23—
Not open
CO Issued · 2023-09-05
B00481228-I1
DOB NOW
ALT-CO - New Building with Existing Elements to Remain2021-04-07$658,643

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 8

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
2022-05-312023-01-25B00746404-I1
DOB NOW
Sidewalk Shed
INSTALLATION OF A HEAVY DUTY SIDEWALK SHED AS PER PLANS DURING GENERAL CONSTRUCTION WORK. NO CHANGE IN USE, EGRESS OR OCCUPANCY. SIDEWALK SHED TO COMPLY WITH CH
Signed-off
2022-05-262022-11-05B00498437-I1
DOB NOW
Sprinklers
PROVIDE SPRINKLER SYSTEM THROUGHOUT THE ENLARGEMENT FOUR-STORY BUILDING.
Signed-off
2022-04-282023-01-30B00498439-I1
DOB NOW
Plumbing
PROVIDE PLUMBING SYSTEM THROUGHOUT THE ENLARGEMENT FOUR -STORY BUILDING.
Signed-off
2022-03-102023-01-21B00481228-S2
DOB NOW
Foundation
SUBSEQUENT FILING FOUNDATION WORK FOR VERTICAL ONE (1)-STORY ENLARGEMENT ON EXISTING THREE (3)-STORY BUILDING IN CONJUNCTION WITH ALT-CO JOB # B00481228
Signed-off
2022-02-182023-01-21B00481228-S1
DOB NOW
Structural
SUBSEQUENT FILING STRUCTURE WORK FOR VERTICAL ONE (1)-STORY ENLARGEMENT ON EXISTING THREE (3)-STORY BUILDING IN CONJUNCTION WITH ALT-CO JOB # B00481228
Signed-off
2022-02-102023-02-10B00498428-I1
DOB NOW
Mechanical Systems
PROPOSED MECHANICAL SYSTEM FOR THE ENLARGEMENT FOUR-STORY BUILDING.
Signed-off
2022-02-042023-02-04B00481228-I1
DOB NOW
General Construction
CONVERT EXISTING TWO (2) DWELLING UNITS TO SIX (6) DWELLING UNITS. PROPOSED NEW VERTICAL TWO (2)-STORY ENLARGEMENT ON EXISTING TWO (2)-STORY BUILDING. TOTAL FOU
Permit Issued
2021-12-142022-12-14B00498419-I1
DOB NOW
Construction Fence
INSTALL TEMPORARY CONSTRUCTION WOOD FENCE IN CONJUNCTION WITH MAJOR ALT 1 JOB# B00481228-I1
Signed-off

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
2022-03-10CLASS - 1A TIME OF INSPECTION OBSERVED EXCESSIVE DEBRIS IN REAR YARD AND CELLAR ENTRY DOOR AT EXP#1 HAS COMPILED WITH SOIL. COMPROMISED ENTRY INTO CELLAR., REPAIR AND/REPLACE; MAKE THE SITE SAFE.$312 / $312 / $039057831L
Resolved
Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED
2022-03-10CLASS - 1FAILURE TO SAFEGUARD ALL PERSONS AND PROPERTY AFFECTED BY CONSTRUCTION OPERATIONS. OBSERVED SHARED CHIMNEY AT ROOF LEVEL PARTY WALL OF 897 AND 895 KNICKERBOCKER AVE IS SEVERALLY DAMAGED WITH MISSING BRICK AND A$2,500 / $2,500 / $039057832N
Resolved
Hearing: IN VIOLATION · Certification: CERTIFICATE ACCEPTED
2022-03-10CLASS - 1FAILURE TO SAFEGUARD ALL PERSONS AND PROPERTY AFFECTED BY CONSTRUCTION OPERATIONS. OBSERVED AT SHARED PARTY WALL AT EXP #4 REAR BEDROOM 1ST FLOOR OF 895 KNICKERBOCKER AVE WALL IS PENETRATED LEAVING A 2" WHOLE W$2,500 / $2,500 / $039057830J

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

OATH tickets (all agencies) 0 unpaid of 10

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 Default
PAID IN FULL · DEFAULTED
2025-04-03Sanitation OthersFAIL TO RECYCLE ORGANIC WASTE 1-8 DWELLING UNITS 1STTOWNHOUSE RENTAL V L L C$25 / $25 / $0049034777K
No balance due Default
PAID IN FULL · DEFAULTED
2025-03-20Dos - Enforcement AgentsFAILURE TO PROPERLY PUT RECYCS OUT FOR COLLECTION 1TO8DWELLING UNITSTOWNHOUSE RENTAL V L L C$25 / $25 / $0049011537J
No balance due
PAID IN FULL · IN VIOLATION
2022-03-10Dept. Of BuildingsFAILURE TO MAINTAIN BUILDING IN CODE-COMPLIANT MANNER897 ON LLC$312 / $312 / $0039057831L
No balance due
PAID IN FULL · IN VIOLATION
2022-03-10Dept. Of BuildingsFAILURE TO SAFEGUARD ALL PERSONS AND PROP AFFECTED BY CONST OPERATIONS897 ON LLC$2,500 / $2,500 / $0039057830J
No balance due
PAID IN FULL · IN VIOLATION
2022-03-10Dept. Of BuildingsFAILURE TO SAFEGUARD ALL PERSONS AND PROP AFFECTED BY CONST OPERATIONS897 ON LLC$2,500 / $2,500 / $0039057832N
No balance due Default
PAID IN FULL · DEFAULTED
2022-01-05Pcs - DohmhFAIL TO ELIMINATE RODENT INFESTATION SHOWN BY ACTIVE RODENT SIGNS 1ST897 ON LLC$600 / $600 / $00802151873
No balance due
PAID IN FULL
2011-05-21Sanitation OthersMAINTAINING RECEPTACLESBONNER JR$100 / $100 / —0174183076
No balance due
PAID IN FULL
2010-07-20Sanitation OthersMAINTAINING RECEPTACLESBONNER$100 / $100 / —0173332620
No balance due
PAID IN FULL
2008-10-29Sanitation PoliceMAINTAINING RECEPTACLESBONNER$100 / $100 / —042420416X
No balance due
PAID IN FULL
2004-05-17$100 / $100 / —0142647387

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

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
321490
Last registered
2026-06-30
Registration valid until
2027-09-01 CurrentRegistrations must be renewed every year.
RoleNameCompanyBusiness city
AgentPatricia SotiryadisFREESTONE PROPERTY GROUP LLCNew York, Ny
SitemanagerPatricia Sotiryadis
CorporateownerTOWNHOUSE RENTAL V, LLCNew York, Ny
HeadofficerGlen BrownNew York, Ny

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 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 2026-11-02

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
2023-12-29CLOSE1Door/Window – Window FrameThe 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 2026-11-02

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 Knickerbocker Ave

Same tax block (3437)

All properties on Knickerbocker Ave, Brooklyn · All of Brooklyn 11207 (East New York-New Lots)

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