NY Property Records

340 21 Street
Brooklyn · Kings County · 11215

02 · Walk-Up AptsLast sold Dec 1996 · click to view deed ↗

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Owner of record

Owner340 Realty LLC

Assessment · 2025 roll

Land assessed$8,550

Total assessed$874,350

Est. annual tax$20,541 (2027, excl. special districts)

Building

StyleOver Six Families Without Stores

Year built1931

Living area5,884 sq ft

Lot

Size0.06 acres (GIS)

Frontage × depth25 × 100 ft

Lot sq ft2,504

Zoning

DistrictR6B

FAR2.35 built · 2.0 max residential · 2.0 max facility

Zoning map16d

Recorded documents · 13

TERMINATION OF ASSIGN OF L&R Feb 14, 2006

party one 340 Realty L.L.C.

party two Greenpoint Mortgage Corp

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SATISFACTION OF MORTGAGE Feb 14, 2006

mortgager/borrower 340 Realty L.L.C.

mortgagee/lender Greenpoint Mortgage Corp

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ASSIGNMENT, MORTGAGE Aug 25, 1999

assignor/old lender 340 Realty LLC

assignee/new lender Greenpoint Mortgagecorp

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Show all 13

SATISFACTION OF MORTGAGE Aug 25, 1999

mortgager/borrower 340 Realty LLC

mortgagee/lender Theresa Olynik

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MORTGAGE $200,000 Aug 25, 1999

mortgagor/borrower 340 Realty L L C

mortgagee/lender Greenpoint Mortgagecorp

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SATISFACTION OF MORTGAGE Jul 1, 1997

mortgager/borrower Sweethouse Enterprises Inc

mortgagee/lender Niedbalski, Raymond; Penny, Jenney Niedbalski

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DEED Feb 5, 1997

grantor/seller Olynik, Theresa

grantee/buyer 340 Realty LLC

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MORTGAGE $200,000 Feb 5, 1997

mortgagor/borrower 340 Realty LLC

mortgagee/lender Olynik, Theresa

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DEED Apr 23, 1993

grantor/seller Sweethouse Enterprises I

grantee/buyer Olynik, Theresa

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DEED Jan 25, 1982

grantor/seller Niedbalski, Raymond; Penny, Jenny Niedbalski

grantee/buyer Sweethouse Enter Inc.

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MORTGAGE $25,000 Jan 25, 1982

mortgagor/borrower Sweethouse Ent, Inc.

mortgagee/lender Niedbalski, Raymond; Penny, Jenny Niedbalski

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DEED Jan 21, 1975

grantor/seller Niedbalsk Anna Decd; Niedbalski Raymond Indiv & Sole Exec +1

grantee/buyer Niedbalski Raymond; Penny Jenny N

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DEED Nov 8, 1974

grantor/seller Boyle Frances Indiv & Admin Of; Zachorowski Dorothy +3

grantee/buyer Niedbalski Anna; Niedbalski Raymond +1

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DOB violations — total 12 · open 11 · dismissed 1

Gas Piping - LL152 Dismissed Sep 18, 2025

Boiler Active Jun 20, 2023

VIOLATION ISSUED-FAILURE TO FILE 2018 EXTERNAL LOW PRESSURE INSPECTION

Boiler Active Nov 8, 2019

VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2017 INSPECTION REPORT

Show all 12

Boiler Active Oct 1, 2015

VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2014 INSPECTION REPORT

Boiler Active Mar 3, 2015

VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2013 INSPECTION REPORT

Boiler Active Mar 1, 2013

VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2011 INSPECTION REPORT

Boiler Active Dec 13, 2011

VIOLATION ISSUED FOR FAILURE TO FILE ANNUAL BOILER 2010 INSPECTION REPORT

Boiler Active Dec 31, 2009

Boiler Active Jan 1, 2009

Boiler Active Jan 6, 2006

Boiler Active Jan 31, 2005

Boiler Active Feb 13, 2004

DOB complaints — total 4 · open 0 · closed 4

Boiler – defective/non-operative/no permit Closed May 12, 2025

Complaint 3A13308

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Illegal commercial/manufacturing use in residence Closed Feb 13, 2022

Complaint 3831595

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Category 54 Closed Aug 21, 2008

Complaint 3277013

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Show all 4

Building shaking/vibrating/structural stability Closed May 7, 2007

Complaint 3224462

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HPD violations — total 58 · open 13 · closed 45

A · Non-hazardous Open May 1, 2026

(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.G

I · Order to correct Open Nov 19, 2025

§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PEN

C · Immediately hazardous Closed Mar 6, 2025

§ 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE HI

Show all 58

C · Immediately hazardous Closed Mar 6, 2025

§ 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE HI

B · Hazardous Open Mar 6, 2025

§ 27-2045 ADM CODE REPAIR OR REPLACE THE SMOKE DETECTOR DEFECTIVE IN THE ENTIRE APARTMENT LOCATED AT APT 3, 2nd STORY

B · Hazardous Open Mar 6, 2025

§ 27-2046.1, 2046.2 HMC: PROVIDE AN APPROVED AND OPERATIONAL CARBON MONOXIDE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH APPLICABLE LAW AND RULES. IN THE ENT

B · Hazardous Open Mar 6, 2025

§ 27-2045 ADM CODE REPAIR OR REPLACE THE SMOKE DETECTOR DEFECTIVE IN THE ENTIRE APARTMENT LOCATED AT APT 8, 4th STORY

C · Immediately hazardous Closed Mar 6, 2025

§ 27-2005, 27-2007, 27-2041.1 HMC, §238, § 309; § 107 (2) ( C) MDL AND 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE HI

B · Hazardous Open Mar 6, 2025

§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE STUCCO AT SOUTH WALL OF THE BUILDING , 1st STORY

A · Non-hazardous Closed Apr 3, 2024

(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.G

I · Order to correct Closed Nov 20, 2023

§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PEN

A · Non-hazardous Closed Mar 20, 2023

(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.G

I · Order to correct Closed Nov 9, 2022

§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PEN

A · Non-hazardous Closed Feb 22, 2022

(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.G

I · Order to correct Closed Feb 22, 2022

§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PEN

A · Non-hazardous Closed Apr 6, 2021

(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.G

A · Non-hazardous Closed Feb 26, 2021

§ 27-2005 HMC: POST, IN A FORM APPROVED BY THE COMMISSIONER, AND MAINTAIN A NOTICE IN A COMMON AREA OF THE BUILDING REGARDING THE PROCEDURES THAT SHOULD BE FOLL

A · Non-hazardous Closed Feb 26, 2021

§ 26-1103 ADMIN. CODE: POST AND MAINTAIN A PROPER NOTICE ON WALL OF THE ENTRANCE STORY IN ENGLISH AND SPANISH ON THE AVAILABILITY OF THE AGENCYS HOUSING INFORM

I · Order to correct Closed Oct 12, 2018

§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PEN

I · Order to correct Closed Nov 2, 2016

§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PEN

I · Order to correct Closed Oct 6, 2015

§27-2107 ADM CODE OWNER FAILED TO FILE A VALID REGISTRATION STATEMENT WITH THE DEPARTMENT AS REQUIRED BY ADM CODE §27-2097 AND IS THEREFORE SUBJECT TO CIVIL PEN

B · Hazardous Closed Jun 10, 2015

§ 27-2010, 2011, 2012 ADM CODE REMOVE THE ACCUMULATION OF REFUSE AND/OR RUBBISH AND MAINTAIN IN A CLEAN CONDITION THE FRONT COURT YARD OF BUILDING

B · Hazardous Closed Apr 16, 2014

§ 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 SUNR

B · Hazardous Closed Jun 12, 2008

§ 27-2005 ADM CODE & 309 M/D LAW ABATE THE NUISANCE CONSISTING OF A/C UNITS INSTALLED WITH NO BRACKETS ALL STORIES AT FRONT BUILDING

C · Immediately hazardous Closed Jun 12, 2008

§ 27-2033 ADM CODE POST NOTICE, IN FORM APPROVED BY THE DEPARTMENT, STATING THE NAME AND LOCATION OF THE PERSON DESIGNATED BY THE OWNER TO HAVE KEY TO BUILDINGS

B · Hazardous Closed Jun 12, 2008

§ 27-2005, 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF CONSTRUCTION MATERIALS AT PUBLIC HALL 1ST STORY

B · Hazardous Closed Jun 12, 2008

§ 27-2005 ADM CODE REPLACE WITH NEW THE MISSING HANDRAIL AT STAIR TO CELLAR AT FRONT YARD

B · Hazardous Closed Jun 12, 2008

§ 27-2005 ADM CODE REPLACE WITH NEW THE BROKEN OR DEFECTIVE CONCRETE TREAD 5FT FROM BOTTOM AT STAIR TO CELLAR AT FRONT YARD

B · Hazardous Closed Jun 12, 2008

§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE BRICK RISER 5FT FROM BOTTOM AT STAIR TO CELLAR AT FRONT YARD

B · Hazardous Closed Jun 12, 2008

§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE RATAIN BRICK NORTH WALL AT STAIR TO CELLAR AT FRONT YARD

B · Hazardous Closed Jun 12, 2008

§ 27-2005 ADM CODE REPLACE WITH NEW THE MISSING KNOB AT DOOR VESTIBULE TO PUBLIC HALL 1ST STORY

B · Hazardous Closed May 4, 2007

§ 27-2005, 27-2007, 27-2041.1 HMC: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE .. IN THE ENTRANCE LOCATED AT APT 8, 4th STORY, 1st APA

B · Hazardous Open May 4, 2007

§ 27-2005 ADM CODE PROPERLY REPAIR THE BROKEN OR DEFECTIVE DOOR LOCK IN THE ENTRANCE LOCATED AT APT 8, 4th STORY, 1st APARTMENT FROM EAST AT SOUTH

A · Non-hazardous Open May 4, 2007

§ 300 M/D LAW FILE PLANS AND APPLICATION AND LEGALIZE THE FOLLOWING ALTERATION OR RESTORE TO THE LEGAL CONDITION EXISTING PRIOR TO THE MAKING OF SAID ALTERATION

A · Non-hazardous Closed May 4, 2007

§ 300 M/D LAW FILE PLANS AND APPLICATION AND LEGALIZE THE FOLLOWING ALTERATION OR RESTORE TO THE LEGAL CONDITION EXISTING PRIOR TO THE MAKING OF SAID ALTERATION

A · Non-hazardous Closed May 4, 2007

§ 300 M/D LAW FILE PLANS AND APPLICATION AND LEGALIZE THE FOLLOWING ALTERATION OR RESTORE TO THE LEGAL CONDITION EXISTING PRIOR TO THE MAKING OF SAID ALTERATION

B · Hazardous Open May 4, 2007

§ 27-2005 ADM CODE PROPERLY REPAIR THE BROKEN OR DEFECTIVE PAVING AT REAR YARD

C · Immediately hazardous Closed May 4, 2007

§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE CHEEK WALLS &TREADS ENTRANCE TO CELLAR FROM REAR YARD

A · Non-hazardous Open May 4, 2007

§ 27-2005 ADM CODE PAINT METAL IN ACCORDANCE WITH DEPT. REGULATION ROOF CORNICE AT FRONT OF BUILDING

B · Hazardous Closed May 4, 2007

§ 27-2005, 27-2007, 27-2041.1 HMC: REPLACE OR REPAIR THE SELF-CLOSING DOORS THAT IS MISSING OR DEFECTIVE DOOR TO BOILER ROOM IN CELLAR

B · Hazardous Closed May 4, 2007

§ 27-2037 ADM CODE PROVIDE ADEQUATE LIGHTING AT CELLAR THROUGHOUT

C · Immediately hazardous Closed Jul 20, 2005

§ 27-2070 ADM CODE PROVIDE AN ADEQUATE SUPPLY OF GAS TO THE FIXTURES GAS RANGE IN THE KITCHEN LOCATED AT APT 6, 3rd STORY, APARTMENT AT SOUTH

B · Hazardous Closed Jul 20, 2005

§ 27-2045 ADM CODE REPAIR OR REPLACE THE SMOKE DETECTOR DEFECTIVE IN THE ENTIRE APARTMENT LOCATED AT APT 6, 3rd STORY, APARTMENT AT SOUTH

B · Hazardous Closed Jul 20, 2005

§ 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 SUNR

A · Non-hazardous Closed Jul 20, 2005

§ 27-2005 ADM CODE PAINT METAL IN ACCORDANCE WITH DEPT. REGULATION CEILING IN THE 3rd ROOM FROM EAST LOCATED AT APT 6, 3rd STORY, APARTMENT AT SOUTH

B · Hazardous Open Jul 20, 2005

§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE WOOD FLOOR ALL ROOMS IN THE ENTIRE APARTMENT LOCATED AT APT 6, 3rd STORY, APART

B · Hazardous Closed Jul 20, 2005

§ 27-2005 ADM CODE FIRE ESCAPE DEFECTIVE. ADJUST THE DROPLADDER SO THAT IT WILL SLIDE EASILY IN THE GUIDE RODS REAR AT FIRE ESCAPE

B · Hazardous Closed Jul 20, 2005

§ 27-2005, 2007 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF HOUSE HOLD ARTICLES AT PUBLIC HALL, 4th STORY

B · Hazardous Closed Sep 28, 2003

§ 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 SUNR

B · Hazardous Closed May 29, 2002

§ 27-2005 ADM CODE REPAIR THE BROKEN OR DEFECTIVE PLASTERED SURFACES AND PAINT IN A UNIFORM COLOR CEILING IN THE BATHROOM LOCATED AT APT 3, 2nd STORY, 2nd APART

A · Non-hazardous Closed May 29, 2002

§ 300 M/D LAW FILE PLANS AND APPLICATION AND LEGALIZE THE FOLLOWING ALTERATION OR RESTORE TO THE LEGAL CONDITION EXISTING PRIOR TO THE MAKING OF SAID ALTERATION

B · Hazardous Open May 29, 2002

§ 27-2005 ADM CODE PROPERLY REPAIR WITH SIMILAR MATERIAL THE BROKEN OR DEFECTIVE METAL CEILING IN THE KITCHEN LOCATED AT APT 3, 2nd STORY, 2nd APARTMENT FROM EA

B · Hazardous Closed Jul 24, 1990

§ 27-2045, 2046 ADM CODE PROVIDE AN APPROVED AND OPERATIONAL SMOKE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH DEPARTMENT OF BUILDINGS RULES AND REGULATIONS

B · Hazardous Open Nov 25, 1988

§ 27-2005 ADM CODE PROPERLY REPAIR THE BROKEN OR DEFECTIVE CEILING SOUTHWEST CELLAR.

B · Hazardous Closed Aug 21, 1987

D26-19.07 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 SUNR

B · Hazardous Closed Jun 27, 1984

D26-10.01, 10.05 ADM CODE AND DEPT. RULES AND REGULATIONS. REMOVE THE ENCUMBRANCE OBSTRUCTING EGRESS FROM FIRE ESCAPES 2 AND 3 STY BALCONIES REAR.

A · Non-hazardous Closed Jun 27, 1984

D26-20.08,20.09 ADM CODE FILE CERTIFICATION OF SATISFACTORY INSTALLATION OF SMOKE DETECTING DEVICE IN ACCORDANCE WITH H.P.D. RULES AND REGULATIONS.

B · Hazardous Closed Jun 27, 1984

D26-10.01, 10.05 ADM CODE REMOVE ALL ENCUMBRANCES CONSISTING OF HOUSEHOLD ITEMS 4 STY PUB HALL.

Deed & identifiers

SBL3008980032

SWIS610100

Parcel ID6101003008980032

Who owns 340 21 Street?

340 21 Street, Brooklyn is owned by 340 Realty LLC per the 2025 NYS assessment roll.

Nearby on 21 Street

339a 21 Street · 341 21 Street · 339 21 Street · 341a 21 Street · 342 21 Street · 338 21 Street · 337 21 Street · 343 21 Street · 344 21 Street · 336 21 Street

Public record, NYS tax roll 2025. Values are the assessor's, not an appraisal. Provided for informational purposes only — accuracy and completeness are not warranted or guaranteed; verify against official sources before relying on it. Disclaimer · Request redaction

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