NY Property Records
638 Humboldt Street
638 Humboldt Street
Brooklyn · Kings County · 11222
02 · Walk-Up AptsSold $560,000 · Feb 2026 ↗
Owner of record
OwnerKostrzewski Revocable Trust
Assessment · 2025 roll
Land assessed$5,850
Total assessed$756,900
Est. annual tax$16,569 (2027, excl. special districts)
Building
StyleFive to Six Families
Year built1931
Living area4,190 sq ft
Lot
Size0.06 acres (GIS)
Frontage × depth24 × 100 ft
Lot sq ft2,450
Zoning
DistrictR6B
FAR1.71 built · 2.0 max residential · 2.0 max facility
Zoning map13a
Recorded documents · 2
DEED
$560,000
Mar 3, 2026
grantor/seller Sylvia Druzynski; The Kostrzewski Revocable Trust
grantee/buyer 638 Humboldt Street LLC
View on ACRIS ↗
DEED
Dec 18, 2002
grantor/seller Kostrzewski, Stanley
grantee/buyer Kostrzewski Revocable Trust
View on ACRIS ↗DOB violations — total 2 · open 2 · dismissed 0
Boiler
Active
Nov 14, 2025
VIOLATION ISSUED-FAILURE TO FILE 2024 EXTERNAL LOW PRESSURE INSPECTION
BIS ↗Boiler
Active
Dec 31, 2009
BIS ↗DOB complaints — total 1 · open 0 · closed 1
HPD violations — total 21 · open 9 · closed 12
A · Non-hazardous
Open
May 5, 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
HPD ↗
C · Immediately hazardous
Open
Apr 16, 2026
§ 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
HPD ↗
B · Hazardous
Open
Dec 26, 2025
§ 27-2045(B)(1)(B) HMC, § 12-06, § 12-07, § 12-09 RCNY REPAIR, REPLACE OR PROVIDE AN APPROVED AND OPERATIONAL CARBON MONOXIDE DETECTING DEVICE, INSTALLED IN ACC
HPD ↗Show all 21
B · Hazardous
Open
Dec 26, 2025
§ 27-2045(B)(1)(A) HMC, § 12-01, § 12-03 RCNY REPAIR, REPLACE OR PROVIDE AN APPROVED AND OPERATIONAL SMOKE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH DEPART
HPD ↗
C · Immediately hazardous
Open
Dec 26, 2025
§ 27-2044, 2041.1 HMC: §238 MDL and 28 RCNY §25-171: REPLACE OR REPAIR THE SELF-CLOSING THE DOORS THAT IS MISSING OR DEFECTIVE HINGES AT DOOR IN THE ENTRANCE LO
HPD ↗
C · Immediately hazardous
Closed
Dec 26, 2025
§ 27-2005, 2007 ADM CODE REMOVE DEVICE PREVENTING DOOR FROM BEING SELF-CLOSING HOOK AND EYE INSTALLED AT BUILDING ENTRANCE DOOR , 1st STORY
HPD ↗
A · Non-hazardous
Open
Dec 26, 2025
§ 27-2013 ADM CODE PAINT WITH LIGHT COLORED PAINT TO THE SATISFACTION OF THIS DEPARTMENT ALL PEELING PAINT SURFACES IN THE BATHROOM , THE KITCHEN LOCATED AT APT
HPD ↗
B · Hazardous
Open
Dec 20, 2025
§ 27-2045(B)(1)(A) HMC, § 12-01, § 12-03 RCNY REPAIR, REPLACE OR PROVIDE AN APPROVED AND OPERATIONAL SMOKE DETECTING DEVICE, INSTALLED IN ACCORDANCE WITH DEPART
HPD ↗
C · Immediately hazardous
Closed
Dec 20, 2025
§ 27-2005, 2007 ADM CODE REMOVE DEVICE PREVENTING DOOR FROM BEING SELF-CLOSING HOOK AND EYE AT DOOR , 1st STORY
HPD ↗
C · Immediately hazardous
Closed
Dec 11, 2025
§ 27-2005, 2007 ADM CODE REMOVE DEVICE PREVENTING DOOR FROM BEING SELF-CLOSING HOOK AND EYE AT BUILDING FRONT ENTRANCE DOOR , 1st STORY
HPD ↗
A · Non-hazardous
Open
Dec 11, 2025
§ 329, M/D LAW AND DEPT. RULES AND REGS. PROVIDE A COMPLETED CERTIFICATE OF INSPECTION VISITS IN A PROPER FRAME AT OR NEAR MAILBOXES, BOTTOM EDGE OF FRAME BETWE
HPD ↗
I · Order to correct
Open
Nov 20, 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
HPD ↗
A · Non-hazardous
Closed
Mar 23, 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
HPD ↗
I · Order to correct
Closed
Nov 10, 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
HPD ↗
A · Non-hazardous
Closed
Feb 25, 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
HPD ↗
I · Order to correct
Closed
Feb 25, 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
HPD ↗
A · Non-hazardous
Closed
Apr 9, 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
HPD ↗
I · Order to correct
Closed
Apr 9, 2021
§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
HPD ↗
I · Order to correct
Closed
Oct 30, 2019
§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
HPD ↗
I · Order to correct
Closed
Oct 18, 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
HPD ↗
I · Order to correct
Closed
Feb 23, 2015
SECTION27-2107 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 CIV
HPD ↗Deed & identifiers
SBL3026860059
SWIS610100
Parcel ID6101003026860059
Who owns 638 Humboldt Street?
638 Humboldt Street, Brooklyn is owned by Kostrzewski Revocable Trust per the 2025 NYS assessment roll. It last sold for $560,000 in Feb 2026.
Nearby on Humboldt 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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