NY Property Records
30 Diamond Street
30 Diamond Street
Brooklyn · Kings County · 11222
01 · 1–2 FamilySold $1,520,000 · Dec 2017 ↗
Owner of record
OwnerDiamond 30 LLC
Assessment · 2025 roll
Land assessed$13,380
Total assessed$88,020
Est. annual tax$5,699 (2027, excl. special districts)
Building
StyleMiscellaneous (City Type, Old, etc.)
Year built1901
Living area1,518 sq ft
Lot
Size0.04 acres (GIS)
Frontage × depth25 × 72 ft
Lot sq ft1,798
Zoning
DistrictR6B
FAR0.84 built · 2.0 max residential · 2.0 max facility
Zoning map13a
Recorded documents · 3
DEED
$1,520,000
Dec 20, 2017
grantor/seller Czynski, Konrad Jr; Czynski, Ludomir +1
grantee/buyer Diamond 30 LLC
View on ACRIS ↗
POWER OF ATTORNEY
Dec 20, 2017
party one Czynski, Konrad Jr
party two Czynski, Ludomir J
View on ACRIS ↗
DEED
Nov 17, 2003
grantor/seller Czynski, Helena
grantee/buyer Blackburn, Katherine Mcdermott; Czynski, Konrad Jr. +1
View on ACRIS ↗DOB complaints — total 1 · open 0 · closed 1
No DOB violations or HPD violations on file.
Deed & identifiers
SBL3026850052
SWIS610100
Parcel ID6101003026850052
Who owns 30 Diamond Street?
30 Diamond Street, Brooklyn is owned by Diamond 30 LLC per the 2025 NYS assessment roll. It last sold for $1,520,000 in Dec 2017.
Nearby on Diamond 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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