NY Property Records
121 Guernsey Street
121 Guernsey Street
Brooklyn · Kings County · 11222
01 · 1–2 FamilySold $610,950 · Sep 2025 ↗
Owner of record
OwnerSwanson, Michael
Assessment · 2025 roll
Land assessed$20,940
Total assessed$148,260
Est. annual tax$18,073 (2027, excl. special districts)
Building
StyleMiscellaneous (Old Buildings, Attached & Semi-Detached Frame Houses, etc)
Year built1931
Living area2,500 sq ft
Lot
Size0.06 acres (GIS)
Frontage × depth25 × 100 ft
Lot sq ft2,500
Zoning
DistrictR6B
FAR1.0 built · 2.0 max residential · 2.0 max facility
Zoning map13a
Recorded documents · 24
SATISFACTION OF MORTGAGE
Oct 16, 2025
mortgager/borrower Swanson, Michael; Ziegler, Chelsa
mortgagee/lender Citizens, Rbs
View on ACRIS ↗
DEED
$610,950
Sep 25, 2025
grantor/seller Swanson, Michael; Ziegler, Chelsea
grantee/buyer Swanson, Michael
View on ACRIS ↗
MORTGAGE
$1,100,000
Sep 25, 2025
mortgagor/borrower Swanson, Michael
mortgagee/lender Mers, Inc.
View on ACRIS ↗Show all 24
AGREEMENT
$1,194,000
Nov 22, 2021
party 1 Swanson, Michael; Ziegler, Chelsa
party 2 Flagstar Bank Fsb; Mortgage Electronic Registration Systems Inc
View on ACRIS ↗
ASSIGNMENT, MORTGAGE
Nov 22, 2021
assignor/old lender Ally Bank; Mortgage Electronic Registration Systems Inc
assignee/new lender Flagstar Bank Fsb; Mortgage Electronic Registration Systems Inc
View on ACRIS ↗
ASSIGNMENT, MORTGAGE
Nov 22, 2021
assignor/old lender Citizens Bank Na; Rbs Citizens Na
assignee/new lender Ally Bank; Mortgage Electronic Registration Systems Inc
View on ACRIS ↗
MORTGAGE
$32,268
Oct 28, 2021
mortgagor/borrower Swanson, Michael; Ziegler, Chelsa
mortgagee/lender Flagstar Bank Fsb; Mortgage Electronic Registration Systems Inc
View on ACRIS ↗
AGREEMENT
$1,300,000
May 31, 2016
party 1 Swanson, Michael; Ziegler, Chelsa
party 2 Citizens Bank, N.A.
View on ACRIS ↗
MORTGAGE
$303,001
May 31, 2016
mortgagor/borrower Swanson, Michael; Ziegler, Chelsa
mortgagee/lender Citizens Bank, N.A.
View on ACRIS ↗
ZONING LOT DESCRIPTION
Oct 22, 2014
party one 39 Norman Ave. Realty LLC; Swanson, Michael +1
View on ACRIS ↗
SUNDRY MISCELLANEOUS
Oct 22, 2014
party 1 Swanson, Michael; Ziegler, Chelsa
party 2 39 Norman Ave. Realty LLC
View on ACRIS ↗
ZONING LOT DESCRIPTION
Feb 6, 2014
party one 121 Guernsey Street, LLC; 39 Norman Ave. Realty LLC
View on ACRIS ↗
DEED
$1,100,000
Jan 29, 2014
grantor/seller 121 Guernsey Street LLC
grantee/buyer Swanson, Michael; Ziegler, Chelsa
View on ACRIS ↗
MORTGAGE
$1,000,000
Jan 29, 2014
mortgagor/borrower Swanson, Michael; Ziegler, Chelsa
mortgagee/lender Rbs Citizens N.A.
View on ACRIS ↗
POWER OF ATTORNEY
Jan 29, 2014
party one Ziegler, Chelsa; Ziegler, Chelsa J
party two Swanson, Michael
View on ACRIS ↗
ASSIGNMENT OF TAX LIEN
Dec 27, 2013
party 1 The Bank Of New York Mellon
party 2 The Bank Of New York Mellon
View on ACRIS ↗
SUNDRY MISCELLANEOUS
Nov 14, 2013
party 1 121 Guernsey Street, LLC; 39 Norman Ave. Realty LLC
View on ACRIS ↗
ZONING LOT DESCRIPTION
Nov 14, 2013
party one 121 Guernsey Street, LLC; 39 Norman Ave. Realty LLC
View on ACRIS ↗
DEED
$10
Mar 23, 2012
grantor/seller De La Villa , Orietta
grantee/buyer 121 Guernsey Street LLC
View on ACRIS ↗
TAX LIEN SALE CERTIFICATE
Nov 23, 2011
party 1 City Of New York
party 2 Bank Of New York
View on ACRIS ↗DOB violations — total 1 · open 0 · dismissed 1
C-CONSTRUCTION OTHER OPTIONAL
Dismissed
May 5, 2011
REMEDY; STOP ALL WORK MAKE SITE SAFE CONTACT DOB
BIS ↗DOB complaints — total 23 · open 0 · closed 23
Show all 23
Construction – contrary to/beyond approved plans
Closed
Feb 25, 2011
Complaint 3369577
View on BIS ↗
Construction – contrary to/beyond approved plans
Closed
Feb 12, 2011
Complaint 3368476
View on BIS ↗No HPD violations on file.
Deed & identifiers
SBL3026170035
SWIS610100
Parcel ID6101003026170035
Who owns 121 Guernsey Street?
121 Guernsey Street, Brooklyn is owned by Swanson, Michael per the 2025 NYS assessment roll. It last sold for $610,950 in Sep 2025.
Nearby on Guernsey 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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