The Assessor’s office is responsible for the maintenance of records on the ownership of properties. Assessments are computed at 70% of the estimated market value of real property at the time of the last revaluation which was 2023.
Information on the Property Records for the Municipality of New Canaan was last updated on 12/26/2025.
Property Summary Information
Parcel Data And Values
Building
Building 1
Outbuildings
Sales
Permits
Parcel Information
Location:
66 SEMINARY ST
Property Use:
Residential
Primary Use:
Residential
Unique ID:
15461
Map Block Lot:
L 18 88
Acres:
0.2100
490 Acres:
0.00
Zone:
BRES
Volume / Page:
1107/ 766
Developers Map / Lot:
1181
Census:
00351
Value Information
Appraised Value
Assessed Value
Land
740,600
518,420
Buildings
412,100
288,470
Detached Outbuildings
8,600
6,020
Total
1,161,300
812,910
Owner's Information
Owner's Data
HAAGEN HENNING FRIEDRICH
HAAGEN SILKE
66 SEMINARY ST
NEW CANAAN, CT 06840
Building 1
Building Use:
Single Family
Style:
Victorian
Living Area:
1,899
Stories:
2.00
Construction:
Wood Frame
Year Built:
1872
Total Rooms:
5
Bedrooms:
3
Full Baths:
2
Half Baths:
2
Fireplaces:
0
Heating:
Forced Hot Air
Fuel:
Oil
Cooling Percent:
100
Basement Area:
842
Basement Finished Area:
0
Basement Garages:
0
Roof Material:
Wood
Siding:
Clapboards
Units:
Special Features
Fin Bsmt
400
Gross Basement Area
842
Attached Components
Type:
Year Built:
Area:
Open Porch
1872
135
Detached Outbuildings
Type:
Year Built:
Length:
Width:
Area:
Garage Poor
1890
0.00
0.00
288
Owner History - Sales
Owner Name
Volume
Page
Sale Date
Deed Type
Sale Price
HAAGEN HENNING FRIEDRICH
1107
0766
11/20/2025
War Surv
$2,225,000
LCBC LLC
1087
0843
05/22/2024
Trustees Deed
$1,100,000
MCEVOY HEIDI W TRUSTEE
0727
0306
09/19/2005
Quit Claim
$0
MCEVOY HEIDI W
0404
0948
04/01/1993
Quit Claim
$0
MCEVOY GEORGE F JR
0327
0185
07/16/1986
Warranty Deed
$440,000
BURNHAM DOROTHY M
0090
0224
07/10/1951
Warranty Deed
$8,000
Building Permits
Permit Number
Permit Type
Date Opened
Reason
BPR-24-30
Residential
12/05/2024
ENCL EXISTING COVERED PORCH AND DECK
BP-24-184
Residential
07/02/2024
RENOVATE KITCHEN, ADD 1/2 BATH TO BASEMENT, REN 3 EXISITING BATHROOMS, REN LAUNDRY IN BASEMENT, REPL
19825
Residential
11/29/1999
WOOD STOVE
1857-0088
Garage
09/18/1997
CONVERT GARAGE TO WO
GIS Map
Google Map
Unique Id:
Location:
MBL:
Primary Use:
Zone:
Acres:
Appraised Value:
Assessed Value:
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