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 2022.
Information on the Property Records for the Municipality of Waterbury was last updated on 11/14/2025.
Property Summary Information
Parcel Data And Values
Building
Building 1
Outbuildings
Sales
Permits
Parcel Information
Location:
1717 THOMASTON AVE
Property Use:
Industrial
Primary Use:
Storage Warehouse
Unique ID:
007409730002
Map Block Lot:
0074-0973-0002
Acres:
2.6400
490 Acres:
0.00
Zone:
CG
Volume / Page:
7977/ 74
Developers Map / Lot:
Census:
Value Information
Appraised Value
Assessed Value
Land
240,800
168,560
Buildings
346,600
242,620
Detached Outbuildings
19,100
13,370
Total
606,500
424,550
Owner's Information
Owner's Data
THOMASTON AVE 1717 LLC
45 GROVEWAY
CLINTON, CT 06413
Building 1
Category:
Industrial
Use:
Storage Warehouse
GLA:
40,322
Stories:
2.00
Construction:
Average
Year Built:
1935
Heating:
Space Heater
Fuel:
Gas
Cooling Percent:
0%
Siding:
Brick Veneer
Roof Material:
Composite Built Up
Beds/Units:
0
Special Features
Sprinklers
40322
Attached Components
Detached Outbuildings
Type:
Year Built:
Length:
Width:
Area:
Chain Link Fencing
1990
1
760
760
Asphalt Paving
1990
7,500
Owner History - Sales
Owner Name
Volume
Page
Sale Date
Deed Type
Sale Price
THOMASTON AVE 1717 LLC
7977
0074
09/10/2019
Additional Parcel
$400,000
HAROS LLC
6878
0282
12/29/2011
Quit Claim
$0
HAROS ENTERPRISES LLC
4098
0098
02/01/2001
Additional Parcel
$0
Building Permits
Permit Number
Permit Type
Date Opened
Reason
2025.3222
Building
11/14/2025
KELLY GREEN BOARD - Tenant fit-out-building & fire code improvements (attached drawings A-0 & A-1 DA
2023.1954
Mechanical
07/17/2023
fire alarm 1717 thomaston ave.
2023.0404
Electrical
03/30/2023
install new 3000a 480/277 4w service. install exit and emergengy lights to drawing. correct existing
2022.0653
Building
02/07/2023
CHANGE OF USE - FROM BUS COMPANY TO MANUFACTURER OF - KELLY BOARD PRODUCTS - - change of contractor
2021.3051
Mechanical
11/01/2021
install seven (7) infrared heaters- gas piping as needed. - Replace cracked cast iron boiler-
2021.0147
Plumbing
01/19/2021
gas pressure test
GIS Map
Google Map
Unique Id:
Location:
MBL:
Primary Use:
Zone:
Acres:
Appraised Value:
Assessed Value:
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