55 Mountain St, Derby, CT 06418 Property Records

Derby City property record for 55 Mountain St, Derby, CT 06418

Property Summary

Property Type	Single Family Home
Details	4 bd · 1.5 ba · 1,477 sqft · built 1951
Lot Size	0.14 acres (6,098 sqft)
Owner	2 Individual Names on File
Last Sale	$113,600 (Sep 2020)
Tax Bill	$6,462 (2025)
Deeds & Mortgages	Sep 2020 Sale Sep 2020 Sale
Flood Zone	Zone X (minimal risk)
APN	`DERB M:8 B:11 L:46`

Property Details

APN / Parcel Number

Primary APN	`DERB M:8 B:11 L:46`
Alternative APNs	`003406` `9199` `3406`

Interior

Bedrooms	4 Beds
Full Baths	1.5 Baths
Half Baths	1 Half Bath
Total Rooms	6 Rooms
Stories	1 Story
Building Area	1,477 sqft Living Area
1st Floor Area	1,477 sqft
Basement Area	1,144 sqft
Unfinished Basement	1,144 sqft

Exterior

Year Built	Built 1951
Effective Year Built	Effective 1986
Architectural Style	Cape Cod
Exterior Material	Aluminum/Vinyl
Construction Type	Frame
Lot Area	6,098 sqft (0.14 acres)
Garage Type	Basement
Parking Spaces	1 Parking Space

Utilities, Heating & Cooling

Cooling System	HVAC
Heating System	Hot Water
Heating Fuel	Oil
Sewer	Septic

Location & Zoning

Account Number	3406
Street Address	55 MOUNTAIN ST
City	DERBY
State	CT
Zip	06418-1257
Property Category	Residential
Property Type	Residential > Single Family > Home
Local Zoning Code	R-5
Legal Block	11
Legal Lot Number	46
Jurisdiction	DERBY CT
Township / Civil Division	DERBY
Census Block Group	2
Census Block	2002
Census Tract	120200

Owner

Source: Derby City assessment roll, as of June 25, 2026

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record	2 Individual Names on File
Mailing Address	55 MOUNTAIN ST, DERBY, CT 06418-1257
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Date	Document
Sep 21, 2020	Warranty Deed, Transfer UNKNOWN
Sep 21, 2020	Personal Representative Deed, Transfer

Assessor's Deed Record

Deed Names	2 Verified Names on Deed
Last Sale	Sep 21, 2020 · Amount on Record
Deed Sale	Sep 21, 2020 · Amount on Record
Deed Document Number	20201212
Deed Book / Page	826 / 235
Record Updated	Sep 20, 2026

September 2020: Warranty Deed, Transfer

Document Type	Warranty Deed
Jurisdiction	DERBY CT
Recording Date	Sep 21, 2020
Property Address	55 MOUNTAIN ST, DERBY, CT 06418-1257
Document Number	826-237
Book / Page	000826 / 000237
Instrument Date	Sep 11, 2020
Instrument	1213
Transaction Type	Transfer
Record Updated	Oct 13, 2020
Title Company	UNKNOWN

Transaction

Tax	$0.00
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name
Address	55 MOUNTAIN ST DERBY CT 064181257, DERBY, CT 06418-1257

September 2020: Personal Representative Deed, Transfer

Document Type	Personal Representative Deed
Jurisdiction	DERBY CT
Recording Date	Sep 21, 2020
Property Address	55 MOUNTAIN ST, DERBY, CT 06418-1257
Document Number	826-235
Book / Page	826 / 235
Instrument Date	Sep 1, 2020
Instrument	1212
Transaction Type	Transfer
Record Updated	May 21, 2021

Transaction

Amount	Amount Recorded
Tax	$0.00
Amount Accuracy	Full Amount Stated
Additional	Arm's Length

Transferred From (Grantor/Seller)

Name	Verified Name

Transferred To (Grantee/Buyer)

Name	Verified Name

Tax Assessment & Valuation

Source: Derby City assessment roll, as of June 25, 2026

Property Jurisdictions

Type	Name
State	Connecticut
County Subdivision / Municipality	Derby City
Unified School District	Derby School District (PK - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$6,462.00	$149,590 (-) Land $31,890 Building $117,700	$104,713 Land $22,323 Building $82,390
2024	$6,462.00 (+11.92%)
2023	$5,774.00	$149,590 (-) Land $31,850 Building $117,740
2022	$5,774.00	$149,590 Land $31,850 Building $117,740

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

Source: FEMA National Flood Hazard Layer, effective January 25, 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire Risk	Low lower than 95% of the US · lower than 92% of Connecticut
Wildfire Likelihood	Under 0.01% annual chance
Exposure	None beyond ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water System	REGIONAL WATER AUTHORITY serves 418,900 people · EPA ID CT0930011
Water Source	Surface water
Last State Inspection	Jun 2024
Lead	Under 1 ppb (2026) action level 15 ppb

Violations Reported to EPA

Water Quality	None last 10 years
Treatment and Procedure	None last 10 years
Monitoring and Reporting	None last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 353 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Frontier Fiber	7,000 / 7,000
Xfinity Cable	2,000 / 250

May also be available: AT&T, T-Mobile, Verizon.

Nearby Properties on Mountain St

Nearby Streets

Search Property Records by Address or Parcel Number

Search by:

By searching, you agree to: Terms • Privacy • Disclosures