Groton Property Tax Quick Facts
- Location
- Groton, Connecticut
- New London County
- Assessed By
- the New London County assessor
How to Appeal Property Taxes in Groton
Check your assessment
Enter your Groton address for a free 60-second check. We compare your assessed value against comparable sales and neighborhood data.
Get your evidence packet
If over-assessed, pay $45 for a complete appeal packet with comparable sales, equity analysis, and pre-filled forms for New London County.
File your appeal
Submit your appeal to New London County. Our filing guide walks you through every step.
About the Groton Property Market
Groton is a city located in New London County, Connecticut. Every property inside the Groton city limits is assessed by the New London County assessor, which applies Connecticut property tax rules uniformly across the county.
Because Groton property values are set at the county level, the same assessment rules apply to homes throughout the city. Homeowners who believe their Groton home is over-assessed have the right to file a appeal directly with New London County.
Connecticut allows the assessor to defend or adjust the assessed value during a appeal, so Groton homeowners should build a strong evidence-based case before filing — which is exactly what ProtestMax generates for $45.
Groton Property Market Context
As a city in Connecticut, Groton inherits the state's assessment framework — which shapes how over-valuations occur and how homeowners can fight them.
Connecticut market character
Connecticut has some of the highest effective property tax rates in the country at around 2.0%, and assessed value equals 70% of fair market value. Towns revalue on a five-year cycle, and a missed revaluation can leave homeowners badly over-assessed for years.
How Connecticut handles appeals
Connecticut homeowners appeal first to the Board of Assessment Appeals, then to Superior Court for larger cases. Filing an appeal does not risk an increase in assessed value.
When to file in Groton
BAA filing deadline is February 20 (or the next business day). Missing this window locks in your assessment for another year.
Common Groton Property Types
Groton homeowners typically file protests across these property categories:
Single-family homes
The most common residential type and the dominant protest category.
Condominiums
Common in denser parts of the city and near employment centers.
Townhouses
Attached-home neighborhoods in newer subdivisions.
Small multi-family
Duplexes and 2-4 unit buildings assessed as income property.
Commercial
Retail, office, and small commercial along major corridors.
ProtestMax supports all of the above property types in Groton. Each appealpacket is tailored to the property's classification and uses comparable sales from Groton and surrounding New London County neighborhoods.
Groton Property Tax Appeal Questions
How do I appeal my property tax in Groton, Connecticut?
What is the property tax rate in Groton?
When is the appeal deadline for Groton property taxes?
How much can I save on property taxes in Groton?
Can my Groton property tax increase from filing a appeal?
Nearby Cities in New London County
These Connecticut cities share the same appeal deadline and are assessed by the New London County assessor.