Blog · October 14, 2026 · Connecticut
Hartford County Plat Book, Connecticut
What a Hartford County plat book is, where to track down one around Avon, and the free map that covers the gaps.
Main page: Hartford County, CT GIS & Parcel Viewer (official map link, Hartford County facts and neighboring maps).
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The printed Hartford County plat book and the online parcel map answer the same question, who owns the land near New Britain, in different ways. Here's what a plat book is, where to look for one in Hartford County, and the free official map that stays current between editions.
What a Hartford County plat book is
Private publishers compile plat books from county records, so a county edition is a snapshot of who owned land near Avon the year it was printed. Don't confuse it with a subdivision plat on file for lots in Bloomfield; that recorded plat is a legal document, while the atlas is a reference.
Opening the Hartford County parcel viewer
There's no separate Hartford County parcel site to hunt for; the CT Parcel Viewer carries the county's parcels along with the rest of Connecticut. Use the search box for an address in Berlin or a parcel number, or simply zoom in and click a tract around Bristol. For a backup route to the map covering Bristol, our Hartford County directory entry keeps the link current.
Where Hartford County plat books turn up
Try the library in Avon or a local historical society for older Hartford County editions; libraries sometimes keep past atlases for reference. Collectors and genealogists prize old Hartford County atlases as they display farm names and owners near New Britain long before online maps.
Towns and land across Hartford County
Roughly 735 square miles of land and about 889,226 residents (2020 estimate) make up Hartford County. Much of Hartford County is built out, so most clicks near New Britain land on platted lots. Hartford County was organized in 1666, so deeds for older farms near Bloomfield can run back a long way.
Using the Hartford County map as a modern plat book
The CT Parcel Viewer works as a living Hartford County plat book, with owner names and parcel lines over aerial photos of Hartford County. Print a screenshot of the tracts around Avon if you want a paper copy in the truck.
Atlas details and limits
Plat book pages for Hartford County usually include an index of owners, so you can track down a family name near Avon without knowing the township. Owner names in an older Hartford County edition may be decades out of date, so confirm on the county map before contacting anyone near New Britain. For a land purchase near Avon, rely on the county parcel record and a title search, not an atlas.
Making your own atlas of Hartford County
Farm families near New Britain commonly keep successive editions of the Hartford County plat book, which together display how ownership shifted over decades. Saving PDFs of the county map around New Britain gives you an offline reference when the signal drops.
Tracts that cross the Hartford County line
Near the edge of the county, check the next map over: Litchfield County, Middlesex County, New Haven County, New London County, and Tolland County all border it. Our Connecticut page links each map neighboring Hartford County.
Hartford County land records
The parcel layer for Hartford County points back to recorded deeds and plats, kept by the county's recording office (its title varies by state). Copy the parcel identifier and legal description from the county record before you request a deed for land near Bloomfield.
Hartford County, CT: common questions
Can I use a plat book to track down lot lines near Berlin?
It shows approximate ownership blocks; for lines near Berlin, use recorded plats and surveys.
Is a plat book the same as a recorded plat for a lot in Berlin?
No; a lot in Berlin answers to its recorded plat, and the county atlas is just a reference.
Are older plat books for Hartford County, Connecticut online?
Check the library in Berlin, local historical groups and estate sales for older Hartford County editions.
Is the Hartford County, Connecticut online map better than a plat book?
For current owners near Bloomfield, yes; the CT Parcel Viewer updates as deeds are processed.
Can I buy a new plat book for Hartford County, Connecticut?
It depends on if a publisher has a county edition in print; local offices in Berlin usually know.
Should I use the Hartford County, Connecticut parcel map instead of a plat book?
For current owners near Avon, yes; the CT Parcel Viewer updates as deeds are processed.
Open the official Hartford County, CT parcel map Hartford County in the Platbookmapper directory
Not a survey. County GIS and tax parcel maps are assessment and planning layers. They are not a substitute for a recorded plat, deed, or licensed survey, especially for fences, setbacks, or boundary disputes.