Blog · October 14, 2026 · New York
Plattsburgh Plat Map, New York: plats and lots
A recorded plat shows how land near Chazy was divided into lots.
Main page: Clinton County, NY GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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When a deed near Mooers says lot and block, look up the Plattsburgh plat map it refers to. In this Plattsburgh guide: where to request a copy, plat versus tax map, and what to look for on the sheet.
Who keeps the Plattsburgh plat map
For a subdivision near Altona, the deed usually cites the plat; use it to request a copy.
Pulling up a parcel
Parcels around Mooers can be looked up on the Clinton County ArcGIS parcel map, which opens without registering. Without an address in hand, follow US Route 11 on the aerial until the lines appear, then click inside the one you want. For land near Au Sable, the parcel card normally shows the owner of record, assessed acreage, the parcel number and often a sale date.
Where Plattsburgh fits in
Plattsburgh lies within Clinton County, New York, so its parcels are on the county's map. Plattsburgh is also the county seat, handy when you need recorded documents. In and around Chazy, city or town hall handles matters such as zoning, permits and utilities inside its limits, and the county still keeps the parcel and deed records. Land beyond the town limits out by Dannemora generally follows county rules instead.
Backing up the map with records
The map is an index, not the title: recorded deeds, plats and easements covering ground around Peru are filed with the County Clerk. With a lot near Au Sable, have ready the book and page shown in the record panel so staff can find the deed fast.
Before you lean on the lines
Acreage on the record is an estimate; just a licensed surveyor sets the real corners on land around Peru. Around Mooers, owner names and values update on a schedule, so a deed recorded last month may not show yet.
Next door to Clinton County
Clinton County borders Essex County, Franklin County, Chittenden County, VT, and Grand Isle County, VT; every one of them runs a separate parcel map. Ground near Chazy that runs to the line may show up across two assessors' files, so look at the neighboring map before you assume the acreage. With a lot near Peru, the Platbookmapper state page links every bordering county map across New York.
Metes and bounds instead
Acreage around Chazy outside a subdivision may have no plat at all; the deed and any recorded survey describe it instead.
Plat map vs. parcel map
The Clinton County ArcGIS parcel map draws parcels for taxes, while the recorded plat is the legal document.
Taking the map into the field
The parcel map usually runs in a mobile browser, handy when you're parked on a road near Altona, but coverage can be spotty out of town. A saved image of the lot near Chazy and its lines keeps working without signal.
Reading the legal description
Tracts outside towns near Mooers commonly use metes-and-bounds descriptions, listing bearings, distances and landmarks. Subdivision lots in Altona refer to a recorded plat, making them easier to find. Keep the legal description for land near Chazy for any title or survey request.
Reading the plat sheet
Easements on the plat near Au Sable can block a shed or pool; check the plat notes and any covenants.
Amended plats
Lots near Dannemora can be combined or reconfigured by a replat, so check for later filings; vacated streets or alleys also get recorded.
Getting answers from the right desk
Questions about value or the owner field for land near Peru go to the county Real Property Tax Services office, the office behind the parcel record. Questions about what you can build around Dannemora are for the local planning and health departments, town or county, depending on location.
Getting a copy
For acreage around Au Sable, some counties put plat images online, otherwise call or visit with the reference; small fees are common.
A quick look at the area
Plattsburgh serves as the county seat, where most land records are kept. You'll also find Peru, Dannemora, Chazy, and Altona, each with its own cluster of lots. Roughly 78,115 people live in Clinton County (Census Bureau estimate, 2023) on roughly 1,038 square miles. Clinton County was organized in 1788, which matters when you trace an old farm's title. Features like Saranac River, Great Chazy River, and Flat Rock State Forest help you orient on the aerial around Dannemora.
Plattsburgh: common questions
What do the dashed lines on a plat mean near Au Sable?
If you're looking near Altona, recorded plat easements usually show on the sheet; read the plat notes.
Who has recorded plats for land near Mooers?
Good question; recorded plats near Altona are filed with the County Clerk; small copy fees are common.
What is a lot and block description around Au Sable?
For a home near Chazy, lot and block refer to a numbered lot within a block on a recorded subdivision plat.
How do I split a lot in Plattsburgh?
Generally, lot splits in Plattsburgh go through the planning office.
Is the parcel map a survey for land near Peru?
No; boundary questions near Mooers need a licensed surveyor, so a fence may sit off the line
Open the official Clinton County, NY parcel map See it 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.