Blog · October 14, 2026 · Ohio
London Plat Map: finding the recorded plat
Lots in this town trace back to recorded plats filed with the county for land near West Jefferson.
Main page: Madison County, OH GIS & Parcel Viewer (official map link, county facts and neighboring maps).
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When a listing near West Jefferson mentions a lot number, you'll need the London plat map to make sense of it. In this London guide: where to request a copy, how a plat differs from a parcel map, and what to look for on the sheet.
The London plat map: start here
For a lot in London, look for the plat book reference on the parcel record; use it to request a copy.
Getting to the right map
Go first to the Ohio Statewide Parcels layer in ArcGIS Map Viewer; it includes each tax parcel from Dublin to West Jefferson. In and around Midway, enter a street address, an owner's name or a parcel number, then pick the result to center the map on it. With a lot near Midway, write down the parcel ID before closing the panel; each clerk in the county uses it to find the file.
When a parcel crosses a boundary
Madison County touches Champaign County, Clark County, Fayette County, Franklin County, and Greene County; every one of them runs a separate parcel map. Acreage along the edge near South Solon may be split across two assessors' files, so look at the neighboring map as well. With a lot near Plain City, the Platbookmapper state page links each bordering county map across Ohio.
City limits and county records
London lies within Madison County, Ohio, so its parcels are on the county's map. As the county seat, London hosts the courthouse, handy when you need recorded documents. With a lot near West Jefferson, City or town hall handles matters such as zoning, permits and utilities inside its limits, while the county keeps the tax map. Lots just outside the city limits near South Solon usually falls under county rules instead.
Sections, lots and bearings
Older tracts around Dublin are often described by metes and bounds, which trace the boundary call by call. Platted lots around West Jefferson are typically described by lot and block, making them easier to find. Keep the legal description for land near Mount Sterling before you request a deed or survey.
Using it on a phone
Most viewers work in a phone browser, handy when you're parked on a road near West Jefferson, so load it before you lose signal. A printout of the tract near Mount Sterling helps when you meet an owner or agent.
A word on accuracy
Tax maps are drawn for assessment, not surveyed, so the edge of a yard near South Solon often sits several feet off the line on screen. If the land is near Dublin, owner names and values update on a schedule, so a deed recorded last month might lag behind.
Who handles what
If the acreage or value on a parcel near Dublin looks off belong with the County Auditor, since that office keeps the assessment data. Building or septic questions for a lot near West Jefferson are for the local planning and health departments, depending on whether the land is inside town limits.
Two different maps
If the tax map and plat differ near Mount Sterling, trust the recorded documents over the GIS layer.
Deeds, plats and who keeps them
For anything that matters, pull the recorded deed from the County Recorder; the parcel map near Plain City only summarizes it. For property near West Jefferson, have ready the book and page listed on the parcel record so staff can find the deed fast.
Lots, blocks and easements
Utility or drainage strips on a lot in London stay with the land when it sells; check the plat notes and any covenants.
When there's no plat
Acreage around Mount Sterling outside a subdivision may have no plat at all; the deed and any recorded survey describe it instead.
Amended plats
Lots near Midway can be combined or reconfigured by a replat, so check for later filings; vacated streets or alleys also get recorded.
A quick look at the area
London serves as the county seat, where most land records are kept. You'll also find West Jefferson, Midway, South Solon, and Mount Sterling, each with its own cluster of lots. Roughly 44,602 people call Madison County home (Census estimate, 2023) on some 466 square miles. Madison County was organized in 1810, so old deeds can run back a long way.
Requesting the plat
Closer to Plain City, many recorder offices offer an online index, while others require a visit or a request; small fees are common.
Questions about the London plat map
How do I read lot and block in London?
On ground around Plain City, lot and block refer to a numbered lot within a block on a recorded subdivision plat.
Is a plat map a survey near Dublin?
Out toward West Jefferson, a recorded plat is based on a survey, but the GIS map is not; a surveyor ties it to the ground.
What do the dashed lines on a plat mean near Plain City?
Good question; building on an easement near West Jefferson is generally restricted, so check before you build.
How do I split a lot in London?
Short answer: lot splits in the town go through the planning office, at least around West Jefferson.
How is land described in Ohio deeds in London?
Around South Solon, deeds use lot and block, metes and bounds or survey descriptions, and the parcel record often summarizes it.
Open the official Madison County, OH 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.