Blog · September 30, 2026
What Is an Eave Easement?
An eave easement allows a roof overhang, gutter, or similar projection to occupy the air above the neighboring lot. It legalizes a specific encroachment the plat expects. It does not let you push a new addition across the line.
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Air, not a footprint
Zero-lot-line and townhouse construction often puts the wall on the line and the eave past it. Without an easement, the eave is an encroachment. The plat cures that by granting an eave easement a foot or two wide, sometimes combined with the maintenance easement and sometimes separate. The right is to keep that projection in the air space. It is not a right to occupy the ground underneath with a footing, a deck, or a fence that claims the strip. Read the list of things allowed: eaves, gutters, downspouts, and sometimes footings. If footings are not listed, do not add them because concrete seems related to roofs. If only the existing eave is covered, a rebuilt roof that sticks out farther may exceed the grant. The dimension is the limit.
How the plat shows it
Look for a thin hatch along the wall, a note such as 2-foot eave easement, or a detail. The detail controls if the main drawing is too small to show a one-foot strip. Do not scale the eave off a PDF and compare it with a laser measure to the drip line as if that audit were a survey. A laser measure is not a survey. The recorded dimension is the easement. The built eave might be inside it, exactly on it, or, if someone framed long, outside it. A surveyor can relate the as-built eave to the easement. You should not trim the neighbor’s gutter or extend yours based on a phone photo. Party-wall and eave rights get confused. The party wall is the shared wall. The eave is the overhang past it.
Title and resale
An eave easement should appear in the plat notes or a declaration so the next buyer of the burdened lot cannot claim surprise and demand the overhang be sawed off. If it is missing and the eave crosses the line, you have an encroachment to disclose and to cure, not an implied eave easement you invent from custom. County GIS will not show a one-foot air right. Platbookmapper links to the county map and stops. It does not draw lot lines or overhangs. If you are replacing a roof, match the new eave to the easement width. A wider eave is a new ask, and it needs a new grant, not a contractor’s preference.
What to do next
- Find the eave dimension and the list of permitted projections.
- Keep ground uses out unless the note grants them.
- Do not scale a new overhang beyond the stated width.
- Separate the eave easement from the party wall and from the maintenance strip.
The mix-up to avoid
Assuming any overhang is allowed because the houses are close. The easement is a written width for listed parts of the building. An unlisted balcony is still an encroachment.
Questions people ask
Does the eave easement include the right to drain water onto the neighbor?
Only if gutters and discharge are part of the grant. Dumping a downspout onto the next foundation can be outside the easement and a nuisance besides. Read the drainage note. Many plats send roof water to a designed path, not onto the neighbor’s slab.
Who trims the eave?
The owner of the building that has the eave, using any maintenance easement if they need a ladder on the next lot. The easement is not a duty on the neighbor to maintain your roof.
Find the county map
Start at Platbookmapper, search the county, and open the local GIS link. Write down the parcel number before you compare the screen to a paper plat.
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.