A home sale that includes an extra vacant lot next door sounds like a bonus. Sometimes it is. But without a closing survey, you may not know exactly what you’re buying, where the lines sit or whether the fence, driveway or shed actually belongs where everyone thinks it does.

This mix-up happens often, where older neighborhoods have side lots that got split, combined or resold over the years. A closing survey clears up the confusion before you sign anything.

Confirming the Home and Side Lot Are Separate Parcels

Before anything else, you need to know if the home and the side lot are actually two separate parcels or one combined piece of land. This affects taxes, financing and what you can legally do with the property later.

Some properties were platted decades ago as separate lots, then treated informally as one property for years. Other times, a prior owner may have formally combined the parcels through the county recorder or auditor’s office.

A closing survey confirms:

• Whether the home and side lot have separate parcel numbers
• Whether the parcels were ever formally combined
• Whether the deed matches what the county records show

This matters because a lender may treat a separate side lot differently than a combined parcel, especially when it comes to loan terms or property taxes.

Verifying Which Parcel Boundaries Are Included in the Sale

Once you know how many parcels exist, the next step is confirming exactly where each boundary line sits. This sounds simple, but boundary lines drawn decades ago don’t always match what’s on the ground today.

A closing survey locates the actual property corners and boundary lines for both the home lot and the vacant side lot. This confirms the legal description in the deed matches the physical land being sold.

Older neighborhoods sometimes have boundary lines that shifted slightly over time due to old fences, past surveys with different methods or informal agreements between neighbors. A closing survey catches these differences before closing, not after.

If a boundary discrepancy shows up, you and the seller can address it while there’s still time to adjust the deal, request a correction or negotiate terms.

Checking Improvements That Extend Across the Side Lot

A vacant lot next to a home is rarely completely empty. Sheds, fences, driveways, patios and even parts of a garage sometimes sit on or near the side lot without anyone realizing it.

A closing survey identifies any structure or improvement that crosses the boundary line between the home and the side lot. This includes:

• A driveway or parking pad that extends onto the vacant parcel
• A fence line that doesn’t match the actual property line
• A shed, deck or landscaping feature built partly on the side lot

Finding these issues before closing gives you options. You can negotiate who’s responsible for an encroachment, request it be resolved before the sale closes or simply go in with full knowledge of what you’re getting.

Reviewing Access Between the Home and Vacant Parcel

Access matters just as much as boundaries. A vacant side lot that seems easy to reach on foot might not have any formal legal access if you ever want to sell it separately or build on it later.

A closing survey reviews whether the side lot has its own frontage on a public street, or whether it depends on an easement or shared driveway to reach a road. This is especially important in older neighborhoods, where narrow lots and hillside terrain sometimes limit how a side lot can be accessed or developed.

Ask your surveyor to confirm:

• Whether the side lot has direct street frontage
• Whether any access easement exists and if it’s properly recorded
• Whether utility lines or drainage paths cross the side lot in a way that affects future use

These answers matter even if you have no plans to build on the side lot right now. Future buyers or lenders will ask the same questions if you decide to sell later.

Using Closing Survey Information Before Ownership Transfers

A closing survey gives you a clear, documented picture of what you’re buying before ownership changes hands. This protects you from disputes, surprise easements or boundary problems that surface after closing, when they’re much harder and more expensive to fix.

Title companies and lenders often require a closing survey specifically because of these risks. If your sale includes a vacant side lot, ask early whether your lender or title company requires a new survey or will accept an older one, since this can vary by lender, title company and county.

If your closing timeline is tight, order the survey as soon as the side lot is confirmed as part of the sale. Waiting until the final week before closing leaves little room to fix problems if the survey turns up a boundary or access issue.