Buying a commercial property with more than one parcel of land can be tricky. Boundaries between the parcels can overlap. Easements can cross from one parcel to another in ways title work alone won’t show. One parcel’s access might even depend on rights held over a different parcel. An ALTA survey shows you these problems before you close on the deal, not after.

If you are looking at a multi-parcel commercial site, your survey should focus on the risks that come with owning more than one parcel. 

ALTA Survey Items That Matter for Multi-Parcel Properties

An ALTA survey is a boundary and title survey. It follows rules set by the American Land Title Association and the National Society of Professional Surveyors. Lenders and title companies trust it because every ALTA survey follows the same format. That makes it easy to compare properties and easy to insure.

For a property with just one parcel, a basic survey is often enough. Multi-parcel properties are not so simple. Each extra parcel has its own history of ownership, its own easements, and sometimes its own zoning past, even if all the parcels have worked as one site for years.

Ask your surveyor for:

• A check on how each parcel’s boundary lines line up with the others, including any gaps or overlaps
• A list of easements, even ones that touch only one parcel but serve the whole property
• A note on whether the parcels touch each other, or if a road, ditch, or strip of land splits them apart
• A flood zone check for each parcel on its own, since FEMA flood zones can change from parcel to parcel even on one site

A surveyor will also check flood maps from the Miami Conservancy District. This matters here because of the area’s history with flooding along the Great Miami River.

Understanding Multi-Parcel Conditions Before Selecting Table A Items

ALTA surveys use a list called Table A. This list lets buyers pick extra items to add to the survey. The right choices depend on the property itself, not a one-size-fits-all list.

Before you pick Table A items, learn three things about the site.

How the parcels came together. Were they always separate, or was the land once one big parcel that got split up? A split can leave behind easements or setback problems that only show up when someone looks closely.

Whether the parcels share anything. Shared parking lots, shared stormwater ponds, or a shared driveway that crosses parcel lines change which Table A items you need. Item 4 (building footprints) and Item 11 (utility marks) matter more when things cross parcel lines.

What you plan to do with the land. A buyer who wants to combine the parcels for a new project needs different survey information than a buyer who wants to keep things as they are. Planning a new site almost always needs topographic data (Table A Item 16 or a separate topographic survey) along with the boundary work.

Talk about Table A choices with your surveyor, lender, and title company early. What each one needs can be different, and it can depend on the lender, the title company, or the size of the deal. Changing your order after work has started often costs more money and takes more time.

ALTA Survey Items That Document Access and Property Rights

Access is one of the biggest problems buyers find out about too late on multi-parcel sites. A parcel can look fine on a map but still have no legal way in if the only path crosses land it does not own.

Your ALTA survey should show:

• A clear path to a public street for each parcel, not just for the property as a whole
• Recorded easements that give access, cross-access, or shared driveway rights between parcels
• Any gap between the mapped road and the real, physical road, which happens more than most buyers think
• Encroachments, like fences, signs, or pavement, that cross a boundary line without a recorded easement

In Dayton and nearby areas, older business strips along roads like Wilmington Pike and North Main Street sometimes have access deals that were never written down the right way. A fresh survey plus a title search can catch this before it becomes your problem instead of the seller’s.

If the survey shows that a parcel depends on an easement across land you are not buying, get it in writing. Make sure the easement is recorded, still valid, and passes on with the property. Do not just assume it works because it has always worked before.

Survey Information That Supports Development and Site Planning

If you plan to build, expand, or redo a multi-parcel site, you need survey data that goes beyond boundaries and title issues. This is where extra details on land shape and utilities pay off.

Helpful information for site planning includes:

• Ground slopes and drainage patterns across all the parcels together
• Locations of visible utilities, plus underground utility marks from a locate service when possible
• Building setback lines based on current zoning, checked with the city or county, not just guessed from the survey
• Wetland or floodplain lines that could limit where you can build

Dayton has a mix of older industrial lots and newer commercial land, and soil and drainage can change a lot even within a few blocks. A site that looks simple on paper might need more soil testing once the grading and drainage data comes in. Get that information while you are still doing your homework, not after you have already planned your project with the city.

If you plan to combine the parcels into one legal parcel later through a replat, tell your surveyor before the work starts. It changes how boundaries and easements get shown, and it can save you from paying for a second survey down the road.

Coordinating ALTA Survey Requirements With Commercial Due Diligence

The ALTA survey does not work alone. It works together with title review, zoning checks, and lender rules. Timing all of this the right way keeps your deal moving.

A few things to line up early:

• Ask your lender exactly which Table A items they need. Rules can change from lender to lender, and finding this out late can mean redoing the fieldwork.
• Send your title commitment to the surveyor as soon as you get it. Easements and other items listed in the title work need to be found and shown on the survey. A surveyor without that document is working with half the picture.
• Tell the title company right away if the survey and the title commitment do not match. Boundary or easement problems are much easier to fix before you sign than after.
• Check your closing date against a real survey timeline. Multi-parcel surveys usually take longer than single-parcel surveys because there is more to research.

None of this is legal advice. If the survey or title work raises questions about ownership, easements, or access, talk to your real estate attorney before you close.

Frequently Asked Questions

What makes an ALTA survey different from a boundary survey? 

An ALTA survey follows a set of rules from the American Land Title Association and the National Society of Professional Surveyors. It also includes title items, like easements and encroachments, that a plain boundary survey does not cover.

Do I need a separate ALTA survey for each parcel in a multi-parcel purchase? 

Usually not. One surveyor can complete one ALTA survey that covers all the parcels in the deal. Each parcel’s boundary and title details still get listed on their own inside that survey.

How long does an ALTA survey take for a multi-parcel commercial property? 

It depends on how many parcels there are, how big the site is, and how fast the title work comes in. Multi-parcel surveys usually take longer than single-parcel ones because there is more to check. Ask your surveyor for a timeline based on your project.