Some properties look like one piece of land but did not start that way. In older, established parts of Pittsburgh, a single site may have been built up from separate parcels bought at different points in time. The land can work as one property today. Its record history can be a different story. When an ALTA land survey is ordered for that kind of property, the surveyor has to look at how the separate parcel pieces relate to the property being surveyed. That question goes beyond locating a boundary line.

When One Property Has More Than One Parcel History

A single property can carry the history of more than one parcel when it was pieced together from adjoining land over the years. The site you see on the ground may not match the tidy record of one newly created lot. Several common setups lead to this.

• A property built up from adjoining parcels
• Parcels bought at different times
• Older property descriptions that stay part of the record
• A current tract without the simple history of a single new lot

What matters here is the split between how the land works now and how it reads on paper. The property may serve as one site for daily use, taxes, and access. Its underlying parcel history can still be layered and older than the current use suggests.

Why Parcel History Can Matter to an ALTA Land Survey

Parcel history matters because the surveyor works from the legal and title information given for the sale and needs to see how the property’s component parcels are described. When a property has several parcel pieces, those pieces each carry their own description in the record. The surveyor reads those descriptions together to understand the property as a whole.

In established parts of Pittsburgh and Allegheny County, a property’s present shape may reflect several transactions or changes over time. That does not apply to every property, and it should not be assumed for any one neighborhood without checking the records. Where it does apply, the number of parcel descriptions tied to a single site can be higher than a buyer expects. The current ALTA/NSPS survey standards, last updated in 2021, are set up for title-based work like this.

Matching the Survey Scope to the Property Being Transferred

The survey assignment should spell out which land is actually part of the transaction when several parcels are involved. This is where confusion tends to start. A buyer may think of the site as one property while the deal documents name it as three separate parcels.

A few questions help set the scope up front:

• Does the transaction involve every parcel tied to the site?
• Are all parcels meant to be treated as one property for this deal?
• Are there parcels next door that share the same owner but are not included?
• Does the survey request match the legal descriptions supplied for the sale?

Sorting this out early keeps the survey pointed at the right land. It also lowers the odds of a mismatch between the survey, the deed, and the title commitment. The aim is a clear picture of what is being bought and sold.

Where Older Parcel Patterns Can Create Extra Coordination

Older parcel setups do not automatically cause trouble, but they can call for extra coordination depending on the records and the transaction. The record for a property built from several parcels may hold small surprises. Working through them early is easier than sorting them out mid-deal.

Some of the issues that can come up:

• Different descriptions tied to adjoining parcels
• Ownership that changed hands several times over the years
• Parcels combined in practice that still carry separate descriptions
• A gap between what the owner calls the property and what the deal documents list
• Points that the surveyor, title professionals, attorney, buyer, and lender may need to sort out together

For a property assembled this way, these are not side notes. They shape how the survey is scoped and how the final drawing describes the land. When the pieces line up, the survey moves faster. When they do not, a few phone calls early can save weeks later.

Questions to Resolve Before Ordering an ALTA Land Survey

A short list of questions can clear up scope before the survey starts. Running through them with your title company and surveyor tends to prevent rework. Here is a practical set to work from:

• Which parcels are part of the transaction?
• Are the current legal descriptions on hand?
• Does the title commitment name all the relevant parcels?
• Is the survey meant to cover the whole assembled property?
• Are there separate deeds or parcel records involved?
• Have the buyer, lender, title company, and surveyor agreed on the scope?
• Are there specific Table A items being requested?

None of these questions require special training to ask. They just need the right people in the same conversation. For a property made up of several parcels, that early agreement is often what keeps the survey on track.

Frequently Asked Questions

Can an ALTA land survey cover several parcels as one property?

It can, depending on the survey assignment and the property and transaction documents. The scope should clearly state the land that the survey is meant to cover. When the intent is to treat several parcels as one property, that needs to be set out in the assignment. Settling this at the start avoids confusion about which land the survey includes.

Why might an older property have several parcel descriptions?

A property may have been put together through more than one purchase over time. Each purchase can carry its own legal description in the record. The way the site looks and works today does not always tell the full story of how the land was acquired. Reading the descriptions together is how the surveyor sees the property as a whole.

Does owning several adjoining parcels automatically make them one parcel?

No. Owning parcels side by side and using them together does not, by itself, set how the property should be described for a given transaction. The records and legal documents still decide that. If the parties want the parcels treated as one, the transaction documents need to say so clearly.