What an ALTA Survey Is and Why It Comes Up in NY Sales
An ALTA/NSPS land title survey is a detailed document prepared by a licensed surveyor that maps the physical boundaries of a property, identifies improvements on the land, notes easements and rights-of-way, flags encroachments, and documents access points and utility locations. The acronym stands for American Land Title Association and National Society of Professional Surveyors, the two organizations that jointly set the standards for how these surveys are prepared.
For commercial real estate, an ALTA survey goes well beyond a basic boundary or location survey. A standard residential survey might confirm that a fence is inside the lot line. An ALTA survey, by contrast, will document whether a neighboring building overhangs your air rights, whether a shared driveway has a recorded easement, and whether any setback violations exist on older improvements. That level of detail matters when a buyer is committing significant capital and a lender is underwriting a loan against the asset.
In New York, ALTA surveys come up in commercial sales because the transaction parties, not state law, require them. There is no blanket New York statute that says every commercial property sale must include a current survey. What drives the requirement is the combination of lender underwriting standards, title insurer risk management, and buyer due diligence expectations. If any one of those three parties wants a survey, the deal typically does not close without one.
For owners of small multifamily or mixed-use buildings in New York, this matters because the property type often has characteristics that make surveys more likely to be requested: shared walls, rear lot access, older improvements, and parcels that have been subdivided or combined over decades of ownership.
Who Actually Requires the Survey: Lender, Buyer, or Title Company
The clearest way to think about survey requirements is to trace who is asking and why.
Lenders are the most common source of a survey requirement on commercial transactions. When a buyer finances the purchase with a commercial loan, the lender's underwriting guidelines typically require an ALTA/NSPS survey to confirm that the collateral matches the legal description in the loan documents. If there is an encroachment or a boundary dispute, the lender wants to know before funding. This is not a New York rule; it is standard commercial lending practice across the country.
Title insurers are the second common source. A title company issuing a lender's or owner's title policy on a commercial property will often require a current survey to remove certain exceptions from the policy. Without a survey, the title commitment may include broad exceptions for matters that a survey would reveal, such as encroachments or easements not shown in the public record. Buyers and their lenders generally do not want those exceptions left open, so the survey gets ordered to clear them.
Buyers themselves sometimes drive the requirement, particularly sophisticated investors who want independent confirmation that the property matches what the seller has represented. A buyer underwriting a small apartment building or a mixed-use storefront in New York will often include a survey contingency in the purchase contract, especially if the property has shared access, parking, or older construction where encroachments are plausible.
As a seller, the practical takeaway is this: even if you do not think a survey is necessary, assume that a buyer with financing will require one. Getting ahead of that expectation before you go to market is one of the most effective ways to protect your timeline. You can read more about what serious buyers review during due diligence in this guide to small multifamily due diligence.
What the 2026 ALTA/NSPS Standards Changed for Sellers
The most recent update to the ALTA/NSPS standards became effective February 23, 2026, and applies to any survey begun on or after that date. For sellers listing a commercial property in 2026, this is the version of the standards that will govern any new survey ordered during your transaction.
Two changes from the 2026 update are worth understanding at a practical level.
First, surveyors may now be required, if requested by the client, to include a table of potential encroachments. This means the survey can be configured to produce a more explicit inventory of boundary-related risks, which gives buyers and lenders a cleaner picture of what exists on or near the property line. For sellers, this is a double-edged point: a thorough survey protects the deal by surfacing issues early, but it also means that problems you were not aware of may become documented during the buyer's due diligence period.
Second, the 2026 standards require surveyors to note certain statements from interested landowners or occupants about boundary or title issues. If a neighbor has made a claim about where the lot line runs, or if a tenant has raised a question about access, that information may now appear in the survey record. Sellers who have unresolved neighbor disputes or informal access arrangements should address those before a survey is ordered.
The practical implication for a New York seller is straightforward: if your property has any of the common risk factors (shared driveways, rear lot access, older additions, or informal easements), order a preliminary title search and discuss survey timing with your attorney before you accept an offer. Waiting until a buyer's lender orders the survey puts the timeline entirely in someone else's hands.
Common Issues Surveys Uncover on NY Commercial Properties
New York's older building stock and dense urban parcels create a predictable set of survey findings that sellers should anticipate. Understanding these in advance helps you decide whether to address them before listing or disclose them clearly so buyers can price accordingly.
Encroachments are among the most common findings. A staircase, fire escape, bay window, or building cornice that extends over the property line or onto a neighbor's parcel will appear in an ALTA survey. In older New York neighborhoods, these conditions are common and sometimes have decades of informal acceptance behind them. That does not make them legally clean, and a buyer's lender may require a resolution before funding.
Easement gaps or conflicts arise when the recorded easements do not match how the property is actually being used. A shared alley that has no recorded easement, or a utility easement that runs through a portion of the building, can create title exceptions that slow or complicate closing.
Setback violations appear when improvements were built closer to the lot line than zoning allowed at the time of construction, or when zoning changed after the building was built. These are not always deal-killers, but they require disclosure and sometimes a variance or title insurance endorsement to resolve.
Lot line discrepancies occur when the legal description in the deed does not precisely match the physical boundaries on the ground. This is especially common on parcels that were assembled from multiple smaller lots over time, which is a frequent pattern in New York commercial corridors.
Sellers who want to understand how these kinds of issues affect buyer perception and valuation can also review how to package your small multifamily property for maximum buyer interest for context on how presentation and documentation affect deal quality.
How to Avoid Closing Delays Caused by Survey Problems
Survey-related delays fall into two categories: delays caused by the time it takes to order and complete the survey, and delays caused by what the survey finds. Both are manageable if you plan ahead.
On the timing side, a commercial ALTA/NSPS survey in New York typically takes two to four weeks from the order date, depending on the surveyor's workload, the complexity of the property, and whether the surveyor needs to access the interior of the building or coordinate with tenants. If your transaction has a 45-day due diligence period and the buyer does not order the survey until week two, you are already cutting it close before any findings are even reviewed.
Sellers can reduce this risk by taking a few concrete steps before going to market:
- Pull your existing survey, if one exists, and check its date. A survey more than five years old may not satisfy a lender's requirements, but it gives the new surveyor a starting point and can reduce turnaround time.
- Order a preliminary title commitment early. The title company's exception list will often signal what issues a survey is likely to surface, giving you time to address them.
- Identify any informal access arrangements, neighbor agreements, or shared utility situations and discuss them with your attorney before listing. These are the conditions most likely to appear in a survey and generate lender questions.
- Disclose known encroachments or boundary questions in your listing materials rather than waiting for the survey to surface them. Buyers who understand the issue before making an offer are less likely to renegotiate or walk away when the survey confirms it.
On the findings side, the key is to avoid surprises. A seller who already knows about a fire escape encroachment and has a title insurance endorsement in place is in a much stronger negotiating position than one who learns about it for the first time during the buyer's due diligence period. You can also review small multifamily inspection red flags for a broader look at the physical and documentation issues that buyers flag during review.
Getting your property in front of buyers who already understand commercial due diligence timelines, including survey requirements, reduces the friction that comes from educating a buyer mid-deal. FlowExit connects owners of small commercial and multifamily properties with serious investors who are familiar with the full closing process. If you are preparing to sell and want to reach buyers who will not be surprised by an ALTA survey request, start here.