Summary:
New York Law Requires Land Surveys for Most Construction Projects
This isn’t a suggestion—it’s the law. New York requires property owners to hire a licensed land surveyor before construction begins on most projects. Whether you’re building a deck, installing a pool, or adding a room, you’ll need a survey to get your building permit approved.
The state takes this seriously because construction mistakes are expensive to fix. When someone builds on the wrong property or violates setback requirements, it creates legal nightmares that can take years to resolve. Your local building department won’t issue permits without proper surveying documentation.
What Projects Actually Require a Survey in New York
Almost any permanent structure or significant alteration needs surveying. This includes pools, decks, sheds, fences, driveways, and home additions. Even some landscaping projects that alter drainage or grading require surveys.
The rule of thumb: if you need a building permit, you probably need a survey. Your contractor might tell you it’s optional, but they’re not the ones who’ll face fines or legal action if something goes wrong. Building departments in Suffolk and Nassau counties are particularly strict about this requirement.
Don’t assume your property lines are where you think they are. That fence your neighbor installed five years ago? It might actually be three feet onto your property. Or worse, your planned deck might extend onto theirs. These situations create expensive legal disputes that proper surveying prevents.
The average cost of resolving a boundary dispute through litigation can reach tens of thousands of dollars. Compare that to the typical survey cost of $631 to $821 in New York, and the math is obvious. Smart homeowners invest in clarity upfront rather than lawyers later.
The Hidden Costs of Skipping a Survey
Almost any permanent structure or significant alteration needs surveying. This includes pools, decks, sheds, fences, driveways, and home additions. Even some landscaping projects that alter drainage or grading require surveys.
The rule of thumb: if you need a building permit, you probably need a survey. Your contractor might tell you it’s optional, but they’re not the ones who’ll face fines or legal action if something goes wrong. Building departments in Suffolk and Nassau counties are particularly strict about this requirement.
Don’t assume your property lines are where you think they are. That fence your neighbor installed five years ago? It might actually be three feet onto your property. Or worse, your planned deck might extend onto theirs. These situations create expensive legal disputes that proper surveying prevents.
The average cost of resolving a boundary dispute through litigation can reach tens of thousands of dollars. Compare that to the typical survey cost of $631 to $821 in New York, and the math is obvious. Smart homeowners invest in clarity upfront rather than lawyers later.
Mortgage Lenders and Title Companies Require Accurate Surveys
If you’re refinancing or getting a home equity loan to fund your project, your lender will likely require an updated survey. Banks need to verify that improvements won’t create title issues or encroachment problems that could affect the property’s value.
Title companies use surveys to issue insurance policies. Without proper surveying, you might not be able to get title insurance, which most lenders require. This creates a chain reaction that can derail your entire financing plan.
ALTA Surveys for Major Projects and Refinancing
For significant renovations or commercial-grade projects, lenders often require ALTA (American Land Title Association) surveys. These comprehensive surveys cost more—typically $2,000 to $3,000—but provide detailed information about easements, encroachments, and property improvements.
ALTA surveys take longer to complete but give lenders confidence in the property’s condition and boundaries. If your project involves substantial structural changes or additions, expect your lender to request this level of detail.
The investment pays off in smoother financing approval and fewer surprises during construction. When lenders have confidence in your property boundaries, they’re more likely to approve loans quickly and at better rates.
Many homeowners discover easements they didn’t know existed during the ALTA survey process. Utility easements, drainage rights, or access agreements can significantly impact your construction plans. Better to know about these restrictions before you design your project than after you’ve started building.
Timeline Considerations for Survey-Dependent Projects
Professional land surveys typically take five to ten business days to complete, but this timeline can extend based on property complexity and weather conditions. Factor this into your project planning, especially during busy construction seasons.
Winter surveys take longer due to frozen ground and difficult access conditions. Spring and summer are peak times for surveying, so book early to avoid delays. Some surveyors offer rush services for urgent projects, but expect to pay premium rates.
The research phase often takes as long as the fieldwork. Surveyors need to review historical records, previous surveys, and legal documents before visiting your property. Properties with complex ownership histories or multiple previous surveys require more research time.
Don’t schedule your contractor to start immediately after the surveyor finishes. Leave buffer time for permit applications, plan revisions, and any issues the survey might reveal. Rushing this process often leads to costly mistakes and project delays.
Protect Your Investment with Professional Land Surveying
Your home represents your largest financial investment. Protecting that investment means understanding exactly what you own and where your boundaries lie. Professional surveying isn’t just about legal compliance—it’s about making informed decisions that preserve and enhance your property value.
The cost of surveying is minimal compared to the potential costs of getting it wrong. Boundary disputes, permit rejections, and construction delays can quickly escalate into five-figure problems. Smart homeowners invest in clarity upfront.
When you’re ready to move forward with your project, we bring over 20 years of experience serving Suffolk and Nassau counties. Our licensed professionals understand local requirements and deliver the accurate, timely results your project needs.

