How Is a Property Survey Done? Phases, Timeline, and Plat

A property survey is done in three phases: the surveyor researches your title records, measures the land on site with GPS and other instruments, and then processes the data in the office to produce a sealed plat that serves as the legal record of your boundaries. For a straightforward residential lot, the whole process typically runs four to eight weeks from the day you sign a proposal to the day the plat lands in your inbox. Commercial and ALTA/NSPS jobs run longer, often 30 to 60 days.

Each phase feeds the next, and the quality of the final plat depends on all three being done carefully. Cutting corners in research shows up as errors in the field; sloppy fieldwork shows up as unresolved discrepancies in the office.

The Three Phases of a Property Survey

Title Research

The surveyor starts at a desk, not in your yard. Using your deed, recorded plats, and any prior surveys on file with the county, they establish the legal description of your property and identify recorded easements, rights-of-way, and boundary agreements that could affect the outcome.

They also pull deeds for the neighboring parcels. Your boundary is also your neighbor’s boundary, and discrepancies between adjoining legal descriptions are one of the most common sources of trouble. On rural land with a long chain of title, or a parcel that has been subdivided multiple times, this phase alone can take several days.

Fieldwork

Next the surveyor visits the site and walks the property looking for existing boundary markers. These are usually iron rods, concrete monuments, or brass caps set during earlier surveys. Finding them isn’t always easy. Decades of landscaping, construction, and erosion can bury or shift markers that were once at the surface. When markers are missing, the surveyor calculates where they belong based on the legal description and measurements taken from adjacent control points, then sets new permanent markers, typically iron rods driven into the ground, so the corners are physically identifiable going forward.

The measurements themselves come from GPS/GNSS receivers and total stations, instruments that capture precise angles and distances using laser or infrared technology. The 2026 ALTA/NSPS standards, effective February 23, 2026, explicitly accommodate newer tools such as drones and LiDAR alongside traditional equipment. Those standards also add a requirement to document any evidence of possession or occupation along the perimeter, and to note verbal statements made by landowners or occupants during fieldwork, which strengthens the record if a dispute arises later.1National Society of Professional Surveyors. 2026 ALTA/NSPS Standards

Office Processing and the Plat

Back at the office, the surveyor reconciles the field measurements with the legal description, recorded plats, and neighboring surveys. Discrepancies between what’s on the ground and what the documents say are common on older properties, and resolving them requires professional judgment rather than a formula.

The output is the survey plat: a scaled map showing boundary lines labeled with bearings and distances, the footprint of every structure, easements, setback lines, and any encroachments. The surveyor seals and signs the plat, certifying its accuracy. That signed and sealed drawing is the legal record you rely on when you build, refinance, sell, or resolve a boundary dispute.

How Long the Process Takes

A boundary survey on a small, regularly shaped residential lot can be completed in one to two weeks under good conditions. More realistically, plan for four to eight weeks from signing the proposal to receiving the finished plat. Commercial ALTA surveys on larger or more complex properties commonly run 30 to 60 days.

Several things push a job toward the long end of that range:

  • Complicated title histories that require extensive research
  • Difficulty locating old boundary markers on the ground
  • Conflicting information between neighboring surveys or deed descriptions
  • Seasonal backlogs during peak real estate months

If you’re working against a closing deadline, tell the surveyor that date when you hire them. Most firms can prioritize time-sensitive work, though rush fees typically apply.

What You Get at the End

The finished product is the sealed plat plus the surveyor’s certification. It’s worth reading rather than filing away. The key components on the plat itself:

  • Boundary lines drawn with precise bearings and distances that define the legal perimeter
  • Symbols showing where physical markers sit at your corners, with notation for what was found or set
  • Shaded areas or dashed lines marking easements and rights-of-way
  • The footprint of every building, driveway, fence, and other improvement, with measured distances to the nearest boundary line
  • Any encroachments where a structure crosses a boundary line, in either direction
  • Setback lines showing where local zoning prohibits construction

The certification accompanies the plat and includes the legal description, the basis for the boundary determination, and a list of any discrepancies found during the work. Pay close attention to the discrepancy notes. Gaps between adjoining surveys, conflicting deed descriptions, and monuments that don’t match the recorded plat all appear there, and each one can affect your property rights or your ability to build.

What Can Slow or Complicate the Work

Terrain and vegetation matter more than people expect. Heavy tree cover, steep slopes, and dense undergrowth make it harder to sight between control points and harder to physically locate monuments. Irregularly shaped lots take longer than rectangular ones because there are more corners to establish and more bearings to compute.

Missing historical records are another common obstacle. If prior surveys aren’t on file with the county, the surveyor has to rebuild the boundary from the deed language and evidence in the field, which is slower and more expensive. Properties with a long chain of subdivision are especially prone to this because errors and ambiguities accumulate through each recorded transaction.

The scope of work also drives the timeline. A basic boundary survey handles most residential situations. An ALTA/NSPS land title survey covers boundary lines plus all improvements, easements, rights-of-way, utilities, and zoning setbacks, and the added research and detail take longer. If your lender or title company specifies an ALTA survey, expect a bigger job than a routine boundary check.

What to Do Before the Surveyor Starts

You can shorten the timeline and reduce your bill by preparing before the first site visit. Pull together your property deed, any previous surveys, and your title insurance policy or title commitment. Those documents contain the legal description of your property, the formal language that defines the boundaries by referencing recorded plats, metes and bounds measurements, or section-township-range coordinates. Handing that paperwork over at the start saves time during title research.

Be specific about why you need the survey. “I’m building a fence along the back line” produces different work than “I’m refinancing and my lender wants an ALTA survey.” The scope drives both cost and schedule, and a good surveyor will explain exactly what’s included before you sign a proposal.

Verify the surveyor’s license through your state’s professional licensing board, which typically maintains a searchable online database. Every state requires land surveyors to hold a professional license, and local experience matters: a surveyor who works your county regularly already knows the recording office, common title complications, and quirks in older legal descriptions.

Once the work is done, keep the plat with your deed and title policy. You’ll reference it any time real money or legal rights are on the line, and a current survey is the only reliable foundation for those decisions.