Start With What You Know
Finding your property lines in Texas starts with understanding what kind of property you have. Most Texas urban and suburban lots are in recorded subdivisions with plats on file at the county clerk. Rural properties, on the other hand, are often described in metes and bounds tied to original Spanish or Republic of Texas land grants, and their boundaries can be much harder to locate without professional help.
Step 1: Look Up Your Property at the County Appraisal District
Every Texas county has a central appraisal district (CAD) that maintains property records for tax purposes. The CAD website is the fastest free resource for viewing your parcel boundaries:
- Search for "[your county] central appraisal district" or "[your county] CAD" in any browser.
- Use the property search tool to find your parcel by address or owner name.
- Most CAD sites include a GIS map or parcel viewer showing your lot boundaries overlaid on aerial imagery.
Examples of Texas CAD websites:
- Harris County (Houston): hcad.org
- Dallas County: dallascad.org
- Bexar County (San Antonio): bexar.org
- Travis County (Austin): traviscad.org
- Tarrant County (Fort Worth): tad.org
CAD maps are approximate. They use digitized plat data and aerial imagery with margins of error. They are useful for understanding your lot's general shape and location, but they are not reliable enough to place a fence, file a permit, or resolve a dispute.
Step 2: Find the Recorded Plat at the County Clerk
If your home is in a subdivision, there is a recorded plat at the county clerk's office showing the original lot layout, dimensions, and easements. The plat gives you the legal dimensions of your lot and the framework a surveyor uses to locate your corners in the field.
How to find your plat:
- Your property's legal description, shown on your deed and on the CAD record, references the subdivision name, plat book, and page number.
- Search your county clerk's official records portal. Most Texas counties provide online access to recorded documents. Some counties use Texas-specific services like TXDOT County Records or county-specific portals.
- TexasFile (texasfile.com) provides access to land records for many Texas counties and can save time if your county's online system is limited.
Once you have the plat, you can see the original dimensions for your lot. The plat will not tell you exactly where those dimensions sit on the ground today, but it gives you the surveyor's starting point.
Step 3: Check the Texas General Land Office for Rural Properties
If your property is rural and traces back to an original Spanish, Mexican, or Republic of Texas land grant, the Texas General Land Office (GLO) is a significant research resource. The GLO maintains historical archives including original land grant records, field notes from the original surveyors who laid out the grants, and maps going back to the 1820s.
GLO archives are available at glo.texas.gov/history/archives. Licensed Texas RPLSs routinely consult GLO records when surveying rural properties, particularly those in South and Central Texas where Spanish-era land grants are common.
As a property owner, you can search the GLO records to understand the historical basis for your property's legal description. Interpreting those records and translating them to current GPS-based coordinates requires professional expertise.
Step 4: Look for Existing Corner Markers on Your Property
Texas property corners are typically marked with iron rods or pins driven into the ground at each corner. They often have aluminum or plastic caps stamped with the surveyor's license number. After years of landscaping, construction, and foot traffic, these markers can end up buried under soil, grass, or concrete.
How to locate them:
- Check the corners of your lot where you expect the boundary to change direction. This is often at the back corners and where your lot line meets the street right-of-way.
- Look at where adjacent fences meet or end. They often, though not always, follow property lines.
- An inexpensive metal detector can help locate buried iron pins below the surface.
- Check your prior survey if you have one. It shows the locations of monuments found or set during that survey.
Finding a marker yourself does not certify its accuracy. Only a licensed Texas RPLS can legally confirm, reset, or certify a survey monument.
Step 5: Review Your Closing Documents for a Prior Survey
Most Texas homes sold through a title company have a survey in the closing package. Your title company or closing attorney should have a copy. If you do not have your closing documents, the title company that handled your purchase may still have the file.
A prior survey tells you:
- The certified dimensions of the lot as of the survey date
- Where corner markers were found or set
- Any easements, encroachments, or boundary issues noted at the time
If no changes have been made since the survey, you may be able to use it with a T-47 affidavit for a sale. For fence placement or permit purposes, confirm with the surveyor whether the existing corner markers are still in place before relying on the prior survey for field layout.
Texas-Specific Resources Summary
- County Appraisal District: Start here for parcel viewing and property information. Free, available for every Texas county.
- County Clerk Official Records: Plats, deeds, easements, and recorded documents. Most accessible online or through TexasFile.
- TexasFile (texasfile.com): Paid service for convenient access to recorded land records across many Texas counties.
- Texas GLO Archives (glo.texas.gov): Historical land grant records and original survey field notes for rural Texas properties.
- TCEQ GIS Viewer: Texas Commission on Environmental Quality GIS tools can show environmental easements, water rights, and regulated areas affecting some Texas properties.
When You Need a Licensed Texas RPLS
Online tools, plat records, and corner markers give you context, but there are situations where only a licensed Texas RPLS can give you a defensible answer:
- You are placing a fence, shed, or structure near the property line.
- You are in a boundary dispute with a neighbor.
- You are applying for a building permit requiring certified boundary information.
- You are buying or selling property and the transaction requires a survey.
- You cannot locate corner markers or they appear to have been moved.
- Your property has a metes and bounds legal description without a recorded subdivision plat.
Texas law requires that all official survey plats and certifications be prepared and signed by a licensed RPLS. Verify a surveyor's license at txls.texas.gov before hiring.
Find licensed Texas RPLSs in your area through the directory. Search by county, compare listings, and contact multiple surveyors to get an accurate quote for your property.