What is a plat?
A plat is a scaled map that shows how a tract of land is divided. It typically shows lot and block numbers, lot dimensions, street rights-of-way, easements, dedications and the legal description of the overall tract. Once the local authority approves it and it is recorded with the county or equivalent office, the plat becomes a public legal document. Later deeds can refer to it, for example "Lot 12, Block 3 of Oak Ridge Subdivision."
Common plat types include:
- Subdivision plats that create new lots and streets
- Replats that change existing lot lines
- Condominium plats that show units and common areas
- Minor or short plats for small divisions, where local rules allow
What is a survey drawing?
"Survey drawing" is a broad term for the drafted result of a field survey. It documents what is on and around a specific parcel at the time of the survey. Examples include:
- Boundary surveys: property lines, found and set monuments, and encroachments
- Topographic surveys: elevations, contours and visible features
- ALTA/NSPS surveys: detailed surveys prepared to a national standard, usually for commercial transactions
- As-built surveys: constructed improvements compared with the design
A survey drawing is normally prepared for a client such as a landowner, lender, title company or design team. It is signed and sealed by a licensed surveyor. It is not necessarily recorded publicly, and it does not create new lots.
Key differences at a glance
| Feature | Plat | Survey drawing |
|---|---|---|
| Main purpose | Create or define lots, streets and easements | Document existing conditions of a parcel |
| Scope | Whole subdivision or tract | Usually one parcel or site |
| Legal effect | Recorded, public, referenced in deeds | Professional work product for a client |
| Approval | Local review and approval, then recording | Surveyor's certification; no subdivision approval |
| Typical content | Lots, blocks, rights-of-way, easements, dedications | Boundaries, monuments, improvements, topography, encroachments |
| Common users | Developers, municipalities, civil engineers | Owners, lenders, title companies, designers |
The table is a general guide. Exact requirements for content, certification and recording vary by state and local jurisdiction.
How the two relate
The two documents are closely connected. A plat is built on survey work: the surveyor researches records, locates evidence and measures the boundary, then drafts the plat from that data. Later, a boundary survey of a single lot in that subdivision will usually reference the recorded plat for bearings, distances and easements.
A useful way to think about it:
- The plat says how the land is legally divided.
- The survey drawing shows where that division and the physical improvements sit on the ground today.
If a survey finds a fence or building over a plat easement, the survey drawing is what shows it.
When you need each one
You typically need a plat when:
- Subdividing a tract into lots
- Adjusting lot lines through a replat
- Dedicating streets or easements
- Creating condominium units
You typically need a survey drawing when:
- Buying, selling or refinancing property
- Confirming boundaries before building a fence or addition
- Planning site design with topography
- Meeting title or lender requirements (such as ALTA/NSPS)
- Verifying construction against plans (as-built)
Local ordinances, title companies and lenders decide the exact requirements, so confirm them with the licensed surveyor and the relevant authority.
Drafting considerations
Both documents need careful CAD work, but the emphasis differs.
- Plats require consistent bearings and distances, closed lot geometry, correct curve data, a clear legend and notes, and layout that meets the local recording office's format rules.
- Survey drawings require accurate linework from field data, clear symbology, correct line types for boundaries and easements, and a presentation that matches the surveyor's notes and any standards in play.
In both cases, the licensed surveyor remains responsible for review, certification and sealing. Drafters prepare the drawing; they do not replace professional judgment.
How Land Drafters helps
Land Drafters, LLC is a US-based company near Orlando, Florida, that provides outsourced land survey CAD drafting to surveying and civil engineering firms in all 50 US states, Canada, the UK and Australia. Services include subdivision plats, boundary, topographic, ALTA/NSPS and as-built drawings, plus Civil 3D surfaces and point cloud/LiDAR to CAD. The team works in AutoCAD, Civil 3D, Carlson, MicroStation and Revit.
- Typical turnaround is 24-72 hours.
- Pricing is hourly or per drawing; see /pricing.
- A free trial drawing is available, and an NDA can be provided.
To send a project or ask a question, visit /get-quote or contact Land Drafters on WhatsApp.