Introduction to the Lot and Block System
The Lot and Block Survey System, also known as the Recorded Plat System, is the most common method used to describe residential and commercial properties in urban and suburban areas. For title insurance professionals, understanding this system is critical because it simplifies complex land measurements into a format that is easily searchable and recordable in public land records.
Unlike the Metes and Bounds system, which relies on physical landmarks and compass bearings, the Lot and Block system refers to a specific map called a subdivision plat. This plat is created by a licensed surveyor and must be approved by local governing bodies before it is officially recorded in the county's land records. Once recorded, the plat becomes the legal reference point for all individual parcels within that subdivision. For more foundational knowledge, see our complete Title Insurance exam guide.
Comparison of Survey Systems
| Feature | Metes and Bounds | Lot and Block |
|---|---|---|
| Primary Use | Rural or irregularly shaped land | Urban/suburban subdivisions |
| Reference Point | Point of Beginning (POB) & monuments | Recorded Plat/Map |
| Description Complexity | High (requires angles and distances) | Low (uses lot and block numbers) |
| Pre-requisite | Stand-alone survey | Must be based on a prior survey |
The Platting Process and Legal Validity
The creation of a Lot and Block description begins with a developer or landowner who wishes to divide a large tract of land into smaller parcels. This process involves several regulatory and technical steps that are vital for the title insurer to verify:
- Preliminary Survey: A surveyor performs a Metes and Bounds or Rectangular Survey of the entire parent tract to establish outer boundaries.
- Subdivision Design: The land is divided into blocks (groups of lots separated by streets) and individual lots.
- Governmental Approval: Local planning commissions review the plat for compliance with zoning, easements, and infrastructure requirements.
- Recording: The final plat is filed in the county recorder’s office. It is assigned a specific location in the records, typically identified by a Plat Book number and a Page number.
Once the plat is recorded, the legal description for a specific home no longer needs to detail every angle and distance. Instead, it can simply refer to 'Lot 5, Block B of the Sunny Acres Subdivision, as recorded in Plat Book 12, Page 45.'
Essential Components of a Legal Description
Title Insurance Considerations and Risk Management
In the title insurance industry, the legal description is the most important part of the policy. If the legal description is incorrect, the policy may not cover the intended property, leading to significant liability. When working with Lot and Block descriptions, title officers must watch for several common issues:
- Scrivener's Errors: Simple typos, such as writing 'Lot 6' instead of 'Lot 9', can create a cloud on the title that requires a corrective deed.
- Vacated Plats: Sometimes, a subdivision plan is abandoned or 'vacated.' Title examiners must ensure the plat is still legally active.
- Easements and Setbacks: The recorded plat often contains visual representations of utility easements or building setbacks that are not mentioned in the text of the deed but are legally binding.
If you are preparing for your licensing test, you should practice identifying these components by reviewing practice Title Insurance questions.
Exam Tip: The 'Parent' Survey