Cadastral and Subdivision Platting, Easements, and Rights-of-Way
What this domain tests
This domain covers plat preparation and the New Mexico Subdivision Act (NMSA Chapter 47, Article 6), plus easement and right-of-way law as it affects boundary and title work.
Core rules
- The New Mexico Subdivision Act sets the statewide framework; counties adopt subdivision regulations that classify subdivisions and specify preliminary and final plat content, dedications, and improvements.
- A plat is a recorded instrument: it must carry the surveyor's certificate, seal, signature, date, and license number, plus owner dedications and approvals. Plat notes can create or limit rights.
- Easements may be express, implied, or prescriptive; an easement is a right of use, not ownership of the fee. Right-of-way may be held in fee or as an easement, and the two are not interchangeable.
- A boundary along a dedicated street normally runs to the right-of-way line, not the pavement edge, unless the record says otherwise.
- Vacation and replat require the statutory procedure, and prior plats must be researched before a new one is recorded.
Worked example
A 30-ft-wide utility easement crosses a rectangular lot 660 ft deep. Area = 30 × 660 = 19,800 sq ft; 19,800/43,560 = 0.455 acre. If the easement is described as "the east 15 feet of the west 30 feet," sketch it before computing - the wording, not the area, defines the strip. Reasoning: compute area only after the geometry is fixed, because the recorded description controls.
Traps that cost marks
- Treating a right-of-way line as the property line when the fee extends to the centerline.
- Assuming a road is public because it is paved.
- Overlooking blanket easements or unrecorded grants.
- Recording a plat without the required approvals or dedications.
- Missing a prior vacation or replat that changed the lot lines.