Los Angeles County · Land Surveying
Walnut incorporated in 1959 to guard its rural-agricultural heritage, and the master-planned city that grew across its rolling hills kept the promise: greenbelts, generous lots, horse-friendly streets, and terrain that makes measurement part of every project.
Rolling lot, greenbelt edge, or gate project — name the tract and we will scope from its record. Call (213) 787-3342 to talk it through.
Nearly nine square miles of eastern San Gabriel Valley hills, planned deliberately: Walnut's subdivisions rolled across the terrain with greenbelts threaded between them, estate-scale lots on the slopes, and a council-manager government founded specifically to regulate growth. Mt. San Antonio College anchors the city's institutional edge, and the rural inheritance survives in horse-keeping streets and open ridgelines.
Hillside tracts generate hillside questions. Lots roll with the grade, usable areas are terrain facts rather than deed facts, slope and drainage easements encumber the banks, and greenbelt edges run behind fences that may or may not match them. Add the estate-lot standards — gates, walls, landscaping at scale — and Walnut's survey docket is lines and terrain, always together.
Six services carry the hillside-estate docket — lines, terrain, and the recorded edges that shape projects:
The master-planned records are a gift: consistent tract maps, modern monumentation, geometry that closes. Retracement is efficient, which leaves the effort where it belongs — on the terrain. Lines crossing graded banks, corners at slope tops and toes, and lots whose recorded area far exceeds their flat area are the working realities, and contour mapping joins most scopes.
The recorded encumbrances carry real weight: slope and drainage easements from the tracts' engineering, greenbelt and open-space edges, and equestrian allowances that follow specific streets. We plot the instruments against the boundary so fences, gates, and projects respect what the record actually says — which on planned hillsides is usually more specific than owners expect.
Tract-era records make these especially useful:
We pull the governing tract, confirm scope with you, then field-verify lines and terrain together. The flow is on our how it works page.
Walnut projects that involve a surveyor typically include:
We serve property throughout Walnut and across Los Angeles County — request a survey quote for any parcel in the area.
Usually the city, an association, or an open-space entity — the tract records say which, and they draw the edge precisely. The fence at the top of your slope is rarely on that recorded line. We retrace and mark it so improvements stay on your side and the greenbelt stays whole.
That is a terrain question the deed cannot answer — recorded area includes the slopes, and the flat, usable portion is what contour mapping reveals. We map the boundary and the topography together, and the resulting drawing shows exactly what ground the lot really offers a project.
It adds the facilities to the picture: corrals, barns, and arenas sited relative to lines and setbacks, and sometimes trail or access considerations along the street. The boundary work is standard; the equestrian layer just means more improvements worth locating while the crew is there.
Only pleasantly — campus lands carry long, well-kept record chains, which makes the adjoining research reliable. Your line against an institution retraces exactly like any other, from the record and the evidence, and usually with better documents on the far side than a private neighbor would have.
Its exact recorded width and position — flag strips are precisely defined and frequently mis-fenced, and a driveway that wanders a foot onto a neighbor becomes a problem at sale time. We stake the strip's true lines so paving, gates, and walls sit where the record says they may.
Survey scope and deliverables depend on title records, site conditions, and what your project requires. Call (213) 787-3342 to discuss the property and the survey you need.
Call Southern California Land Surveyors at (213) 787-3342 with the tract and the plan, and we will scope lines, terrain, and recorded edges together.