Los Angeles County · Land Surveying
This is a regional guide to the San Gabriel Valley — the many-citied basin named for the 1771 mission, running from Pasadena's Craftsman blocks to the foothill towns and the industrial south. Each city has its own page; this one helps you navigate the valley.
A regional guide for a many-citied valley — name your city and we will take you straight to the right scope. Call (213) 787-3342 to talk it through.
The San Gabriel Valley holds more incorporated cities than most counties: Pasadena and its historic neighbors, the mission-rooted core around San Gabriel and Alhambra, foothill towns from Monrovia to Glendora, the postwar heartland of West Covina and El Monte, and the industrial south around Industry and La Puente. We maintain a dedicated page for every one of them.
This regional page is the map to those pages. Use it when your parcel sits in an unincorporated valley pocket, when a project spans city lines, or when you are simply finding your bearings. For city-level records, terrain, and specifics, your community's own page — linked throughout — carries the depth.
Valley-wide situations that reach us through this page:
The valley's records span the county's full range: mission- and rancho-descended chains in the old core, 1880s townsites in Pasadena, Monrovia, and Azusa, citrus-era subdivisions everywhere, postwar tracts across the flats, and modern hillside communities in the foothills and eastern hills. Every city page describes its own mix; the county record underlies them all.
Working valley-wide means matching method to place — deep-chain research in the old towns, efficient tract verification in the postwar belt, terrain mapping against the foothills — and knowing the jurisdictional map: which city's counter, or the county's, reviews each project. That routing is exactly what this page and our city pages exist to make easy.
Six services cover the region's spread — the same disciplines every city page details, applied valley-wide:
A regional guide — the valley's cities each have dedicated pages with community-level records and terrain detail, and this page routes you among them. Think of it as the valley's table of contents with a phone number attached.
The one matching your parcel's city — Alhambra's page for Alhambra lots, West Covina's for West Covina, and so on through the valley's roster below and on our county hub. If your parcel sits in an unincorporated pocket, call us and this page's guidance applies directly.
That mix is our daily work — deep-chain research in the old towns and efficient modern retracement in the tracts are the same discipline at different depths. Every valley city page describes how its own record era shapes the work.
Los Angeles County's — its planning and building departments review projects on unincorporated land, while the records remain county records like everywhere else. We prepare deliverables for county process routinely; the pocket addresses just skip the city counter.
It changes scope, which drives cost: a compact postwar lot is a tighter effort than a foothill acreage or a mission-era chain. Each city page describes its typical patterns, and a quote pins the number to your parcel's actual record and terrain.
These get regional questions to the right answer:
We route each parcel to its governing records and jurisdiction, then scope as its city page describes. The general sequence is on our how it works page.
We serve property throughout San Gabriel Valley and across Los Angeles County — request a survey quote for any parcel in the area.
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 (213) 787-3342 with the community and the parcel, and Southern California Land Surveyors will route you to the right page — and the right scope.