Answer by condition
What the parcel's condition decides in San Marino.
Two parcels in San Marino can follow different paths because the mapped conditions differ. Below is each condition verified for this city, with the question, the answer, the verification step and the official source.
San Marino sits about 9 miles north-east of Downtown Los Angeles, in the San Gabriel Valley cluster. The reviewing jurisdiction is the City of San Marino.
Verified condition
Historic resources and districts
A designated resource or a contributing property in a district changes what can be demolished, how additions read from the street, which materials are acceptable and what documentation the file needs.
What changes if the property is historic?
Demolition, street-facing additions, window and material choices and the documentation in the file. Confirm designation or contributor status and the applicable review before committing to an exterior design.
How to verify it
Check whether the property is designated or a district contributor, which review applies to exterior change and demolition, and what documentation is expected.
Verified condition
Mature canopy
Mature street and yard trees affect footprint, staging, root protection during excavation and sometimes the driveway location, and removal or encroachment generally needs a permit.
Do existing trees limit the footprint?
They can. Protection usually covers the root zone, not just the trunk, so map trees on the survey and confirm the local permit trigger for removal, pruning and excavation nearby.
How to verify it
Map protected trees on the survey with trunk and drip line, and confirm the local permit trigger for removal, pruning and root-zone work.
Baseline framework
What applies to every parcel, condition or not.
- StateState accessory dwelling unit lawCal. Gov. Code § 66310 et seq.
- StateLocal ADU ordinance standardsCal. Gov. Code § 66314
- StateJunior accessory dwelling unitsCal. Gov. Code § 66333
- StateTwo-unit residential development (SB 9)Cal. Gov. Code § 65852.21
- StateUrban lot splitCal. Gov. Code § 66411.7
- StateHCD accessory dwelling unit guidanceCalifornia HCD
- StateCalifornia Building Standards CodeCalifornia Code of Regulations, Title 24
- StateCALGreen building standardsTitle 24, Part 11 (CALGreen)
- StateBuilding energy efficiency standardsTitle 24, Part 6 (Energy Code)
- StateContractor licence verificationCal. Bus. & Prof. Code, CSLB
- CountyCounty parcel and assessment recordsLos Angeles County Assessor