Verification of a structure's setback from property lines is required during construction when the structure (i.e., new, addition, etc.,) is located up to or within 1 foot of the minimum required setback for conventionally-zoned properties (R-1, R-A, A-2, etc.), and when the structure is located within 5 feet of a property line for planned-district zoned properties (RSP, RMP, ARP, etc.). Verification of setbacks can occur by two methods:
Surveyor Verification:
The surveyor/engineer shall conduct a survey of the front, side, and rear property lines, as well as, the installed project foundation forms. The surveyor or engineer would then verify that the proposed project foundation complies with the approved setback distances from adjacent property lines as shown on the approved building permit plans. The project land surveyor or civil engineer would submit the certification in accordance with "Building Setback Certification" below.
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County Inspector Verification:
The surveyor/engineer shall conduct a survey of the front, side, and rear property lines and install property line survey hubs with connecting colored line in locations that can be readily used by the County Building Inspection staff to verify building setbacks prior to approval of the foundation inspection. If new survey hubs are installed, the project land surveyor or civil engineer must submit written confirmation that the staking of property lines has been properly completed and submit the certification in accordance with #1.A shown on this form. The requirement for new survey hubs may be waived if proper survey hubs already exist at the project site and can be used to definitively measure building setbacks. It is recommended that the surveyor or civil engineer set the required setback and/or property lines with clearly marked stakes or colored line. The project land surveyor or civil engineer would submit the certification in accordance with #1.B shown on this form. The applicant must then call the Building and Safety Division’s general phone line (415-473-6550) for a “manual inspection request” in order to place the inspection into the system.
Property Line Certification
The following certification formats shall be submitted by the project land surveyor or civil engineer to document compliance with each verification requirement. All certifications shall be submitted on the surveyor/engineer's letterhead and wet stamped.
1A. For construction on lots where existing property line survey hubs are not clearly evident, use the following certification:
On __(date)__, I installed new property line survey hubs for ___(address)___ and have physically delineated the property line(s) for purposes of allowing the Building and Safety Inspection staff to verify building setbacks in the field. Attached is the "Corner Record" identifying the corner hubs and tags that will be filed with the County Surveyor.
1B. For construction on lots where existing property line survey hubs are existing and evident, use the following certification:
On __(date)__, I surveyed the property line(s) for ___(address)___, and using existing survey hubs, I have physically delineated the property line(s) for purposes of allowing the Building and Safety Inspection staff to verify building setbacks in the field. Therefore, I am requesting that the requirement for new survey hubs be waived.
Building Setback Certification
On __(date)__, I measured the following setbacks for the structure located at ___(address)___ and determined that the structure meets or exceeds the minimum setbacks that are approved on the Building Permit plans.
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Field-verified Setback |
Setback on Approved Plans |
Setback to Front Property Line: |
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Setback to Left Property Line: |
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Setback to Right Property Line: |
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Setback to Rear Property Line: |
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