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BUILDING DESIGN CRITERIA
To display the building design criteria (ground snow, wind speed, seismic design category, fire severity, flood and climate zones) for a specific parcel:
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California Building Codes (CBC)  effective January 1, 2017

SEISMIC ZONE ** To be determined using the 2016 CBC section 1613 earthquake loads. Except: Effective June 10, 2016, parcels in Tahoe within Alquist-Priolo Earthquake Fault Zones require a Geologic Report.
BASIC WIND
SPEED
**
(3 second gust)

Special Wind
Region Map
[.pdf, 4.39 MB]

El Dorado County’s minimum wind speed is 85 MPH (38m/s) except in the Special Wind Region (eastern area of the county) as shown on figure 1609 of the 2007 CBC.  The special Wind Region minimum wind speed is 100 MPH. 

SOIL BEARING **

Seismic Design
Category Map

[.pdf, 8.33 MB]

  

Commercial Project in the County
All commercial projects within the county require a Soils Report by a California licensed soils engineer as part of the permit application submittal. The grading plans must be prepared by a civil engineer. Additional grading information.
Tahoe Basin Single Family Dwelling
General soil conditions default in the Tahoe Basin area is 1500 #'s per square foot.   The soil bearing pressure can be increased to 2000#'s per sq. ft. with a site visit and analysis by the project engineer.  Any design soil bearing criteria >2000#'s per sq. ft. requires a soils report supporting the values used in the design.
West Slope Single Family Dwelling
General soil conditions default exclusive of the Tahoe Basin is 1000 #'s per square foot.   The soil bearing pressure can be increased to 1500#'s per sq.ft. with a site visit and analysis by the project engineer.  Any design soil bearing criteria >1500#'s per sq. ft. requires a soils report supporting the values used in the design.

CONVENTIONAL
LIGHT FRAME
CONSTRUCTION
2016 California Building Code, section 2308, requirements.
(Note: not applicable if ground snow is greater than 50#’s per sq. ft.)
GROUND SNOW
LOAD
**

All of El Dorado County is considered a snow county with snow loads varying from 20#'s per square foot to over 300#'s per square foot depending on the site location within the county.

Note: the absolute minimum roof snow load is 20 lbs/sq.ft. 

FROST LINE Parts of El Dorado County may have snow coverage and freezing temperatures in the mountain regions during the winter season. Currently the county does not experience any frost deeper than the foundation requirement of a minimum 12 inches into undisturbed soil for the west slope or a minimum 18 inches in the Tahoe Basin.
FLOOD ZONES Parts of El Dorado County have flood zones as outlined by the FEMA flood insurance rate maps (FIRMs) A, A1 - A5, B, C, and D.
A request can be made to Planning Services for the flood zone of your construction site. There are four floodways located in the county. One floodway is located in the El Dorado Hills area and the remaining three are in the Tahoe Basin. All construction is prohibited within a floodway. Flood Zone Definitions
CLIMATE ZONES
Climate Zone 12
Climate Zone 12 is primarily a "valley cooling" energy loss calculation due to energy used to cool structures.  All  structures west of a line drawn from Greenwood, through the City of Placerville to Mt Aukum will be in climate zone 12.
Climate Zone 16
Climate Zone 16 is primarily a "mountain heating" energy loss calculation due to energy used to heat structures. All of the Tahoe Basin is considered Climate Zone 16.   Most  structures east of a line drawn from Greenwood, through the City of Placerville to Mt Aukum will be in climate zone 16. 
FIRE SAFE
REGULATIONS
The State of California Board of Forestry established firesafe measures to protect homes in the wildland fire areas. These measures shall provide for emergency access; signing and building numbering; private water supply reserves for emergency fire use; and vegetation modification.  Firesafe Regulations     Driveway Slope.  Contact you local Fire District for any additional information and regulations concerning your parcel
FIRE HAZARD
SEVERITY ZONE
As of January 1, 2008 building codes require additional building modification to meet requirements of Wildland-Urban Interface Building Standards.
FIRE SPRINKLER
REQUIREMENTS
Permit applications after January 1, 2011 will require fire sprinklers installed in all Single Family Dwelling and attached garages.
ZONING
SETBACK
If the lot/plot is one acre or greater, the minimum setbacks to the property line must be thirty feet to meet the California State Firesafe regulations. (see above)  All other zoning setback requirements are established by Planning Services and must be indicated on the plan set. Measuring Building Setbacks
RADON GAS Radon gas may be associated with new construction.
WATER
DISTRICTS
If your project is within a water district and not on a well, contact the district for additional information and requirements.
GENERAL PLAN
REQUIREMENTS

Requirement of the General Plan may affect your building design because of location on the property.  See the General Plan Residential Checklist for residential parcel specific information. See the General Plan Non-Residential Checklist for non-residential and multi-family and commercial parcel specific information.

Buildings not designed by a State of California licensed architect or engineer must meet the requirements of a conventional light frame and brace wall construction design as outlined in the 2016 California Building Codes, Part 2, Vol. 2 § 2308 or the 2016 California Residential Code.

** If a California licensed architect or engineer is required they shall verify the site conditions affecting the building design per the 2016 California Building Code and the 2016 California Residential Code.