Marin County Unincorporated, California · General provision
22.42.020 and 22.42.025
Extracted standards
7 individual requirements pulled out of this section’s prose, each with the sentence it came from.
Fencing & walls
- Maximum fence heightMaximum heightThe tallest a building may be, given in feet, in storeys, or both — whichever binds first. exempt from Design Review6 ft
Fences and walls that are six feet or less in height, as measured from the finished grade
- Maximum retaining wall heightMaximum heightThe tallest a building may be, given in feet, in storeys, or both — whichever binds first. exempt from Design Review4 ft
Retaining walls that are four feet or less in height, as measured from the finished grade
Lighting
- Maximum outdoor lighting heightMaximum heightThe tallest a building may be, given in feet, in storeys, or both — whichever binds first. exempt from Design Review15 ft
Outdoor lighting that is 15 feet or less in height and is not part of a larger project requiring Design Review
Other
- AccessoryAccessory useA secondary activity customarily incidental to the main use of the lot — a garage, a home office. structure size requiring Design Review500 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.
New construction of an accessory structure that exceeds 500 square feet in floor area
- Additions requiring Design Review500 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.
Additions or alterations to an existing principal structure that increase the floor area by 500 square feet or more
- GradingGrading (cut & fill)Reshaping land by removing earth (cut) or adding it (fill), often capped by volume. volume requiring Design Review500 cubic yardscubic yard (cy)A unit of earth volume used in grading limits — roughly one dump-truck scoop.
New or expanded grading that exceeds 500 cubic yards
- Parking area size requiring Design Review5,000 sqftsq ftSquare feet. An acre is 43,560 sq ft; a typical suburban lot is 7,000–10,000.
New parking areas or expansion of existing parking areas that exceed 5,000 square feet
From the ordinance
Design Review required for new construction of principal structure, additions ≥500 sq ft, accessory >500 sq ft, parking >5,000 sq ft, outdoor storage >5,000 sq ft, grading >500 cu yd. Exemptions: fences ≤6 ft, retaining walls ≤4 ft, outdoor lighting ≤15 ft.