zoneoptics
Portola Valley, California · District

MF-4

ResidentialAll Portola Valley districts0

Dimensional standards

MF-4 lot requirementsSTREETFront 30 ftRear 30 ftSide 30 ftMin width 120 ftMAX HEIGHT16 ftMAX FAR2MAX DENSITY2 du/ac
Plan view of the district’s stated lot requirements. Solid line: the property line. Dashed: the setback lines the ordinance imposes; a building must stay inside the tinted envelope. Drawn from the figures extracted below — illustrative, not a survey.

Lot

Minimum lot widthLot widthHow wide a lot must be, usually measured at the front setback line.
120 ft

Density

Maximum density
2 du/acredu/acreDwelling units per acre — the number of homes allowed on each acre of land.

SetbacksSetbackThe distance a building must be held back from a lot line.

FrontSetbackThe distance a building must be held back from a lot line.
30 ft
RearSetbackThe distance a building must be held back from a lot line.
30 ft
SideSetbackThe distance a building must be held back from a lot line.
30 ft

Height & bulk

Maximum heightMaximum heightThe tallest a building may be, given in feet, in storeys, or both — whichever binds first.
16 ft
Maximum floor area ratioFloor area ratio (FAR)Total floor area divided by lot area — an FAR of 2.0 permits 20,000 sq ft of floor on a 10,000 sq ft lot.
2

Parking

Minimum spacesMinimum parkingThe number of off-street spaces a development must provide before it may open.
15

From the ordinance

max density du per acre: 2.0; min lot width: 120.0; max far: 2.0; max height: 16.0; front setback: 30.0; side setback: 30.0; rear setback: 30.0; min parking spaces: 15.0
Table 18.15.050: Development standards—Multi-family residential zoning districts