Santa Ana | Parking, Setbacks, Height

Santa Ana Parking, Setbacks, Height and Lot Coverage for Houses, Duplexes and Apartments

Four numbers decide how much building fits on a lot: the parking spaces it needs, the setbacks (the open yards a building must keep from each property line), the height limit, and lot coverage (the share of the lot that buildings may cover). Santa Ana sets them in Chapter 41 of the Municipal Code, Supplement 33 Update 1. Its parking rules are among the most demanding parts of the code, and state law now removes them near major transit. The Santa Ana overview sums up the guide.

Parking by Home Type

Source: Santa Ana Municipal Code, Chapter 41, Sections 41-1320 to 41-1325, 41-282, Table 41-194.3 and Tables UN1-5 and UN2-5, Supplement 33 Update 1.

Santa Ana counts parking by bedrooms. A house needs "Four (4) off-street parking spaces for up to five (5) bedrooms," and one more for each further bedroom, to eight spaces for nine or more (Section 41-1320). At least half must be in an enclosed garage; the rest "may be tandem spaces in a driveway." A stall in a one-car garage must be 12 by 20 feet, and each stall in a larger garage 10 by 20 feet.

Each home in a two-family or three-family dwelling needs "three (3) spaces plus one (1) additional space for each bedroom in excess of two (2) bedrooms," two of them in an enclosed garage (Section 41-1321). By VanPlex arithmetic, a duplex of two three-bedroom homes needs eight spaces, four of them in garages. Driveway spaces "may not obstruct access to parking spaces serving any other unit."

Apartments, called multiple-family dwellings in the code, count three layers (Section 41-1322). Each home needs "one (1) space in a garage or carport." The site then needs more spaces "not less than the number of bedrooms on the site," with a bachelor unit counted as one bedroom. Guest parking adds 25 percent of those two figures, "but in no case less than three (3) spaces." By VanPlex arithmetic, four two-bedroom apartments need 4 plus 8 spaces, plus 3 guest spaces, or 15. In R3, all but the guest spaces "must be covered and screened from neighboring properties" (Section 41-272.02).

Other rules in Article XV shape the parking area. Open stalls are at least 8 feet 6 inches by 18 feet, and an aisle serving 90 degree parking is 23 feet wide (Section 41-1303). A building of five or more apartments needs at least four bicycle spaces (Section 41-1307.1). An apartment owner may not charge residents for parking "separate and distinct from the rent" (Section 41-1308). Where a count is not a whole number, a fraction of 0.5 or more rounds up and a smaller one rounds down (Section 41-1309), except in the Transit Zoning Code, where "All fractions in the parking calculations shall be rounded up."

When State Law Removes the Parking

Government Code 65863.2, added by AB 2097, says "A public agency shall not impose or enforce any minimum automobile parking requirement on a residential, commercial, or other development project if the project is located within one-half mile of public transit." It defines public transit as "a major transit stop as defined in Section 21155 of the Public Resources Code," and the definition of public agency includes "charter cities." A city may keep minimums only by making written findings "within 30 days of the receipt of" a complete application, as the statute sets out. So a qualifying Santa Ana site near a major transit stop may be built with fewer spaces than Article XV asks.

Smaller projects have their own exemptions. An ADU needs no parking within one-half mile walking distance of public transit, in a historic district, inside existing space, near a car share vehicle, as a studio, or where on-street parking permits are required but not offered to its occupant (Table 41-194.3, note L). An SB 9 home needs no parking within one-half mile walking distance of a corridor with buses every 15 minutes at peak hours, a rail or bus rapid transit station, or within one block of a car share location (Sections 41-2109 and 41-2115). The ADUs and SB 9 page has the details.

Setbacks, Height and Coverage by District

Source: Santa Ana Municipal Code, Chapter 41, Sections 41-218 to 41-221, 41-233 to 41-238, 41-248 to 41-251, 41-277 to 41-281, 41-266, 41-269, 41-270, 41-296 to 41-301 and Tables UN1-2 and UN2-2.

In R1, the front yard "shall be equal to the prevailing front yard setback of the block," but "not less than twenty (20) feet" (Section 41-234). The prevailing setback comes from Section 41-603 (b): when 40 percent or more of the lots on a block are built on, the new front yard is at least the average of the existing ones, not counting buildings on the rear half of a lot. Older houses with side yards of at least 3 feet are not treated as nonconforming for that reason alone (Section 41-235 (c)). In R2, the rear yard may drop from 15 to 10 feet when the lot keeps at least 1,200 square feet of open space outside the side yards (Section 41-251).

R3 uses two kinds of setback. The absolute minimum setback is the closest any part of a building may come to a property line. The minimum average setback is the average distance of a building face from that line, which balconies may enter (Section 41-265). For a class I project, the front absolute minimum is 20 feet and the average is 25 feet for a building 10 to 20 feet tall, growing 6 inches per foot above 20 feet to 30 feet at 30 feet tall. The side minimum is 6 feet, with an 8 to 12 foot average, and the rear is 15 feet (Section 41-266). Class II allows a 15 foot front minimum (Section 41-267).

R4 setbacks grow with height next to houses. Where an R4 lot's side or rear line touches A1, RE or R1 land, "each dwelling shall have a required side yard along said side property line of not less than one (1) foot for each one (1) foot of building height," and the rear yard works the same way (Sections 41-297 and 41-298). Elsewhere the side yard is 4 feet and the rear yard 10 feet.

Height Rules

R1, R2 and townhouses share a limit: "No primary structure shall exceed twenty-seven (27) feet nor two (2) stories in height, as measured from the lowest adjacent grade of the structure to the top of the structure" (Sections 41-233 and 41-248). RE allows 35 feet (Section 41-218). R3 allows 35, 45 or 60 feet by density class and sets no limit for class IV (Section 41-269). R4 has no limit except near houses: one story and 20 feet within 150 feet of A1, RE or R1 land, and three stories and 50 feet within 300 feet (Section 41-296).

Accessory buildings are capped citywide: "No accessory structure shall exceed twenty (20) feet" (Section 41-602 (f)). In R1, an accessory building "more than fifteen (15) feet in height or more than one (1) story" needs a conditional use permit (Section 41-232.5 (i)). Detached ADUs follow their own 20 foot, two story limit. On a lot used or zoned for homes, chimneys, antennas and similar features count as part of the building for height (Section 41-602 (e)). Section 41-602.5 lets the Council map height exemption areas with no height limit, and Section 41-602 sets height districts I and II, whose height exceptions apply to commercial, industrial and other nonresidential districts.

In the Transit Zoning Code, height is counted in stories, and Table BT-2 sets story heights. For a house, duplex, triplex or quadplex, a ground floor is 9 to 12 feet and an upper floor 8 to 14 feet. UN-1 allows two stories for these types and UN-2 allows three for duplexes to quadplexes.

Accessory Buildings, Projections and Fences

• Accessory building yards. On an interior lot, an accessory building up to 15 feet tall needs 3 foot side and rear yards; one taller needs 5 feet on the side and 10 at the rear. A garage on an alley must stay "not less than twelve (12) feet from the center line of the alley," and "There shall be a minimum 20-foot drive clearance between any property line abutting a street and the entrance of a garage" (Section 41-606).
• Spacing. "There shall be a distance of not less than fifteen (15) feet between detached dwelling units and main buildings" (Section 41-607 (g)).
• Projections. Eaves, cornices and chimneys may reach 48 inches into front and rear yards in A1, RE and R1, and 18 inches into interior side yards; in R2 and R3 the side yard limit is 6 inches (Section 41-605). A covered patio may extend up to 10 feet into the rear yard.
• Parking in yards. On a house or duplex lot, the front yard and a street side yard may not be used for parking, except on the driveway to a garage (Sections 41-239 (c) and 41-607 (e)).
• Fences. Front yard fences may be 3 feet tall, or 4 feet on arterial streets; other walls and fences 8 feet. A front yard fence over 18 inches needs a permit and must be see-through above that height (Section 41-610).
• Small changes. The Zoning Administrator may "authorize a ten (10) per cent reduction in required side, front, and/or rear yard" in writing (Section 41-608 (c)).

Coverage counts "the building footprint and all building projections, but shall exclude patio covers, awnings and eaves" (Section 41-105). R1 allows 35 percent and R2 and townhouses 50 percent. Along major streets, required yards are measured from the future right-of-way line set in Article VII, which can push a building back from today's property line (Section 41-607 (c)).

Where the Rules Disagree

• Measuring height. The general definition measures "from the curb level to the highest point of the roof surface" (Section 41-29). The district sections measure from "the lowest adjacent grade." The district sections are the specific rule; ask the Planning Division which it applies on a sloped lot.
• Rounding. Section 41-1309 rounds a fraction below 0.5 down, while the Transit Zoning Code rounds every fraction up. The Transit Zoning Code rule applies inside SD-84.
• Transit parking. Article XV sets minimums without a transit exception, but Government Code 65863.2 bars them near a major transit stop. The statute controls.

Where to Go Next

Related on VanPlex: the duplex to fourplex guide, the ADU law page and the Santa Ana overview.

Frequently Asked Questions

Official sources (checked October 2026)