El Monte | Zoning Districts
El Monte, California Zoning Districts: House Zones, Multiple-Family Zones, Multiuse Corridors and Housing on Commercial Land
A zoning district, or zone, is an area of the city map with one set of rules for what may be built on each lot. El Monte's zones are in Title 17 of the Municipal Code, which the City Council replaced as a whole on May 14, 2025. This page lists the zones that allow homes, how many homes each one allows on a lot, and the points where the code's own tables disagree. The El Monte overview has the summary.
El Monte zoning in six facts
- El Monte's zoning rules are Title 17 of the Municipal Code, and every section carries Ordinance No. 3053 of May 14, 2025 in its history note. Source: EMMC Title 17
- Table 17.14-1 lists seven residential zones: R-1A, R-1B, R-1C, R-2, R-3, R-4 and RMP, the mobilehome park zone. Source: EMMC 17.14.020
- R-1B is the one house zone that allows two or more detached houses on a lot, at one home per 8,720 square feet on a lot with 100 feet of frontage or less. Source: EMMC 17.20.050
- Duplexes and apartments are allowed by right in R-2, R-3 and R-4, at one home per 5,445, 4,356 and 1,740 square feet of lot. Source: EMMC 17.24.040, 17.24.050
- The MMU corridor zone allows up to 35 homes per acre and the UMU zone up to 50, and both require at least 25 per acre for a housing-only project. Source: EMMC 17.30.010, 17.30.040
- Apartments of three or more homes are also allowed by right in the C-1, C-2 and C-3 commercial zones, up to three stories and 40 feet. Source: EMMC 17.A, 17.40.040
The Code and Its Date
The copy of the code on Municode is named Supplement 36 Update 1. Its preface says "This supplement brings the Code up to date through Ordinance 3055, passed June 11, 2025." Every section of Title 17 ends with the note "Ord. No. 3053, § 3(Exh. A), 5-14-2025," and the City's Planning Documents page lists the "Zoning Code - 5/14/2025" and the "Zoning Map (PDF) - 5/14/2025."
One later ordinance has changed Title 17. The Municode list of ordinances not yet printed in the code shows Ordinance No. 3064, adopted April 8, 2026, "amending Chapters 17.30, 17.40, 17.42, 17.16, 17.112," and 17.150 on "regulations for significant tobacco retailers." The City Council minutes record a 7-0 vote. Chapter 17.30 is the multiuse zone chapter described below, so its use table on Municode does not yet show that ordinance. The ordinance title names tobacco retailers only. This guide read City Council agendas from January 14 to September 9, 2026 and found no other ordinance that amends the residential zones.
Section 17.14.030 makes the zoning map part of the code and says "an electronic version shall be placed on the city's website." The City posts an interactive zoning map. This guide states no zone for any parcel; look the lot up on the map.
Zones That Allow Homes
| Zone | Name in the code | Homes allowed | Notes |
|---|---|---|---|
| R-1A | One-family Dwelling | One house per lot | New lots 7,260 sq ft; 2 stories and 30 ft; SB 9 urban dwellings allowed |
| R-1B | One-family Dwelling | One home per 8,720, 7,920 or 7,260 sq ft of lot, by street frontage | 40 ft between houses; SB 9 urban dwellings allowed |
| R-1C | One-family Dwelling | One house per lot | New lots 10,000 sq ft; 1½ stories and 25 ft; horses allowed; no SB 9 urban dwellings in the City text |
| R-2 | Low-density Multiple-family Dwelling | One home per 5,445 sq ft | 2 stories and 30 ft |
| R-3 | Medium-density Multiple-family Dwelling | One home per 4,356, 3,630 or 3,111 sq ft, by street frontage | 2 stories and 30 ft; planned residential developments allowed |
| R-4 | High-density Multiple-family Dwelling | One home per 1,740 sq ft | 3 stories and 40 ft |
| RMP | Residential Mobilehome Park | Set by conditional use permit | Mobilehome parks |
| MMU | Mixed/Multiuse | At least 25 per acre for housing only; up to 35 per acre | Five or more attached homes; 4 stories and 50 ft |
| UMU | Urban/Multiuse | At least 25 per acre for housing only; up to 50 per acre | Garvey Corridor and 5-Points areas; 4 stories and 60 ft above 35 per acre |
| C-1, C-2, C-3 | Commercial zones | One home per 1,740 sq ft, or per 1,450 on lots of 30,000 sq ft or more | Three or more homes; 3 stories and 40 ft |
Sources: El Monte Municipal Code 17.14.020, 17.20.050, 17.24.050, 17.30.040, 17.40.040 and Chapter 17.A (Supplement 36 Update 1).
Each zone chapter has a use table with letter codes. "P" means "Use permitted by-right," which is a use that needs no hearing and no special permit. "C" means a conditional use permit, an approval the Planning Commission grants after a public hearing. "M" means a minor use permit, decided by a three-member Zoning Review Committee. "Z" means a director level zoning clearance, a staff check signed by the Community Development Director. A use that is missing from the table "shall not be permitted." Chapter 17.A repeats all the zone tables in one citywide matrix.
The Three House Zones
Section 17.20.010 describes R-1A as smaller lots that allow "one dwelling unit on each lot." R-1B "primarily includes deeper lots that allows for two (2) or more detached dwelling units on each lot under limited conditions." R-1C covers deeper lots with one dwelling where horses and other large animals may be kept. All three are matched to the Low Density Residential designation of the General Plan, the City's long-range land use plan.
- Uses. Table 17.20-1 allows a one-story house by right in all three zones. A house of more than one story is by right in R-1A; in R-1C it needs the Director's approval. "Residential dwellings, single-family, two or more detached on a lot" is marked P in R-1B and not permitted in R-1A and R-1C. The table has no row for a duplex in any R-1 zone.
- R-1B density. Table 17.20-2 sets one home per 8,720 square feet on a lot with 100 feet of frontage or less, per 7,920 square feet with 101 to 150 feet, and per 7,260 square feet with more than 150 feet. Frontage is the length of the lot line along the street. Two houses on a lot with 100 feet of frontage or less need 17,440 square feet (VanPlex arithmetic: 2 times 8,720).
- Space between houses. In R-1B the minimum distance between dwellings is "40 ft. (20 ft. front yard and 20 ft. rear yard)."
- House size. Each dwelling needs at least 1,000 square feet. A table note says "This requirement shall not apply to ADUs and urban dwellings."
- Floor area. The floor area limit is 0.35 of the lot on lots of 8,000 square feet or less, and falls to "0.20 or 5,000 sq. ft., whichever is greater" on lots over 20,000 square feet. The parking, setbacks and height page has the full table.
- Other homes. Accessory dwelling units are by right in all three zones. An "urban dwelling," the City's name for a second main home under the state law SB 9, is marked P in R-1A and R-1B and not permitted in R-1C. See the ADUs and SB 9 page.
The Rurban Homesteads Overlay District (RHOD) is an extra layer of rules on some house lots. An overlay adds its rules on top of the base zone. Section 17.22.030 allows "Not more than one one-family dwelling on any lot." Section 17.22.040 requires a lot of at least 10,000 square feet and 60 feet of width, a lot depth of "a minimum of two (2) times the lot width," and a height of no more than "twenty-five (25) feet and one and one-half (1½) stories." It also says "Flag lots and Planned Residential Developments shall be prohibited." A building of more than one story in the overlay needs a design review by the Director with notice to owners and residents within 300 feet.
The Multiple-Family Zones
Table 17.24-1 marks three housing types P in R-2, R-3 and R-4: a single house, "Residential dwellings, two-family, two attached or detached on a lot," and "Residential dwellings, multiple-family, three or more attached or detached on a lot." No hearing is tied to the use itself. The number of homes on a lot comes from a lot area figure per home, and in R-3 that figure changes with frontage.
| Zone | Frontage up to 100 ft | 101 to 150 ft | More than 150 ft |
|---|---|---|---|
| R-1B | 1 per 8,720 sq ft | 1 per 7,920 sq ft | 1 per 7,260 sq ft |
| R-2 | 1 per 5,445 sq ft | 1 per 5,445 sq ft | 1 per 5,445 sq ft |
| R-3 | 1 per 4,356 sq ft | 1 per 3,630 sq ft | 1 per 3,111 sq ft |
| R-4 | 1 per 1,740 sq ft | 1 per 1,740 sq ft | 1 per 1,740 sq ft |
Sources: El Monte Municipal Code Table 17.20-2 and Table 17.24-2 (Supplement 36 Update 1). In R-2 and R-4 one figure covers all three rows.
- Per acre. An acre has 43,560 square feet. The lot area figures work out to 8 homes per acre in R-2, 10, 12 and 14 in R-3, and 25 in R-4 (VanPlex arithmetic: 43,560 divided by 5,445, 4,356, 3,630, 3,111 and 1,740, each rounded down).
- Rounding. Section 17.12.060 says "The maximum number of units permitted shall always be rounded down to the nearest whole number (e.g. 3.8 units = 3.0 units)." It also says ADUs and junior ADUs "shall not be included in the calculation."
- A worked example. A 6,000 square foot lot with 60 feet of frontage holds one home in R-2 (6,000 divided by 5,445 is 1.10), one in R-3 (1.38) and three in R-4 (3.45). In R-2 and R-3 a second home on that lot comes through the ADU rules.
- One house on an R-2, R-3 or R-4 lot. A single house follows the R-1A standards.
- What the zones are for. Section 17.24.010 describes R-2 as "attached products with four (4) or fewer units," R-3 as "apartments, townhouses and Planned Residential Developments (PRDs)," and R-4 as "the highest residential densities among residential zoning districts."
- Other uses. A planned residential development needs its own permit and is allowed in R-3 and R-4. Senior housing needs a conditional use permit in R-3 and R-4. A mobilehome park needs one in R-4 and in the RMP zone, where "The development standards shall be established through the conditional use permit process."
Floor area, open space and the floor area bonus for larger projects are on the three or more homes page.
The Multiuse Corridor Zones
Section 17.30.010 describes the Mixed/Multiuse (MMU) zone as projects that "combine a complementary mix of housing and nonresidential uses along designated corridors," with "Densities up to thirty-five (35) residential units per acre." The Urban/Multiuse (UMU) zone applies "along the Garvey Corridor and 5-Points areas," with "Densities up to fifty (50) residential units per acre." The City's 2025 housing progress report, in the April 22, 2026 Council packet, lists the "Approval of Urban/Multiuse (UMU) zone along Garvey Avenue and 5 Points adopted into zoning code as of May 2025."
- Housing types. Table 17.30-1 marks "Multiple-family, five (5) or more attached dwellings on a lot" P in both zones, with horizontal and vertical mixed-use. Vertical mixed-use means shops or offices on the ground floor with homes above; horizontal means homes and shops in separate buildings on one site. An "Urban housing development" is P in UMU and not permitted in MMU.
- Minimum density. A housing-only project must reach "1 unit/1,740 sq. ft. or 25 units/acre." A project built below that figure does not meet the zone.
- Maximum density. Table 17.30-2 ties it to lot area: one home per 1,600 square feet on a lot under 25,000 square feet, rising by steps to one per 1,244 square feet (35.0 per acre) on lots of 40,001 square feet or more in MMU. In UMU the steps continue to "1 unit/871 sq. ft. or 50.0 units/acre" on lots over 60,000 square feet.
- Lot size. The minimum lot for housing is 20,000 square feet. A table note limits that rule to "properties with frontage along major or secondary arterials," the main streets shown on General Plan Figure C-4.
- Where shops must go. Vertical mixed-use, commercial floor area or community uses "shall be located" at listed intersections, among them Peck Road at Ramona Boulevard and Garvey Avenue at Santa Anita Avenue. Section 17.30.020 directs "exclusively residential developments mid-block."
- OMU. Table 17.14-1 also lists an Office/Multiuse (OMU) zone. Title 17 has no standards for it, and the matrix key reads "OMU Reserved for Office/Multiuse."
Homes in the Commercial Zones
The citywide matrix marks "Residential dwellings, multiple-family, three (3) or more attached or detached on a lot" P in C-1 (Office Commercial), C-2 (Neighborhood Commercial) and C-3 (General Commercial). In C-3 a note excludes "the East Valley Entryway Area as shown on the city's Zoning Map" and Valley Boulevard "at the intersections of Baldwin Avenue and Peck Road." Table 17.40-3 gives housing on commercial land its own standards:
- Height of "3 stories and 40 ft."
- A minimum density of one home per 2,200 square feet of lot, or one per 2,900 for a project with horizontal mixed-use.
- A maximum of one home per 1,740 square feet on a lot under 30,000 square feet, and one per 1,450 square feet on larger lots. Those figures are 25 and 30 homes per acre (VanPlex arithmetic: 43,560 divided by 1,740 and by 1,450, rounded down).
- Along major arterials, a lot of 15,000 square feet with 100 feet of frontage. Elsewhere the R-4 lot rules apply.
- "All other standards" refer "to the provisions of the R-4 zoning district."
The same matrix lists four more housing routes in these zones: affordable housing in commercial areas, corridor housing, religious institutions housing and planned residential developments. They are covered on the three or more homes page.
Specific Plans and Older Lots
A specific plan is a separate set of rules for one named area that replaces the base zone there. Table 17.14-1 lists five: SP-1 El Monte Gateway, SP-2 Mountain View, SP-3 Flair Spectrum, SP-4 Downtown Main Street Transit-Oriented District and SP-5 Esperanza Village. The matrix sends readers "to Chapter 17.133 (SP-3, Flair Park specific plan)," and Title 17 on Municode has no Chapter 17.133. The other four are on the Downtown and Gateway plans page.
Many El Monte lots were created before the 2025 code. Section 17.16.030 says "A nonconforming lot may be constructed upon provided that, the lot was legally created" and the buildings and uses meet the rest of the code. A nonconforming lot is one that was legal when created and is smaller or narrower than today's rule. Where a lot already holds more homes than the density allows, Section 17.16.040 lets the homes stay and limits additions: up to 35 percent or 400 square feet with a zoning clearance, and up to 50 percent or 750 square feet with a minor use permit, counted over five years.
Where the Code Disagrees With Itself
- A lot with exactly 100 feet of frontage. Table 17.20-2 starts with "≤100 ft. of frontage." Table 17.24-2 starts with "<100 ft. of frontage" and continues with "101 to 150 ft." An R-3 lot with exactly 100 feet falls in no row. Ask the Planning Division which figure it applies.
- R-2 description and use table. Section 17.24.010 describes R-2 as products "with four (4) or fewer units." Table 17.24-1 allows three or more homes with no upper number, and the density figure sets the count.
- The matrix heading. Chapter 17.A says its table "prescribes the land use regulations for commercial zoning districts." The table covers every zone.
- ADUs on commercial land. The matrix marks ADUs P in the six R zones, MMU and UMU and not permitted in C-1, C-2 and C-3, where it allows apartments. State ADU law applies in "areas zoned to allow single-family or multifamily dwelling residential use." The ADUs and SB 9 page explains which text controls.
- C-2 name. Table 17.14-1 calls C-2 "Neighborhood Commercial." The matrix key calls it "Retail Commercial."
Best For
- ✓ R-4 lots, where one home per 1,740 square feet gives three homes on a 6,000 square foot lot.
- ✓ R-1B lots of 17,440 square feet or more, which may hold two detached houses.
- ✓ Corridor lots of 20,000 square feet or more in MMU and UMU, at 25 to 50 homes per acre.
Usually Fails When
- ✕ A plan counts homes by the zone name and skips the lot area and frontage rule.
- ✕ An R-1C or RHOD lot is bought for a second main home that the City text does not list there.
- ✕ A corridor project is drawn below the minimum of 25 homes per acre.
What To Verify Before Spending Money
- → The lot's zone, overlay and specific plan on the City's interactive zoning map.
- → Street frontage and lot area, measured from a survey or the recorded map.
- → Whether any ordinance adopted after April 8, 2026 amends the chapter you rely on.
Where to Go Next
Related on VanPlex: the El Monte overview, the duplex to fourplex guide and the lot eligibility page.
Frequently Asked Questions
What are the residential zones in El Monte?
Can I build two houses on one lot in El Monte?
What does R-2 zoning allow in El Monte?
How many apartments can I build on an R-3 lot in El Monte?
What is the densest residential zone in El Monte?
What is the difference between R-1A, R-1B and R-1C in El Monte?
What is the Rurban Homestead Overlay District in El Monte?
Can I build apartments in a commercial zone in El Monte?
Where is the El Monte zoning map?
What is the UMU zone in El Monte?
Official sources (checked October 2026)
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