San Dimas · Zoning · MF-D
San Dimas MF-D zoning: height, setbacks and lot size
In San Dimas's MF-D zone, generally buildings can be up to 30 ft (2 stories) tall, the front setback is 20 ft and the minimum lot size is 7,500 sq ft, with the conditions listed below (San Dimas code, read October 2026).
Key points
- Maximum building height: 30 ft (Whichever is less with the two-story maximum.)
- Maximum number of stories: 2 stories (Whichever is less with the 30-foot maximum.)
- Minimum front setback: 20 ft
- Minimum side setback: 5 ft on one side and 10 ft on the other (All other dwelling-unit arrangements.)
- Minimum rear setback: 25 ft (detached garages and accessory storage buildings may be within 3 ft of the rear property line)
- Minimum lot size: 7,500 sq ft
- Maximum density: 1 unit per 3,750 sq ft
MF-D (MF-D MULTIPLE-FAMILY ZONE—DUPLEX) is a zoning district in San Dimas. Every value below was read from the San Dimas Municipal Code and links to its section (read October 2026). State laws such as the ADU and SB 9 rules can allow more on a residential lot. General information, not legal advice — read the code text and check with the city before you build.
Development standards in MF-D
The general rule for a typical lot in this zone. Zoning tables often attach notes, such as rules for corner lots, lots next to a residential zone, or new subdivisions only. Open “code text” under a value to see the table cell or sentence it was read from.
| Maximum building height | 30 ft Applies: Whichever is less with the two-story maximum. § 18.48.040 · code text1. No building or structure erected in this zone shall have a height greater than thirty feet or two stories, whichever is less, except that a steeple, spire or other similar projection above a building used primarily for religious purposes, may extend the total height of the structure and steeple, spire or other similar projection as high as forty feet, provided that the height of the steeple, spire or other similar projection shall be harmonious in design with the building or structure and with the surrounding neighborhood and a development plan is approved by the review authority in accordance with Chapter 18.12 of this title. |
|---|---|
| Maximum number of stories | 2 stories Applies: Whichever is less with the 30-foot maximum. § 18.48.040 · code text1. No building or structure erected in this zone shall have a height greater than thirty feet or two stories, whichever is less, except that a steeple, spire or other similar projection above a building used primarily for religious purposes, may extend the total height of the structure and steeple, spire or other similar projection as high as forty feet, provided that the height of the steeple, spire or other similar projection shall be harmonious in design with the building or structure and with the surrounding neighborhood and a development plan is approved by the review authority in accordance with Chapter 18.12 of this title. |
| Minimum front setback | 20 ft § 18.48.040 · code text1. Front. There shall be a front yard setback of twenty feet. |
| Minimum side setback | 5 ft on one side and 10 ft on the other Applies: All other dwelling-unit arrangements. § 18.48.040 · code textii. For all others, there shall be a side yard setback of five feet on one side and ten feet on the other side. Zero side yard may be used provided a minimum fifteen-foot setback is provided on the other side. |
| Minimum rear setback | 25 ft Applies: detached garages and accessory storage buildings may be within 3 ft of the rear property line § 18.48.040 · code text3. Rear. The minimum rear yard shall be twenty-five feet. Detached garages and accessory storage buildings may be located in the rear yard within three feet of the rear property line. If there is alley access for the parcel a detached garage may have a three-foot setback from the rear property line provided the door faces the alley and is provided with a garage door opener. |
| Minimum lot size | 7,500 sq ft § 18.48.040 · code textA. Lot Area. Minimum seven thousand five hundred square feet. |
| Maximum density | 1 unit per 3,750 sq ft § 18.48.040 · code textC. Density. One dwelling unit shall be permitted for each three thousand seven hundred fifty square feet of lot area. |
When a different number applies
The code sets other values for particular lots, buildings or locations in MF-D:
- Maximum building height: 40 ft — Steeple, spire, or similar projection above a building used primarily for religious purposes; requires harmonious design and development plan approval by the review authority. § 18.48.040
- Minimum side setback: 0 ft — All other dwelling-unit arrangements, provided a minimum 15-foot setback is provided on the other side. § 18.48.040
- Minimum side setback: 10 ft — Side yard contiguous to a street. § 18.48.040
- Minimum side setback: 5 ft — Existing nonconforming dwelling unit otherwise meeting current building and zoning requirements; additions may be placed at existing building setbacks, with side yards not less than 5 feet. § 18.48.040
- Minimum side setback: 5 ft — Detached garages and accessory buildings. § 18.48.040
- Minimum rear setback: 3 ft — Detached garages and accessory storage buildings in the rear yard. § 18.48.040
- Minimum lot size: 6,000+ sq ft — Lot with an area less than 7,500 square feet but more than 6,000 square feet, held under separate ownership of record on the effective date of the ordinance, may use standards applicable to 7,500-square-foot lots without reference to dimension requirements. § 18.48.040
Not on this page
We did not find a general lot coverage, FAR limit for MF-D in the zoning tables we read. The code may still set one elsewhere — check the San Dimas Municipal Code.
Other San Dimas zoning districts
Who this affects
Frequently asked questions
What is the maximum building height in San Dimas's MF-D zone?
30 ft (whichever is less with the two-story maximum) — San Dimas Municipal Code § 18.48.040.
What is the maximum number of stories in San Dimas's MF-D zone?
2 stories (whichever is less with the 30-foot maximum) — San Dimas Municipal Code § 18.48.040.
What is the minimum front setback in San Dimas's MF-D zone?
20 ft — San Dimas Municipal Code § 18.48.040.
What is the minimum side setback in San Dimas's MF-D zone?
5 ft on one side and 10 ft on the other (all other dwelling-unit arrangements) — San Dimas Municipal Code § 18.48.040.
What is the minimum rear setback in San Dimas's MF-D zone?
25 ft (detached garages and accessory storage buildings may be within 3 ft of the rear property line) — San Dimas Municipal Code § 18.48.040.
General information, not legal advice.
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