Hawthorne Municipal Code Ch. 17 20a. R-1 ZONE (CA)

§ 17.20a.010. Purpose.

The principal objective and purpose to be served by this classification and its application are to create a living environment of the highest standards for single-family detached dwellings by means of the standards and requirements set forth herein with regard to minimum lot area, lot dimensions, yards, setbacks, and open spaces required to be maintained. A related consideration for the City in establishing these standards and requirements is to more efficiently and economically design, install, and maintain public service facilities in terms of size and capacity to adequately and permanently meet the needs resulting from the intensity of land use allowed in this zoning classification.

(Ord. 1894 § 19, 2007; Ord. 2183 § 5, 2019; Ord. 2263, 6/23/2026[1])

[1]

Editor's Note: This chapter was renumbered from Ch. 17.14.

§ 17.20a.020. Permitted uses and general standards.

All uses and structures in the R-1 Low-Density Residential classification shall comply with the standards and requirements of the table below.

Table of Uses and General Standards for R-1 Zone 1

	Minimum Lot Size	Minimum Lot Width	Minimum Lot Depth	Minimum Front Setback 2	Side Setback Interior 3 /Street	Minimum Rear Setback 5	Maximum Lot Coverage	Maximum Building Height 6	Minimum Open Space Per Unit
Single-family detached dwelling	5,000	50	100	15	5/5 4	5	50%	22	—
Accessory dwelling unit (ADU)	See California Government Code §§ 66310 through 66342 .	See California Government Code §§ 66310 through 66342 .	See California Government Code §§ 66310 through 66342 .	See California Government Code §§ 66310 through 66342 .	See California Government Code §§ 66310 through 66342 .	See California Government Code §§ 66310 through 66342 .	See California Government Code §§ 66310 through 66342 .	See California Government Code §§ 66310 through 66342 .	See California Government Code §§ 66310 through 66342 .
Two-unit residential development	See Ch. 17.34a	See Ch. 17.34a	See Ch. 17.34a	See Ch. 17.34a	See Ch. 17.34a	See Ch. 17.34a	See Ch. 17.34a	See Ch. 17.34a	See Ch. 17.34a
Libraries	5,000	50	100	15	5/10	5	50%	22	—
Mobile home	5,000	50	100	15	5/10	5	50%	12	—
Assembly use (CUP)	5,000	50	100	15	5/5 4	5	—	—	—
Planned unit development, 2 units only	8,000	50	100	15	5/10	5	75%	22	500
Public utility facilities (CUP)	5,000	50	100	15	5/10	5	50%	12	—
Schools, (public or nonprofit private)	—	—	—	15	5/10	30	35%	22	—
Small and large family day care home (CUP required for large)	5,000	50	100	15	5/10 4	5	50%	22	—
Accessory buildings	—	—	—	—	5/10 7	5 7	50%	12	—
Short-term rental	See Chapter 17.24e	See Chapter 17.24e	See Chapter 17.24e	See Chapter 17.24e	See Chapter 17.24e	See Chapter 17.24e	See Chapter 17.24e	See Chapter 17.24e	See Chapter 17.24e
Home occupation	See Chapter 17.34a	See Chapter 17.34a	See Chapter 17.34a	See Chapter 17.34a	See Chapter 17.34a	See Chapter 17.34a	See Chapter 17.34a	See Chapter 17.34a	See Chapter 17.34a
Employee housing	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).
Residential care facility, small	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).
Supportive housing	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).
Transitional housing	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).	Subject only to those restrictions that apply to other residential uses of the same type in this zone (e.g.,single-family detached, ADU unit).

CUP = Conditional Use Permit required; - = Not Applicable Notes:

1	Units are feet except lot size and open space, which are square feet.
2	For garage facing street, minimum setback of 18 feet required.
3	Side setback is 10% of lot width up to 5 feet, but not less than 3.5 feet.
4	An additional setback of 5 feet shall apply to the second story adjacent to a street-side yard.
5	On through lots the rear setback shall be the same as required for front setback.
6	12 feet maximum on lots less than 40 feet average width and less than 5,000 square feet.
7	May be built to lot line provided the structure's walls have a minimum one-hour fire rating and no windows or doors within 3 feet of a lot line.

(Ord. 2240, 11/14/2023; Ord. 2263, 6/23/2026)

§ 17.20a.030. Prohibited uses.

Commercial cannabis cultivation, manufacturing, distribution, and retail business except where the City is prohibited by federal or state law from enacting a prohibition on any such activity.

(Ord. 2106 § 3, 2016; Ord. 2148 § 6, 2017; Ord. 2237 § 3, 2023; Ord. 2263, 6/23/2026)