Earlier editions: 2026-09
Title 9 — LAND USE CODE›Division 4 — SIGNS, PARKING, FENCE, HOME OCCUPATIONS, ACCESSORY DWELLING UNITS, AND CANNABIS AND INDUSTRIAL HEMP OPERATIONS
Imperial County Municipal Code § 90515.04 Minimum lot size
Imperial County Municipal Code · 2026-10 edition · updated 2026-10-04 · Imperial County
Cite as: Imperial County Municipal Code § 90515.04 · Text as of 2026-10-04
90515.00 - Purpose and application.¶
The purpose of the M-1 (light industrial) zone is to designate areas for wholesale commercial, storage, trucking, assembly type manufacturing and other similar light industrial uses. Processing or fabrication is limited to activities conducted entirely within a building, that does not emit fumes, odor, dust, smoke or gas, beyond the confines of the building within which the activity occurs, or produces significant levels of noise or vibration beyond the perimeter of the building.
(Ord. No. 1565, §§ 3, 4, 12-15-20)
90515 - 01 Permitted uses in the M-1 zone.¶
The following uses are permitted in the M-1 Zone provided they meet the requirements of this Title:
a) Accessory Dwelling Unit, Caretakers Residence or Managers Residence per Section 90405.02.
b) Ambulance station.
c) Antique store.
d) Appliance Repair store.
e) Appliance Store.
f) Art Gallery.
g) Artist Studio.
h) Auditoriums.
i) Auto Body Repair within enclosed facility.
j) Auto Leasing Store.
k) Auto Parking Garages (two stories or less and enclosed).
l) Auto Rental.
m) Auto Service Station.
n) Auto Service within enclosed facility.
o) Auto Tire Repair.
p) Auto Wash.
q) Auto Wash - Self-service.
r) Automobile Dealership - New (including parts).
s) Automobile Dealership - Used (including parts).
t) Automobile Parts and Accessories Store.
u) Automobile Tire Store including Service.
v) Bakery.
w) Ball Room.
x) Barber/Beauty.
y) Bars.
z) Bath House.
aa) Bicycle Sales and Rental Service.
bb) Bingo Parlor.
cc) Boats sales, including Service and Parts.
dd) Book Store - Adult.
ee) Book Store - General.
ff) Bottled Gas Distributorship (no manufacturing or packaging).
gg) Bowling Alley.
hh) Bus Depots.
ii) Business or Professional Office.
jj) Cafes.
kk) Card Room.
ll) Cargo Containers (provided they have an approved building permit).
mm) Carpet Cleaning.
nn) Catering.
oo) Christmas Tree Sales.
pp) Circus or Carnival (not to exceed five days).
qq) Clinic (health maintenance).
rr) Clothing and Apparel sales, manufacturing, distribution.
ss) Clubs.
tt) Cocktail Lounges.
uu) Coffee Shop.
vv) Cold Storage facilities.
ww) College and Universities.
xx) Computer sales, repair, manufacturing.
yy) Contractors Storage Yard.
zz) Convenience Market.
aaa) Dance Hall.
bbb) Data center (within enclosed building).
ccc) Department Store.
ddd) Discotheque.
eee) Drapery and Upholstery Store.
fff) Drug and Pharmaceutical sales and manufacturing.
ggg) Educational Institutions.
hhh) Electrical Appliance sales, repair and distribution.
iii) Electrical Equipment repair, assembly within enclosed facility.
jjj) Electronic Equipment Assembly (enclosed).
kkk) Electrical Generation with rate and capacity not to exceed fifteen (15) kilowatts.
lll) Electrical Vehicles Charging Stations as a Primary Use.
mmm) Emergency Shelters.
nnn) Employee Housing.
ooo) Equipment and Building Materials.
ppp) Equipment - Heavy Truck, Trailer Rental.
qqq) Equipment - (small rental facility).
rrr) Farmers Market.
sss) Fast Food preparation, sales or distribution.
ttt) Feed and fuel facility.
uuu) Financial Institution.
vvv) Fire/Police Station.
www) Floor Covering.
xxx) Florists.
yyy) Food Store.
zzz) Freight Storage Yard.
aaaa) Funeral Parlor.
bbbb) Furniture Cleaning, Refinishing and Upholstery.
cccc) Furniture Store.
dddd) Gardening and Landscape Store.
eeee) Gift and Card Store.
ffff) Golf Driving Range.
gggg) Government Buildings.
hhhh) Gun, including Repair Store.
iiii) Hardware - General including Lumber.
jjjj) Health Club.
kkkk) Hobby Supplies.
llll) Home or Office Furnishing.
mmmm) Hotel/Motel.
nnnn) Ice Cream Parlors.
oooo) Ice Vending Machine.
pppp) Industrial Hemp: manufacturing into semi-finished and finished products, subject to Division 4 Chapter 6 of Title 9 Land Use Ordinance and Title 14 of the Imperial County Codified Ordinance.
qqqq) Industrial Storage.
rrrr) Interior Decorator.
ssss) Janitorial.
tttt) Jewelry and Watches.
uuuu) Labor/Union Halls.
vvvv) Laboratory - Medical, Dental, Optical and Biological.
wwww) Laboratory Testing.
xxxx) Lapidary.
yyyy) Laundromat.
zzzz) Lawnmower (sales/repair).
aaaaa) Leather Goods, sales and manufacturing.
bbbbb) Libraries.
ccccc) Light Machine Shop Fabrication within enclosed facility.
ddddd) Liquor Store.
eeeee) Locksmith.
fffff) Lumber.
ggggg) Lumber Yard.
hhhhh) Manager/Caretaker/Security Guard Residence (One only).
iiiii) Medical and Physical Therapy.
jjjjj) Microwave Relay Stations.
kkkkk) Military Surplus store.
lllll) Mini Warehouse (no outside storage).
mmmmm) Miniature Golf Course.
nnnnn) Mobile Home Sales and Service.
ooooo) Mortuary.
ppppp) Motorcycle Sales and Service.
qqqqq
Movie Theatre.
rrrrr) Moving and Storage Warehouse.
sssss) Museums.
ttttt) Musical Instrument Sales and Service.
uuuuu) Newspaper, Magazine printing, distribution and sales.
vvvvv) Nursery.
wwwww) Office Machine Equipment Sales and Service.
xxxxx) Oil and Gas Exploration.
yyyyy) Paint and Wallpaper Sales and Service.
zzzzz) Pawn Shop.
aaaaaa) Pest Control.
bbbbbb) Pet Grooming.
cccccc) Pet Store.
dddddd) Photographic Processing Plant.
eeeeee) Photographic Supply Store.
ffffff) Photography Studio.
gggggg) Picture Framing.
hhhhhh) Plastic Assembly.
iiiiii) Plumbing Supply.
jjjjjj) Pool or Billiard Parlor.
kkkkkk) Post Office.
llllll) Pottery.
mmmmmm) Printing, Lithography or Blue Printing.
nnnnnn) Public Utility Buildings.
oooooo) Real Estate Office.
pppppp) Recreational Vehicle Sales and Service.
qqqqqq) Research and Development Office/Laboratory.
rrrrrr) Resource Extraction and Energy Development.
ssssss) Restaurants.
tttttt) Sheet Metal Shop within enclosed facility.
uuuuuu) Shoe repair and manufacturing.
vvvvvv) Shoe Shine.
wwwwww) Sign Fabrication.
xxxxxx) Skating Rink.
yyyyyy) Small Appliance assembly and repair.
zzzzzz) Solar energy extraction generation provided that it is for on-site consumption only.
aaaaaaa)
Specialized Store.
bbbbbbb)
Sporting Good.
ccccccc)
Stationary.
ddddddd)
Tailor or Dress Maker.
eeeeeee)
Taverns.
fffffff)
Taxi Depots.
ggggggg)
Taxidermist.
hhhhhhh)
Telegraph.
iiiiiii)
Tennis, Swim, Athletic Club.
jjjjjjj)
Theatre.
kkkkkkk)
Ticket Agency.
iiiiiii)
Tire Re-Treading, Less than ten (10) employees.
mmmmmmm)
Tobacco.
nnnnnnn)
Toy manufacturing.
ooooooo)
Trade Schools.
ppppppp)
Transitional Housing (as defined in Section 50675.2 of the Health and Safety Code).
qqqqqqq)
Transmission Lines.
rrrrrrr)
Travel Agency.
sssssss)
Truck Fueling Station.
ttttttt)
Truck, including Sales, Rental, Service.
uuuuuuu)
Used Clothing.
vvvwvv) Utility substations.
wwwwwww)
Veterinary including Veterinary Hospital (indoor only).
xxxxxxx)
Video Game Arcade.
yyyyyyy)
Warehouses.
zzzzzzz)
Wedding Chapel.
aaaaaaaa)
Welding or Blacksmithing provided it is adequately fenced with obscured fencing.
bbbbbbbb)
Wholesale Distribution.
cccccccc)
Wind driven electrical generator, capacity not to exceed fifteen (15) kilowatts.
Note: Pre-School, Elementary School, Junior High and High Schools are not permitted in the M-1 Zone.
(Ord. No. 1565, §§ 3, 4, 12-15-20; Ord. No. 1587, §§ 1, 2, 12-5-23)
90515.02. - Uses permitted only with a conditional use permit.¶
The following uses are permitted in the M-1 Zone provided they meet the requirements of this Title:
a) Airports or aircraft landing fields.
b) Amusement Park.
c) Animal hospitals, kennels and veterinarians.
d) Asphalt production and products.
e) Asphalt/Concrete Batch Plant.
f) Auto Towing/Dismantling.
g) Auto wrecking.
h) Bakery - Large (more than twenty-five (25) employees).
i) Battery Storage.
j) Billboards/Off site advertising signs.
k) Bulk fuel storage facilities.
l) Call Center.
m) Cemeteries, columbariums, crematories and mausoleums.
n) Chemical Storage (Non-Toxic, Non-Explosive).
o) Churches or other places used exclusively for religious worship.
p) Circus.
q) City, County, State and Federal enterprises including buildings, facilities and uses of departments or institutions thereof which are necessary or advantageous to the general welfare of the community.
r) Commercial Cannabis (All Forms), subject to Division 4 Chapter 6 of Title 9 Land Use Ordinance and Title 14 of the Imperial County Codified Ordinance.
s) Communication Towers: including radio, television, cellular, digital, along with the necessary support equipment such as receivers, transmitters, antennas, satellite dishes, relays, etc. (subject to requirements of this zone and Division 24; Section 92401 "Communications Facilities Ordinance" et al).
t) Cotton gins.
u) Dairies.
v) Data center yard.
w) Dehydration mills.
x) Electrical Power Generation Plants.
y) Equestrian Establishment.
z) Equipment Rental (service, maintenance and repair).
aa) Establishments or enterprises involving large assemblages of people or automobiles, including amusement parks, circuses, carnivals, exposition, fairground, open air theatres, race tracks, recreational and sport centers.
bb) Farm implement sales and metal fabrication.
cc) Geothermal Test Facilities, intermediate projects and major exploratory wells.
dd) Golf Course.
ee) Grain storage and loading facilities.
ft) Heliport.
gg) Hospitals, sanitariums and rest homes.
hh) Institutions of a philanthropic nature.
ii) Labor camp.
jj) Libraries, museums, private clubs and golf courses.
kk) Major facilities relating to the generation and transmission of electrical energy, provided such facilities are not, under state or federal law, to be approved exclusively by an agency, or agencies of the state and/or federal governments, and provided that such facilities shall be approved subsequent to coordination and review with the Imperial Irrigation District for electrical matters. The maximum allowance of battery shall be in a ratio of 2 to 1 compared to solar. Such uses shall include, but not be limited to, the following:
Electrical generation plants.
Facilities for the transmission of electrical energy (100—200 kV).
Electrical substations in an electrical transmission system (500 kv/230 kv/161 kV).
ll) Meat and fish packing plants.
mm) Mineral Exploration.
nn) Newspaper, Magazine or Book Printing.
oo) Portable Restroom Facilities.
pp) Race Track.
qq) Railroad Station.
rr) Recreational Vehicle Storage Facilities.
ss) Recycling Facility.
tt) Rock shops and related facilities.
uu) Seed mills.
vv) Shooting Range (indoor only).
ww) Small ethanol plants with a capacity not to exceed one million (1,000,000) gallons a year.
xx) Sports arena - Indoor/Outdoor.
yy) Surface mining operations.
zz) Swap meets.
aaa) Swimming Pool.
bbb) Transfer Station.
ccc) Trucking Services and Terminals; Trucking Firms.
ddd) Waste Energy Facility.
eee) Well Drilling Service.
(Ord. No. 1565, §§ 3, 4, 12-15-20; Ord. No. 1587, §§ 1, 2, 12-5-23)
90515.03 - Prohibited uses.¶
All other uses not permitted by Section 90515.01 or 90515.02 of this chapter are prohibited in the M-1 zone.
(Ord. No. 1565, §§ 3, 4, 12-15-20)
90515.04 - Minimum lot size.¶
The minimum lot size requirement in the M-1 Zone, is ten thousand (10,000) square feet.
(Ord. No. 1565, §§ 3, 4, 12-15-20)
90515.05 - Minimum lot area per dwelling unit.¶
There is no requirement for a minimum area per dwelling unit in the M-1 district since it does not allow dwelling units, except as accessory security or caretakers unit to the permitted use. Any residential use must meet R-1 setback requirements.
(Ord. No. 1565, §§ 3, 4, 12-15-20)
90515.06 - Yards and setbacks.¶
Yards and setbacks in the M-1 zone are as follows:
A. Front Yard: The front yard minimum setback for all buildings shall be as follows:
Ten (10) feet from the property line or public right-of-way line.
Zero feet if approved by the planning director with the written concurrence from public works department and the fire marshal.
In no case shall buildings be located in the right-of-way or on the property line, unless it meets the latest edition of the California Building Code.
B. Side Yard: None required.
C. Rear Yard: None required.
(Ord. No. 1565, §§ 3, 4, 12-15-20)
90515.07 - Height limit.¶
Buildings and structures in the M-1 district shall not exceed six stories or eighty (80) feet.
(Ord. No. 1565, §§ 3, 4, 12-15-20)
90515.08 - Minimum distance between structures.¶
There is no requirement for a minimum distance between structures in the M-1 zone, except that required by the California Building Code.
(Ord. No. 1565, §§ 3, 4, 12-15-20)
90515.09 - Parking.¶
Off street parking in the M-1 zone shall be provided in accordance with Section 90402.01(f).
(Ord. No. 1565, §§ 3, 4, 12-15-20)
90515.10 - Signs.¶
The following signs shall be permitted in the M-1 zone; however, all signs shall be subject to Section 90401 as applicable:
Temporary real estate signs not exceeding twenty (20) square feet, advertising the property for sale or lease, and meeting requirements of Division 4, Chapter 1.
Temporary construction signs related to construction on said property, meeting requirements of Division 4, Chapter 1.
Temporary political, religious, civic and campaigning signs not to exceed three months, meeting requirements of Division 4, Chapter 1.
Signs approved in conjunction with a conditional use permit approved for the site.
(Ord. No. 1565, §§ 3, 4, 12-15-20)
90515.11 - Landscaping.¶
Landscaping in the M-1 zone shall be provided according to Section 90302.03.
(Ord. No. 1565, §§ 3, 4, 12-15-20)
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