LAND USE CATEGORIES AND RUN-OFF FACTORS.
Los Angeles Municipal Code § 64.51.05
in effectSEC. 64.51.05. LAND USE CATEGORIES AND RUN-OFF FACTORS.
(Amended by Ord. No. 175,397, Eff. 9/21/03.)
USE CODE | LAND USE | AREA BREAKDOWN | RUN-OFF FACTOR
USE CODE | LAND USE | AREA BREAKDOWN | RUN-OFF FACTOR
| RESIDENTIAL | |
0100 | Single | Up to 0.3257 acreArea in excess of 0.3257 acre | 0.41760.0190
010C | Condominium | Up to 0.3257 acreArea in excess of 0.3257 acre | 0.81940.0190
010D | Planned residential development | Up to 0.3257 acreArea in excess of 0.3257 acre | 0.41760.0190
010E | Condominium conversion | Up to 0.3257 acreArea in excess of 0.3257 acre | 0.81940.0190
010F | Cooperative | Up to 0.3257 acreArea in excess of 0.3257 acre | 0.81940.0190
010H | Own-your-own | Up to 0.3257 acreArea in excess of 0.3257 acre | 0.81940.0190
010M | Modular homes | Up to 0.3257 acreArea in excess of 0.3257 acre | 0.41760.0190
0200 | Double, duplex or two-unit | Up to 0.6514 acreArea in excess of 0.6514 acre | 0.41760.0190
0300 | Three-unit (any combination) | Up to 0.9771 acreArea in excess of 0.9771 acre | 0.68150.0190
0400 | Four-unit (any combination) | Up to 1.3028 acreArea in excess of 1.3028 acre | 0.81940.0190
0500 | Five or more units or apartments | All lot areas | 0.8553
0700 | Mobilehomes | Up to 0.3257 acreArea in excess of 0.3257 acre | 0.41760.0190
0800 | Rooming houses | All lot areas | 0.6815
0900 | Mobilehome parks | All lot areas | 0.8194
| COMMERCIAL | |
1000 | Open | All lot areas | 0.4733
1100 | Stores | All lot areas | 0.9086
1200 | Store combinations | All lot areas | 0.9086
1300 | Department stores | All lot areas | 0.9850
1400 | Supermarkets | All lot areas | 0.9762
1500 | Shopping centers (neighborhood) | All lot areas | 0.9578
1600 | Shopping centers (regional) | All lot areas | 0.9461
1700 | Office buildings | All lot areas | 0.9086
1800 | Hotels and motels | All lot areas | 0.9578
1900 | Professional buildings | All lot areas | 0.9578
2000 | Open | All lot areas | 0.4733
2100 | Restaurants and cocktail lounges | All lot areas | 0.9461
2200 | Wholesale and manufacturing outlets | All lot areas | 0.9086
2300 | Banks and savings & loans | All lot areas | 0.9578
2400 | Service shops | All lot areas | 0.9461
2500 | Service stations | All lot areas | 0.9578
2600 | Auto, recreation & construction equipment sales & service | All lot areas | 0.9461
2700 | Parking lots | All lot areas | 0.9461
2800 | Animal kennels | All lot areas | 0.9578
2900 | Nurseries or greenhouses | Up to 0.4136 acreArea in excess of 0.4136 acre | 0.47330.0190
| INDUSTRIAL | |
3000 | Open | All lot areas | 0.4733
3100 | Light manufacturing | All lot areas | 0.9086
3200 | Heavy manufacturing | All lot areas | 0.9086
3300 | Warehousing distribution & storage | All lot areas | 0.9086
3400 | Food processing plants | All lot areas | 0.9578
3500 | Motion picture & radio/television industries | All lot areas | 0.8194
3600 | Lumber yards | All lot areas | 0.9578
3700 | Mineral processing | All lot areas | 0.4733
3800 | Parking lots | All lot areas | 0.9086
3900 | Open storage | All lot areas | 0.6551
| FARM | |
4000 | Irrigated – open | All lot areas | 0.0190
4100 | Irrigated – fruits & nuts | All lot areas | 0.0190
4200 | Irrigated – vineyards | All lot areas | 0.0190
4300 | Irrigated – vines & bush crops | All lot areas | 0.0190
4400 | Irrigated – truck crops | All lot areas | 0.0190
4500 | Irrigated – field crops | All lot areas | 0.0190
4600 | Irrigated – pasture | All lot areas | 0.0190
4700 | Irrigated – dairies | All lot areas | 0.0190
4800 | Irrigated – poultry | All lot areas | 0.0190
4900 | Irrigated – feed lots | All lot areas | 0.0190
5000 | Dry – open | All lot areas | 0.0190
5100 | Dry – fruits & nuts | All lot areas | 0.0190
5200 | Dry – vineyards | All lot areas | 0.0190
5300 | Dry – field crops | All lot areas | 0.0190
5400 | Dry – pasture | All lot areas | 0.0190
5500 | Dry – timber (pine) | All lot areas | 0.0190
5600 | Dry – timber (fur) | All lot areas | 0.0190
5700 | Dry – timber (redwood) | All lot areas | 0.0190
5800 | Dry – desert land | All lot areas | 0.0190
5900 | Dry – waste land | All lot areas | 0.0190
6000 | Open | All lot areas | 0.0190
6100 | Theatres | All lot areas | 0.9086
6200 | Open | All lot areas | 0.0190
6300 | Bowling alleys | All lot areas | 0.9850
6400 | Clubs, lodge, halls, fraternal organizations | All lot areas | 0.9086
6500 | Athletic and amusement facilities | All lot areas | 0.6551
6600 | Golf courses | All lot areas | 0.0289
6700 | Race tracks | All lot areas | 0.6551
6800 | Camps | All lot areas | 0.0190
6900 | Skating rinks | All lot areas | 0.4733
| INSTITUTIONAL | |
7000 | Open | All lot areas | 0.4733
7100 | Churches | All lot areas | 0.8194
7200 | Schools | All lot areas | 0.8194
7300 | Colleges and universities | All lot areas | 0.4733
7400 | Hospitals | All lot areas | 0.7435
7500 | Homes for aged and others | All lot areas | 0.6815
7600 | Open | All lot areas | 0.4733
7700 | Cemeteries, mausoleums, and mortuaries | All lot areas | 0.0000
7800 | Open | All lot areas | 0.4733
7900 | Open | All lot areas | 0.4733
| MISCELLANEOUS | |
8000 | Open | All lot areas | 0.0190
8100 | Utilities | All lot areas | 0.4733
8200 | Mining | All lot areas | 0.0190
8300 | Petroleum & gas | All lot areas | 0.1279
8400 | Pipelines & canals | All lot areas | 0.0000
8500 | Rights-of-way | All lot areas | 0.0190
8600 | Water rights | All lot areas | 0.0000
8700 | River, lakes & quarries | All lot areas | 0.0000
8800 | Government owned properties | All lot areas | 0.0000
8900 | Dump sites | All lot areas | 0.0190
9200 | Horse stables | All lot areas | 0.0315
9300 | Unclassified | All lot areas | 0.0000
9800 | Non-numeric use codes | Up to 0.3257 acreArea in excess of 0.3257 acre | 0.41760.0190
9900 | Zero – zero use codes | Up to 0.3257 acreArea in excess of 0.3257 acre | 0.41760.0190
| VACANT | |
None | All | See notes for area breakdown | 0.0190
NOTES:
1. Parcel identification numbers and corresponding use codes are taken from the Los Angeles County Department of Public Works records for Flood Control Benefit Assessment.
2. A vacant designation (V) with a corresponding run-off factor of 0.0190 is assigned to the total area of those parcels whose improvement value is $4,000 or less (except parcels with use codes 2700 and 3800 and for 800 series parcel numbers).
3. A vacant designation (V) with a corresponding run-off factor of 0.0190 is assigned to the vacant portion of parcels whose improvement value is more than $4,000 if it is determined that the vacant portion is significant.
4. Parcels with superseded use codes 010A and 010B that are still remaining on the Los Angeles County Assessors records are assigned use codes of 010F and 010H, respectively.
5. Parcels with unrecognizable use codes are assigned a use code of 9800 or 9900 and are assessed in the same manner as use code 0100 parcels.
6. Parcels with unknown areas are assigned an area of 0.1526 acre (the median single-family residential parcel size).
7. Government owned parcels, denoted with 270 through 300 and 900 series parcel numbers by the Assessor, are not assessed.
8. The areas of common area parcels of cluster-type developments are divided equally among the development owners.
Source: City of Los Angeles, Charter and Codes (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/los_angeles/latest/lamc/0-0-0-162478Fetched: 10/24/2026