Los Angeles County HOA Guide
Porter Ranch HOA Guide: Local Rules for Boards and Owners
Porter Ranch is a neighborhood of the City of Los Angeles in the San Fernando Valley, so city rules apply here. What sets it apart is a specific plan written around owners’ associations, hillside fire rules and the Aliso Canyon gas storage facility in the hills above.
This guide covers what is specific to Porter Ranch. For the rules that apply across the whole city, such as home-sharing, protected trees and work hours, see our Los Angeles HOA guide.
Local rules on this page were checked against City of Los Angeles Planning pages and the Porter Ranch Land Use/Transportation Specific Plan, Los Angeles Fire Department (LAFD) pages, LADWP pages, the California Public Utilities Commission (CPUC), the California Geologic Energy Management Division (CalGEM), the Los Angeles County Department of Public Health and the State Water Resources Control Board on November 2, 2026. Porter Ranch is not a Census place, so this page gives no population figure. We could not confirm a named Porter Ranch master association, any special tax district for the neighborhood or whether the city has adopted CAL FIRE’s 2025 fire hazard maps. Two LAFD pages also disagree about clearing brush on neighboring land, so this page tells you to confirm with LAFD. Confirm the current rule before you act on it. Sources are listed at the bottom of the page.
At a glance
HOAs in Porter Ranch at a glance
The city does not publish a list of Porter Ranch associations. A few facts still shape how a board works here:
The city does not enforce your CC&Rs, and your CC&Rs do not excuse anyone from a city rule. Where the specific plan and your documents both speak to open space or slopes, follow both.
Local rules
Rules that apply in Porter Ranch
Three layers of rules apply to a Porter Ranch association. State law comes first, mainly the Davis-Stirling Act. City ordinances and the Porter Ranch Specific Plan apply to every property, whether or not it is in an HOA. Your governing documents can then be stricter than the city in most areas, and state law limits them in a few.
The Porter Ranch Specific PlanA city land use plan from 1990 that expects owners’ associations to own and maintain open space.
The Porter Ranch Land Use/Transportation Specific Plan took effect on August 24, 1990 (Ordinance 166,068). City Planning’s page for the plan lists eight later ordinances, so it has been amended several times. The plan sits in the Chatsworth-Porter Ranch Community Plan area and Council District 12. Parts of the plan speak directly to associations:
- Cluster design leaves the remaining land as common open space “to be owned and maintained by a mandatory property owners’ association” (Section 7).
- Recreation facilities may be owned by a property owners’ association set up by tract CC&Rs, with authority to assess the owners who benefit for all costs (Section 7 A 1(b)).
- Open space that is not City-owned is to be maintained by property owners’ or homeowners’ associations (Section 8 G 2(d)).
- Slopes are to be planted with fire-retardant vegetation that suits the natural environment (Section 2 H), and street trees in the single-family area go no more than 40 feet apart (Section 7 E).
The plan also has a landscape plan approval process run by City Planning. It applies to building permit applicants, and the plans must include a long-term maintenance plan and use water-conserving plants and techniques where feasible (Section 12 A). The plan’s design review provisions we read focus on the Community Center Area. Ask City Planning whether a common-area project needs any plan approval before you start.
We could not confirm a named Porter Ranch master association, how many sub-associations there are or any special tax district. Check your own CC&Rs and title report.
What to do about it: Governing Documents Explained helps you read your CC&Rs next to the plan. For who maintains what, see Who Pays for Repairs in an HOA? and California HOA maintenance and repair responsibilities.
Fire zone and brush clearanceLAFD names Porter Ranch in its Very High Fire Hazard Severity Zone, where clearance is a year-round duty.
LAFD says its Very High Fire Hazard Severity Zone covers most of the city’s hilly and mountainous land, and it lists Porter Ranch among the communities in it. Whether a particular lot is in the zone is still a parcel-by-parcel question. LAFD’s fire zone map and its online system (FIMS, using the APN and PIN on LAFD’s notice) show a parcel’s status.
The citywide brush clearance rules are in our Los Angeles guide. In short, LAFD’s requirements page (LAMC 57.4906.5.2) calls for cutting grass and native brush to 3 inches within 200 feet of structures and within 10 feet of combustible fences and driveways. It also sets tree and roof clearances and bans clearance work on Red Flag days. Clearance must also follow the city’s protected native tree rules (LAMC 46.00 to 46.06), which matters on oak-covered slopes.
Two LAFD pages read differently on neighboring land. The requirements page (revised in 2017) describes clearance within 200 feet of a structure whether the brush is on the owner’s property or an adjoining one. The 2026 owner notice says, “You Are Only Responsible to Clean Your Own Property.” Neither page mentions HOAs or common areas. If your association owns slopes next to homes, ask the Brush Clearance Unit at (800) 994-4444 who must clear what before the next cycle.
CAL FIRE issued new recommended fire hazard maps for the city on March 24, 2025. LAFD said in April 2025 that the city had not yet adopted them and would hold public hearings. We could not confirm whether the city has adopted them since.
What to do about it: Wildfire Defensible Space for Foothill HOAs walks through a common-area plan. For coverage questions, see Rising HOA Insurance Costs in California and the FAIR Plan and California HOA insurance requirements.
Aliso Canyon gas storageThe 2015 leak, the reduced storage limit and the state’s process for possibly closing the facility.
Aliso Canyon is in the Santa Susana Mountains, and SoCalGas operates it. According to the CPUC, SoCalGas found a leak at one of its storage wells on October 23, 2015, stopped it on February 12, 2016 and sealed the well on February 15, 2016. The well was later plugged and abandoned.
What the state pages say has happened since:
- On February 9, 2017, the CPUC opened an investigation (I.17-02-002) into whether use of Aliso Canyon can be minimized or eliminated.
- On July 19, 2017, the CPUC and CalGEM found the facility safe to operate, and it reopened at reduced capacity.
- On August 31, 2023, the CPUC set the storage inventory at 68.6 billion cubic feet. The pre-leak capacity was 86 billion cubic feet.
- On December 19, 2024, the CPUC set a path to a possible closure. A proceeding on permanent closure would open once forecast demand falls to a set target and an assessment finds closure would not harm reliability or rates. No closure date has been set.
- The CPUC page lists its first biennial assessment, dated October 1, 2025.
The Los Angeles County Department of Public Health coordinates the Aliso Canyon Disaster Health Research Study. Its page we read was not current, so check with the department for the study’s status.
None of these pages mention HOAs or give associations any duties. For a board, Aliso Canyon is mainly something to follow and to be ready to explain to owners and buyers. Point owners to the CPUC and CalGEM pages rather than repeating second-hand news.
What to do about it: keep owners informed with clear, sourced updates. Buying a House in an HOA? Here’s What You Need to Know covers what buyers should ask, and buying, selling and renting in a California HOA covers the state rules.
LADWP water and the turf lawLADWP sets watering days and hours. HOA common areas face a 2029 turf deadline.
LADWP says the city is in Phase 2 of its water conservation ordinance. Under Phase 2, odd street addresses water Monday, Wednesday and Friday, and even addresses Sunday, Tuesday and Thursday. There is no outdoor watering from 9 a.m. to 4 p.m. The full rules, fines and LADWP’s turf rebate are summarized in our Los Angeles guide.
Porter Ranch associations with large common slopes and parkways should plan for the state’s nonfunctional turf law, AB 1572 (Water Code section 10608.14). The State Water Board’s FAQ says:
- HOAs and common interest developments may not use drinking water on nonfunctional turf in common areas from January 1, 2029. Lawns inside owners’ own lots are not covered.
- Functional turf, meaning grass in a recreational use area or community space, is outside the ban. Trees and other non-grass plantings may still get drinking water.
- Associations with more than 5,000 square feet of irrigated common area must certify compliance to the Board by June 30, 2031, and every three years until 2040.
Replacing turf on slopes interacts with the specific plan’s call for fire-retardant slope planting. Ask your landscape professional to plan for both.
What to do about it: put the turf conversion in your numbers with Planning Your HOA Budget and Understanding HOA Reserve Studies, then compare landscape bids with the Vendor Comparison Worksheet. For the state rules, see California HOA reserves.
Citywide rules in briefHome-sharing, work hours and parking follow the same rules as the rest of Los Angeles.
These citywide rules apply in Porter Ranch the same way they do everywhere else in the city. Our Los Angeles guide covers each one:
- Home-sharing: only a host’s primary residence can be registered, and standard home-sharing is capped at 120 days a year. Your CC&Rs can still restrict rentals.
- Protected trees: native oaks and certain other native trees and shrubs need a city permit to remove.
- Work hours: LAMC 41.40 limits loud construction near homes, with no work on Sundays.
- Parking: the city’s preferential parking districts are run by LADOT.
What to do about it: How to Handle Short-Term Rentals in Your Community and HOA Rules and Enforcing Violations. For the state rules on enforcement, see California HOA enforcement, fines and disputes.
Is this a lot for a volunteer board to track?
City rules, state law and your own documents all change, and someone has to keep up. If your Porter Ranch board is deciding between managing itself and hiring help, start with Self-Managed vs. Professional HOA Management, or tell us about your community and we will send you options from affiliated management companies.
Compare HOA management optionsQuick answers
Questions Porter Ranch board members ask
Does the specific plan make our association responsible for open space?
The plan says open space that is not City-owned is to be maintained by property owners’ or homeowners’ associations. Which land is yours depends on your tract map and CC&Rs. See Governing Documents Explained.
Is all of Porter Ranch in the Very High Fire Hazard Severity Zone?
LAFD lists Porter Ranch among the communities in the zone, but status is set parcel by parcel. Check each parcel on LAFD’s fire zone map or in FIMS.
Do we have to clear brush on land next to our common area?
LAFD’s pages disagree. One describes clearance whether brush is on your property or an adjoining one, and the 2026 notice says you are only responsible for your own property. Ask the Brush Clearance Unit at (800) 994-4444.
Is Aliso Canyon closing?
No closure date has been set. In December 2024 the CPUC set a process that could lead to a closure proceeding once demand falls to a set target. Follow the CPUC’s Aliso Canyon page for updates.
Does Aliso Canyon create any duties for our association?
The state and county pages we read do not mention HOAs or give associations any duties. Ask your attorney if a question comes up in a sale or a dispute.
When must we stop watering decorative common-area lawns with drinking water?
January 1, 2029, under AB 1572, according to the State Water Board. Plan the cost with the Annual HOA Budget Checklist.
Is there a Porter Ranch master HOA?
The specific plan expects a mandatory owners’ association, but we could not confirm a named master association on an official page. Check your deed and governing documents.
Calendar
A Porter Ranch board’s year
The brush clearance dates come from LAFD’s 2026 cycle and may shift. The 2029 and 2031 dates come from the State Water Board. The other items are general good practice, not legal requirements.
Keep the year on track: use the Board Meeting Checklist and the Annual HOA Budget Checklist.
Who to call
Porter Ranch contacts for HOA boards
| Office | Phone | Use it for |
|---|---|---|
| LAFD Brush Clearance Unit | (800) 994-4444 | Brush clearance and inspections (weekdays, 8:00 a.m. to 3:30 p.m.) |
| LADWP | 1-800-342-5397 | Water waste reports and watering rules |
| LADWP Water Conservation | 800-544-4498 | Conservation help |
| Planning, Home-Sharing Unit | (213) 202-5464 | Home-sharing registration |
| Home-Sharing 24-hour hotline | (213) 267-7788 | Short-term rental complaints |
For Porter Ranch Specific Plan questions, City Planning’s page for the plan lists its planning staff. For Aliso Canyon, the CPUC’s Aliso Canyon page links to its contact page.
Keep going
Where to go next on How2HOA
Sources for this guide
These sources open in a new tab.
City of Los Angeles: Porter Ranch Specific Plan page; Porter Ranch Land Use/Transportation Specific Plan; LAFD fire zone history; LAFD brush clearance requirements; LAFD 2026 owner notice; LAFD on the 2025 CAL FIRE maps; LADWP water conservation ordinance; LADWP report water waste; What is home-sharing.
Aliso Canyon: CPUC Aliso Canyon page; CPUC decision of December 19, 2024; CalGEM Aliso Canyon archive; LA County Public Health, Aliso Canyon Disaster Health Research Study.
California law: State Water Board, nonfunctional turf; State Water Board AB 1572 FAQ.
Professional management
Thinking about management help?
Tell us about your community and we will send you options from affiliated management companies.
Compare HOA management optionsBrowse all HOA topicsThis page is general educational information, not legal, financial or insurance advice. City ordinances and state law change, and your association’s governing documents control many of these questions, so check the current code and talk with your association’s attorney or another qualified professional about your situation.