Service Area · Los Angeles County
General Contractor in Porter Ranch, CA
Custom homes, ADUs, additions and outdoor living for Porter Ranch's hillside and HOA properties, planned around slopes, wildfire standards and architectural review before construction begins.
- Licensed California general contractor
- Custom homes, ADUs & additions
- Permits with LADBS
- Written, line-item estimates
Porter Ranch, CA
Building and Remodeling in Porter Ranch
Simply Construction is a licensed California general contractor in Porter Ranch, building custom homes, ADUs, room additions, second stories and outdoor living spaces in the foothills of the Santa Susana Mountains. Porter Ranch was developed as a master-planned community, and its homes are generally newer and larger than those on the flat Valley floor to the south.
That makes the typical project here different. The work is less about replacing worn-out systems and more about fitting new space onto sloped lots, satisfying an HOA's design standards and meeting California's wildfire building rules. We line up geotechnical input, association approval and LADBS permits in the right order, then build under one contract.
Local Knowledge
Slopes, HOAs and Fire Rules in Porter Ranch
Porter Ranch occupies the northwest corner of the San Fernando Valley, north of Northridge, west of Granada Hills and east of Chatsworth. Streets such as Porter Ranch Drive, Rinaldi Street and Sesnon Boulevard wind up into the foothills, and open canyons like Limekiln Canyon and Aliso Canyon run between the neighborhoods. The community was built in phases, from earlier tracts on the lower slopes to larger houses in gated enclaves higher up.
Many Porter Ranch tracts are governed by homeowners associations whose CC&Rs require architectural review for exterior changes. That review runs alongside the city's permit process, and we prepare drawings and material samples for it early so neither approval holds up the other.
Much of Porter Ranch is mapped as a Very High Fire Hazard Severity Zone, and wildfires, including the Sesnon and Saddleridge fires, have burned into its hillside edges. New construction and major additions here are built to the state's wildfire standards, and owners maintain brush clearance under Fire Department rules. Hillside lots also fall under the Baseline Hillside Ordinance, which caps floor area and limits grading based on slope.
Services
Construction & Remodeling Services in Porter Ranch
From ground-up homes to kitchens, here is how each of our services applies to Porter Ranch properties.
Custom Home Building in Porter Ranch
A custom home in Porter Ranch is most often a rebuild or major reworking on an existing hillside pad, or a new house on one of the remaining sloped lots. Either path starts with a geotechnical report and a survey, because the soil, the slope and the existing retaining walls set what the foundation must do. The house is then designed within the Baseline Hillside Ordinance's floor area and height limits, built with ignition-resistant exterior materials, and submitted for HOA review where the tract requires it. New homes also include the solar PV the state requires.
ADU Construction in Porter Ranch
California law bars HOAs from prohibiting ADUs on single-family lots, though associations can still apply reasonable design standards, so a Porter Ranch ADU usually needs both city and HOA sign-off. On sloped lots, the buildable area is often limited to the existing pad, which can favor an attached ADU or a garage conversion over a detached unit. The state still guarantees room for an ADU of at least 800 square feet on 4-foot side and rear setbacks, and in a fire zone the unit is built to wildfire standards with fire department access checked early.
Garage Conversions in Porter Ranch
Porter Ranch homes often have attached garages built into the slope or the main floor level, which makes them a practical place to add a suite or ADU without new grading. The city cannot require replacement parking for a garage turned ADU, but HOA parking rules and CC&Rs still need review before design. We insulate walls and ceilings, add egress windows sized for the room, rework the slab for a finished floor and bring plumbing and electrical in from the house.
Room Additions in Porter Ranch
Room additions in Porter Ranch usually have to work within a flat pad that ends at a slope, so the question is how much room the pad allows before a retaining wall or deeper foundation is needed. We review the geotechnical conditions and the Baseline Hillside floor area limit first, then design an addition that matches the house's existing materials and roof lines closely enough to pass HOA review. New exterior walls, vents and eaves are detailed to wildfire standards.
Second-Story Additions in Porter Ranch
Adding a second story in Porter Ranch can capture views of the Valley without using more of a limited hillside pad. The Baseline Hillside Ordinance measures height relative to the slope, and many HOAs have their own height or view guidelines, so we confirm both before design. The engineer then checks whether the existing foundation and frame can carry the new floor, and the upper level is built with the same ignition-resistant exterior details as any new construction in the fire zone.
Garage Construction in Porter Ranch
A new or expanded garage in Porter Ranch often sits at the front of a sloped lot, which can require retaining walls, a structural slab and careful drainage so runoff stays away from the house. We match the garage to the existing architecture for HOA approval, specify doors, vents and siding that meet wildfire standards, and plan electrical capacity for vehicle charging. Where a unit above the garage is part of the plan, state ADU rules govern the living space.
Whole-House Remodeling in Porter Ranch
Whole-house remodels in Porter Ranch tend to focus on layout, finishes and performance rather than rescuing failing systems, since much of the housing stock is newer than the Valley average. Typical goals include opening kitchens to family rooms, reconfiguring primary suites and replacing windows and doors. We also use a full remodel to upgrade roofing, vents and exterior materials toward current wildfire standards, which is worth doing on any home in the fire zone.
Kitchen Remodeling in Porter Ranch
Kitchen remodels in Porter Ranch homes often mean opening the kitchen to a family room and a backyard terrace or view, moving an island, and upgrading appliances, lighting and ventilation. We check whether walls are bearing before planning openings, run new circuits for induction or larger appliances, and design custom cabinetry that fits the scale of the house. Where exterior doors or windows change, we coordinate the HOA review and the wildfire-rated glazing.
Bathroom Remodeling in Porter Ranch
A primary bath remodel in a Porter Ranch home might replace a large soaking tub with a walk-in shower, add double vanities and improve lighting and ventilation. We install full waterproofing behind all tile, verify that the drain slope and venting meet code, and add blocking for future grab bars. If a bath sits over a garage or on a slab near a slope, we check for past moisture before new finishes go in.
Fire Rebuilds in Porter Ranch
Because wildfire has reached Porter Ranch's edges before, fire rebuilds here are a real possibility for hillside homes. Rebuilding means meeting California's wildfire construction standards with noncombustible or ignition-resistant siding, ember-resistant vents, multipane windows with tempered glass and a Class A roof assembly, along with defensible space around the house. We work with your insurer on scope, clear and demolish the site, obtain LADBS permits and coordinate any HOA review so the rebuild keeps moving.
Junior ADUs (JADU) in Porter Ranch
A junior ADU can fit inside a larger Porter Ranch home, using a downstairs bedroom wing or part of an attached garage, without grading or new foundations on a slope. The unit tops out at 500 square feet, needs an efficiency kitchen and its own door, and the owner is required to live on site in one of the two spaces. For households caring for a parent, it offers independence under the same roof, and because the work stays inside, any HOA review tends to center on exterior changes such as a new door.
SB 9 Lot Splits & Duplexes in Porter Ranch
SB 9 is harder to use in Porter Ranch than in most Valley neighborhoods. The law leaves out parcels in a Very High Fire Hazard Severity Zone unless the project takes on the state's required fire mitigation, and many lots here are also sloped or bound by HOA restrictions. Where a lot does qualify, a split must produce parcels of at least 1,200 square feet and 40 percent of the original. We review eligibility, access and slope before any design work is commissioned.
Patios, Decks & Outdoor Living in Porter Ranch
Outdoor living in Porter Ranch is often about views and shade on a hillside lot. We build patio covers and pergolas engineered to the house, outdoor kitchens with gas and power, and decks over slopes supported by engineered footings. In the fire zone, we select decking, framing and cover materials suited to wildfire exposure and keep combustible features away from the house, and we prepare drawings for HOA review before construction.
Why Choose Us
Why Porter Ranch Homeowners Choose Simply Construction
Licensed, Bonded and Easy to Verify
Simply Construction inc. is a licensed California general contractor, CSLB [CSLB LICENSE # PLACEHOLDER]. State law requires a license for any job of $1,000 or more in labor and materials, and anyone can check a contractor's license, bond and workers' compensation status on the CSLB website in about a minute. We encourage every Porter Ranch homeowner to do exactly that before signing with anyone, including us.
Permits Handled With LADBS
Most delays on large residential projects start at the permit counter. We prepare the drawing set, coordinate structural and Title 24 energy calculations, answer plan-check comments and schedule inspections with LADBS, so you are not the one chasing corrections. For ADUs, state law requires the agency to act on a complete application within 60 days, and a complete, well-coordinated submittal is what starts that clock.
Written, Line-Item Estimates
Before you commit, you receive a written estimate that breaks the project into its real parts: design and engineering, permit and utility fees, foundation, framing, systems, finishes and site work. Allowances are named and priced, so you can see where your selections move the budget. If the scope changes, the numbers change on paper first, never as a surprise on the final invoice.
Nearby Service Areas
We Also Build Near Porter Ranch
FAQ
Building in Porter Ranch: Common Questions
Can my Porter Ranch HOA stop me from building an ADU?
California law does not allow a homeowners association to prohibit or unreasonably restrict an ADU on a single-family lot. An HOA can still apply reasonable design standards, so we submit drawings and materials for architectural review alongside the city permit. Starting both approvals together usually keeps the schedule on track.
How does the fire hazard zone affect an addition in Porter Ranch?
New construction in a Very High Fire Hazard Severity Zone must meet California's wildfire building standards. In practice that means siding and trim that resist ignition, vents designed to stop embers, tempered glass in windows and a roof rated for fire exposure. We specify these from the start so there are no surprises in plan check, and we plan landscaping near the addition with brush clearance rules in mind.
Do I need a soils report to build on a sloped lot?
For most hillside additions, new homes and retaining walls in Porter Ranch, the city expects a geotechnical report that describes the soil, slope stability and foundation requirements. The report guides the structural design and grading plan. We coordinate with the geotechnical engineer early so the findings shape the design instead of forcing changes later.
Start Your Project
Start Your Porter Ranch Project
Tell us what you are planning. We will visit the property, talk through options and costs, and send a written, line-item estimate.
Licensed California General Contractor · CSLB [CSLB LICENSE # PLACEHOLDER]