Deck Builderin San Fernando, CA
A deck builder in San Fernando works inside the state permit line: only a deck of 200 square feet or less, under 30 inches, detached and away from an exit door is exempt. Attached or raised decks need a building permit, quake hold-downs belong in the framing, and the City's pre-sale report can reveal an unpermitted deck.
San Fernando is mostly houses on small lots. Census estimates for 2020 to 2024 count 4,804 single-family detached homes among 6,613 units (72.6 percent), and 61.6 percent of occupied homes are owner-occupied. The 1971 earthquake destroyed many homes, which is why the City's historic survey finds only about 230 surviving buildings from 1971 to 1979, and the oldest building standing is the 1882 Lopez Adobe. Because 83.0 percent of homes predate 1980, a new deck usually bolts onto a house more than 45 years old, so the framing it attaches to deserves a look first.
MDG Builders, CSLB #1040337, is a Tarzana general contractor. We draw the deck, take it through Building and Safety and Planning, and hire a licensed carpentry subcontractor to build it (how that works). Ranges are on the decks page, and the San Fernando overview shows our other trades in town.
What San Fernando's Building and Safety Division, Zoning Code and resale program say about decks
Where decks permits come from in San Fernando: City of San Fernando Community Development Department, Building & Safety Division.
- The state list of permit-exempt work (Residential Code R105.2, as excerpted by the City of Albany from the 2025 code) exempts decks of no more than 200 square feet that are not more than 30 inches above grade at any point, are not attached to a dwelling and do not serve the required exit door; larger, higher or attached decks need a building permit.
- Residential accessory structures in San Fernando (garage, workroom, shed, recreation room or cabana) may not sit in front of the main building (garages excepted), are capped for non-parking structures at the lesser of 500 square feet, 50 percent of the main building's ground floor or 50 percent of the rear yard, must be at least 6 feet from the main building and 3 feet from any property line if detached, and a structure smaller than 250 square feet may be built of metal if Planning and Building approve (Section 106-45).
- Under the Objective Design Standards, paved patios and decks count as allowed hardscape in the street-facing yard, and at least 50 percent of that yard must stay landscaped (section 5.1.1), so a front deck or patio reduces the landscaped share rather than being unlimited.
Can you build a deck without a permit in San Fernando?
Only a small free-standing one. The state model list in Residential Code section R105.2, as excerpted by the City of Albany from the 2025 code, exempts a deck of no more than 200 square feet that stays within 30 inches of grade at every point, is not attached to a dwelling and does not serve the required exit door. Larger, higher or attached decks need a building permit, and we found no San Fernando handout that loosens that.
Planning can come first. Section 106-856 of the Chapter 106 PDF the City posts requires a Site Plan Review Permit for residential new construction or exterior alteration involving 500 square feet or more of floor area, or reaching a second floor. Whether a deck counts as floor area there is Planning's call. The PDF's effective date could not be confirmed and the City's code site blocked our reading, so confirm the section before relying on it.
A permitted deck valued over $10,000 also brings the City's debris plan, with Republic Services as hauler and a report showing 65 percent recycled before final inspection.
What holds a deck to a San Fernando house in an earthquake?
The ledger and the hold-downs do. The 2022 California Residential Code asks for a ledger of at least 2x8 pressure-treated lumber (R507.9.1.1) that carries no concentrated loads from beams or girders and is not fastened to stone or masonry veneer, with hot-dipped galvanized or stainless fasteners and flashing (R507.9.1.3). Lateral loads go through hold-downs: two devices of 1,500 pounds within 24 inches of each end, or four devices of 750 pounds (R507.9.2).
Those lines matter here because the City's Safety Element names the 1971 San Fernando (Sylmar) and 1994 Northridge earthquakes as the two most significant recent events and maps one liquefaction hazard zone along the western boundary. The City's page says it enforces the 2022 California codes and we found no later adoption, so the 2022 text is the one quoted.
Ask the builder to point to the ledger flashing and the hold-down hardware on the plans, and to photograph both before the boards go on.
How much yard can a deck use, and can I put a shade cover on it?
Lot rules shape the footprint. For R-1, R-2 and R-3 lots the Zoning Code sets a 20 foot front setback, a 5 foot side setback and at least 6 feet between buildings, with maximum lot coverage of 50 percent in R-1 and 40 percent in R-2 and R-3 (Tables 106-43.1 and 106-43.2). We could not confirm whether an open deck counts toward coverage, so ask Planning with a sketch.
A roofed structure is a different question. Section 106-45 lists garage, workroom, shed, recreation room and cabana as accessory structures that cannot sit in front of the main building, must stand 6 feet from it and 3 feet from a property line if detached, and for non-parking uses are capped at the lesser of 500 square feet, 50 percent of the ground floor or 50 percent of the rear yard. Whether a pergola or patio cover counts is Planning's call.
In a front yard, the Objective Design Standards treat paved patios and decks as allowed hardscape but keep at least 50 percent of the street-facing yard landscaped, for projects those standards cover.
How high must a deck guard be in San Fernando, and what about a pool deck?
A guard is required where the walking surface is more than 30 inches above grade within 36 inches of its edge, so a deck kept at 30 inches or lower can go without one. The 2022 California Residential Code sets the guard at 42 inches minimum (R312.1.2) with openings small enough to stop a 4 inch sphere (R312.1.3), which settles the 36 versus 42 question for a house deck.
Pools add a layer. San Fernando's Zoning Code (Section 106-374) requires pools and spas to be fenced under the building code, so a deck beside a pool is part of that barrier question. Show the pool, its fence and the deck on one plan and ask Building and Safety which barrier rule governs.
We read the guard rules in the ICC's published code and found no San Fernando handout on guards.
Do San Fernando decks need fire-resistant boards?
Not by a mapped zone. The City's 2022 Safety Element says CAL FIRE maps no fire hazard severity zones inside San Fernando, and a 68-point sample of the County's August 2025 Local Responsibility Area layer inside the city boundary returned NonWildland at every point. That is a sample, not a parcel check, so confirm an address on CAL FIRE's viewer.
The risk is not zero. The same Element notes very high zones to the northwest, north and east and Santa Ana winds that carry embers into the city. The Residential Code's decking-material list (R337.9.3) applies in wildland-urban interface areas, and whether any part of San Fernando carries that designation is a question for Building and Safety. Choosing tested ignition-resistant boards anyway is a cost decision for the owner, not a City mandate we can cite.
Do you need a permit for deck repair in San Fernando, and what damages old decks?
Replacing a few worn boards is likely maintenance, but we found no San Fernando handout on repairs and the state exemption list we read has no repair line for decks, so ask Building and Safety. Replacing a ledger, posts, beams or joists is structural, and an inspector will want to see it.
Water and insects do most of the damage. UC Statewide IPM says drywood termites are most common in southern California and infest decks and fences, and its advice is to fix moisture problems and seal exterior wood. Probe the posts at the soil line and the ledger wherever flashing has failed.
Trees matter too. Section 106-350 requires a barrier at two times the trunk diameter, up to 15 feet, around a heritage, protected or native tree, with no fill within 3 feet and no compaction in the drip line, so new footings near a mature tree need a plan. Before a sale, the pre-sale inspection report lists City records and violations, and the resale form asks for the contractor's license number and class.
What does a deck builder charge in San Fernando, wood or composite, and what does deck repair cost?
We found no San Fernando price study, so the anchor is Remodeling magazine's 2025 Cost vs. Value report for Los Angeles. For a 16 by 20 foot deck with a bench, planter, three steps and full railing, it puts wood at $18,419 with 99.6 percent recouped at resale and composite at $26,872 with 73.9 percent. Angi's Los Angeles page, updated October 2025, shows an average of $13,570 and a range of $6,335 to $20,871, with permits at $500 to $3,000. The sources overlap for wood and diverge for composite, so composite is medium to low in confidence.
Our planning range is $45 to $75 per square foot for treated wood and $65 to $110 for composite, before permits and engineering. A 16 by 20 comes to roughly $14,500 to $24,000 in wood and $21,000 to $35,000 in composite, and a 20 by 20 runs $18,000 to $30,000 and $26,000 to $44,000. Federal wage data for May 2025 put Los Angeles-area carpenters at a mean $37.79 an hour. We found no independent repair price, so repairs are priced by site visit.
CSLB's C-5 framing class covers framing and rough carpentry, and its C-13 class covers railings. Our license check guide shows how to look up a license.
Deck photos from San Fernando and nearby communities
Footings, framing, railings and finished decks from San Fernando and nearby Valley communities, shown at the stages that matter. Tap any photo to enlarge it.
What decks costs around San Fernando
Dollar figures here are Los Angeles planning ranges from our decks page, not a San Fernando bid, and permits, engineering and any Planning review belong on separate proposal lines. For the same lot, see flooring in San Fernando and concrete in San Fernando. Neighboring comparisons: decks in Los Angeles, deck building in Burbank, decks in Santa Clarita and decks in Glendale.
| What it covers | Typical range |
|---|---|
| Pressure-treated wood deck | $45 to $75 per square foot |
| Composite deck | $65 to $110 per square foot |
| 16 by 20 foot wood deck (320 sq ft) | About $14,500 to $24,000 |
| 16 by 20 foot composite deck | About $21,000 to $35,000 |
| Hillside, second-story, rooftop and ipe decks | Priced by site visit |
| Permits and engineering | Quoted as separate lines |
Other work we manage in San Fernando
San Fernando deck questions, answered
Can I build a deck without a permit in San Fernando?
Only a small free-standing one. The state model list exempts a deck of 200 square feet or less that stays within 30 inches of grade, is detached and does not serve the exit door. We found no San Fernando handout that changes this, so call Building and Safety, and expect Planning to ask about setbacks.
What is the largest deck you can build without a permit in San Fernando?
On the state model list, 200 square feet, provided it is no more than 30 inches above grade at any point, not attached to the house and not serving the required exit door. Anything bigger, higher or attached needs a building permit. The City's code site blocked our reading, so confirm the figures at the counter.
How high can a deck be without a railing in San Fernando?
Up to 30 inches above grade. The Residential Code requires a guard where the walking surface is more than 30 inches above grade within 36 inches of the edge. Above that line the guard must be at least 42 inches tall with openings that stop a 4 inch sphere. We found no San Fernando handout that changes these numbers.
Is deck railing 36 or 42 inches in San Fernando?
Forty-two inches at minimum for a house deck, under the 2022 California Residential Code section R312.1.2. The 36 inch number applies to where a guard begins counting, within 36 inches of the deck edge, not to its height. The City's page says it enforces the 2022 codes, and we found no ordinance adopting a later edition, so confirm with Building and Safety.
How much should a 16x20 deck cost in San Fernando?
Roughly $14,500 to $24,000 in treated wood and $21,000 to $35,000 in composite at our Los Angeles planning range, before permits and engineering. Remodeling magazine's 2025 Cost vs. Value report prices a 16 by 20 with bench, planter and steps at $18,419 in wood and $26,872 in composite. Neither is a San Fernando bid.
How much would a 20x20 deck cost in San Fernando?
About $18,000 to $30,000 in treated wood and $26,000 to $44,000 in composite, found by multiplying 400 square feet by our $45 to $75 and $65 to $110 per square foot ranges for Los Angeles. Permits and engineering are extra, composite is medium to low in confidence, and a site visit sets a real price.
Is it cheaper to build a wood deck or a composite deck in San Fernando?
Wood costs less to build. Remodeling magazine's 2025 Los Angeles report shows $18,419 for wood against $26,872 for composite on the same 16 by 20 design, and Angi's average is $13,570. Wood recouped 99.6 percent at resale in that report and composite 73.9 percent, so the gap narrows after a sale.
What happens if a deck is built without a permit in San Fernando?
We found no San Fernando penalty schedule, so we cannot quote fines. What we can confirm is that the City's pre-sale inspection report lists its records for the structure and any code violations an inspector finds, so an unpermitted deck can surface when the house is sold. Ask Building and Safety about legalizing it.
Do I need a permit for deck repair in San Fernando?
Replacing a few boards is probably maintenance, but we found no San Fernando repair handout, and the state exemption list has no repair line for decks. Replacing a ledger, posts, beams or joists is structural work an inspector will want to see. Ask Building and Safety before the first board comes off.
Can I put a shade canopy over my deck in San Fernando?
Possibly, but the roof changes the review. Section 106-45 treats a cabana as an accessory structure that cannot sit in front of the main building and must stand 3 feet from a property line if detached, and we found no handout on roofed covers, so ask Building and Safety about a permit too. Whether a pergola counts is Planning's call, so bring a sketch.
Tell us the footprint, how high it sits and what it attaches to
Give us the rough dimensions, the height above the ground, whether the deck joins the house and whether a pool is nearby. The permit, ledger and resale questions come with us to the first visit.