What does interior finishing cost in Commerce?

Typical range is $8K–$71K — the LA County median adjusted for Commerce pricing.

Interior finishing in Commerce

Q: Which permit office handles Commerce?

City of Commerce (independent jurisdiction).

Commerce is a small independent industrial-heavy city; residential stock concentrates in three neighborhoods and most parcels sit near railyards, triggering vibration-mitigation design.

Commerce cost range

$8K–$71K

5% below LA County median

Permit office

City of Commerce (independent jurisdiction)

Typical lot

6,000 sqft

ZIP

90040

Start your Commerce scope — Baily asks the right questions.

Pre-seeded for interior finishing in Commerce. Mention your lot, your timeline, and any known constraints — Baily factors the city permit queue and local zoning into the scope.

Interior finishing in Commerce — scoped by Baily, built by NP Line Design.

“A string of bright beads of sunlight, breaking through the valleys along the moon’s rim.”

— Francis Baily, 1836

Origin

Who is Baily?

Baily is named after Francis Baily — an English stockbroker who retired at 51, became an astronomer, and in 1836 described something on the edge of a solar eclipse that nobody had properly articulated before: a string of bright beads of sunlight breaking through the valleys along the moon’s rim.

He wasn’t the first to see them. Edmond Halley saw them in 1715 and barely noticed. Baily’s contribution was clarity — describing exactly what was happening, in plain language, so vividly that the whole field of astronomy paid attention. The phenomenon is still called Baily’s beads.

That’s what we wanted our AI to do. Every inbound call and text has signal in it — a homeowner’s real question, a timeline, a budget, a hesitation that means “yes but.” Baily listens to every one, 24/7, and finds the beads of light.

Baily was a businessman before he was a scientist. That’s our vibe too.

Questions LA homeowners actually ask

Commerce interior finishing runs $19K-$209K in ZIP 90040 for a 1,500-4,000 sqft home in 2026 — a Budget-tier submarket on the $20K-$220K LA baseline. Installed rate is $14-$57/sqft covering drywall finish, trim, paint, and built-in millwork. Level 5 finish and high-end millwork push the top band; basic Level 4 plus flat latex lands near the floor.
Commerce interior finish jobs pull from four ASTM C1396 products: 1/2" standard for bedrooms and hallways, 5/8" Type X for 1-hour fire-rated assemblies at garage walls and stair soffits, moisture-resistant greenboard for bathroom walls outside the shower, and mold-resistant purpleboard (ASTM D3273) for wet-zone ceilings. Level 5 skim-coat finish is mandatory under raking light or gloss paint per GA-214.
Commerce standard trim packages use primed MDF for paint-grade base, casing, and crown — stable, zero knots, low cost. Poplar steps up for paint-grade shoe and chair rail when impact resistance matters. Oak or walnut is reserved for stain-grade libraries and studies. Built-in custom cabinetry and shelving runs $190-$760/lin ft installed, dependent on door style, hardware, and site-finish vs factory-finish.
Three finish options show up on Commerce ceilings: smooth Level 5 (cleanest, shows every framing imperfection, $4-$7/sqft premium), orange peel (light splatter, hides minor waves), and knockdown (heaviest texture, most forgiving). Given Commerce's pre-1980 housing density, popcorn ceiling scrape-off triggers the SCAQMD Rule 1403 asbestos survey before any blade hits the texture. Smooth Level 5 is the resale-standard spec for homes listing above $1.5M.
Commerce sits in ZIP 90040 and prices as a Budget-tier submarket for interior finishing work. The neighborhood's pre-1978 housing density makes EPA RRP lead-safe protocols a default line item on most demo-involved scopes. Pull two contractor bids with line-item drywall level, paint brand and sheen, trim material, and door spec — vague "paint included" lines hide 15-25% of the true finish cost across a 1,500-4,000 sqft floor plan.