Room Addition in North Hollywood CA — Costs, Permits & Design (2026)

Room Addition in North Hollywood, CA — Costs, Permits and Design Guide (2026)

North Hollywood homeowners who need more space have a compelling alternative to buying up: adding square footage to their existing home. The neighborhood’s flat lots, City of LA jurisdiction (LADBS permits), and active appreciation ($700K–$1.3M home values) create favorable conditions for room addition investment. Whether you need a home office, a master suite expansion, or a new primary suite above the garage, APLA Construction (CA Lic #1136359) designs and builds North Hollywood room additions from permit to occupancy.

Room Addition Costs in North Hollywood (2026)

Single-Story Addition ($280–$380/sq ft)

Ground-level addition attached to the existing home. 200 sq ft addition: $56,000–$76,000. 400 sq ft family room or bedroom addition: $112,000–$152,000. North Hollywood’s flat lots keep foundation costs predictable and construction efficient.

Second-Story Addition ($350–$480/sq ft)

Adding a full second story or partial second story above existing first floor. Structural engineering required, LVL beam framing, new roof structure, staircase. Full second-story addition (600–800 sq ft): $210,000–$384,000. Adds significant value to North Hollywood homes that are on flat lots with good expansion potential.

Master Suite Addition ($120,000–$220,000)

Dedicated master bedroom with en-suite bathroom — the most common room addition type in North Hollywood. Includes bathroom rough-in, tile, vanity, walk-in closet framing. 300–450 sq ft typical scope.

North Hollywood Room Addition Permits — LADBS

North Hollywood is in the City of Los Angeles — LADBS permits. Structural plans required for additions (licensed structural engineer). Plan check: 5–10 weeks for most North Hollywood additions. APLA manages all LADBS permit submissions, corrections, and inspection coordination.

Frequently Asked Questions — Room Addition North Hollywood

How much does a room addition cost in North Hollywood in 2026?

Single-story addition: $280–$380/sq ft ($56,000–$152,000 for 200–400 sq ft). Second-story: $350–$480/sq ft. Master suite addition: $120,000–$220,000. North Hollywood runs at mid-Valley rates — below Westside, appropriate for the neighborhood’s home values.

Is a room addition worth it in North Hollywood?

Yes for most cases. A 400 sq ft addition in North Hollywood adds approximately $150,000–$250,000 in value against a $112,000–$152,000 investment — solid positive ROI, especially combined with an ADU for rental income.

Does APLA handle room additions in North Hollywood?

Yes. APLA (CA Lic #1136359) builds room additions throughout North Hollywood, Toluca Lake, Valley Village, Studio City, and the central Valley. Call (818) 818-4419 for a free addition consultation.

Contact APLA for Your North Hollywood Room Addition

Call: (818) 818-4419
Email: info@aplaconstruction.com
CA General Contractor License #1136359

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