Room Addition in Van Nuys CA — Costs, Permits & Design (2026)

Room Addition in Van Nuys, CA — Costs, Permits and Design Guide (2026)

Van Nuys is one of the San Fernando Valley’s most practical room addition markets. The neighborhood’s large flat lots, City of Los Angeles (LADBS) jurisdiction, and accessible home values ($600K–$1.1M) mean that room additions here are well-priced, straightforward to permit, and deliver solid ROI without over-building the neighborhood. For Van Nuys homeowners who need more space — a home office, guest room, expanded primary suite, or larger family room — a room addition is often more cost-effective than moving up in a tight Valley market. APLA Construction (CA Lic #1136359) builds Van Nuys room additions efficiently and on budget.

Room Addition Costs in Van Nuys (2026)

Single-Story Addition ($265–$360/sq ft)

Ground-level addition on Van Nuys flat lots. 200 sq ft addition: $53,000–$72,000. 400 sq ft family room or bedroom suite: $106,000–$144,000. Van Nuys flat lots and accessible contractor availability keep addition costs at the lower end of the Valley range.

Second-Story Addition ($340–$460/sq ft)

Full or partial second story above the existing first floor. Structural engineering required, new roof structure, staircase addition. 500 sq ft second-story suite: $170,000–$230,000. Adds significant sq ft without using rear yard (important where backyard ADU is also being planned).

Master Suite Addition ($100,000–$185,000)

Dedicated primary bedroom with en-suite bathroom and walk-in closet — the most common Van Nuys addition request. Typically 250–400 sq ft.

Van Nuys Room Addition Permits

Van Nuys is in the City of Los Angeles — LADBS permits. Structural plans required. Plan check: 5–9 weeks. No hillside premiums on most Van Nuys lots. APLA manages all LADBS submissions for Van Nuys addition projects.

Frequently Asked Questions — Room Addition Van Nuys

How much does a room addition cost in Van Nuys in 2026?

Single-story addition: $265–$360/sq ft. Second-story: $340–$460/sq ft. Master suite: $100,000–$185,000. Van Nuys room additions are among the more affordable in LA — appropriate for the neighborhood’s $600K–$1.1M home value range.

Should I do a room addition or ADU in Van Nuys?

Depends on the goal. Room addition: adds space you use, attached to main house, lower per-sq-ft cost. ADU: separate unit that generates $1,600–$2,400/month rental income. Many Van Nuys homeowners who need both space and income choose to do both — a room addition for personal space needs and a backyard ADU for rental income. APLA coordinates both projects under one contract when desired.

Does APLA build room additions in Van Nuys?

Yes. APLA (CA Lic #1136359) serves Van Nuys, Sherman Oaks, North Hollywood, Encino, and the central Valley. Call (818) 818-4419 for a free addition consultation.

Contact APLA for Your Van Nuys Room Addition

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

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