Commercial Construction in Los Angeles — TI, Ground-Up, Restaurant, Medical, Light-Industrial
Here is the honest version. LA commercial construction is a different animal from residential. Occupancy classification (B, M, A-2, A-3, F-1, S-1, I-2) drives the entire code path. CBC 11B ADA Path-of-Travel triggers on tenant improvement above a 20% valuation threshold and quietly adds $20-80K of accessible-route, restroom, parking, and signage scope. Restaurant work needs Type I hood, grease trap, LADBS Public Health Department sign-off, and 9-15 month timelines. Medical office needs HIPAA-aware electrical, dedicated circuits, lead-shielded radiology if imaging is in scope, and OSHPD-3 oversight on some procedures. Fire-sprinkler NFPA 13 is design-build and the deferred submittal can hold up final occupancy. We hold a CSLB B General Building license (license #1105249) that covers Type V-A and V-B construction up to 3 stories, commercial tenant improvement, restaurant, medical office, office HQ, and light-industrial in the Carson, Vernon, Commerce, City of Industry corridor. 2026 LA commercial pricing: TI office $85-180/sqft, restaurant $200-500/sqft, medical office $375-950/sqft, light-industrial $120-280/sqft, ground-up $280-650/sqft. We tell you where your project sits before you sign anything.
Occupancy Classification — The Code Path That Drives Everything
Every commercial project starts with occupancy classification under the California Building Code. B (business — office, professional services). M (mercantile — retail). A-2 (assembly — restaurant, bar, nightclub). A-3 (assembly — community center, lecture hall). F-1 (factory moderate hazard). S-1 (storage moderate hazard). I-2 (institutional — outpatient clinic, some medical). The occupancy class drives means of egress, occupant load calc, fire-sprinkler requirements, exiting width, restroom count and accessibility, ventilation rates, and energy code path. Misclassifying occupancy at design is the single most expensive mistake on a commercial project — every downstream calc compounds the error. We confirm classification with LADBS before schematic design lock-in.
Commercial Tenant Improvement (TI) — Where Most LA Commercial Work Lives
Tenant improvement is the bulk of LA commercial construction by project count. Office TI: demising walls, MEP redistribution, finish package, demising-wall acoustic rating to CAC 50-55, dedicated AV/IT rooms with proper cooling, ADA Path-of-Travel triggered above 20% valuation threshold (CBC 11B-202.4). Office TI 2026 pricing: $85-180/sqft turnkey including permits, finishes, MEP, FF&E coordination. Retail TI: storefront, signage permit, demising, MEP, finishes, ADA. Restaurant TI is its own category — see next section. Medical office TI is its own category — see section after. Light-industrial TI in Carson, Vernon, Commerce, City of Industry: industrial bays, demising, dock-high or grade-level loading, three-phase 480V service, fire-sprinkler NFPA 13 design-build. Light-industrial 2026 pricing: $120-280/sqft.
Restaurant Construction — Type I Hood, Grease, LADBS + Health Department, 9-15 Month Timelines
Restaurant work is the highest-permit-complexity TI you will run. Type I hood (commercial kitchen exhaust with grease removal) is design-build by a UL-listed contractor, the makeup-air calc has to balance the hood draw against the dining-room HVAC, the grease trap or interceptor is sized by LADBS and approved by the LA County Department of Public Health (LACDPH), the plumbing rough-in has to clear LACDPH plan check before drywall closes, the hood and suppression system needs UL-300 fire-suppression with annual inspection, the dining room needs A-2 occupant-load calc + accessible-route compliance, the bar (if A-2 alcohol service) layers ABC license coordination on top, and the exterior signage needs a separate permit. Restaurant TI 2026 pricing: $200-500/sqft, $500-900/sqft on high-end concepts with custom millwork and feature ceilings. Timeline 9-15 months from permit application to grand-opening soft launch. Most of the 9-15 months is plan check, not construction. We have run restaurants in WeHo, DTLA, Santa Monica, and the Valley. We know LACDPH, we know Type I hood UL-listed installers, and we know which structural complications come up in older warehouse conversions.
Medical Office, HIPAA-Aware Electrical, OSHPD-3 — The Healthcare TI Reality
Medical office TI runs higher per-sqft than other TI for real reasons. HIPAA-aware electrical means dedicated circuits for medical-records workstations and isolation transformers in imaging rooms. Lead-shielded radiology if X-ray, CT, or fluoroscopy is in scope (Type III shielding analysis required, certified physicist sign-off). OSHPD-3 oversight applies to outpatient clinics with certain procedure rooms (not all medical office, but enough of it that you need to confirm at occupancy classification). Negative-pressure isolation rooms (TB, COVID-era retrofit demand) require dedicated exhaust and balanced HVAC. ADA accessibility above the standard CBC 11B threshold (medical facilities have stricter accessible-route, accessible-exam-room, and accessible-restroom standards). Sterilization area, autoclave 240V dedicated, sharps disposal, medical gas pipeline if dental/surgical/oxygen is in scope. Medical office TI 2026 pricing: $375-950/sqft depending on procedure mix. Dental office on the lower end, multi-specialty clinic with imaging on the higher end. Surgical suite higher still.
ADA Path-of-Travel CBC 11B — The Hidden Scope That Catches Owners by Surprise
CBC 11B-202.4 requires Path-of-Travel upgrades when a TI exceeds 20% of the assessed building value (or per LADBS interpretation, 20% of replacement cost — confirm with plan check). Path-of-Travel means accessible route from public way to the altered space, accessible parking, accessible restroom, accessible drinking fountain, accessible signage. On older LA buildings (pre-1990 ADA, pre-2008 CBC 11B), the Path-of-Travel scope can add $20-80K to a TI that the owner did not budget for. We do an ADA pre-assessment at schematic design — we walk the building, identify the Path-of-Travel scope, price it, and tell you whether the 20% threshold will trigger. If it triggers, we phase the work or apply for hardship exemption where the cost-disproportionality test applies.
Fire-Sprinkler NFPA 13 Design-Build, Deferred Submittal, and Final Occupancy
Fire-sprinkler design on commercial is design-build by a C-16 licensed sprinkler contractor under deferred submittal. The deferred submittal hits the LADBS fire plan-check counter after the main permit issues, sprinkler shop drawings get approved, hydraulic calcs get reviewed, and the installation has to be tested and signed off before final occupancy. The deferred submittal can hold up your certificate of occupancy by 4-12 weeks if it is not coordinated from day one. We coordinate fire-sprinkler design at schematic so the deferred submittal goes in cleanly and tracks alongside the main construction. Fire alarm is similar — separate C-10/C-7 contractor, separate plan check, separate test-and-sign-off.
What NP Line Design Brings to the Job
We are a design-build GC with a CSLB B General Building license (license #1105249) — covers Type V-A and V-B construction up to 3 stories, commercial tenant improvement, restaurant, medical office, office HQ, light-industrial. Architectural design since 2016. Own GC crews since 2023. 200+ completed LA-region projects. BBB A+ accredited. ADA Path-of-Travel pre-assessment at schematic design. Occupancy classification confirmed with LADBS before lock-in. LACDPH coordination on restaurant projects. OSHPD-3 awareness on medical office. Fire-sprinkler NFPA 13 design-build coordinated from day one. Cost reconciliation at every phase. Fixed-scope construction contract at the end of design development. In-house crews on structural and finish-critical scope, vetted long-term subs everywhere else. Weekly written progress updates with photos. A clean handover binder at closeout — permits closed, warranties registered, manuals digitized, 12-month workmanship warranty in writing. (For commercial locker-room specialty work, see our dedicated commercial-locker-room-construction page.)
2026 LA Commercial Construction Pricing — Where Your Project Lands
Office TI: $85-180/sqft turnkey. Retail TI: $90-220/sqft. Restaurant TI: $200-500/sqft, $500-900/sqft high-end. Medical office TI: $375-950/sqft. Light-industrial TI (Carson, Vernon, Commerce, City of Industry): $120-280/sqft. Ground-up commercial: $280-650/sqft depending on use, structural system, and finish level. The bottom of each band is well-scoped, code-minimum-or-just-above with standard finishes. The top is custom millwork, premium finishes, and the documentation that drives commercial-real-estate cap rates. Most LA commercial clients land in the middle third. We show you exactly where your project sits and why.
How the First 30 Days Actually Go
Day 1-3: free 30-minute scoping call. We walk the building, look at existing occupancy, look at MEP capacity, look at structural, look at ADA Path-of-Travel. We tell you on the spot what the realistic cost band looks like and whether the 20% Path-of-Travel threshold will trigger. Day 4-10: design-build proposal — phase fees, deliverables, schedule, cost band, occupancy classification memo. Day 11-20: schematic design, ADA pre-assessment, LADBS pre-submittal coordination. Day 21-30: design development, MEP coordination, fire-sprinkler deferred-submittal coordination, ±10% cost band. After that, construction documents, plan check, procurement, construction — all under the same contract.
Frequently Asked Questions
What does commercial construction cost in LA in 2026?
Office TI $85-180/sqft, retail TI $90-220/sqft, restaurant TI $200-500/sqft ($500-900/sqft high-end), medical office TI $375-950/sqft, light-industrial TI $120-280/sqft, ground-up commercial $280-650/sqft. Most LA clients land in the middle third of those bands. We write a written scope-and-cost letter tied to your specific occupancy, building, and program.
What does CBC 11B ADA Path-of-Travel trigger and when does it apply?
Triggers on TI exceeding 20% of assessed building value (or replacement cost per LADBS interpretation). Adds accessible route, parking, restroom, signage, drinking fountain scope — typically $20-80K on older LA buildings. We do an ADA pre-assessment at schematic so the trigger is identified before you commit to a budget.
How long does restaurant construction actually take?
9-15 months from permit application to soft launch. Most of that is plan check at LADBS and LA County Department of Public Health, not construction. Type I hood, grease interceptor, ABC alcohol coordination, ADA, and fire-sprinkler all run on parallel tracks. We sequence the submittals so they do not hold each other up.
Are you licensed for commercial work?
Yes. We hold a CSLB B General Building license (license #1105249), which covers Type V-A and V-B construction up to 3 stories — covers commercial TI, restaurant, medical office, office HQ, retail, light-industrial. For Type I or Type II construction (high-rise concrete and steel), we partner with specialty GCs. We carry general liability and workers' comp. BBB A+ accredited.
Do you handle medical office TI?
Yes. We have run dental, multi-specialty, and outpatient-imaging medical office TI in LA. Includes HIPAA-aware electrical, lead shielding analysis, OSHPD-3 awareness, accessible-exam-room compliance, sterilization area, medical gas pipeline if in scope. We coordinate with the certified physicist on shielding and with OSHPD-3 when the occupancy classification requires it.
Do you handle Type I hood and grease trap on restaurant work?
Yes. We coordinate the Type I hood design-build through a UL-listed installer, balance the makeup-air calc against dining-room HVAC, size the grease interceptor to LACDPH spec, and clear the plumbing rough-in at LACDPH plan check before drywall closes. We have done this enough to know which inspectors want what.
How does fire-sprinkler NFPA 13 deferred submittal work?
Fire-sprinkler is design-build by a C-16 licensed sprinkler contractor under deferred submittal — meaning the sprinkler shop drawings and hydraulic calcs hit plan check after the main permit issues. We coordinate the sprinkler contractor from day one so the deferred submittal does not hold up your certificate of occupancy. Same pattern on fire-alarm under C-10/C-7.
What is your warranty?
12-month written workmanship warranty on everything we build, plus the manufacturer warranties on every product we install — registered for you, not just left in a box. Commercial roof manufacturer warranties typically 15-30 years. Fire-sprinkler systems carry standard 1-year installer warranty plus product warranties. All of it documented in the handover binder.
Ready to scope a real number for your LA commercial project? Book the free 30-minute scoping call. We will walk the building, confirm occupancy classification with LADBS pre-submittal, run an ADA Path-of-Travel pre-assessment, and send you a design-build proposal with phase fees, schedule, and a 2026 cost band you can take anywhere for a true apples-to-apples comparison. No pressure, no obligation, no slide deck. Call (818) 900-7479 or visit nplinedesign.com — CSLB #1105249, BBB A+, 200+ LA builds.
(818) 605-1388 · Netanel Presman · NP Line Design · CSLB GC #1105249 · BBB A+