Commercial interior design cost is one of the first questions every business owner asks, and it's a harder one to answer with a single number than a residential remodel. A home has one owner making decisions about one space. A commercial project has a brand to express, a budget approved by stakeholders, customers or employees who'll use the space every day, and — depending on the project — building codes and ADA requirements that don't bend. All of that affects the number.
We've designed offices, retail spaces, and hospitality environments across Los Angeles and South Florida. Here's how we think about cost at every level, and what actually drives the difference between a $20,000 design engagement and a $500,000 build-out.
Why commercial costs vary more than residential
A few factors make commercial cost ranges wider than what you'd see for a home:
Space type. An office, a boutique, and a restaurant have almost nothing in common cost-wise. A restaurant needs commercial kitchen equipment, grease trap plumbing, and health-department-compliant finishes. An office mostly needs furniture, lighting, and acoustic planning. Retail sits somewhere between the two, with fixtures and display systems as the biggest variable.
Code and ADA compliance. Commercial spaces open to the public — retail, restaurants, hospitality — carry accessibility and life-safety requirements that residential projects don't. Ramps, restroom clearances, egress widths, and fire-rated materials aren't optional, and they add cost that isn't always visible in a mood board.
Design vs. design-plus-construction. A lease-ready office suite that only needs furniture and finishes is a very different budget than a raw, unfinished shell that needs full tenant improvement construction — new walls, electrical, HVAC, and plumbing — before design even starts.
Commercial Design
Cost by project type
With those factors in mind, here's how we generally see commercial budgets break down in the LA market:
$15,000–$40,000 — Design services for a small office or retail fit-out. This covers design fees for a space that's largely move-in ready: furniture selection, finishes, lighting plan, and brand-aligned styling, without major construction. Realistic for a small suite, a single retail location, or a showroom refresh.
$75,000–$150,000 per 1,000–2,000 sq ft — Full office tenant improvement. This is the typical range for a comprehensive office build-out: space planning, custom millwork, a considered lighting and acoustic plan, brand integration, and coordination with contractors on electrical, data, and HVAC. Multi-location or multi-floor projects scale from here.
$100,000–$250,000+ — Retail build-out. Retail costs swing widely based on fixture complexity, custom millwork, and finish level — a minimalist boutique costs less per square foot than a flagship location with custom display systems and layered lighting built to drive conversion.
$200,000–$500,000+ — Restaurant and hospitality. This is consistently the most expensive commercial category, driven by commercial kitchen equipment, specialized MEP work (grease traps, hood systems, walk-in refrigeration), and finishes that need to withstand heavy daily use while still delivering atmosphere.
What drives the numbers within a project type
Inside any of those ranges, a handful of decisions move the total significantly:
FF&E (furniture, fixtures & equipment). Commercial-grade furniture — built for daily heavy use and often required to meet fire and durability codes — costs more than residential-grade product, even when it looks comparable. Budgeting accurately here matters more in commercial work than almost anywhere else.
Brand integration. Custom signage, branded finishes, and bespoke millwork built around a specific brand identity cost more than off-the-shelf commercial finishes, but they're often the difference between a space that looks like every other office and one that actually reflects the company.
MEP work. Mechanical, electrical, and plumbing changes — especially for restaurants and any space adding plumbing or reconfiguring HVAC — are typically the least visible line item and the most likely to be underestimated in early budgeting.
Timeline and business disruption. A build-out phased around an operating business — working nights and weekends to avoid closing a retail location, for example — costs more in labor than a vacant space with an open timeline.
Commercial Design
Hidden costs that catch business owners off guard
Beyond the obvious line items, a few categories routinely surprise first-time commercial clients:
Permitting timelines. Commercial permitting in LA can take longer than residential, particularly for restaurants and any project touching life-safety systems. That timeline is a real cost if you're paying rent on a space that isn't generating revenue yet.
Furniture lead times. Commercial-grade furniture from quality manufacturers often has longer lead times than residential furniture, and ordering late is one of the most common causes of a delayed opening.
Signage and branding integration. Exterior signage, wayfinding, and branded environmental graphics are frequently budgeted separately from the interior design scope — and frequently forgotten until late in the project.
Multi-location scaling. If you're planning to roll a design out across multiple locations, the first location costs more per square foot than the ones that follow, since the design system, vendor relationships, and specifications are being built for the first time. Budget the first location accordingly, and expect efficiency gains after.
How to approach budgeting
The same principle that works for residential budgeting applies here, adapted for business: define your non-negotiables early. For most commercial clients, that's a short list — the brand experience at the entrance, the quality of the customer- or employee-facing finishes, or a specific piece of equipment — with more flexibility everywhere else. Build the budget out from those fixed points.
A contingency of 15–20% is standard on commercial projects, the same as residential — arguably more important here, since code requirements and MEP work can surface mid-project in ways that are harder to predict from a walkthrough alone.
If you're planning an office, retail, or hospitality project in Los Angeles or South Florida and want to talk through scope and budget, explore our commercial interior design service or get in touch directly. We're happy to walk through the numbers before any commitment is made.
