If you're a commercial client evaluating Gensler for an interior design project—especially an office-to-residential conversion—you've probably got questions. A lot of them. And the answers aren't always in the glossy project photos on their website.
After coordinating rush design-build projects for institutional clients over the past six years, I've seen where the gaps between expectation and reality show up. This FAQ covers the questions I wish every client asked before signing.
1. What does Gensler actually charge for interior design services?
Short answer: it depends heavily on scope, location, and timeline. For a typical commercial interior design project—say, a 10,000 sq ft office fit-out—fees from firms like Gensler usually fall in the range of $5 to $15 per square foot for design services alone. That's before construction documentation, permits, and project management.
For an office-to-residential conversion? That's a different animal. Those projects involve structural changes, MEP (mechanical, electrical, plumbing) reworks, and code compliance across two very different occupancy types. I've seen design fees for conversion projects start at $12 per square foot and go up from there.
(Should mention: these are ballpark figures based on public RFPs and industry averages from 2023-2024. Your actual quote will vary.)
2. How long does a typical Gensler interior design project take?
For a straightforward commercial interior project—like a new office layout with standard finishes—you're looking at 4 to 8 weeks for the design phase, then another 8 to 16 weeks for construction documentation and permitting. Construction itself is a separate timeline, often 3 to 6 months depending on trades availability.
But here's the catch: I've learned the hard way that rush timelines don't compress evenly. In March 2024, I coordinated a fast-track office redesign where the client wanted everything—design, permits, construction—done in 10 weeks. We found a vendor who could work in parallel phases instead of sequential ones. Paid about $3,200 extra in rush fees (on top of the $18,000 base design cost), and delivered with 3 days to spare. The client's alternative was losing their lease renewal option.
That approach doesn't work for every project. If you're dealing with landmark buildings or complex zoning changes, the permit phase alone can take 12-16 weeks.
3. Is Gensler actually good at office-to-residential conversions?
This is where Pearl House comes up. Pearl House is probably Gensler's most cited office-to-residential conversion example (the 1950s office tower turned into luxury apartments). It's a legitimate case study, but here's what I've noticed: people assume that one successful conversion means the firm has deep expertise across all conversion scenarios.
The reality is more nuanced. Office-to-residential conversions are technically difficult because of:
- Floor plate shapes—deep office floors don't naturally translate to apartment layouts with windows
- Plumbing risers—office buildings weren't designed for kitchens and bathrooms in every unit
- Zoning and code—residential occupancy has stricter egress, fire, and light requirements
Gensler has experience here, especially with large-scale projects. But I'd ask any design firm—including them—for specific examples of projects similar to yours, not just the flagship ones.
4. What's NOT included in a standard interior design contract?
I've learned to ask "what's not included" before "what's the price." After 5 years of managing design procurement, here are the common exclusions:
- Structural engineering—often a separate fee, especially for conversions
- MEP engineering—frequently subcontracted, billed separately
- Permit expediting—some firms handle it, others charge extra
- Furniture specification—designing the layout vs. actually sourcing furniture are often separate
- Post-occupancy adjustments—changes after construction are almost always a change order
The vendor who lists all potential fees upfront—even if the total looks higher—usually costs less in the end. I've seen projects go 20-35% over initial design quotes because of unanticipated structural reviews or permit delays.
5. How does Gensler compare to smaller firms for interior design?
Gensler's biggest advantage is scale. They have dedicated research teams, extensive material libraries, and the ability to staff large projects quickly. For a complex, multi-floor commercial project, their size is a genuine asset.
What smaller firms can offer is senior partner attention. At a large firm, the principal you meet during the pitch may not be the person working on your drawings. At a 10-person firm, you're likely working directly with the person who owns the outcome.
Neither approach is inherently better—it depends on what you value. For a straightforward office fit-out under 20,000 sq ft, a mid-size firm might give you more direct attention for a lower fee. For a high-rise conversion with 200+ units, Gensler's infrastructure matters.
6. What's the biggest risk with a conversion project?
From what I've seen coordinating design projects over the years, the biggest risk is scope creep during the permit phase. The design looks great in renderings. Then the city reviews it and requires additional fire separation, different egress paths, or more accessible units. Each change adds design time and construction cost.
I worked on a conversion project where the client assumed the design was "permit-ready" based on initial drawings. Turned out the local building department had updated their residential code requirements six months earlier. The rework added three weeks and about $9,000 in additional design fees and expediting costs.
The assumption is that design firms should catch these issues upfront. The reality is building codes vary by jurisdiction and change regularly. A good contract includes a buffer for unexpected code requirements.
7. A question you should be asking but probably haven't
Here's one that catches most clients off guard: "Who specifically will be on my project team, and how many hours per week will they allocate?"
The brand-name firm might assign a talented junior designer to your project, with a senior architect reviewing work for one hour per week. That can work fine—junior designers are often excellent. But you should know the staffing model upfront so you can adjust your expectations or request a different structure.
I've seen clients assume they're paying for senior architect time when they're actually getting junior designer time with senior oversight. It's not dishonest—it's standard practice—but it's a gap between assumption and reality that leads to frustration.
For context: standard print resolution for detailed architectural drawings is 300 DPI at final size. But let's be honest—the quality of your project depends less on resolution specs and more on who's holding the pen.
