Designing a medical office building or healthcare facility is not a variation on standard commercial office work. It’s a different building type with a different regulatory framework, different engineering requirements, and different consequences when those requirements are not met. A clinic that fails its state licensing inspection because exam room ventilation doesn’t meet ASHRAE 170 standards doesn’t open on schedule — and the cost of reworking installed mechanical systems is orders of magnitude higher than getting the design right the first time.
This page covers what healthcare facility and medical office design involves, what makes it distinct from standard commercial work, and what the healthcare market in Asheville and Western North Carolina looks like for developers, health systems, and independent practice owners planning new facilities.
The gap between Group B office and medical office is not cosmetic. It runs through every major building system — mechanical, electrical, plumbing, structural, and the architectural finishes that support infection control. The following breakdown covers the primary differences a healthcare facility architect manages that a standard commercial architect does not.
ASHRAE/ASHE Standard 170 (Ventilation for Health Care Facilities), incorporated by reference into the FGI Guidelines for Design and Construction of Hospitals and Outpatient Facilities, establishes minimum ventilation requirements by room type. These requirements are not the same as ASHRAE 62.1, which governs standard commercial ventilation. They are substantially more demanding, and they cannot be retrofitted inexpensively after mechanical systems are installed.
Key ASHRAE 170 benchmarks:
A published assessment of outpatient clinic ventilation in PubMed Central (PMC8052498) found that 10% of clinic rooms did not meet ACH minimums for standard exam rooms, 39% failed treatment room minimums, and 83% failed for higher-acuity room classifications — despite having functional HVAC equipment installed. Only 10% of clinic rooms showed good air mixing (smoke dispersal under 10 seconds); 62% showed poor mixing with dispersal times exceeding 20 seconds. This is not a failure of maintenance — it’s a failure of design. The systems were installed; they just weren’t designed correctly for healthcare-specific performance.
Good air mixing, directional airflow, and the specific ACH minimums by room type require a mechanical engineer with ASHRAE 170 experience working in close coordination with an architect who knows how room configurations affect airflow patterns. It is a specialized body of knowledge, and it matters.
Standard Group B offices require restrooms scaled to occupant load. Medical offices require hand-washing sinks in every exam room — a requirement driven by CDC infection control guidance and the FGI Guidelines, not by the IBC’s minimum restroom fixture count. A 10-exam-room clinic has 10 sinks that do not exist in a comparable standard office. That’s 10 rough-in locations, 10 waste connections, and 10 supply connections running through walls that also need to accommodate power, data, and medical gas in some cases.
Additional plumbing requirements may include eyewash stations in laboratory areas, medical gas piping (oxygen, vacuum, nitrous oxide) where clinical procedures require it, and backflow prevention on all water supply connections per the NC Plumbing Code.
Medical office buildings require hospital-grade duplex receptacles (NEMA 5-20R hospital grade) at clinical locations. NFPA 99 (Health Care Facilities Code) governs essential electrical systems — the branch circuits, equipment systems, and lighting systems that must remain energized during a power outage. This means emergency generator sizing and transfer switch design are part of the architectural scope from the beginning, not an afterthought added by the electrical engineer.
Certain procedure rooms require isolated power systems to prevent microshock risk. The threshold for when isolated power is required depends on the procedures performed and the classification of the space — a determination the architect makes in coordination with the owner’s clinical operations team before the design is finalized.
Flooring in clinical areas needs to be seamless sheet vinyl with integral coved base — no seams, no grout lines, no transitions that collect contaminants between floor and wall. Painted gypsum wallboard is inadequate at wet locations and high-traffic clinical areas; washable epoxy or PVC wall panel systems are standard. Ceilings in exam and procedure rooms are typically lay-in tile or gypsum — but with cleanable surfaces and no open plenum at clinical areas. These are infection-control requirements, not aesthetic preferences, and they add meaningfully to the cost per square foot relative to standard office finishes.
HIPAA is an information regulation, not a building code. But complying with HIPAA in practice requires building design that makes private conversations private. The specific design interventions include sound-masking systems (typically 45–50 dB pink noise in clinical corridors and waiting areas), minimum 5-foot setbacks between patient check-in counters and waiting seating, STC 45 or higher wall assemblies between exam rooms and adjacent spaces, and screen privacy measures at registration workstations. These requirements should be established in the programming phase — retrofitting acoustic privacy after construction is expensive and rarely fully effective.
The most effective medical office floor plans separate on-stage spaces (where patients go) from off-stage spaces (where staff work and communicate). Pod-based exam room clusters — groups of four to six rooms served by a shared provider work core — reduce staff travel distances, improve patient throughput, and create visual supervision of multiple rooms simultaneously. Separate patient and provider circulation corridors, where building size permits, further reduce cross-traffic and improve the patient experience.
Telemedicine-ready exam rooms now need a power and data infrastructure that supports video consultation, which means planning for mounting locations, lighting that works for on-screen presentation, and acoustic treatment that prevents background noise from entering calls.
The most common medical office type in WNC is the primary care practice — 4–12 exam rooms, provider offices, nurse stations, a patient waiting area, and a reception and check-in zone. These facilities operate under Group B occupancy in the IBC and are subject to ASHRAE 170 and FGI outpatient guidelines but do not require the more intensive systems (isolated power, negative-pressure rooms, sterile processing) that surgical or specialty facilities need.
Urgent care is the fastest-growing healthcare real estate category in the Asheville/WNC market. Form & Function designed Range Urgent Care facilities in Asheville and Black Mountain — projects that required fast-track permitting alongside full ASHRAE 170 and FGI compliance for a higher-acuity outpatient environment. Urgent care centers typically include X-ray capability, procedure rooms, and point-of-care laboratory functions, each with specific ventilation, plumbing, and electrical requirements.
Specialty clinics — orthopedics, behavioral health, dental, physical therapy, dermatology — each carry specific room-type requirements under ASHRAE 170 and the FGI Guidelines. A behavioral health facility has different acoustic requirements and ligature-resistance standards than an orthopedic clinic. A dental facility requires medical gas (nitrous oxide), specific vacuum systems, and amalgam separator plumbing. Understanding which specific requirements apply to your specialty is not something to learn during permit review.
Form & Function’s work on the Appalachian Mountain Community Health Center at Dale Fell represents the studio’s experience with Federally Qualified Health Centers — a category of facility that carries additional regulatory complexity around federal program requirements, accessibility standards, and the specific design expectations of organizations serving underserved populations.
Mission Health, acquired by HCA Healthcare in 2019, anchors the WNC healthcare market with its flagship facility at 509 Biltmore Avenue and a growing network of outpatient locations across the region. The acquisition shifted the local healthcare landscape toward a more vertically integrated care delivery model, with increased emphasis on ambulatory and urgent care facilities that bring services closer to where patients live.
The urgent care segment specifically has expanded steadily across Buncombe, Henderson, Madison, and Haywood counties. Patients across WNC have shown clear preference for urgent care over emergency rooms for non-life-threatening conditions — a behavior shift that continues to drive demand for well-designed outpatient facilities in accessible locations.
Telehealth expanded dramatically during the COVID-19 pandemic and has retained a meaningful share of primary care visits, but it has not reduced physical facility demand. If anything, it has made the in-person visit more purpose-specific — patients who come in are typically there for something that requires hands-on assessment or procedure, which raises the clinical intensity of the average visit and the corresponding design requirements for the space.
Post-Helene, healthcare facilities in WNC face the same resilience requirements as other commercial buildings — mechanical and electrical equipment elevated above the 100-year floodplain, site stormwater management meeting updated standards — plus specific concerns about generator fuel storage, backup water supply, and communication system redundancy that matter more for a healthcare facility than a standard office.
Before signing a contract with any architect for a medical office or healthcare facility project in WNC, ask the following:
ASHRAE 170 fluency. Can they describe how ASHRAE 170 requirements differ from ASHRAE 62.1 for standard commercial buildings? Can they explain what “all-exhaust” means for an AII room and why recirculation is prohibited?
FGI Guidelines experience. Have they used the FGI Guidelines for Design and Construction of Hospitals and Outpatient Facilities as a primary design reference? Which edition? Do they understand how the guidelines have evolved across recent cycles?
MEP coordination approach. Who is their mechanical engineer of record for healthcare projects? How early is that engineer engaged in the design process? Do they use BIM to coordinate architectural and MEP models before construction documents are issued?
NC DHSR experience. Has the firm navigated NC Division of Health Service Regulation review for licensed healthcare facilities? DHSR review applies to certain facility types — particularly those that require state operating licenses — and it runs parallel to the building permit process. Missing DHSR requirements at the construction documents stage creates expensive corrections.
Construction administration commitment. Healthcare projects have more field complexity than standard commercial work — medical gas rough-ins, infection-control partition details, equipment connections, generator commissioning. Ask how many site visits happen during construction and who is responsible for reviewing MEP shop drawings against the ASHRAE 170 and FGI requirements.
ASHRAE/ASHE Standard 170 is the national standard for ventilation in health care facilities. It establishes minimum air changes per hour, outside-air percentages, pressure relationships between rooms, and filtration requirements for every room type in a healthcare building. It is incorporated by reference into the FGI Guidelines, which are the primary design standard for outpatient facilities. NC’s adoption of the 2021 IBC through the 2024 NC State Building Code makes these requirements enforceable for permitted healthcare construction. A clinic that doesn’t meet ASHRAE 170 won’t pass its state inspection.
Yes. CDC infection control guidelines and the FGI Guidelines both require hand-washing facilities at or near the point of care. In practice, that means a dedicated hand-washing sink in each exam room. This is a fundamental difference from standard office design and one of the primary drivers of increased plumbing cost in medical office buildings compared to equivalent-size commercial offices.
Group B (business) covers outpatient facilities where patients are not kept overnight — primary care clinics, urgent care centers, specialty ambulatory care. Group I (institutional) covers facilities where patients are admitted for 24-hour care, such as hospitals and nursing homes. Group I carries significantly more intensive egress, structural, and fire protection requirements. Most new healthcare construction in WNC is outpatient Group B, but the line between Group B and Group I can be affected by the specific services offered — a facility that holds patients for observation or has surgical suites with overnight capability may require Group I analysis.
You can occupy standard commercial space for a medical practice, but the space must be brought into compliance with ASHRAE 170 ventilation requirements, hand-washing sink requirements, ADA clearances at exam tables and accessible toilet rooms, and the electrical requirements of NFPA 99 before you can open for clinical operations. The cost of upgrading a standard commercial space to healthcare standards is often comparable to building out a space that was designed for healthcare from the beginning — and the process is typically more disruptive because systems that need to be replaced are already installed.
The NC Division of Health Service Regulation reviews construction documents and inspects facilities for certain licensed healthcare categories — hospitals, nursing homes, adult care homes, home health agencies, and others. If your facility type requires a state operating license, DHSR review is part of the regulatory path to opening. The DHSR review runs parallel to the building permit process, and comments from DHSR must be resolved before the facility can be licensed for operation. Your architect should identify whether DHSR review applies early in the project and coordinate the submission timeline accordingly.
HIPAA is an information regulation — it governs how patient information is handled, not how buildings are constructed. But in practice, making a clinic HIPAA-compliant requires design decisions that protect verbal and visual privacy: acoustic isolation between check-in and waiting areas, sound-masking systems in corridors, STC-rated walls between exam rooms, and screen privacy measures at registration workstations. These are design-phase decisions that cannot be adequately added after construction is complete.
Healthcare construction in WNC is more expensive per square foot than standard commercial office — driven by the cost of ASHRAE 170-compliant mechanical systems, hospital-grade electrical, medical-grade finishes, and the engineering complexity of healthcare-specific coordination. Published national benchmarks range from $400–$650 per square foot for ground-up medical office construction, but WNC costs have shifted post-Helene and should be confirmed with current general contractor input before budgeting. Contact Form & Function directly for guidance on your specific project type and scope.
Form & Function Architecture has designed healthcare and medical office facilities across the Asheville region, including urgent care centers, community health centers, and specialty clinics throughout Buncombe and Henderson counties. The studio brings the regulatory fluency — ASHRAE 170, FGI Guidelines, NFPA 99, NC DHSR — and the MEP coordination experience that healthcare projects demand.
Contact Form & Function at 828.575.2423 or info@ffarchitecture.com to schedule a site visit and discuss your project.
