Medical office site development in North Georgia
Last updated: November 2026
Quick answer: A medical office building is designed at 3.5 to 7 parking spaces per 1,000 square feet, requires 10 percent of patient parking to be accessible (20 percent for rehabilitation facilities), runs a longer inspection sequence than general office, and may add 30 to 90 days of state plan review if the tenant is a permitted healthcare facility. A realistic range from land closing to certificate of occupancy in Cherokee, Forsyth or Fulton County is 14 to 22 months without rezoning. Mack Engineering provided full civil engineering for the Union Hill Medical Building in Canton and is civil engineer of record for the Hickory Flat Medical Building, with one engineer of record accountable from feasibility through permit and closeout.
Key takeaways
- A medical office building is not a general office with a different sign. Parking, accessible design, inspections and possibly a state reviewer all differ.
- Parking is the first number. An engineer who copies the office ratio into a medical site plan creates a problem the tenant discovers on opening day.
- Accessible parking is a ratio: 10 percent of patient and visitor spaces for outpatient facilities, 20 percent for rehabilitation and physical therapy.
- Ambulatory surgery, infusion, dialysis and inpatient uses add Department of Community Health review. Ask about the tenant program at feasibility.
- Mack engineered the Union Hill Medical Building in Canton and is engineer of record on the Hickory Flat Medical Building; both have case studies.
A medical office building is not a general office with a different sign.
Parking demand is higher. Accessible parking ratios are stricter. The inspection sequence is longer. Some tenants trigger state plan review on top of the county. Get any of those wrong at the concept stage and the tenant finds out on opening day.
Mack Engineering provided full civil engineering for the Union Hill Medical Building in Canton (7.49 acres, 20,000 square feet) and is civil engineer of record for the Hickory Flat Medical Building, with one engineer of record accountable from feasibility through permit and closeout.
Who we work with
- Healthcare practice owners building their own facility.
- Developers delivering medical office for lease, including portfolio developers who want one engineer across several sites.
- Architects and general contractors who need a civil partner that understands medical parking and access.
- Hospital systems and specialty operators placing outpatient facilities in growing corridors.
What makes a medical office site different?
Parking is the first number
Medical office is designed at 3.5 to 7 spaces per 1,000 square feet, roughly three spaces per exam room, per published healthcare real estate guidance such as the MedWest Realty medical office parking guide and the parking demand data we carry from our own medical sites. General office is 2.5 to 4. Walk-in clinics, urgent care and physical therapy run to the high end.
Local zoning often defaults to the office ratio. An engineer who copies it into the site plan creates a problem the tenant discovers on opening day. We size parking from the tenant’s program before the building is placed.
Accessible parking is a ratio, not a space
Standard accessible parking is about 4 percent of spaces. Under the ADA accessible parking standards, outpatient medical facilities require 10 percent of patient and visitor spaces to be accessible, and rehabilitation and physical therapy facilities require 20 percent. Van spaces, accessible routes from parking to the entrance and door clearances are set on the civil plan, not fixed later.
Some tenants add a state reviewer
A physician practice is reviewed by the county only. An ambulatory surgery center, infusion suite, dialysis facility or any inpatient capability is a permitted healthcare facility reviewed by the Georgia Department of Community Health Office of Health Planning Design and Construction. That adds 30 to 90 days. We ask about the tenant program at feasibility so the schedule is right from the start.
Everything competes for the same frontage
Patient drop off, ambulance access where required, emergency vehicle access and drive aisle geometry all want the same ground as parking. On Union Hill, the balance between building footprint, medical parking count, drive aisle geometry and emergency access was the design problem that set the site plan.
What we do on a medical office site
- Pad site feasibility: zoning and use, parking and building yield at the medical ratio, stormwater footprint, utility and fire flow availability, access and DOT. See commercial due diligence and feasibility.
- Concept site plan with parking yield and accessible layout. See site planning.
- Zoning exhibits and rezoning or special use support where the use is not permitted by right.
- Land disturbance permit plan set and stormwater and hydrology report. See stormwater design and hydrology studies.
- Grading, retaining walls, utilities and fire protection coordination with the water and sewer authority.
- NPDES Notice of Intent and erosion control.
- Construction administration through CO, including fire alarm and sprinkler acceptance coordination, accessibility verification and environmental health where the site is on septic or well.
Mack perspective: On Union Hill the lot was a former outdoor storage yard, and the first civil decision was whether the storage yard elevations could become a buildable pad without an earthwork bill that killed the medical use. That question was answered in feasibility, before closing. It is the same order we follow on every medical site: parking yield and pad cost first, everything else second. Read the Union Hill case study.
How long does a medical office take from land to CO?
A realistic range for a ground-up medical office in Cherokee, Forsyth or Fulton County is 14 to 22 months from land closing to certificate of occupancy without rezoning, and 18 to 28 months with it. The full breakdown is in our medical office permit to CO timeline.
| Phase | Typical duration |
|---|---|
| Due diligence and feasibility | 30 to 60 days |
| Concept design and program | 30 to 45 days |
| Rezoning if required | 3 to 6 months |
| Construction documents | 60 to 90 days |
| Plan review and permitting | 60 to 120 days, plus 30 to 90 days if DCH review applies |
| Site work and shell | 6 to 10 months |
| Tenant fit-out | 2 to 4 months |
| Inspections and CO | 4 to 8 weeks |
Cherokee County commercial permits go through the CityView portal in review cycles of about five business days, with 30 days to respond to comments before a file closes; a complete set typically clears in two to three cycles. Forsyth County runs land disturbance and stormwater through its Department of Engineering and building through Planning and Community Development. Fulton County splits site development and building review between Public Works and Planning and Community Services. Each runs a separate fire marshal track that must close before the building final. County by county detail is on our commercial LDPs by county page.
Owner tip: Ask the tenant for the exam room count and whether any procedure, infusion or dialysis space is planned before the concept plan is drawn. The exam room count sets parking; the procedure space decides whether the Department of Community Health reviews the project. Both change the site plan and the calendar, and both are free to answer on day one.
Medical office projects
Union Hill Medical Building, Canton
7.49 acres in the Union Hill corridor of Cherokee County, formerly an outdoor storage yard, redeveloped for a 20,000-square-foot medical office. Mack provided full civil engineering and land development: site grading to convert storage yard elevations into a buildable pad, engineered stormwater management, domestic water, fire protection, sanitary sewer and storm drainage design, an accessible parking and access layout, construction documents and municipal permitting. Read the case study.
Hickory Flat Medical Building, Hickory Flat
3.95-acre medical office site on Hickory Flat Highway in Cherokee County. The Board of Commissioners unanimously approved the rezoning from R-80 Estate Residential to Office and Institutional in February 2026 for about 12,000 square feet of office, medical and clinic space, as reported by the Cherokee Tribune. Mack is civil engineer of record for site design and permitting. Read the case study.
Frequently asked questions
Typically 3.5 to 7 spaces per 1,000 square feet of gross floor area, about three per exam room. The local zoning code may set a different minimum. The higher of the two governs the design.
A standard physician office does not. Ambulatory surgery centers, infusion centers, dialysis facilities, hospitals and nursing homes are reviewed by the Department of Community Health before construction.
Typically 60 to 120 days from complete submittal through CityView to issued permit, with no rezoning and prompt responses to comments.
Building final, fire marshal final including alarm and sprinkler acceptance testing, accessibility verification, mechanical and plumbing finals, and environmental health if the site uses septic or a private well.
Yes, and every project after the first is shorter. The engineer carries the developer’s parking ratios, lease language and preferred details from one site to the next.
A small commercial site under five acres typically runs $10,000 to $25,000 or more in engineering fees for the land disturbance plan set, with feasibility, survey, geotechnical and permit fees separate. We quote a fee scoped to the parcel.
Planning a medical office in North Georgia?
Send us the parcel and the tenant program. You get back a feasibility exhibit with parking yield at the medical ratio, the accessible layout, the detention footprint and the permit schedule before you commit.
Call (770) 715-7295 or contact Mack Engineering to schedule a feasibility conversation. Our office is at 5745 Stables Wy A-09, Alpharetta, GA 30004, and we serve Metro Atlanta and North Georgia.
This page is general information about civil engineering and permitting for medical office sites in Georgia. It is not a parcel specific permit determination, legal advice, or a cost estimate. Requirements vary by jurisdiction and change frequently; confirm current rules with the reviewing agencies and your engineer of record.