You have no way out of this if you're required to meet the minimum standards.
The Americans With Disabilities Act (ADA) and the ICC/ANSI 117.1 accessibility code generally require that all new buildings for non-residential use be made accessible to people with disabilities. ADA is federal law. So, you have no choice but to provide an accessible route. That doesn't mean that the front door has to be accessible in all cases, a secondary route might be considered. The type of business you operate will dictate a lot of this. If you have the public coming in (like a store, clinic, or leasing office), the entire building must be accessible...That includes everything from door hardware to corridor width to required bathroom space and dimensions to signage in braile to water fountains to light fixtures. If you do not have public access and only have employees, you still have to meet ADA and/or ICC/ANSI 117.1, but all you have to do is get the employees in the work area in a compliant manner, and are required to make accomodations for a disabled employee.
Remember that the ramp is only part of the equation. Disability codes are not just for people in wheelchairs. They're for the blind, people with a broken foot, people with balance issues, and any other disability you can think of. Cutting corners opens you and the enforcement jurisdiction up to a slam-dunk easy lawsuit. Check out Link vs. the City of Hay's KS.
If you haven't done so, you need to sit down with the City's plans examiner and building official to determine what accessibility code they're enforcing and what you need to know.
is an excellent resource center.