The minimum required counter space around a kitchen stove is 12 inches on one side and 15 inches on the other, according to Better Homes and Gardens. These measurements increase if the cooking appliance is in an island or if you have a separate oven.
For a separate oven, include a 15-inch span of countertop on either side. If the counter areas for the stove top and separate oven overlap, add 12 inches to the larger of the two measurements, says bhg.com. These measurements are intended to provide maximum countertop space and usability while ensuring that stoves are far enough away from flammable doors and cabinets. Another useful guide for planning kitchen landing areas and appliance clearance space can be found on starcraftcustombuilders.com.