Can's answer is pretty generic and should well be. In rural property, I would normally not itemize the septic and well since those costs in this area can vary widely. A 200' well is a far cry from a 500' well, but you go 500' when you don't get enough water at 200'...but the market normally isn't going to add anything for the deeper well regardless. In agri property, fencing, gates, cattle guards seem invisible as are ponds. Often get people wanting you to set a value to a pond. I would challenge anyone here to extract a value for a pond...not gonna happen. Likewise, on rural water or a well, I cannot extract a contributory value.
So driveway, septic, well, landscaping, fencing...all pretty invisible. Often I can get a contractors charge for constructing a home from the builder, or I can get the bid from a poultry farm. There are items they do not include such as dirt work, well drilling, electrical service and water service to the building. Those costs are "site improvements."
When I reverse engineer a sale, extracting the contribution of the building, often you can see the contribution of the total improved site and it is above the raw land costs, That too can be attributed to the site improvements. And there seems to be some relationship between the amount of site improvements and the nature and size of the project. A lot of difference from improving a site for a house and improving a site for 6 - 66' x 600' poultry barns with a separate 80,000 gallon storage barn with variable pressure controlled pumps, 3 generator sheds with 200 kva generators running off diesel, self-exercising engines, and a stacking shed (for chicken litter). I have seen $50,000 in gravel and driveways to poultry barns alone.