Real property
Real property means land and any improvements thereto, including but not limited to, fee interests, easements, air or access rights, and the rights to control use, leasehold, and leased fee interests.
Source
23 CFR § 710.105
Scoping language
Terms defined in 49 CFR part 24, and 23 CFR part 1 have the same meaning where used in this part, except as modified in this section.