In lieu of the relocation fee required by section 4-5-605 of this chapter, the landlord, at his option, may relocate the tenant into a comparable replacement apartment unit satisfactory to the tenant, in which event the landlord shall be liable only for the actual costs of relocating the tenant, up to the maximum as set forth in section 4-5-605 of this chapter per apartment unit. A tenant shall not unreasonably withhold the approval of a replacement apartment unit offered by the landlord. For the purposes of this section only, comparability shall be determined from the following factors: size, price, location, proximity to medical and recreational facilities, parks, community centers, shops, transportation, schools, churches, and synagogues, amenities, and, if the tenant desires, the location of the apartment unit in the city. (1962 Code § 11-6.06)