in land transactions is the uniqueness of land, as distinguished from chattels. In Smith v. Nelson, 149 Colo. 200, 368 P.2d 566 (1962), equitable relief was held proper in an action to enjoin violation of a restrictive covenant against subdividing lots, building too close to the street and building subsized housing. In Reed v. Williamson, 164 Neb. 99, 82 N.W.2d 18 (1957), equitable relief was afforded to enjoin defendants from drilling for oil and gas on land which was impressed with a restrictive covenant precluding such activity. Equity was used in Riley v. Stoves, 22 Ariz.App. 223, 526 P.2d 747 (1974), to enforce a restrictive covenant restricting residents of a trailer court to those twenty-one years or older. See R & R Realty Co. v. Weinstein, 4 Ariz.App. 517, 422 P.2d 148 (1967) (<HOLDING>); Sievers v. Zenoff, 94 Nev. 53, 573 P.2d 1190
holding that the specific date restriction set forth in  541a5 controls and that  1306a1 does not eliminate that restriction holding that grantee of restriction may enforce covenant in equity holding  he who seeks equity must do equity  holding that the formula in section 522f2a creates equity for purposes of lien avoidance even if debtors otherwise have no equity in the property holding that the judges restriction of the class was not an abuse of discretion