The [purchaser] has the equitable right to compel the vendor to do something with his property, namely, convey it to the [purchaser], whereas the covenantee has the right to call upon the covenantor to refrain from using his property in a particular manner. The covenant, as a matter of interpretation, may mean only that the covenantor is personally bound to this course of conduct, or it may mean that the undertaking is that the use of the land, whether by the covenantor or others, shall be permanently restricted in the manner indicated by the covenant. If the latter construction is the correct one, can equity, consistently with its settled doctrines, refuse to impose upon the subsequent taker of the land the duty of refraining from any act interfering with the enjoyment of the covenantee's equitable right acquired by his covenant? And this is precisely what equity does do in enforcing the restrictive covenant.
However, this explanation cannot supply a foundation for all the cases. In particular, where the successor to the covenantor acquires an equitable rather than a legal interest in the burdened land, then, even if the successor did so without notice of the restrictive covenant, the successor nevertheless is bound by the earlier equitable obligation [47] .
1. "The Equitable Rights and Liabilities of Strangers to a Contract", Columbia Law Review, vol 18 (1918) 291, at pp 301-302.
2. "The Equitable Rights and Liabilities of Strangers to a Contract", Columbia Law Review, vol 18 (1918) 291, at pp 301-302 (footnote omitted).
3. Rodgers v Hosegood [1900] 2 Ch 388 at 404-405; In re Nisbet and Potts' Contract [1906] 1 Ch 386 at 406.