A covenant not to sue legally obliges a party that could initiate a lawsuit not to do so. The covenant is made explicitly between two parties, and any third party that wants to make a claim is legally allowed to do so. Covenants not to sue are used to settle specific legal issues outside of the court system.
If the obligation restricts the use and enjoyment of the land it is called restrictive covenant. Examples of restrictive covenants are not to use the property other than for residential purposes or not to build any structures on the property.
A restrictive covenant runs with the land, affecting successive owners. It will not cease to be enforceable just because it was created a long time ago. However, the covenant may be unenforceable for another reason. For example, where the seller failed to observe the relevant registration formalities.
Under the Limitation Act 1980 claims in land need to be brought to court within 12 years. The main remedy for a breach of a restrictive covenant or the threat of it is the application to the courts for an injunction to prevent any further breaches.
A real covenant is only enforceable if it was created intentionally, it relates to the property in question, and two kinds of privity are established. Additionally, a real covenant must be in writing. The party capable of enforcing the covenant depends on whether the burden or the benefit runs with the land.
How do I challenge a restrictive covenant? Express release: It may be possible to negotiate the release or variation of a restrictive covenant. Indemnity insurance: It is possible to obtain indemnity insurance to protect against the risk of a person with the benefit of a restrictive covenant seeking to enforce it.
My limited understanding is, restrictive covenants are only enforceable by a home owners association created among them. A local government isn't going to swoop in and enforce, or defend, a covenant that you created on your property. The local government is only concerned with land use ordinance's and state laws.