In Texas, a deed restriction can be enforced by:

City government can enforce public zoning ordinances, but deed restrictions are private contracts to which the city is not a party and over which it has no enforcement authority. A city cannot file suit to enforce a private deed restriction unless it is itself a beneficiary of the covenant, which is extremely rare.

TREC (Texas Real Estate Commission) is a licensing and regulatory body for real estate professionals and has absolutely no jurisdiction over private property covenants or deed restriction enforcement. TREC's authority is limited to licensing, education, and disciplinary matters involving licensees.

The State of Texas has no standing to enforce private deed restrictions because it is not a party to those private contractual agreements. State enforcement authority applies to public laws and regulations, not private covenants between property owners.