Yes; architectural drawings are protected as visual art. Typically the disposition of rights would have been addressed in the contract or commissioning agreement.
A residential architect can be responsible for drawing up plans for a home. A drafter draws plans for a home.
Architect.
The Buyer owns the plans but the Architect owns the design. That simply means no reproducing (copying) without consent from the Architect.
An Architect
Architect
architect
an Architect
An architect or building designer.
an architect designs a building
An architect or building designer.
An Architect
Architect