It seems to appear that Google is testing local service ads specifically for real estate. Local service ads for real estate take the user into the local service ads interface. Moreover, local service ads show the carousel.
Local Service Ads
Local real estate agents help in either sell a home or purchase another one. Local service ads assist with interfacing with individuals who search on Google for the services you offer. Your promotions will appear for clients in your local area, so you can keep your schedule full.