What did it cost you to install a washer and dryer hook up?

[Julie Marquez]

Hi have a very nice mother-in-law unit in a beautiful new build neighborhood. It's a great space with a great bathroom and little kitchenette. There is no washer and dryer and I don't want them using the main house laundry. I want to attract a premium renter. Obviously it depends on the home, but how much did it cost you to add washer and dryer hookups? This includes running the plumbing and drain, installing a 220v outlet and air vent. I know this is very market specific, but I was wondering if others had any experience installing such things and I'd appreciate any feedback on the matter, thanks you.