Checkout travelpaso.com for more hotel & rental options! Below are a couple top recommendations :) The venue is in the San Miguel, so the closest city is gonna be Paso Robles. Atascadero and Templeton are also great close options!
House Or Rental
Airbnb & VRBO
There are a ton of great houses in the north county are! I recommend looking in Paso Robles, Templeton, & Atascadero. Find a couple friends, share a house & make a weekend out of it :)