I have attended a few workshops and events put on by a company called Maxable Space, they are a local company helping people with everything ADU related and are very knowledgeable on the topic.https://maxablespace.comAlso note that if you’re looking in the City of San Diego, the code refers to these units as “companion units” or “jr. companion units”.

I can't tell you that it lasts longer (it might), but in many cases it will save you time on labor, because it installs faster.One of my first properties ten years ago my contractor installed cheap shut off valves; I remember he pointed out the savings, becaue we had a total of 6 and the steel valves were like $10 extra each over the plastic.

The sill is made so they can't set items on it and the window trim is plastic.

I think these websites also sell the corregated plastic signs with the stands for much much less.

My 5 y.o. plays in a 50 gallon "Little Tykes" plastic pool that's about 6" deep when filled.

There were batteries installed in them, but they were just against plastic, there is no connection to the battery.

It is one of the large plastic ones that slide down over a 4 x 4 cemented in the ground.

For this reason, in baths and kitchens, I'll usually use the composite plastic base moulding since it's waterproof.

Here a certified therapy dog would be classified as a working dog (similar to seeing eye dog, companion dog or, even police dog) and you cannot discriminate against working dogs (they are not pets).When it comes to pets you can set your own rules, but, as others have indicated, it is critical you apply them fairly and consistently.

We also discovered he had plastic dryer vent tubing as heat vent runs through some of the walls to the upper unit.