Assuming your market is good for both? And you run your numbers.
Do you own the mobile homes or just rent the lots?
If you are just renting the lots, I would go with the MHP lots.
Storage building costs are really high right now. If your market for a 10x20 is $90 per month or less I wouldn’t do them.
If your storage rental rate is say $130 or higher I would do Selfstorage.
That is great insight Henry. Based on your answer I should pursue the expansion of the park before storage. This location I believe would be better as additional housing.