That's a great business plan and differs from WeWork's because WeWork's business plan assumes that the cost of leasing office space in high rent areas is never going to be removable.
When looking at a potential business as something that can be economically scaled you always need to find the saving factor, for WeWork the saving factors are Administration efficiency (to administer 10 properties individually you need 10 administrator labour units, maybe for grouped properties you can get away with 6), rent leverage (being well established might lower the apparent risk of your lease being canceled early, so you may have some savings there) and maintenance (this is a significant one, I bet you could really scale down the expense of janitors and the like if you have multiple properties in a dense area). But none of the costs I listed above are seriously impacting your cost per sale, they're all quite marginal savings, so you'd really need high volume to reap that benefit and it's likely that the cost of marketing, building an app, having a crazy CEO etc... will outweigh the savings you could eek out.
