However, at a higher level based on my PA knowledge which I assume is similar to TX:PA's municipal planning code grants building code and other enforcement authority which would cover all of the items you mention in PA. 

I also have a specific borough in NYC that I consider my farm, but I'm not sure if that's specific enough so I've been mainly looking at a specific zip code.

But one of these days i will crack the code and start making some money with this.

I suspect two things1. overall lot size is too small and not conforming2. width to length ratios won't meet set back codes as you mentioned.value is to the owners on either side...I sold my Jenner lots last month.. after trying to perc them for 11 years LOL..

Code enforcement(disgusting living conditions), the city?

I will get on my laptop in about an hour.

(Code violation back here.)

Said the roof was 3-layers (not allowed by code in our area) when it was only two.

I was in negotiations to buy a 8 unit (in an opportunity zone - thats code for "crappier neighborhood, a.k.a "war zone") that would have cost me a fortune in city inspections.... all to have the privilege of partnering with the housing assistance office (more inspections and red tape) to house folks that have zero interest in actually taking any responsibility for MY investment - their home.NO THANKS... there really are better areas for me to place my bets.Im not down on the Lehigh Valley as a whole... but inside the 3 cities that have these repressive policies.... keep you decay and polocies.

I don't find airbnbs auto-pricing to be accurate at all and it frequently quotes rates for me more than half of what I know I'm able to fetch for my place.I would say this is probably because I would imagine it would be hard to code a system that takes into account quality of amenities, true location, size, and unique features.What both systems likely do is just dig through all the listings of homes that are around the same bedroom and bathroom size and then give you a price based on the average of those homes, but that leaves so many important factors out of the equation such as the quality of the house, the true location of the house to tourist attractions in the area, quality of amenities, unique amenities and the houses reputation through reviews.I think the tried and true way to accurately price your home is to simply dig through the listings and find houses that truly reflect and in accuray to your own house, see how much they're booking for through the listings calendar and then price your home similarly to theirs.