Multifam/Apts  is no longer an option if you are a conscious/awake person, and if you have children or are pregnant, get out today, you are causing permanent damage to you children,  being exposed to sometimes dozens  of wifi signals from un-thoughtful neighbors who do not know how to turn them off.   

I certainly would not purchase this property if I did not expect continuing rent appreciation as it is detached duplex (two tenants are typically twice the work of one) and the current cash flow is too low for me to justify the effort.So far the extent of our value adds has been rehabs with potentially adding bathrooms.I have significant confidence of continued rent increases over the next few years at least: 1) rents lag property appreciation. 2) vacancy rate is real low. 3) cost to add more than ADU is high - it coasts around $100K to break ground for residential in San Diego (permits, surveys, etc.). 4) Minimum wage increases already approved.  5) one of the best weather climates in the US.  6) rising population: one recent study had San Diego as 13 highest population increase of large US cities.  7) geographically constrained: Constrained by Mexico to the South, Pacific to the West, Camp Pendleton to the North, and the East quickly gets harsh.  8) good and varied employment: Hard to manage a employment category melt down that could impact the range of employment in San Diego.  9) environmentally diverse from mountains to desert to beach to happening urban center.This weekend I plan to send 2 rent increase notices. 

However, unless you want to make other people's problems your own, take your conscious out of the decision making process. 

This gives you time to research the land's zoning, potential environmental issues, access to utilities, etc., without being committed to the purchase.

I'm from Arizona, and my thought would be that this might be appealing buyers (possibly in the Phoenix area) but more specifically in Tucson, where there the demographics (professionals/environmentally conscious) would be very receptive to that kind of feature in a more high end house, or at least a house in one of the desirable neighborhoods in Tucson. 

In turn, this cut-and-dried qualification formula eliminates the need to do an expensive environmental review on the land during the certification process.The certification process that officially creates these salable credits is equally straightforward: It takes about 30 days and costs $1,400, regardless of the size of the land or the number of credits that it will yield. 

You are asking a Qualified Intermediary to acquire and hold legal title to replacement property, so they are going to need assurances that there are no environmental contamination issues to worry about.  2. 

If you do not have immediate plans for the land then it could all be upside but be careful for environmental concerns (I.e. motor oil leaking on no paved surfaces, etc)I am not sure what “insurance” you have on the vacant land but you should always make sure and talk to your insurance broker to find out the specifics of your policy before committing to anything.Do you know if the owner of this company has truck stored some other place?

Obviously I live in the Bay Area so it's a very environmentally conscious community, but can you provide any insight?

Limiting (some) factors of your land that you must understand:-Zoning-Deed Restrictions-Utilities availability-Site issues-Environmental study