And to answer your question, essentially, from my understanding, a cooperative condo is basically under full ownership of a company/ corporation that owns a building of condominiums.

Likewise, transforming the main house into {4} apartments or condominiums would necessitate a similar or greater sacrifice to meed modern fire codes; to add kitchens to the individual units, and to insulate and install separate HVAC for each unit.  

Security was a trust deed on a condominium (or so it appeared) in a city close to where I live. 12% interest only monthly payments, balloon in a few months (the maturity date had expired a few years ago).Looked at the signer of the note (borrower) , it was a corporation signed by an officer of the corporation.I'm leaving for a family camping/fishing trip up in the mountains, so I don't have much time to dig deeper until I get back.  

The disclosure statute, effective for instruments executed on or after August 1, 2013 and modeled in part on the condominium/townhome disclosure statute, requires a “multiple seller” of residential real estate selling on a contract for deed to provide certain statutorily mandated disclosures.

Highlights are: Single-family home sales rose 6.7 percent versus July 2014;Total property sales were up 6.0 percent year-over-year to a record 9,653 units;Total dollar volume increased 11.9 percent to $2.7 billion;At $293,790, the single-family home average price reached a record high for a July;At $220,000, the single-family home median price also achieved a record July high;Single-family homes months of inventory climbed to a 3.4-months supply, matching a level not seen since July 2013;Townhome/condominium sales rose 7.3 percent;Single family home leases were up 11.8 percent while townhome/condominium leases rose 8.0 percent with average rents up year-over-year.Read full report here: http://www.har.com/content/mls

It has not and does not slow down construction of condominiums.  

Looking forward it also lends them to becoming condominiums. 

The good news is that I have a great deal of experience designing and building condominiums and that gives me a lot of reassurance that the project that I have designed is feasible and marketable. 

That endeavor trained me - as owner - in many facets of cost estimation for remodeling of homes c.1880-1915 based on our work in both homes and multi-family condominium units and common areas in the historic Dupont Circle area, plus homes in Potomac MD. 

My mother passed away over 10 years ago and had a condominium in Maple Shade.