I'd be looking at multiple structures. we try to build below the average new build cost in our market in Columbus Ohio which is 515,000 last year and we target land 40-50k and urban core adjacent where we get higher price per square foot. we build for clients with margin around $190 a sq ft depending on multi or single. we can get that down in our triplex it's a little higher on our single family homes because of garages and limited economies of scale. hope that helps. idk Philly but if you show me the area and styles of homes I can give you some more insights. 

For most of 2024, we saw 5-6 months of inventory in the Austin area.Here are the December 2024 for Austin and the greater metro:Here’s a chart showing the median sales price of a single-family home in the City of Austin in 2024:The median sales price for a single-family home in December 2024 was up roughly 9% from the beginning of the year.

@Iris OlivasWe have financed single-family homes that were under $100k and we have also bundled some of these sub $100K properties together for commcerical loans.

The previous owners turned in into a single family home.

Each grouping had a common room (perhaps it was shared by multiple groupings ... this was a detail I missed) with a nurses/aid workers office.Central to the two sides of the complex were common facilities such as a dining hall, gym {perhaps a pool ... another detail I missed}, theatre &  games room.With one of the fastest growing groups in our society being single people, we are examining a related idea of a  complex / building providing a modest-sized 1-bdroom "apartment" with more semi-private and common amenities.When I read the title to your thread, I thought it was a project proposing to mix students and seniors into a single complex ... and came in thinking, this ought to be interesting :-) 

I started with single-family homes and then moved on to condos, typically holding onto properties longer than I probably should.

I personally believe single family produces the best rents and appreciation.

I purchased a single family to rent out the rooms and it sent my finical plan completely off course because I was not as ready as I previously thought.

My goal is to wholesale some properties single and multifamily to build some capital while fixing my personal credit and building my business credit.

Long-term single or small multifamily rental would be our strategy to go.