Current estimated value of $700,000.

Those numbers are a good estimation in my book.

I also don't rely on sq ft to estimate a house per say.

thank you so much for your help. working hard on my estimating on rental property.

I was told by a GC out of NC that to estimate cost of repairs in a property you would consider a light rehab you could get the sqft of a property and multiply by $25, medium $35, heavy $55 and full rehab $75+.

If I rented it out today, I estimate I'd cashflow even or slightly positive to start, but of course I'm worried that I won't get as much per month in say, a year and a half.

So there's two elements I would suggest to focus on here:CostsResponsivenessCosts you can compare by analyzing the "lender fees" on a "loan summary" or "loan estimate". 

The cost is going to be less than 30k because I will build it myself but obviously the county won't just accept my "random" estimate, they will allow to estimate $123/SF of conditioned space and $22/SF of deck.The floor plan I was planning on building is coming at $37,404 (288 SF floor plan, 90 SF front deck), so my question is : shall I make it smaller to get below that 30k limit ?

Just a few thoughts: - Get a thorough inspection- Get 3-5 estimates from GCs- Pick the right ‘genre’ of GC (fourplex and smaller usually falls under midsize or smaller GCs) - Always check license numbers and if you’re repairs or more than $25k, request references/info for 3 past similar projects with pictures or check social media and reviews - Get a service agreement in place before finalizing your deal and make sure the estimates cover everything in your inspection report and nothing is overlooked so there’s not as much unexpected cost that pops up.

Check out the book, the Flipping Blueprint it can give you some guidance on flipping estimates, it depends on the level of rehab there are some rough numbers once can use as a price per sqft.