When an appraiser is adjusting a comp to match the subject property, he or she will use an adjustment based on the difference in square footage.

Hello everyone , can someone share what I could use as the square footage multiplier for a medium and heavy rehab in Fairfield county, CT ? 

The median home sold price reached $582,329, reflecting a 9.7% increase from the previous year, with a median price per square foot of $325.

.: I just hired an architect to design and plans submit for ADU in my 8 multi unit to use the tuck under parking.Some people say do not try to be the general contractor as it will take way more time, costly mistakes and will be nearly impossible to manage with current work. best to hire a company that will do it all and cost about $250 per square foot.

After some research online, I am reading that the cost per square foot on a gut renovation of this nature in Stamford CT is anywhere from $150-$350, which is ultimately not very helpful, because at $150 per sq ft, this is a very appealing project with a total profit of ~$175K (46% ROI) and at $350 per sq ft, it very much isn't, because it would be a net loss of 83K (haha).QUESTIONS:What can I do refine my estimate a bit given that I am not allowed to a formal inspection on the property? 

Quote from @Devin James: Gross Margin is an important calculation for developers/builders.Gross Margin = Gross Profit / RevenueWe shoot for a 20% gross margin on our New Construction HomesReal #’s:Home Sales Price: $374KClosing Cost: $18,700Cost of Construction: $258KLand Cost: $30KGross Profit = $67K$67K/$374K = 17.9% Gross MarginCame slightly short of our goal of 20%Homes Values and Build Costs are constantly fluctuatingI wish we had a crystal ball build larger homes. average new build in our market is 2200 square feet, 4 beds, 3 baths, 2 car garage and sells for 515k. construction costs lower if design is good and find the median or average home sale price and push that up. my guess is you built too small. 347k is cheap. we target 429-479k price range in columbus ohio for single family homes and also only purchase close to urban core where premiums are 20% higher and we build smaller like 1500 sq ft where price per square foot goes up. 

how much is the land and exit prices per square foot?

Purchase price: $171,000 Cash invested: $29,000 Small 600 square foot cabin tucked away just outside of the quaint city of Ellijay GA.

Figuring out the true cost will heavily depend on the type of dig down, depth, and total square footage. 

Many employers are seeing now as a great time to opportunistically buy or lease, usually downsizing, into new office spaces in the district during this period where there are still depressed prices, even on some Class A office spaces.The Resurgence of the Office Market in D.C.The resurgence of employers returning to the city with the pandemic fears now in the rearview mirror is apparent with Q4 of 2024 being the first quarter of positive leasing absorption for office space in the District over the last 10 quarters (Source) Another example is Boston Properties Group (NYSE: BXP), the largest publicly traded developer, owner, and manager of Class A Office space in the United States, is building a 320,000 square foot new trophy office in Downtown DC, with 5 floors already pre-leased to the global law firm McDermott Will & Emery as well as the Rockefeller Group developing a 422,000 square foot office building slated for delivery in 2026 at 600 Fifth St.NW, which is similarly 50% pre-leased (Source).