It should extend much higher.If you were buying a suburban rental on a quarter acre in the midwest, land cost would be about 15% of total cost. 

Hi @Courtney Hamilton, owner of Maven Cost Segregation here, for STRs with heavy renovations and amenities like these, cost segregation usually moves the needle, but only if the depreciation is sized correctly and audit-defensible.

I do #1 using DIY cost seg. 

I’ve been analyzing the overhead costs for high-volume wholesaling, and it seems the 'standard' path of paying $5–$10 per motivated seller lead is a major bottleneck for scaling.As a developer, I wanted to see if I could engineer a 'lean' strategy to bypass expensive third-party platforms.

The front end remained anchored as traders continued to push back expectations for near‑term rate cuts, while mortgage‑linked assets saw pockets of relief as rate volatility cooled.

Otherwise component costs must still be estimated.

They will take some short-cuts to keep the cost down. 

Additionally, the IRS has recently increased the scrutiny regarding cost segregation studies.

https://www.biggerpockets.com/forums/51/topics/1113749-cost-segregation-faq

My accountant wants me to start doing this in the event of an audit being I’m starting larger projects and will be implementing cost segregation Thanks