I am now working as an engineer in the Twin Cities, but have plans of moving to Austin, TX with my wife to house-hack and work in the more plentiful tech market over there. 

It's not just automotive either.

I started an automotive business on the thinnest of shoe-string budgets; way under capitalized. 

The country is the economic powerhouse of Europe, with a highly diversified economy driven by strong industrial, automotive, and technological sectors.

I hired a surveyor,  engineer and ran through the process with the city myself. 

An additional benefit of a detailed engineering-based Cost Segregation Study is that it can increase potential insurance premium savings as well as provide support for the property tax appeals process.

@Vidit Maini,I'm a structural engineer in the Atlanta area.

More than standard among design professionals- Architects and Engineers. 

You will probably want to engage an engineer to provide an engineered plan for the lots and attorney who frequently presents variance cases.

You can read about the differences here: Cost Segregation Study Approaches ExplainedLet’s first start with what the approaches:Detailed Engineering Approach from Actual Cost RecordsDetailed Engineering Cost Estimate ApproachSurvey or Letter ApproachResidual Estimation ApproachSampling or Modeling Approach"Rule of Thumb" ApproachSo which of these approaches is required by the IRS?