SDI has partnered with the architectural community for decades, acting as a third-party architectural CAD drawing service provider to complement their current service offering to end clients. SDI’s team of commercial real estate professionals deliver a complete range of CAD services including:

  • Square Footage Accounting
  • Field-verified as-built drawings
  • Core and Shell files with tenant/department demised partitions
  • Building modeling using Revit software
  • CAD conversion services

The SDI Team’s quality CAD service capabilities lower architectural firms’ costs, and allow for a focus on their core business. Our Chicago-based team prides itself on delivering accurate drawings that consistently meet BOMA and REBNY standards. The SDI’s Team of seasoned CRE industry experts is a phone call away from our clients,  providing turn-around to service requests and documentation.


SDI Presence is the real estate industry’s square footage expert.

As 25-year experts in BOMA standards, SDI Teams field-verify properties throughout the U.S. and typically find an additional 5% of rentable square footage for:

“SDI’s experienced team and data fuels our daily operations.”

Having instant access to accurate rentable square footage is key to ensuring that we maximize the revenue generation of our properties.

Property ManagerLeading US Commercial Real Estate Services Firm
“SDI’s square footage recalculation exercise resulted in a significant pick up in our potential rentable square footage – and maximized our properties’ valuation at transaction time.”
Property OwnerGlobal Commercial Real Estate Services Firm



Real Estate Clients Served Across the U.S.


Portfolio of Real Estate Buildings


SF of Property Under Maintenance


Of Top Property Managers are SDI Clients


SF Calculated & Verified Across the U.S.

Contact SDI

Contact us to minimize the cost and distraction of your in-house CAD drafting services, while providing your client with field-verified building documentation.

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