NAICS Code - What works for real estate investing?

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Hi experts out there,

I've been asked this a few times at the bank when opening business accounts but have never truly found the code that matches what real estate investing should fall under.  Now I need it for a business loan.   I recently started in the "fix and flip" business and will be "buying and holding."  None of these below fit.  What code do you use for real estate investing?

31190	Lessors of Other Real Estate Property	Equity real estate investment trusts (REITs), primarily leasing real estate (except residential buildings and dwellings, nonresidential buildings, miniwarehouses, and self-storage units)	View SIC
531210	Offices of Real Estate Agents and Brokers	Residential real estate brokers' offices	View SIC
531320	Offices of Real Estate Appraisers	Appraisers' offices, real estate	View SIC
531390	Other Activities Related to Real Estate	Agencies, real estate escrow	View SIC
522292	Real Estate Credit	Loan correspondents (i.e., lending funds with real estate as collateral)	View SIC
525920	Trusts, Estates, and Agency Accounts	Private estates (i.e., administering on behalf of beneficiaries)	View SIC
523910	Miscellaneous Intermediation	Individuals investing in financial contracts on own account	View SIC
531311	Residential Property Managers	Managers' offices, residential real estate	View SIC
524127	Direct Title Insurance Carriers	Real estate title insurance carriers, direct	View SIC
237210	Land Subdivision	Real estate (except cemeteries) subdividers	View SIC
541191	Title Abstract and Settlement Offices	Title search companies, real estate	View SIC
813910	Business Associations	Real estate boards	View SIC
541990	All Other Professional, Scientific, and Technical Services	Business brokers (except real estate brokers)	View SIC
531130	Lessors of Miniwarehouses and Self-Storage Units	Real estate rental or leasing of miniwarehouses and self-storage units	View SIC
531312	Nonresidential Property Managers	Property managing, nonresidential real estate	View SIC
525990	Other Financial Vehicles	Mortgage real estate investment trusts (REITs)	View SIC
523991	Trust, Fiduciary, and Custody Activities	Escrow agencies (except real estate)	View SIC
519190	All Other Information Services	Title search services (except real estate)	View SIC
531120	Lessors of Nonresidential Buildings (except Miniwarehouses)	Real estate rental or leasing of nonresidential building (except miniwarehouse)	View SIC
522294	Secondary Market Financing	Real estate mortgage investment conduits (REMICs) issuing, private	View SIC
531110	Lessors of Residential Buildings and Dwellings	Real estate rental or leasing of residential building	View SIC
522298	All Other Nondepository Credit Intermediation	Agricultural credit institutions, making loans or extending credit (except real estate, sales financing)	View SIC
611519	Other Technical and Trade Schools	Real estate schools	View SIC
541110	Offices of Lawyers	Real estate law offices	View SIC
561492	Court Reporting and Stenotype Services	Closed captioning services, real-time (i.e., simultaneous)