Tantum is a boutique real estate investment and development consulting platform headquartered in San Antonio, Texas.

We both invest in real estate and consult across the full project lifecycle, supporting clients from acquisition strategy and pre-development through final construction. Our value is combining disciplined underwriting and feasibility work with practical development execution and a strong partner ecosystem, helping clients make confident decisions and deliver successful projects.

What we do (selected services):

Real estate investing, acquisitions, and pre-development consulting, including site/property evaluation and due diligence coordination

Financial analysis and underwriting, including feasibility, budgeting, and risk review

Pro formas and financial modeling to support investment decisions and lender/investor conversations

Development consulting and owner representation from pre-dev or acquisition through final construction

Preconstruction planning, scope alignment, schedules, and procurement support

Design coordination and visualization, including renderings when needed

Real estate marketing support for projects and assets, including positioning and go-to-market execution

Materials sourcing support through our vendor relationships

Cross-border coordination support through Tantum S.A. de C.V. when applicable

Representation:
Buy/sell representation is provided through Tantum Realty Group (Coldwell Banker D’Ann Harper, REALTORS®).

Ecosystem advantage:
Clients can access preferred pricing through our ecosystem of partners such as architects, engineers, software providers, and material suppliers, plus additional specialists aligned to the project’s needs.

Our mission is to deliver high-performing real estate outcomes through rigorous analysis, experienced development guidance, and accountable execution built on integrity and long-term value.

Tantum Companies

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