Decision-grade work
Clean assumptions, transparent inputs, and scenario testing—so partners, lenders, and internal teams can evaluate the deal with confidence.
Pre-development, development, general contracting, concierge, and consulting across Texas and Mexico. Pick the one that fits and we'll take it from there.
All work performed by licensed & insured contractorsFive services. Each one goes to its own page.
Build new, exterior services for the home you own, or fix & flip — from finding the land through to the finished house.
Residential development & GC
Flex and light industrial, multifamily, and commercial plazas — feasibility, entitlement, and owner-side representation through construction.
Commercial pre-dev & development
Work on the property you already own — residential exteriors, full fix & flip renovations, and commercial tenant improvements. Scoped, competitively bid, and supervised.
Contracting services Scoped & managed by Tantum Contracting Services · licensed, insured third-party crews
For apartment complexes, investors, and property managers — scope of work, bid leveling, due diligence, and vendor dispatch from a preferred bench.
Concierge services
Cost, time, and risk — preliminary budgets, construction schedules, proformas, and feasibility before you commit to a number.
Budgets, schedules & analysisPublicamos una guía completa en español: cómo estructurar la compra, financiamiento para extranjeros, qué pasa al vender, y el tema sucesorio que más patrimonio le ha costado a familias mexicanas con propiedades en Estados Unidos.
Investing from Mexico? We publish a full guide in Spanish covering ownership structure, foreign-national financing, selling, and US estate exposure — with a bilingual team in San Antonio and Mexico City.
Clean assumptions, transparent inputs, and scenario testing—so partners, lenders, and internal teams can evaluate the deal with confidence.
Earlier scope clarity and structured handoffs that lead to tighter pricing conversations, fewer surprises, and faster decisions.
Texas and Mexico under one roof, with in-house Mexican real estate counsel for fideicomiso structuring, deal structuring, and dispute resolution.
Working alongside investors, developers, lenders & suppliers across Texas & Mexico
Tell us about the project. We'll point you to the right team and outline your next best step.
Scope note. Concept-first, decision-focused. Tantum Developers' scope includes underwriting, advisory, coordination, and concept-level visualization—and we can remain engaged to quarterback execution (or provide scheduled check-ins) to help keep scope, timeline, and budget aligned, with underwriting updates as inputs change. All stamped drawings and final construction documents are produced by licensed architects (AOR) and engineers engaged under separate agreements. Construction is scoped, bid, coordinated, and supervised by Tantum Contracting Services; all licensed trade work is performed by licensed and insured third-party contractors under separate agreements. Where we introduce outside professionals, we receive no commission and hold no financial interest in them, and you are free to engage advisors of your own choosing.