GOING UP! CITY
HOUSTON DEVELOPMENT DOSSIER

1021 Main — One City Centre Conversion

Downtown · Office-to-residential conversion

Final planning · conversion proposed
All developments / 1021 Main — One City Centre Conversion

Project imagery

One City Centre — existing office building exterior

Existing-building photograph · LoopNet property listing photograph

What we know

3L Real Estate plans to convert One City Centre at 1021 Main into residential use. The filed scope includes 460 conventional apartments on floors 7–29 and 93 hotel apartments on floors 2–6. A 2025 TDLR filing lists planned construction dates, but Downtown Houston's Q3 2026 report describes the project as still in final planning. Other reports cite different unit counts; the filed 553-unit program is the baseline pending verification.

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Research sources

  1. Primary project source
  2. Additional verification
  3. 3L Real Estate developer portfolio
  4. Existing office building photographs
  5. GMi subcontractor — 1021 Main conversion ongoing
  6. TDLR 2026 lobby-bar adaptation filing