Main and Military Plazas Historic District
No coordinates published for this listing.
Why it's listed
Downtown San Antonio's Main Plaza and Military Plaza have been the city's central gathering places since the 1720s. Military Plaza began in 1722 as a parade ground and market for Spanish soldiers, and it still holds the Spanish Governor's Palace. Main Plaza was settled in 1731 by Canary Island families who built homes around a village church and the Casas Reales. Over time the area shifted toward commerce and government. The district takes in thirteen whole blocks plus parts of two others, with 36 contributing buildings. They include the Italian Renaissance Revival City Hall, the Romanesque Revival Bexar County Courthouse, San Fernando Cathedral, the twelve-story Main Plaza Building of 1922, and many two- and three-story masonry commercial blocks. The Melchoir de la Garza house, from about 1800, is the last of the small homes that once ringed the plazas. The nomination values the district for its variety of styles and eras, with city business, banking, worship and government still drawing people to the plazas.
Significance in brief: The plazas have been the hub of San Antonio since the 18th century, from the Spanish presidio and the Canary Island settlers' town to a center of city and county government and banking. The varied buildings show the city's growth from presidio to frontier town to commercial center. The nomination values the district for this diversity of styles and periods rather than uniform design.
Machine-generated summary. This summary was generated by a language model from the official nomination document and has not been reviewed line by line by an editor. It may contain errors. Check the source document before relying on any detail. Source: nomination document (PDF). NRHP reference 100004489, listed October 7, 2019. Summary generated October 2026 (model claude-sonnet-5-5, prompt v1.0-2026-10-29, confidence medium).
Key facts
| Address | Roughly bounded by San Antonio River, E. Nueva, Laredo, and Houston Sts., San Antonio |
|---|---|
| County | Bexar County |
| Listed | October 7, 2019 |
| Reference number | 100004489 |
| Resource type | District |
| Architect / builder | Otto Kramer (City Hall); James Riely Gordon (Bexar County Courthouse); Alfred Giles (Wolfson Building, Old Bexar County Jail); Francis Giraud (San Fernando Cathedral); J.P. Haynes (contractor, Main Plaza Building) |
| Architectural style | Mixed styles, including Spanish Colonial, Italian Renaissance Revival, Romanesque Revival, Gothic Revival, Victorian, Commercial style, Chicago Style influence and Spanish/Mission Revival |
| Areas of significance | Commerce, Historic - Non-Aboriginal, Military, Exploration/Settlement, Politics/Government, Architecture, Religion |
| Level of significance | State |
| Status (as stated in the nomination) | The form marks the district as occupied, with both public and private ownership. Present uses include museum, park, commercial and government. Numerous parking lots lie within the boundaries, and some buildings have altered ground floors. |
| Acreage | 4.5 |
What listing means for this property
This is a historic district. Buildings within its boundary are either contributing (they add to the district's significance) or non-contributing. Owners of contributing income-producing buildings can claim the 20% federal rehabilitation tax credit; homeowners should look at state credits. National Register districts impose no design review by themselves; a local historic district ordinance, if one exists, does (the difference explained).
General information, not legal or tax advice. Rules change; confirm with your State Historic Preservation Office or a qualified adviser.
Sources and further reading
- National Park Service, National Register of Historic Places database (snapshot May 2026), reference 100004489.
- Nomination form (PDF, National Archives)
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.