National Historic Landmark · courthouse · St. Louis (Independent City), Missouri

U.S. Customhouse and Post Office

United States historic place in St. Louis (Independent City), Missouri. Added to the National Register in 1968, and a National Historic Landmark.

Open to visit National Historic Landmark Listed 1968 Second Empire architecture in the United States and Canada Alfred B. Mullett

Photos via Wikimedia Commons · 5 in the Commons category

What it is

The U.S. Custom House and Post Office is a court house at 815 Olive Street in downtown St. Louis, Missouri, United States.

Text from Wikipedia, CC BY-SA 4.0.

The record

Property type	Building
Address	8th and Olive Sts., St. Louis (Independent City), MO
Independent city	City of St. Louis
Listed	Nov 22, 1968
Listed for	Art, Politics and government, Architecture
Level of significance	National
Also known as	Old Post Office
Reference number	68000053
Architect	Alfred B. Mullett
Type of place	courthouse
Style	Second Empire architecture in the United States and Canada
Designations	National Historic Landmark
Contributing resources	1 building

The nomination form, the document that argues why this place matters, is in the National Archives: Read the nomination ↗

Visiting

Address	8th and Olive Sts., St. Louis (Independent City), MO
Coordinates	38.6289° N, 90.1929° W · Directions ↗
Also in St. Louis (Independent City)	384 listed places in St. Louis (Independent City) → · walking tours →
Nearest national park unit	Gateway Arch National Park · under a mile · on Park Atlas

This one you can go inside. Hours and admission change with the season; the website above has the current schedule.

At a glance

State: Missouri
Independent city: City of St. Louis
Listed: 1968
Type: Building
Landmark: Yes
Architect: Alfred B. Mullett

Cell signal

Verizon: 5G (fast)
AT&T: 5G (fast)
T-Mobile: 5G (fast)

Outdoor coverage as modeled by carriers in FCC filings as of 2025-12-31. This product uses FCC APIs and/or Data but is not endorsed or certified by the FCC.

Official links

Sister site

Park Atlas

Every unit of the National Park System, with its fees, hours, alerts and campgrounds.

Open Park Atlas →

This record is built from National Park Service sources, re-read every Saturday, and Wikidata, re-read on the first Saturday of each month. Register Atlas is independent and is not affiliated with any agency, and a listing does not mean a place is open to visitors. How the data is built →

Explore

Map

Nearby in City of St. Louis

All listings in City of St. Louis →

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BuildingListed 1982

Local history books for City of St. Louis

We earn a small commission if you buy through these links. It does not change what we list.

Lost St. Louis
Valerie Battle Kienzle, 2017
Find at Bookshop.org
Gay and Lesbian St. Louis
Steven Louis Brawley and St. Louis Lgbt History Project, 2016
Find at Bookshop.org
African American St. Louis
John A Wright and John A. Wright Jr, 2016
Find at Bookshop.org
St. Louis in the Civil War
Dawn Dupler, 2014
Find at Bookshop.org
St. Louis's the Hill
Rio Vitale, 2014
Find at Bookshop.org

Guidebooks to historic places and travel in Missouri

The big divide
Diane Eickhoff, 2013
Find at Bookshop.org
Expedition of Thirst
Pete Dulin, 2017
Find at Bookshop.org
Off the beaten path Missouri
Patti DeLano, 2013
Find at Bookshop.org

Titles come from Open Library's catalog, matched by subject heading or by title.

Reference

Questions people ask

When was U.S. Customhouse and Post Office listed on the National Register?

Nov 22, 1968. It is also a National Historic Landmark, the higher of the two designations.

Source: National Park Service

Who designed U.S. Customhouse and Post Office?

Alfred B. Mullett, working in the Second Empire architecture in the United States and Canada style.

Source: Wikidata

Can I visit U.S. Customhouse and Post Office?

Yes. U.S. Customhouse and Post Office is recorded as open to the public.

Source: Wikidata

Where is U.S. Customhouse and Post Office?

8th and Olive Sts., St. Louis (Independent City), City of St. Louis, Missouri. The nearest national park unit is Gateway Arch National Park, under a mile away.

Source: Gateway Arch National Park

Where is the nomination form for U.S. Customhouse and Post Office?

The National Archives holds the nomination form, the document that made the case for listing.

Source: National Archives

Is there cell service at U.S. Customhouse and Post Office?

FCC coverage maps show Verizon 5G, AT&T 5G, and T-Mobile 5G at the listed point. Coverage indoors and behind old masonry is another matter.

Source: FCC Broadband Map

Sources

Location, type and contributing counts come from the National Park Service's National Register spatial data. Listing dates come from the National Register office's spreadsheet where it carries the listing. Construction date, architect, style, photograph and encyclopedia link come from Wikidata and Wikimedia Commons, matched on reference number 68000053. Nothing here is transcribed by hand. The nomination form and photographs ↗ at NPGallery are the original nomination as filed with the National Park Service, and the form is often the best description of the place. The description under "What it is" is the opening of the Wikipedia article, CC BY-SA.