Guest, Sign inJoin

Post to Baltimore

We’ll email a one-tap link to publish your post. No password, and nothing is public until you click it.
Already a member? Sign in
Sonneborn Building
Photo: Smallbones, CC0, via Wikimedia Commons · tap to enlarge
National Register of Historic Places

Sonneborn Building

Also known as Paca-Pratt Building

On the National Register since 198244 years
NeoclassicalListed 1982Baltimore

Many listed buildings are private homes. Please enjoy them from the street.

About

About Sonneborn Building

Sonneborn Building, at 110 S. Paca St., was added to the National Register of Historic Places on Oct 29, 1982. The Register lists it for its industry, engineering, architecture and social history, at the local level. It describes its style as Neoclassical, as it does for 7 other Maryland listings. 20 more Register listings are within a quarter mile.

What it isHistoric loft building in Baltimore, Maryland, United States. From Wikidata (CC0). Read about it on Wikipedia ↗

PDFRead the original nominationThe form that put it on the Register, with its history, photos and a map · 58 MB · National Archives↗
Visit

Make it a walk: 5 landmarks in about 5 minutes

110 S. Paca St., Baltimore · about 0.2 miles on foot, as the crow flies

Around it

45 more Register listings within half a mile

★ National Historic Landmark · D district · B building · S site. Each opens its own page.

Show the other 27
More like it

Neoclassical style, nearby

Other National Register listings within 25 miles described as Neoclassical.

Memories of Sonneborn Building

The record says what it is. Neighbors know what it means.

Town Square →
Weigh in
Have you been to Sonneborn Building?

Your answer becomes a post in Town Square.

Start a conversation
Have an old photo of it?Add it · +10

Questions about Sonneborn Building

Is Sonneborn Building on the National Register of Historic Places?

Yes. It was added on Oct 29, 1982 (Register number 82001588).

Is Sonneborn Building a National Historic Landmark?

No. It is on the National Register; Maryland has 71 National Historic Landmarks. The nearest is College of Medicine of Maryland, 0.1 miles away.

Can you visit Sonneborn Building?

Our record doesn’t say whether it is open to visitors. Many listed buildings are private, so it may only be seen from the street.

Where can I read the history of Sonneborn Building?

In its National Register nomination, the form that put it on the Register: a 58 MB PDF at the National Archives, linked on this page.

Sources: National Park Service, National Register of Historic Places (05/22/2026) · National Archives catalog record 106776800 · Wikidata. Map tiles © OpenStreetMap contributors.