Baltimore County Historic Properties Inventory

Baltimore County's "historic" properties inventory contains more than 3,000 historic and/or potential historic structures in Baltimore County, many of which have been given a Maryland Historic Trust (MHT) inventory number known as a BA number or a Maryland Inventory of Historic Properties (MIHP) number. The County inventory also includes some County Historic District and some National Register District structures.

The most complete inventory information is the Maryland Historic Trust's Historic Sites Survey. To access the information use the login name guest, and the coordinating password, guest!.

Baltimore County's interactive map, My Neighborhood: Historic depicts many of the inventoried properties and districts, providing location and information such as:

1. Inventory Number – the number assigned by the Maryland Historical Trust, shown as
    BA-xxxxx.
2. Property Name – for private residences this is usually, but not always, the name of the
    original or subsequent owner(s).
3. Location – street address and/or state tax map and parcel numbers.
4. Status – Landmark, District and/or National Register listing, source date, etc.
5. Structure details – architectural features, date, etc.
6. Capsule summary – a paragraph highlighting significant aspects of the structure or
    property’s history.
7. Photograph, when available.