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How to Include a Property on the Maryland Inventory of Historic Properties (MIHP)

1. Request a MIHP Number

Inventory numbers are assigned only in coordination with the Inventory Registrar. Local jurisdictions cannot assign numbers. The formal request should be made in writing and should include the names and addresses of all properties with the sites clearly located on a 7.5-minute United States Geological Survey (USGS) topographic quadrangle map (1:24,000-scale).

Please indicate the location of the property on the 1:24,000 map and ALSO include a zoomed-in view of the map with the exact boundary clearly marked.

This may be e-mailed to the Inventory Registrar. If an inventory number has not already been assigned, please contact the Inventory Registrar, Mary Kate Mansius, for assistance by e-mail at or by telephone at (410) 697-9570.

2. Download and Fill Out the MIHP Form

Download the MIHP form as a fillable Microsoft Word document at the link below:

» Microsoft Word Document
» Instructions for Using the MS Word Document Template

Prior to completing a MIHP form, please thoroughly read Chapter IV in the Standards and Guidelines for Architectural and Historical Investigations in Maryland, available at the link below:

» Standards and Guidelines for Architectural and Historical Investigations in Maryland (2019)

If clarification on the form’s requirements or content is needed, please email Heather Barrett, Administrator, Research & Survey, at or call at 410-697-9536. If you are submitting more than a single form, please notify Ms. Barrett about the scope of work prior to commencing the project.

Submit the Form to MHT

Make sure the information is filled out completely. Some common problems and/or items to check before submitting are in the checklist below:

» Final Checklist for MIHP Form Completion

Partial or incomplete forms will not be reviewed. The completed MIHP form and all accompanying documentation should be submitted directly to Ms. Pecoraro. Please note that both an electronic (Word or fillable PDF) and a hard copy are required.

Mail the completed form with capsule summary, all appropriate photos, and maps to:

Heather Barrett
Office of Research, Survey, and Registration
Maryland Historical Trust
100 Community Place, 3rd Floor
Crownsville, MD 21032

Who Can Submit MIHP Forms?

Charles Carroll House, Annapolis

While anyone may submit information about a property for inclusion in the Maryland Inventory of Historic Properties, the information must meet specific guidelines and standards linked below, or it will be returned for editing and further documentation. All grant-funded survey and documentation projects, including comprehensive county-wide surveys, and individual site research projects, as well as regulatory compliance projects must submit information to MHT in a format that is consistent with the standards described below.

Before completing or submitting a Maryland Inventory of Historic Properties form, please contact the MHT’s Administrator of Research and Survey, Heather Barrett at (410) 697-9536 for assistance and information.