Dear Mr. Leitch,
Thank you for posting your request on History Hub!
We searched the National Archives Catalog and located 4 series in the "Record Group 31: Records of the Federal Housing Administration, 1930-1974" pertaining to Architectural and Engineering Drawlings. We also searched the National Archives Catalog and located a series in the "Record Group 79: Records of the National Park Service, 1785-2006" pertaining to the National Register of History Places and National Historic Landmarks Program Records. Please review these series. For more information about these records, please contact the National Archives at Atlanta (RE-AT) at email@example.com, the National Archives at College Park - Cartographic (RDSC) at firstname.lastname@example.org, or the National Archives at College Park - Textual Reference (RDT2) at email@example.com.
Due to the COVID-19 pandemic and pursuant to guidance received from the Office of Management and Budget (OMB), NARA has adjusted its normal operations to balance the need of completing its mission-critical work while also adhering to the recommended social distancing for the safety of NARA staff. As a result of this re-prioritization of activities, you may experience a delay in receiving an initial acknowledgement as well as a substantive response to your reference request from the National Archives at Atlanta (RE-AT) and the National Archives at College Park (RDSC) and (RDT2). We apologize for this inconvenience and appreciate your understanding and patience.
We hope this is helpful. Best of luck with your research!