This layer was created by integrating three datasets to estimate buildings in Maryland 35,000 square feet and above: "2024 Second Quarter Computer Assisted Mass Appraisal Building" from the Maryland Department of Planning, "2024 Maryland Parcel Polygons" from the Maryland Department of Planning, and "USA Structures" from the Federal Emergency Management Agency. For more information on Maryland's Building Energy Performance Standards (BEPS), see mde.maryland.gov/BEPS. This dataset is subject to future updates. Last Updated: 04/07/2025

This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Rooflines of buildings from 2008 Axis Study aerial survey and updated with architectural files and aerial imagery. Original data is from CAD converted to shapefiles. Building outlines are added upon construction completion with field verification.Buildings are referenced by Building Number (see BUILDINGID field) and Building Name (see LONGNAME field). Last Updated: 04/13/2015 Feature Service Layer Link: http://geodata.md.gov/imap/rest/services/Structure/MD_CampusFacilities/FeatureServer/2 ADDITIONAL LICENSE TERMS: The Spatial Data and the information therein (collectively "the Data") is provided "as is" without warranty of any kind either expressed implied or statutory. The user assumes the entire risk as to quality and performance of the Data. No guarantee of accuracy is granted nor is any responsibility for reliance thereon assumed. In no event shall the State of Maryland be liable for direct indirect incidental consequential or special damages of any kind. The State of Maryland does not accept liability for any damages or misrepresentation caused by inaccuracies in the Data or as a result to changes to the Data nor is there responsibility assumed to maintain the Data in any manner or form. The Data can be freely distributed as long as the metadata entry is not modified or deleted. Any data derived from the Data must acknowledge the State of Maryland in the metadata.

This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. This is a comprehensive point theme that incorporates building subarea characteristics associated with a given building - one or more records per parcel account number Last Updated: Feature Service Layer Link: http://geodata.md.gov/imap/rest/services/PlanningCadastre/MD_ComputerAssistedMassAppraisal/MapServer/3 ADDITIONAL LICENSE TERMS: The Spatial Data and the information therein (collectively "the Data") is provided "as is" without warranty of any kind either expressed implied or statutory. The user assumes the entire risk as to quality and performance of the Data. No guarantee of accuracy is granted nor is any responsibility for reliance thereon assumed. In no event shall the State of Maryland be liable for direct indirect incidental consequential or special damages of any kind. The State of Maryland does not accept liability for any damages or misrepresentation caused by inaccuracies in the Data or as a result to changes to the Data nor is there responsibility assumed to maintain the Data in any manner or form. The Data can be freely distributed as long as the metadata entry is not modified or deleted. Any data derived from the Data must acknowledge the State of Maryland in the metadata.

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Structure Lines. Contract NCPC 93-02. This document describes the planimetric map production for the 350 tiles located in Washington DC and the surrounding states of MD and VA.

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