This dataset represents real property information within a parcel of land in the City of Baltimore. The data dictionary for this dataset can be accessed by visiting the following link.: Data Dictionary For Real Property Information | Open Baltimore (baltimorecity.gov). Data is updated on a weekly basis. To leave feedback or ask a question about this dataset, please fill out the following form: Real Property Information feedback form.

Outlines the boundaries of the Baltimore County Historic Districts. The agreement by the owners of 75 percent of the property within a proposed district’s boundary is required to form a local historic district. Any exterior modification or addition to a structure in a district, or any excavation building, or demolition permit, is subject to approval by the Landmarks Preservation Commission.

Subdivision boundaries for Baltimore County.

Easements in Baltimore County, Maryland are created as the right to use another persons land for a stated purpose. It may involve a general or specific portion of a property. These property boundaries include Ingress and Egress Easement,Stormwater Management Easement, Stormwater Management Reservation and Utility easement.

Land Preservation Easements for Baltimore County.

This layer is a high-resolution tree canopy change-detection layer for Baltimore City, MD. It contains three tree-canopy classes for the period 2007-2015: (1) No Change; (2) Gain; and (3) Loss. It was created by extracting tree canopy from existing high-resolution land-cover maps for 2007 and 2015 and then comparing the mapped trees directly. Tree canopy that existed during both time periods was assigned to the No Change category while trees removed by development, storms, or disease were assigned to the Loss class. Trees planted during the interval were assigned to the Gain category, as were the edges of existing trees that expanded noticeably. Direct comparison was possible because both the 2007 and 2015 maps were created using object-based image analysis (OBIA) and included similar source datasets (LiDAR-derived surface models, multispectral imagery, and thematic GIS inputs). OBIA systems work by grouping pixels into meaningful objects based on their spectral and spatial properties, while taking into account boundaries imposed by existing vector datasets. Within the OBIA environment a rule-based expert system was designed to effectively mimic the process of manual image analysis by incorporating the elements of image interpretation (color/tone, texture, pattern, location, size, and shape) into the classification process. A series of morphological procedures were employed to insure that the end product is both accurate and cartographically pleasing. No accuracy assessment was conducted, but the dataset will be subjected to manual review and correction. 2006 LiDAR and 2014 LiDAR data was also used to assist in tree canopy change.

Baltimore County's Urban Rural Demarcation Line (URDL) has divided the county into "urban" and "rural" areas since established by the Planning Board in 1967. Developed primarily as a growth management tool, it has influenced zoning, land-use, and infrustructure decisions, and was the baseline for the Baltimore County part of Maryland's Priority Funding Area. However, this boundary (digitized at a scale of 1:24,000 where 1" represents 2,000') was became obsolete as the county's GIS data increased in resolution (to 1:2,400 where 1" represents 200'). Until recently, determining a property's status as either urban or rural was of a highly interpretative nature. A new URDL was developed to more accurately match the 1:2,400 data (parcel, street centerline, zoning, etc). This version was reviewed and modified in a series of meetings with several interested county agencies. The new URDL removes much of the old one's ambiguity while keeping its original intent. The new URDL was reviewed, modified, and subsequently approved by the Planning Board on June 19, 2003. Minor revisions were effected 9/2/04, 10/21/04, 9/4/07, 5/21/09, 10/1/09 and 11/15/12. The URDL_poly feature class is one part of the URDL feature dataset.

In 1984, the General Assembly enacted the Chesapeake Bay Critical Area Act to regulate development, manage land use and conserve natural resources on land in those areas designated as Critical Area. For this document, the Critical Area is all land and water areas within 1000 feet of the tidal waters' edge or from the landward edge of adjacent tidal wetlands and the lands under them. Georeferenced digital data files of the critical Area have been produced for Baltimore City and the 16 Maryland counties with land located within the Critical Area. The digital maps produced for each jurisdiction are polygons depicting the Critical Area and the land use classifications recognized by the Chesapeake Bay Critical Area Commission (CBCAC). Each jurisdiction is a separate file. The data were produced from hard copy parcel maps originally submitted by the counties as part of the requirements for developing their Critical Area Program. For the purpose of the MD iMap web service the Critical Area Data is displayed by two data layers, one general layer and one layer showing the available critical area data for local towns.This is a MD iMAP hosted service. Find more information at https://imap.maryland.gov.Feature Service Link: https://mdgeodata.md.gov/imap/rest/services/Environment/MD_CriticalAreas/MapServer/1

State of Maryland municipality boundary dataset.Maryland Department of Planning (MDP) maps annexations from municipalities. This dataset is created and maintained by the Maryland Department of Planning. These boundaries are not intended to serve as a legal description. Fields:MUN_NAME (Municipality Name): Name of Municipality located in Maryland.RESOLUTION_NUMBER (Resolution Number): Local Municipality Annexation Resolution Number.ANNEXATION_DATE (Annexation Date) (DD/MM/YYYY): The Annexation Date field shows when there's been a change in the boundary. This date is known as the “Effective Date” from the municipality. The date 1/1/1997 is used as a default date of when annexation changes were first indicated in the GIS layer and not necessarily of when it was actually annexed. If there's a date of 1/1/1997, it can be assumed that the annexation occurred on this date or before. For example, for Baltimore City, the city boundary was determined hundreds of years ago. Other than that default date, the date will show when the property was annexed. ACRES (GIS Acres): GIS calculated acres.JURSCODE (Jurisdiction Code) – Four letter county code: ALLE (Allegany), ANNE (Anne Arundel), BACI (Baltimore City), BACO (Baltimore County), CALV (Calvert), CARO (Caroline), CARR (Carroll), CECI (Cecil), CHAR (Charles), DORC (Dorchester), FRED (Frederick), GARR (Garrett), HARF (Harford), HOWA (Howard), KENT (Kent), MONT (Montgomery), PRIN (Prince George’s) QUEE (Queen Anne’s), SOME (Somerset), STMA (St. Mary’s), TALB (Talbot), WASH (Washington), WICO (Wicomico), WORC (Worcester).This is a MD iMAP hosted service. Find more information on https://imap.maryland.govhttps://mdgeodata.md.gov/imap/rest/services/Boundaries/MD_PoliticalBoundaries/FeatureServer/5

This is a comprehensive point theme that incorporates parcel ownership and address information, parcel valuation information and basic information about the land and structure(s) associated with a given tax assessment account. Data for the Parcel point theme are obtained from the State Department of Assessments and Taxation with added data from Maryland Department of Planning. The date the point was most recently published in Planning's data products MdProperty View and FINDER Quantum is contained in the mdpvdate field. The date of the most recent Assessments data linkage to MdProperty View/FINDER Quantum points is contained in the sdatdate field. Accounts deleted between those two dates are no longer represented as points. For more information on the attribute definitions please see the MdProperty View User's Guide, available for download at https://planning.maryland.gov/Pages/OurProducts/DownloadFiles.aspx . Please Note: Due to the extensive size of the parcel points file, download is recommended from the REST endpoint (https://mdgeodata.md.gov/imap/rest/services/PlanningCadastre/MD_PropertyData/MapServer/exts/MDiMapDataDownload/customLayers/0)This is a MD iMAP hosted service layer. Find more information at https://imap.maryland.gov.Feature Service Layer Link:https://mdgeodata.md.gov/imap/rest/services/PlanningCadastre/MD_PropertyData/MapServer/0**Please note, due to the size of this dataset, you may receive an error message when trying to download the dataset. You can download this dataset directly from MD iMAP Services at: https://mdgeodata.md.gov/imap/rest/services/PlanningCadastre/MD_PropertyData/MapServer/exts/MDiMAPDataDownload/customLayers/0**

The Comprehensive Zoning Map Process (CZMP) takes place every four years where any citizen may request a zoning change on any property in the County. The request for change is mapped as an issue. The County Council enacting legislation for each issue whether to retain the existing zoning or to enact a different zone(s) or district(s).

The Nova Map (World Edition) web map provides a detailed world basemap featuring a dark background with glowing blue symbology and colors that are reminiscent of science-fiction shows, where one is looking at a map of the world on a 'head's up' device or a map that would be projected from a transparent glass wall. The map is designed with a grid pattern across the ocean and stripes or square stippled patterns for land use features visible at larger scales. Additional graphics in the oceans presents a futuristic user interface. The futuristic and less terrestrial feel theme continues with the geometric patterns, starburst city dot symbols, and cool color scheme. The fonts displayed are clean and squarish (san serif) with a futuristic, science-fiction, or high technology appearance.This basemap, included in the ArcGIS Living Atlas of the World, uses the Nova vector tile layer.The vector tile layer in this web map is built using the same data sources used for other Esri Vector Basemaps. For details on data sources contributed by the GIS community, view the map of Community Maps Basemap Contributors. Esri Vector Basemaps are updated monthly.Use this MapThis map is designed to be used as a basemap for overlaying other layers of information or as a stand-alone reference map. You can add layers to this web map and save as your own map. If you like, you can add this web map to a custom basemap gallery for others in your organization to use in creating web maps. If you would like to add this map as a layer in other maps you are creating, you may use the tile layer referenced in this map.

This feature class represents the petitioned sewer master plan areas that have been introduced in previous years through cycle amendments within Baltimore County. All information was gathered from petition and approval documentation, with the property boundaries given on source maps used to compile geographic features from existing digital cadastral data. These features contain spatial data representing the boundaries of petitioned and effective master plans areas, as well as information about the effective date, cycle amendment numbers, associated properties, zoning designations, councilmanic and election districts, feature lineage, location within the BCMD and Urban Rural Demarcation Line (URDL), and links to digital source documentation.The sewer master plan geodatabase includes a feature data set (sewerMasterPlan) containing three feature classes: SCurMasterPlan, sewerCombined and SHisMasterPlan. The feature classes participate in a topology (tsewerMasterPlan). The SCurMasterPlan feature class represents the petitions for the current cycle. The sewerCombined represents the current master plan designation within the county. The SHisMasterPlan contains all of the petitions areas from all cycles. The geodatabase includes relationship classes that associate related table containing information on assessments, councilmanic districts, election districts, lineage (feature level metadata), plan map, recommendations and zoning designations.

In this feature class, the number of structures within a park parcel is given by four fields described below:Count_of_Buildings_In_Parcel: This field counts the total number of structures contained in a particular park parcel.Count_of_Buildings_Outside_FZ: This field counts the number of structures contained in a particular park parcel that do not fall within the 100-year or 500-year flood zones.Count_of_Buildings_in_500yr_FZ: This field counts the number of structures contained in a particular park parcel that also intersect flood zone X per the 2022 preliminary Digital Flood Insurance Rate Map.Count_of_Buildings_in_100yr_FZ: This field counts the number of structures contained in a particular park parcel that also intersect the FEMA special flood hazard area per the 2022 preliminary Digital Flood Insurance Rate Map.The building structures counted in this feature class include Residential, Commercial, Institutional, Garages, Other structures, Buildings under Construction, Water Towers, Storage Tanks, and Silos, as provided by Baltimore County.

This feature class represents the petitioned water master plan areas that have been introduced in previous years through cycle amendments within Baltimore County. All information was gathered from petition and approval documentation, with the property boundaries given on source maps used to compile geographic features from existing digital cadastral data. These features contain spatial data representing the boundaries of petitioned and effective master plans areas, as well as information about the effective date, cycle amendment numbers, associated properties, zoning designations, councilmanic and election districts, feature lineage, location within the BCMD and Urban Rural Demarcation Line (URDL), and links to digital source documentation.The water master plan geodatabase includes a feature data set (WaterMasterPlan) containing three feature classes: WCurMasterPlan, WaterCombined and WHisMasterPlan. The feature classes participate in a topology (tWaterMasterPlan). The WCurMasterPlan feature class represents the petitions for the current cycle. The WaterCombined represents the current master plan designation within the county. The WHisMasterPlan contains all of the petitions areas from all cycles. The geodatabase includes relationship classes that associate related table containing information on assessments, councilmanic districts, election districts, lineage (feature level metadata), plan map, recommendations and zoning designations.

The Comprehensive Zoning Map Process (CZMP) takes place every four years where any citizen may request a zoning change on any property in the County. The request for change is mapped as an issue. The County Council enacting legislation for each issue whether to retain the existing zoning or to enact a different zone(s) or district(s).