Points representing the locations of verified active addresses in the Portland Metro Region. Addresses been culled from the City of Portland Master Address Repository, Multnomah County Assessor Records and the RLIS Master Address Points dataset.--Additional Information: Category: Address Purpose: For mapping, geocoding, mailing, and analysis of addresses in the Portland Metro Region. Update Frequency: Twice Weekly-- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=54157

Location and detailed property and funding information on all rental properties.-- Additional Information: Category: Miscellaneous Purpose: Location and detailed property and funding information on all rental properties (5 units or greater) that have received direct or indirect financing from the Portland Housing Bureau or its predecessors. Direct and indirect financing subsidizes rental properties to provide below-market rents to income-qualified tenants. Update Frequency: Regular-- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=54551

County tax assessors tax lots, including rights of way, with associated property data, excluding ownership information. Selected items from each county assessor's file are included and standardized for all three counties. The tax lot spatial features and data associated with the tax lot are compiled by Metro from existing records created and maintained by the local county assessment and taxation offices. This is a downloadable zip file that includes the taxlots shapefile and layer files for visualizing taxlots with or without right of ways. Use the original feature layers if viewing the layers in ArcGIS Online: "Taxlots (Public)" or "Taxlots with Right of Way (Public)." Date of last data update: 2025-07-18 This is official RLIS data. Contact Person: Christine Rutan christine.rutan@oregonmetro.gov 503-797-1669 RLIS Metadata Viewer: https://gis.oregonmetro.gov/rlis-metadata/#/details/3733 RLIS Terms of Use: https://rlisdiscovery.oregonmetro.gov/pages/terms-of-use

This data layer is an element of the Oregon GIS Framework. The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation.

Census tracts are small, relatively permanent statistical subdivisions of a county or equivalent entity, and were defined by local participants as part of the 2020 Census Participant Statistical Areas Program. The Census Bureau delineated the census tracts in situations where no local participant existed or where all the potential participants declined to participate. The primary purpose of census tracts is to provide a stable set of geographic units for the presentation of census data and comparison back to previous decennial censuses. Census tracts generally have a population size between 1,200 and 8,000 people, with an optimum size of 4,000 people. When first delineated, census tracts were designed to be homogeneous with respect to population characteristics, economic status, and living conditions. The spatial size of census tracts varies widely depending on the density of settlement. Physical changes in street patterns caused by highway construction, new development, and so forth, may require boundary revisions. In addition, census tracts occasionally are split due to population growth, or combined as a result of substantial population decline. Census tract boundaries generally follow visible and identifiable features. They may follow legal boundaries such as minor civil division (MCD) or incorporated place boundaries in some States and situations to allow for census tract-to-governmental unit relationships where the governmental boundaries tend to remain unchanged between censuses. State and county boundaries always are census tract boundaries in the standard census geographic hierarchy. In a few rare instances, a census tract may consist of noncontiguous areas. These noncontiguous areas may occur where the census tracts are coextensive with all or parts of legal entities that are themselves noncontiguous. For the 2010 Census and beyond, the census tract code range of 9400 through 9499 was enforced for census tracts that include a majority American Indian population according to Census 2000 data and/or their area was primarily covered by federally recognized American Indian reservations and/or off-reservation trust lands; the code range 9800 through 9899 was enforced for those census tracts that contained little or no population and represented a relatively large special land use area such as a National Park, military installation, or a business/industrial park; and the code range 9900 through 9998 was enforced for those census tracts that contained only water area, no land area.

Regional buildings with building height and roof elevation information. Many buildings are constructed of multiple "polygons" representing the different building heights. All polygons making up a single building have the same "building ID" [Bldg_ID], which can be used to dissolve the buildings into generalized building footprints.--Additional Information: Category: Building Purpose: To develop and maintain an inventory of all buildings in the Portland metropolitan region. Used to store attribute information for buildings throughout the region. Also used for 3D modeling. Update Frequency: As Needed-- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=52412

This parcel map viewer primary use is to identify ones parcel information such as taxes, property pics, assessor value and etc.

Regional building footprints. Original buildings are constructed of multiple "polygons" representing the different building heights. All polygons making up a single building have the same "building ID" [Bldg_ID], which was used to dissolve the buildings into generalized building footprints. Attributes that apply to the entire building were retained.-- Additional Information: Category: Building Purpose: For mapping generalized building footprints, i.e., cartographic base maps. Update Frequency: Continually-- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=52413

The Historic Resource Inventory (HRI) of approximately 5,000 properties was completed in 1984 by the City of Portland as a project of the Historic Landmarks Commission. It is a planning and research tool that was intended to support development of the City's Comprehensive Plan and comply with Statewide Planning Goals. Being listed in the HRI is not a historic "designation, although a demolition delay period may apply under City of Portland regulations. In 2013, the original HRI records were exported from older files to MapWorks. Some data fields were abbreviated. There may be inconsistencies and errors in the data. For example, many sites have been redeveloped since 1984, and demolitions were not recorded. Also, over 100 buildings have been removed from the HRI on request of property owners. The HRI records cannot be updated to reflect all the changes and removals that have occurred since 1984. The data is therefore provided “as-is.” City of Portland records can be checked to verify if properties have been redeveloped or demolished.-- Additional Information: Category: Development Purpose: Map location of inventory list. Update Frequency: None planned-- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?=DisplayLayer=53478

The first step of the Bureau of Planning & Sustainability's Buildable Lands Inventory (BLI) model is used to identify parcels that are likely to redevelop in the City of Portland -- parcels that are either vacant or significantly underutilizing their allowed development capacity. FAR and building height limits are the primary limiting factor on development in employment, commercial, and high-density residential areas. In multi-family and single-family residential areas, capacities are determined by the allowed number of residential units.This portion of the BLI modeling process consists of 3 basic steps: 1) calculate existing building square footages and allowed development limits (in terms of building square footage or number of residential units); 2) identify parcels using significantly less than their allowed development capacity (using less than 20% of available capacity, not including any development bonuses or incentives); 3) apply development constraints to these parcels and calculate remaining capacity in terms of building square footage, allowed number of residential units, and allowed number of jobs.The attached graphics illustrate the process in more detail.

This featureclass is the result of that analysis. It is used to determine the total supply of residential and employment land, which is an input into subsequent steps of the BLI model, which allocates forecasted units and jobs to different areas of the City.--Additional Information: Category: Development Purpose: To quantify the existing development capacity within Portland under current and proposed land use regulations; to identify likely redevelopment scenarios and prospective clusters of future development activity by identifying sites that are significantly underutilizing their allowed development capacity; to generate development capacity statistics for different areas of the City to highlight the differences in terms of existing and allowed development capacity; and to serve as a basis for predicting residential and employment allocation based on regional growth forecasts. Update Frequency: As Needed-- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=52965

The N/NE Portland Enterprise and Electronic Commerce Zone is a public/private partnership program managed by the Portland Development Commission providing a 5 year property tax abatement on new investment, and for eligible E-Commerce businesses, a 25% state income/excise tax credit, in exchange for meeting job creation and other requirements aimed at business creation within N/NE Portland. Companies may benefit if they lease, as long as they are responsible for property tax payments.-- Additional Information: Category: Boundary Purpose: Boundary created to determine properties eligible for the Enterprise/E-Commerce Zone Program. Update Frequency: As needed-- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=52266

Taxlot or parcel boundaries associated with Portland Parks & Recreation management. Attribute values are joined from PP&R's Property Management database.-- Additional Information: Category: Parks Purpose: Represent taxlot or parcel boundaries of fee simple lands which PP&R has purchased, manages, or otherwise been assigned some type of responsibility. Update Frequency: As Needed-- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=52962

The BDS Residential Demolitions Permit dataset reflects current and historic building permits for the demolition of residential one and two family structures within the City of Portland. Demolitions are regulated by the City’s Building Regulation Code, Title 24. Demolition means the removal of the entire structure down to the subflooring, such that none of the existing superstructure is maintained. Demolition includes alteration, abandonment or removal of all of the existing perimeter foundation.--Additional Information: Category: Development Purpose: Demolitions of one and two family structures within residential zones have special notification and delay requirements within the City of Portland. The City of Portland notifies all abutting property owners and recognized organizations such as Neighborhood Associations. These types of demolitions also have a mandatory 35 day delay period for interested parties to work with the property owner to negotiate alternatives to demolition. After the delay period has elapsed the permit is issued and demolition activities can occur. Update Frequency: Continuous-- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=54377

Qualifying areas for the Homebuyer Opporunity Program--Additional Information: Category: Boundary Purpose: A. The Bureau of Planning shall be the agency responsible for designating homebuyer opportunity areas. The Portland Development Commission and the Bureau of Housing and Community Development shall be consulted in the designation process. The designation of such areas shall occur in the form of a public hearing conducted before the City Planning Commission through a legislative process appealable to City Council. If there is no appeal within 30 days of the decision by the Planning Commission, the decision shall be final. The Bureau of Planning shall make available maps indicating current homebuyer opportunity areas. The designation of the first homebuyer opportunity areas shall be conducted as nearly as possible in conjunction with the adoption of this ordinance implementing tax exemption in such designated areas. From the date of the first designation, a review of the areas for possible amendment of the boundaries of the homebuyer opportunity areas shall occur at least every three years. B. The criteria for designating homebuyer opportunity areas shall include a consideration of the following factors: 1. The area is primarily a residential area of the city which is detrimental to the safety, health and welfare of the community by reason of deterioration, inadequate or improper facilities; the existence of unsafe or abandoned structures, including but not limited to a significant number of vacant or abandoned single or multi-family residential units; or any combination of these or similar factors; and, 2. The incentive of limited property tax exemption in a homebuyer opportunity area will help to carry out adopted policies, or area-wide or district plans of the city related to housing or neighborhood revitalization. C. At no time shall the cumulative land area within the boundaries of homebuyer opportunity areas exceed 20 percent of the total land area of the city. D. The Bureau of Planning shall also establish the price limit of newly constructed single-unit housing eligible for the limited property tax exemption as provided by this Chapter. The price limit shall not exceed 120 percent of the median sales price of single-family homes located within the city. The median sales price shall be determined, with assistance by the County Assessor, using the sales data collected under ORS 309.200 for the period ending the prior November 30 relative to single-family homes. In addition, the Bureau of Planning may use data made available by the real estate and construction or other appropriate industry. The median sales price shall be established by resolution prior to January 1 of each year during the effective time of this program Update Frequency: As needed-- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=52267

This is a GIS layer representing the most current Tax Increment Finance (TIF) Districts. A TIF District is astate-authorized, redevelopment and finance program designed to helpcommunities improve and redevelop areas that are physically deteriorated,suffering economic stagnation, unsafe or poorly planned.--- Additional Infromation --- Category: Boundary Purpose: Used to determien the extent of the TIC Districts in the City of Portland and see if a property falls within or outside a district. Update Frequency: As Needed--- Metadata Link ---https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=61180

A Local Improvement District (LID) is a method by which a group of property owners can share in the cost of infrastructure improvements, most commonly for transportation and stormwater. This involves improving the street, building sidewalks, and installing a stormwater management system. An LID can also be used to install sidewalks on existing streets that previously have been accepted for maintenance by the City. Financing is offered for up to 20 years, with the first payment not due until after the project is complete.LIDs are most commonly used to improve unpaved streets. If an LID is formed, the City manages the design and construction of the project, and property owners do not pay until the work is complete. Streets can also be improved under a permit job, in which case the project is privately managed and financed up front by property owners. LIDs have also been successfully used to provide sanitary sewer, water main improvements, traffic signal and utility undergrounding improvements in conjunction with street improvements for economies of scale to provide comprehensive and complete infrastructure solutions to neighborhoods.-- Additional Information: Category: Transportation - Right-of-Way Management Purpose: For mapping the boundaries of the Local Improvement Districts in Portland. Update Frequency: As Needed-- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=52765

The FEMA Flood Hazard Layer represents the location and attributes of flood insurance risk zones from the Flood Insurance Rate Map (FIRM) databases published by the Federal Emergency Management Agency (FEMA), and any Letters of Map Revision (LOMRs) that have been issued against those databases since their publication date. It is updated on a monthly basis.

The FIRM Database is the digital, geospatial version of the flood hazard information shown on the published paper FIRMs. The FIRM Database depicts flood risk information and supporting data used to develop the risk data. The primary risk classifications used are the 1-percent-annual-chance flood event, the 0.2-percent-annual-chance flood event, and areas of minimal flood risk.

The floodway, 100-year floodplain/SFHA (Special Flood Hazard Area), and the 500-year floodplain are all derived from this dataset.--Additional Information: Category: Hazard Purpose: The FIRM is the basis for floodplain management, mitigation, and insurance activities for the National Flood Insurance Program (NFIP). Insurance applications include enforcement of the mandatory purchase requirement of the Flood Disaster Protection Act, which "... requires the purchase of flood insurance by property owners who are being assisted by Federal programs or by Federally supervised, regulated or insured agencies or institutions in the acquisition or improvement of land facilities located or to be located in identified areas having special flood hazards, " Section 2 (b) (4) of the Flood Disaster Protection Act of 1973. In addition to the identification of Special Flood Hazard Areas (SFHAs), the risk zones shown on the FIRMs are the basis for the establishment of premium rates for flood coverage offered through the NFIP. The FIRM Database presents the flood risk information depicted on the FIRM in a digital format suitable for use in electronic mapping applications. The FIRM Database serves to archive the information collected during the Flood Risk Project. Update Frequency: As needed-- Metadata Link: https://www.portlandmaps.com/metadata/index.cfm?&action=DisplayLayer&LayerID=54347