Codes, rules, and guides

Breadcrumb: Codes, rules, and guides

Intro (~24,595 tokens, spilled to sibling files): Intro

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• [doc] Residential Building Code Guides — Footer section of Portland's residential building code guides page, containing navigation links to city services and operational information for the Development Services Center where building permits…
• [doc] Building Official Determination 25-03: Adding a bathroom — BOD 25-03 clarifies that bathrooms can be added to non-habitable spaces using alternatives from the Habitable Spaces Code Guide, with specific requirements for egress paths, stairways, and structural…
• [doc] Building Official Determination 25-02: Seismic Benchmarking — Building Code Guides (BCGs) and Building Official Determinations (BODs) are complementary documents that answer building code application questions and outline optional alternatives, with BODs addres…
• [doc] Building Official Determination 25-01: Helical Piles & Push Piers — BODs (Building Official Determinations) and BCGs (Building Code Guides) provide answers about building code applications, with BODs addressing smaller-scope, simpler questions and Code Guides offerin…
• [doc] Building Official Determination 24-01: R-4 Relative Hazard Classification — BOD 24-01 determines that R-4 occupancies (supervised residential buildings with 6-16 occupants) are assigned to Relative Hazard Classification 4, positioned between R-3 (lower hazard) and I-1 (highe…
• [doc] Building Official Determination 23-01: Tree and Fauna Lighting — BOD 23-01 specifies that electrical wiring on trees and plants installed for more than 90 days requires a City of Portland Urban Forestry permit rather than an electrical trades permit, with detailed…
• [doc] Building Official Determination 24-02: Demolition — Building Official Determinations (BODs) and Building Code Guides (BCGs) are regulatory documents explaining building code application and optional alternates, with BODs handling smaller-scope questio…
• [doc] Building Official Determination 21-05: Habitable vs. Non-habitable Accessory Structures — BOD 21-05 clarifies that heated detached accessory structures 200 sq ft or less can be exempt from building permits if they lack a kitchen, won't be used for sleeping, and aren't used for business pu…
• [doc] Building Official Determination 22-02: Fire Sprinkler Protection of Unprotected Glazed Openings — BOD 22-02 provides an alternate method for fire sprinkler protection of glazed openings in fully sprinklered buildings using additional standard spray sprinkler heads as a water curtain, eliminating…
• [doc] Building Official Determination 21-04: Guards at Occupied Roofs — BOD 21-04 establishes three acceptable barrier options to delineate occupied roof walking areas in Portland when roof decks are more than 36" from the roof edge, addressing ambiguity in the 2019 OSSC.
• [doc] Building Official Determination 22-01: Day care exemption to fire sprinklers — BOD 22-01 determines that certain daycare facilities in Oregon homes can be exempt from fire sprinkler requirements if located on the level of exit discharge and meet specific conditions, following a…
• [doc] Building Official Determination 21-03: Minimum Dwelling Unit Size — BOD 21-03 clarifies that any dwelling unit with living, sleeping, cooking, and eating provisions in one room is an efficiency dwelling unit and must have a main room of at least 190 square feet, adop…
• [doc] Building Official Determination 21-01: Carports Under 200 sf — BOD 21-01 exempts detached carports under 200 sq ft from building permits, and allows attached carports the same exemption if 3+ feet from property lines; however, zoning permits are always required…
• [doc] Building Official Determination 20-01: Congregate Living Facility or Dwelling Unit? — Building Code Guides (BCGs) and Building Official Determinations (BODs) are regulatory guidance documents explaining building code application. BODs address simpler, smaller-scope questions while Cod…
• [doc] Building Official Determination 19-09: Air Admittance Valves — BOD 19-09 permits Air Admittance Valves as alternate venting for new plumbing fixtures in commercial/industrial buildings when traditional vents cannot be installed, subject to specific conditions an…
• [doc] Building Official Determination 21-02: Fire Pump Room Access — BOD 21-02 clarifies when fire pump room access can be provided through interior building portions instead of directly from the exterior or through a two-hour fire-rated passageway, allowing access th…
• [doc] Building Official Determination 19-08: Dryer Vent Screening — BOD 19-08 permits louvers (instead of screens) at clothes dryer vent terminations under Portland's jurisdiction, provided they meet specific placement, configuration, and safety conditions including…
• [doc] Building Official Determination 19-07: Protection of Smokeproof Enclosure Ventilation Systems — BOD 19-07 clarifies which equipment, control wiring, and power wiring in smokeproof enclosure ventilation systems must be fire-protected, and permits alternative protection methods where secondary po…
• [doc] Building Official Determination 19-06: Accessory Kitchens — Building Official Determination 19-06 allows multiple kitchens in single-family dwellings under specific Portland conditions to prevent illegal conversions to multi-family structures. Accessory kitch…
• [doc] Building Official Determination 19-05: Small Assembly Occupancies — BOD 19-05 establishes conditions for classifying multi-room dining/drinking establishments as B Occupancy, requiring independent exits per room, limited partition openings, and a 99-person maximum to…
• [doc] Building Official Determination 19-04: Residential demolition slab salvage — BOD 19-04 allows demolition of one- or two-family accessory structures while retaining the concrete slab for parking, patios, or similar uses, provided no protrusions remain and future structural use…
• [doc] Building Official Determination 19-03: Suspended Wire Electric Security Systems — BOD 19-03 exempts suspended wire electric security systems (electrified fences) from building permits if they meet specific design and location conditions, though an electrical permit is still requir…
• [doc] Building Official Determination 19-02: Calculated fire protection of wood columns, beams, and solid wood decking — BOD 19-02 provides three calculation-based methods for determining fire protection ratings of wood structural members without requiring an approved appeal, applicable to structures governed by Oregon…
• [doc] Building Official Determination 19-01: Supporting construction for fire rated horizontal separations — Building Official Determination 19-01 establishes that exterior bearing walls supporting fire rated horizontal separations require fire protection from interior only when fire separation distance exc…
• [doc] Building Official Determination 16-02: All-Gender Restrooms — BOD 16-02 clarifies that modern building code permits all-gender restrooms with specified privacy, ventilation, and fixture requirements. Water closets must be fully enclosed floor-to-ceiling with lo…
• [doc] Building Official Determination 15-01: NFPA 13D Sprinklers in Garages — Building Official Determination 15-01 clarifies that NFPA 13D sprinkler systems ARE required to include sprinklers in garages under specific Portland conditions, with quick-response sprinkler heads m…
• [doc] Building Official Determination 17-01: Shared Stormwater Facilities — BOD 17-01 permits stormwater facilities to be shared across multiple lots if four conditions are met: BES approval, dual-lot service, recorded operations and maintenance agreements, and recorded ease…
• [doc] Building Official Determination 13-01: HDPE Sewer Pipe — BOD 13-01 permits high-density polyethylene (HDPE) pipe for sanitary sewer drainage in existing buildings as an alternative to OPSC-listed materials, provided it is marked as HDPE, extends no more th…
• [doc] Building Official Determination 06-01: Parking Garage Headroom — BOD 06-01 permits wall-mounted items (shelves, storage, piping, ductwork) to encroach into the required 7'-0" parking garage headroom clearance under six specific conditions, including maximum 24" pr…
• [doc] Building Official Determination 16-01: Simplex Pumps — BOD 16-01 permits simplex pumps for sewage ejection in commercial buildings where gravity drainage is not possible, with defined limits on fixture types and quantities per pump, subject to sizing and…
• [doc] Building Official Determination 02-01: Plaster Ceilings — Building Code Guides (BCGs) and Building Official Determinations (BODs) are documents that provide answers about building code application and outline optional alternates, with BODs addressing simple…
• [doc] Building Official Determination 06-02: Private ROW — BOD 06-02 allows buildings fronting private rights-of-way to use the same exterior wall and projection provisions as buildings on public streets, provided specific conditions regarding width, clearan…
• [doc] Building Official Determination 96-01: Elevated Private Driveways — Building Official Determination 96-01 specifies that elevated private driveways and parking decks must be designed to support AASHTO HS-20 design truck loading (minimum), or HS-25 if they provide fir…
• [doc] Building Official Determination 97-01: Separate Electrical Services — BOD 97-01 permits multiple electrical services in a single building through Fire Wall or Fire Barrier separation. A two-hour-rated Fire Barrier is an acceptable alternative to a Fire Wall if it exten…
• [doc] Building Official Determination 96-02: Assembly in Pre-1979 Group B Occupancies — This page introduces Building Official Determinations (BODs) and Building Code Guides (BCGs) as Portland regulatory documents that provide guidance on building code application, with BODs addressing…
• [doc] Building Official Determination 94-01: Shoring Adjacent to City Streets — BOD 94-01 specifies design requirements for excavation shoring on private property adjacent to city streets in Portland, requiring compliance with AASHTO LRFD Bridge Design Specifications and local c…
• [doc] Plumbing Code Guides — Portland's plumbing code guides provide interpretations and alternatives to Oregon Plumbing Specialty Code requirements through Building Code Guides (BCGs) and Building Official Determinations (BODs).
• [doc] Building Code Guide 00-10: Accessory Dwelling Units (ADU) — ADUs must comply with Oregon Residential Specialty Code (ORSC) for two-family dwellings as modified by alternative standards in this Code Guide, except when the building falls under Oregon Structural…
• [doc] Building Code Guide 96-12: Habitable Spaces — Building Code Guides (BCGs) and Building Official Determinations (BODs) are documents that explain building code application and outline optional alternatives, differing primarily in scope and comple…
• [doc] Building Code Guide 03-11: Private Plumbing Easements — Building Code Guides provide a comprehensive alternative to complex code requirements.
• [doc] Building Code Guide 03-10: Adhesive Anchors — BCG 03-10 outlines two acceptable methods for using adhesive anchors in unreinforced masonry buildings for seismic strengthening. Portland Permitting & Development accepts either ICC-ES approved syst…
• [doc] Building Code Guide 06-10: Fire Sprinklers in R Occupancies — Oregon Structural Specialty Code requires automatic fire sprinkler systems in buildings with Group R (residential) occupancies. Three conditions specify when sprinklers are required when converting o…
• [doc] Building Code Guide 04-10: Corridor Alcoves — Building Code Guides (BCGs) provide a comprehensive alternative to complicated code requirements.
• [doc] Building Code Guide 12-11: Four-Story Code Guide — BCG 12-11 establishes six conditions enabling four-story residential structures to be regulated under Oregon's three-story limit Residential Specialty Code, including fire sprinkler systems, egress d…
• [doc] Building Code Guide 12-10: FRP Screening — Building Code Guide 12-10 establishes that Fiber Reinforced Plastic (FRP) is an approved material for constructing rooftop antenna screens in Portland, required because conventional materials interfe…
• [doc] Building Code Guide 06-11: Temporary Indoor Shelters — Building Code Guides (BCGs) provide comprehensive alternatives to complex code requirement sets. This page introduces BCG 06-11 on Temporary Indoor Shelters but contains minimal substantive detail.
• [doc] Building Code Guide 15-10: Prefabricated Structure Foundations — Building Code Guides (BCGs) are a simplified alternative to complex building code requirements.
• [doc] Building Code Guide 13-10: Type III Code Guide — BCG 13-10 allows non-fire-retardant-treated wood framing in exterior walls of Type III construction R-2 occupancy buildings as an alternative to fire-retardant-treated wood, provided specified condit…
• [doc] Building Code Guide 17-11: Seismic Certification — BCG 17-11 specifies that seismic certification of mechanical, electrical, and plumbing components in Designated Seismic Systems must follow ASCE/SEI 7-10 standards, with requirements applying only to…
• [doc] Building Code Guide 17-10: Drywell Location — Building Code Guides (BCGs) and Building Official Determinations (BODs) are advisory documents that explain building code application and offer optional alternatives, with BODs narrower in scope than…
• [doc] Building Code Guide 18-10: Breweries and Distilleries — Building Code Guides (BCGs) and Building Official Determinations (BODs) are resources that provide answers about building code application and optional alternates. BODs address simpler, narrower ques…
• [doc] Building Code Guide 19-10: Temporary Arts and Cultural Events — Building Code Guides (BCGs) and Building Official Determinations (BODs) provide answers about building code application and optional alternates, with BODs addressing simpler questions and Code Guides…
• [doc] Building Code Guide 16-10: Temporary Prefabricated Structures — Building Code Guides (BCGs) and Building Official Determinations (BODs) are reference documents that provide answers about building code application and optional alternates; BODs address simpler, nar…
• [doc] Building Code Guide 19-12: Slope Hazard Evaluations — Building Code Guides (BCGs) and Building Official Determinations (BODs) clarify building code applications and provide optional alternatives, with BODs addressing narrower issues and Code Guides offe…
• [doc] Building Code Guide 22-10: Office Spaces — Building Code Guides (BCGs) and Building Official Determinations (BODs) are reference documents that provide answers about building code applications and outline alternatives to complex requirements.…
• [doc] Building Code Guide 23-10: Fire Rated Walls and Projections — Building Code Guides (BCGs) and Building Official Determinations (BODs) are documents that clarify building code application and present optional alternatives. BCGs provide comprehensive guidance for…
• [doc] Building Code Guide 23-11: URM Seismic Retrofits — BCG 23-11 provides an alternate method for seismic retrofits of unreinforced masonry buildings that simplifies design by allowing new vertical elements to resist 100% of seismic loads, thereby classi…
• [doc] Building Code Guide 24-10: Seismic Retrofit Options — Building Code Guides (BCGs) and Building Official Determinations (BODs) are reference documents that explain building code application and provide optional alternatives. BCGs offer comprehensive guid…
• [doc] Building Code Guide 19-11: Townhouses — Building Code Guides (BCGs) and Building Official Determinations (BODs) are regulatory documents explaining building code application and optional alternatives. BODs address narrower, simpler questio…
• [doc] Building Code Guide 25-10: Single Stair Apartments — Portland allows apartment buildings with a single exit stairway to exceed the standard 3-story limit up to 4 stories by following 2025 OSSC Appendix Q provisions, with additional fire safety requirem…
• [doc] Building Code Guide 99-10: Generators — Building Code Guides (BCGs) and Building Official Determinations (BODs) provide interpretations of building code applications, with BODs addressing simpler questions and Code Guides offering comprehe…
• [doc] Building Code Guide 96-11: Cargo Containers — BCG 96-11 allows cargo containers to be used as accessory storage structures in residential, multi-family, commercial, and industrial zones, provided they meet specific criteria including storage-onl…

Source

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