Official sources
Every answer has a starting point.
Inspect the official publications behind our guides. Each use is labeled as a guide citation, supplement source or archived reference, with a link to the relevant section or review history.
Search all captured official documents and saved versions →
View source checks and pending reviews →
Austin Development Services
Land Development Academy: Austin Water Site Plan Plumbing Reviews
www.austintexas.gov · Official publication
Chicago Department of Buildings
Building permit status help
webapps1.chicago.gov · Official publication
City and County of Denver Community Planning and Development
ADMIN 131.4 Homeowner Permits
denvergov.org · Official publication
City and County of Denver Community Planning and Development
Building and Fire Codes
www.denvergov.org · Official publication
City and County of Denver Community Planning and Development
Demolition Permits for Accessory Structures
www.denvergov.org · Official publication
City and County of Denver Community Planning and Development
New ADU Address Entrance Requirements
www.denvergov.org · Official publication
City and County of Denver Community Planning and Development
Plan Review, Permits, and Inspections
www.denvergov.org · Official publication
City and County of Denver Community Planning and Development
Residential Solar Photovoltaic Energy Systems Permits — DRC R324
www.denvergov.org · Official publication
City of Atlanta — Department of City Planning, Office of Buildings
Checklist - Additions and Conversions with Site Work, Single Family
www.atlantaga.gov · Official publication
City of Atlanta — Department of City Planning, Office of Buildings
Checklist - Alterations and Conversions without Site Work, Single Family
www.atlantaga.gov · Official publication
City of Atlanta — Department of City Planning, Office of Buildings
Checklist - New Single Family
www.atlantaga.gov · Official publication
City of Atlanta — Department of City Planning, Office of Buildings
Work Exempt from a Permit
www.atlantaga.gov · Official publication
City of Atlanta Department of City Planning
Apply for a Technical Permit
www.atlantaga.gov · Official publication
City of Atlanta Department of City Planning
Atlanta Construction Codes
www.atlantaga.gov · Official publication
City of Atlanta Department of City Planning
Inspections & Code Enforcement
www.atlantaga.gov · Official publication
City of Atlanta Department of City Planning
Office of Buildings
www.atlantaga.gov · Official publication
City of Atlanta Department of City Planning
Online Permitting
www.atlantaga.gov · Official publication
City of Austin Development Services
Additional Dwelling Units
www.austintexas.gov · Official publication
City of Austin Development Services
Apply for a Residential Building Permit
www.austintexas.gov · Official publication
City of Austin Development Services
Apply for a Standalone Permit
www.austintexas.gov · Official publication
City of Austin Development Services
Certificate of Occupancy
www.austintexas.gov · Official publication
City of Austin Development Services
Development Services News — Residential Plan Review Lighting Controls
www.austintexas.gov · Official publication
City of Austin Development Services
Schedule a Building Inspection
www.austintexas.gov · Official publication
City of Austin Development Services
Work Exempt from Building Permits
www.austintexas.gov · Official publication
City of Boston
Welcome to Boston Permitting
www.boston.gov · Official publication
City of Boston Inspectional Services
How to Get a Record of Legal Occupancy
content.boston.gov · Official publication
City of Boston Inspectional Services
How to Schedule an Inspection
www.boston.gov · Official publication
City of Chicago Department of Buildings
Building Permit and Inspection Records
webapps1.chicago.gov · Official publication
City of Chicago Department of Buildings
Certificate of Occupancy Application
webapps1.chicago.gov · Official publication
City of Chicago Department of Buildings
Chapter 13-32 Building Permits
codelibrary.amlegal.com · Official publication
City of Chicago Department of Buildings
Chicago building permit application instructions
chicago.gov · Official publication
City of Chicago Department of Buildings
City of Chicago Online Permits
ipiweb.cityofchicago.org · Official publication
City of Chicago Department of Buildings
General repair exemption limits — 14A-4-402.2.1
codelibrary.amlegal.com · Official publication
City of Chicago Department of Buildings
Permit application supporting documents
codelibrary.amlegal.com · Official publication
City of Chicago Department of Buildings
Reroofing requirements — 14R-3-306
codelibrary.amlegal.com · Official publication
City of Chicago Department of Buildings
Residential repair exemptions — 14A-4-402.2.2
codelibrary.amlegal.com · Official publication
City of Dallas Planning and Development
Residential addition checklist
dallascityhall.com · Official publication
City of Houston
2026 Building Code Enforcement Fee Schedule
www.houstonpermittingcenter.org · Official publication
City of Houston
Electronic Plan Review Contact and Inspection Information
www.houstonpermittingcenter.org · Official publication
City of Houston
Homeowner Mechanical/HVAC Building Permit Application (CE-1352)
www.houstonpermittingcenter.org · Official publication
City of Houston
Residential A/C Utility Release
www.houstonpermittingcenter.org · Official publication
City of Houston
Residential Power Backup Systems and Service Connections (CE-1419)
www.houstonpermittingcenter.org · Official publication
City of Houston
Residential Re-Roof Only Worksheet (CE-1109)
www.houstonpermittingcenter.org · Official publication
City of Houston
Residential Repairs Permit Guidelines
www.houstonpermittingcenter.org · Official publication
City of Houston
Solar Photovoltaic Panel Permit and Inspection Guide
www.houstonpermittingcenter.org · Official publication
City of Miami Building Department
Miami-Dade How to Apply for a Permit
www.miamidade.gov · Official publication
City of Miami Building Department
NET Permit Portal
apps.miami.gov · Official publication
City of Miami Building Department
Permitting Services
www.miami.gov · Official publication
City of Miami Building Department
Residential permit categories
archive.miami.gov · Official publication
City of Minneapolis
Construction permit application process
www.minneapolismn.gov · Official publication
City of Minneapolis
Detached accessory dwelling unit key minimum code requirements
www.minneapolismn.gov · Official publication
City of Minneapolis
Express limited permits for contractors
www.minneapolismn.gov · Official publication
City of Minneapolis
Permit applicant checklist for solar energy installations
www.minneapolismn.gov · Official publication
City of Minneapolis
Residential mechanical work inspection process
www.minneapolismn.gov · Official publication
City of Philadelphia Department of Licenses and Inspections
Get an Excavation Site Permit
www.phila.gov · Official publication
City of Phoenix Planning and Development Department
Accessory Dwelling Unit Residential Process
www.phoenix.gov · Official publication
City of Phoenix Planning and Development Department
Accessory Dwelling Units
www.phoenix.gov · Official publication
City of Phoenix Planning and Development Department
Fees, Valuations and Assurances
www.phoenix.gov · Official publication
City of Phoenix Planning and Development Department
Fence Permit Application
www.phoenix.gov · Official publication
City of Phoenix Planning and Development Department
Residential Fences and Walls
www.phoenix.gov · Official publication
City of Phoenix Planning and Development Department
Residential Inspections
www.phoenix.gov · Official publication
City of Phoenix Planning and Development Department
Residential Process Overview
www.phoenix.gov · Official publication
City of Phoenix Planning and Development Department
Residential Projects
www.phoenix.gov · Official publication
City of Phoenix Planning and Development Department
SolarAPP/Photovoltaic Projects
www.phoenix.gov · Official publication
City of Phoenix Planning and Development Department
Water Heaters in Residential Garages
www.phoenix.gov · Official publication
City of San Diego Development Services Department
Accessory Dwelling Unit / Junior Accessory Dwelling Unit — IB 400
www.sandiego.gov · Official publication
City of San Diego Development Services Department
Building Permit
www.sandiego.gov · Official publication
City of San Diego Development Services Department
Electrical Permit
www.sandiego.gov · Official publication
City of San Diego Development Services Department
Fee Schedule for Construction Permits — IB 501
www.sandiego.gov · Official publication
City of San Diego Development Services Department
Fee Schedule for Mechanical, Electrical, Plumbing/Gas Permits — IB 103
www.sandiego.gov · Official publication
City of San Diego Development Services Department
How to Obtain a Permit for Solar Photovoltaic Systems — IB 301
www.sandiego.gov · Official publication
City of San Diego Development Services Department
Mechanical Permit
www.sandiego.gov · Official publication
City of San Diego Development Services Department
Minimum Standards for Renewal of Roof Covering — IB 123
www.sandiego.gov · Official publication
City of San Diego Development Services Department
Residential Rooftop-Mounted Solar Photovoltaic Permit
www.sandiego.gov · Official publication
City of San Diego Development Services Department
Simple No-Plan Plumbing/Gas Permit
www.sandiego.gov · Official publication
City of San Diego Development Services Department
Standard Fences — IB 222
www.sandiego.gov · Official publication
City of San Diego Development Services Department
What Permits Do I Need?
www.sandiego.gov · Official publication
codelibrary.amlegal.com
Chicago Code — 14A-4-401.1 permit required
codelibrary.amlegal.com · Official publication
codelibrary.amlegal.com
Chicago Code — 14A-4-402.1 general exemptions
codelibrary.amlegal.com · Official publication
codelibrary.amlegal.com
Chicago Code — 14A-4-402.3 code compliance
codelibrary.amlegal.com · Official publication
codelibrary.amlegal.com
Chicago Code — 14A-4-404.2 boilers and pressure vessels
codelibrary.amlegal.com · Official publication
codelibrary.amlegal.com
Chicago Code — 14A-4-404.6 electrical work and contractors
codelibrary.amlegal.com · Official publication
codelibrary.amlegal.com
Chicago Code — 14A-4-404.7 fences and landmarks
codelibrary.amlegal.com · Official publication
District of Columbia Department of Buildings
Alteration & Repair Permit
dob.dc.gov · Official publication
District of Columbia Department of Buildings
Building Permit Fee Schedule
dob.dc.gov · Official publication
District of Columbia Department of Buildings
Energy and Green Building Solar
dob.dc.gov · Official publication
District of Columbia Department of Buildings
Flats and Accessory Apartments Guide
dob.dc.gov · Official publication
District of Columbia Department of Buildings
Get a Supplemental Permit
dob.dc.gov · Official publication
District of Columbia Department of Buildings
Instant Permits for Simple Scopes of Work
dob.dc.gov · Official publication
District of Columbia Department of Buildings
Plumbing and Gas Permit
dob.dc.gov · Official publication
District of Columbia Department of Buildings
Request Inspection
dob.dc.gov · Official publication
Los Angeles Department of Building and Safety
Accessory Dwelling Unit
dbs.lacity.gov · Official publication
Los Angeles Department of Building and Safety
Contractor Step-By-Step
dbs.lacity.gov · Official publication
Los Angeles Department of Building and Safety
Design Professional Step-By-Step
dbs.lacity.gov · Official publication
Los Angeles Department of Building and Safety
Early Start Permits — P/BC 2026-097
dbs.lacity.gov · Official publication
Los Angeles Department of Building and Safety
How Do I Schedule an Inspection?
dbs.lacity.gov · Official publication
Los Angeles Department of Building and Safety
LADBS electrical permits
dbs.lacity.gov · Official publication
Los Angeles Department of Building and Safety
LADBS Express permits
dbs.lacity.gov · Official publication
Los Angeles Department of Building and Safety
LADBS P/BC 2026-150: ADU conversions and existing units
dbs.lacity.gov · Official publication
Los Angeles Department of Building and Safety
LADBS P/BC 2026-161: AB 2533 streamlined permitting
dbs.lacity.gov · Official publication
Los Angeles Department of Building and Safety
LADBS Plan Review & Permitting
dbs.lacity.gov · Official publication
Los Angeles Department of Building and Safety
LADBS Services
dbs.lacity.gov · Official publication
Los Angeles Department of Building and Safety
LADBS YOU-ADU standard plan
dbs.lacity.gov · Official publication
Los Angeles Department of Building and Safety
Los Angeles City Planning
planning.lacity.gov · Official publication
Los Angeles Department of Building and Safety
News and Announcements
dbs.lacity.gov · Official publication
Los Angeles Department of Building and Safety
Regular Plan Check
dbs.lacity.gov · Official publication
Los Angeles Department of Water and Power
LADWP electric service FAQs
www.ladwp.com · Official publication
Los Angeles Department of Water and Power
LADWP residential meter spotting
www.ladwp.com · Official publication
Los Angeles Unified School District
LAUSD school impact fee rates and payment information
impactfee.lausd.org · Official publication
Mecklenburg County Code Enforcement
Electrical information for homeowners
code.mecknc.gov · Official publication
Mecklenburg County Code Enforcement
Schedule an inspection
code.mecknc.gov · Official publication
Metropolitan Government of Nashville and Davidson County
Apply for a Use and Occupancy letter
www.nashville.gov · Official publication
Metropolitan Government of Nashville and Davidson County
Building permit process
www.nashville.gov · Official publication
Metropolitan Government of Nashville and Davidson County
Detached accessory dwelling unit
www.nashville.gov · Official publication
Metropolitan Government of Nashville and Davidson County
E-Permits system
www.nashville.gov · Official publication
Metropolitan Government of Nashville and Davidson County
Fence requirements
www.nashville.gov · Official publication
Metropolitan Government of Nashville and Davidson County
General construction and permit publications
www.nashville.gov · Official publication
Metropolitan Government of Nashville and Davidson County
Renovate a single-family residence
www.nashville.gov · Official publication
Metropolitan Government of Nashville and Davidson County
Residential building permit procedures
www.nashville.gov · Official publication
Metropolitan Government of Nashville and Davidson County
Restrictive covenants
www.nashville.gov · Official publication
Metropolitan Government of Nashville and Davidson County
Solar panel photovoltaic permits
www.nashville.gov · Official publication
Metropolitan Government of Nashville and Davidson County
Trades permits
www.nashville.gov · Official publication
Metropolitan Government of Nashville and Davidson County
Zoning examinations
www.nashville.gov · Official publication
Miami-Dade County Department of Regulatory and Economic Resources
Building & Permits
www.miamidade.gov · Official publication
Miami-Dade County Department of Regulatory and Economic Resources
Building Officials Advisory Memos
www.miamidade.gov · Official publication
Miami-Dade County Regulatory and Economic Resources
Building Inspections
www.miamidade.gov · Official publication
Miami-Dade County Regulatory and Economic Resources
Certificate of Occupancy and Certificate of Use
www.miamidade.gov · Official publication
Miami-Dade County Regulatory and Economic Resources
Other Permits — Extensions and Reissuance
www.miamidade.gov · Official publication
Miami-Dade County Regulatory and Economic Resources
Plan Status and Application Submittal Portal
www2.miamidade.gov · Official publication
Miami-Dade County Regulatory and Economic Resources
Plan Status and Application Submittal Portal
www.miamidade.gov · Official publication
Minnesota Department of Labor and Industry
Electrical permits for homeowners
dli.mn.gov · Official publication
Minnesota Department of Labor and Industry
Minneapolis electrical inspection information
www.dli.mn.gov · Official publication
New York City Department of Buildings
2025 NYC Electrical Code: special installations
www.nyc.gov · Official publication
New York City Department of Buildings
2026 Electrical Release Service Notice
www.nyc.gov · Official publication
New York City Department of Buildings
Buildings service updates — September 25-26, 2026 maintenance
home4.nyc.gov · Official publication
New York City Department of Buildings
DOB NOW Build FAQs: permit expiration
www.nyc.gov · Official publication
New York City Department of Buildings
DOB NOW Inspections Plus FAQs
www.nyc.gov · Official publication
New York City Department of Buildings
Does My Project Require a Permit?
www.nyc.gov · Official publication
New York City Department of Buildings
Electrical Construction Advisories
www.nyc.gov · Official publication
New York City Department of Buildings
Electrical Plan Review: current intake and package
www.nyc.gov · Official publication
New York City Department of Buildings
Mechanical Design Requirements
www.nyc.gov · Official publication
New York City Department of Buildings
Project Requirements: Contractor Permit and Insurance
www.nyc.gov · Official publication
New York City Department of Buildings
Service Updates — Electrical Plan Review Intake
www.nyc.gov · Official publication
New York City Department of Buildings
Temporary Certificate of Occupancy
www.nyc.gov · Official publication
New York City; hosted by American Legal Publishing
NYC Administrative Code 28-112.2.2
codelibrary.amlegal.com · Official publication
Philadelphia Department of Licenses and Inspections
Accessory Uses FAQ
www.phila.gov · Official publication
Philadelphia Department of Licenses and Inspections
Construction inspections
www.phila.gov · Official publication
Philadelphia Department of Licenses and Inspections
Construction Permit Extension Information Sheet
www.phila.gov · Official publication
Philadelphia Department of Licenses and Inspections
Department and permit resources
www.phila.gov · Official publication
Philadelphia Department of Licenses and Inspections
eCLIPSE Changes Log
www.phila.gov · Official publication
Philadelphia Department of Licenses and Inspections
eCLIPSE FAQs
www.phila.gov · Official publication
Philadelphia Department of Licenses and Inspections
Get a Certificate of Occupancy
www.phila.gov · Official publication
Philadelphia Department of Licenses and Inspections
Get a Fence Permit
www.phila.gov · Official publication
Philadelphia Department of Licenses and Inspections
Get a permit to install solar panels
www.phila.gov · Official publication
Philadelphia Department of Licenses and Inspections
Get a zoning permit for new construction or additions
www.phila.gov · Official publication
Philadelphia Department of Licenses and Inspections
Get an electrical permit
www.phila.gov · Official publication
Philadelphia Department of Licenses and Inspections
Get Permits Without Plans — EZ Permits
www.phila.gov · Official publication
Philadelphia Department of Licenses and Inspections
Request an L&I inspection
www.phila.gov · Official publication
Philadelphia Department of Licenses and Inspections
Residential fence height and permit FAQ (September 2021)
www.phila.gov · Official publication
Philadelphia Water Department
PWD Development Services Newsletter – September 2026
water.phila.gov · Official publication
Portland Permitting & Development
Do you need a permit for your home project?
www.portland.gov · Official publication
Portland Permitting & Development
Fence Residential Building Permits
www.portland.gov · Official publication
Portland Permitting & Development
Residential Electrical Permits
www.portland.gov · Official publication
Portland Permitting & Development
Residential Mechanical Permits
www.portland.gov · Official publication
Portland Permitting & Development
Residential Permits and Inspections
www.portland.gov · Official publication
Portland Permitting & Development
Residential Plumbing Permits
www.portland.gov · Official publication
Portland Permitting & Development
What You Need to Apply for a Permit
www.portland.gov · Official publication
Public Health – Seattle & King County
Plumbing and gas applications and permits
kingcounty.gov · Official publication
Public Health – Seattle & King County
Plumbing and gas inspections
kingcounty.gov · Official publication
San Francisco Department of Building Inspection
Accessory Dwelling Unit Design & Permitting
www.sf.gov · Official publication
San Francisco Department of Building Inspection
Apply for a building permit
www.sf.gov · Official publication
San Francisco Department of Building Inspection
Apply for a reroofing permit
www.sf.gov · Official publication
San Francisco Department of Building Inspection
Electrical Permit Application Worksheet
www.sf.gov · Official publication
San Francisco Department of Building Inspection
Mechanical Permit Application Worksheet
www.sf.gov · Official publication
San Francisco Department of Building Inspection
Permit Application Timelines, Expiration and Extensions
www.sf.gov · Official publication
San Francisco Department of Building Inspection
Plumbing/Mechanical Permit Issuance and Inspection Fees
www.sf.gov · Official publication
San Francisco Department of Building Inspection
Prepare for an accessory dwelling unit project
www.sf.gov · Official publication
San Francisco Department of Building Inspection
Schedule and pay for your inspection
www.sf.gov · Official publication
Seattle Department of Construction & Inspections
Accessory Dwelling Unit
www.seattle.gov · Official publication
Seattle Department of Construction & Inspections
Applicants Can Now Pause Permit Reviews on Master Use Permits
buildingconnections.seattle.gov · Official publication
Seattle Department of Construction & Inspections
Construction and Inspections — Updates
www.seattle.gov · Official publication
Seattle Department of Construction & Inspections
Construction Inspections
www.seattle.gov · Official publication
Seattle Department of Construction & Inspections
Construction Permit - Addition or Alteration
citylink.seattle.gov · Official publication
Seattle Department of Construction & Inspections
Construction Permit Performance
www.seattle.gov · Official publication
Seattle Department of Construction & Inspections
Contact Us — Hours & Location
www.seattle.gov · Official publication
Seattle Department of Construction & Inspections
Do You Need a Permit?
www.seattle.gov · Official publication
Seattle Department of Construction & Inspections
Electrical Inspections
www.seattle.gov · Official publication
Seattle Department of Construction & Inspections
Electrical Permit
www.seattle.gov · Official publication
Seattle Department of Construction & Inspections
Furnace & Refrigeration Permits & Inspections
www.seattle.gov · Official publication
Seattle Department of Construction & Inspections
How Do You Get a Permit?
www.seattle.gov · Official publication
Seattle Department of Construction & Inspections
How Much Will Your Permit Cost?
www.seattle.gov · Official publication
Seattle Department of Construction & Inspections
Mechanical Inspections
www.seattle.gov · Official publication
Seattle Department of Construction & Inspections
Mechanical Permit
www.seattle.gov · Official publication
Seattle Department of Construction & Inspections
Re-Roof Permit
www.seattle.gov · Official publication
Seattle Department of Construction & Inspections
Seattle Public Utilities Launches Updated Sanitary and Side Sewer Review
buildingconnections.seattle.gov · Official publication
Seattle Department of Construction & Inspections
Time to Apply for a Grading Season Extension
buildingconnections.seattle.gov · Official publication
Seattle Department of Construction & Inspections
Tip 101: Getting a Residential Dwelling Unit Permit
web.seattle.gov · Official publication
Seattle Department of Construction & Inspections
Tip 420: Solar Energy Systems for Residential Buildings
web.seattle.gov · Official publication
Seattle Department of Construction and Inspections
Building Permit Renewals
www.seattle.gov · Official publication
Seattle Department of Construction and Inspections
Building Permit Revisions
www.seattle.gov · Official publication
Seattle Department of Construction and Inspections
Construction Permits and Inspections FAQ
www.seattle.gov · Official publication
Seattle Department of Construction and Inspections
SEPA Review Threshold Update
www.seattle.gov · Official publication
web.seattle.gov
Seattle SDCI — Tip 116B: Establishing a Detached Accessory Dwelling Unit (summary)
web.seattle.gov · Official publication
www.boston.gov
Boston — Install or Replace a Water Heater or Boiler
www.boston.gov · Official publication
www.boston.gov
Boston — Sheet Metal Permit: applicant, documents, fees and inspection
www.boston.gov · Official publication
www.nyc.gov
NYC DOB — LAA fees and penalties for 1, 2, 3 family buildings (June 2018 PDF)
www.nyc.gov · Official publication
www.nyc.gov
NYC DOB — Limited Alteration Applications and emergency work
www.nyc.gov · Official publication
Source counts represent unique URLs. A publication can support more than one guide. Guide citations, supplement sources and archived references are labeled separately for each use. Archived links open the guide’s review history; they do not establish its current permit answer. Review dates are shown on the relevant guide and do not guarantee a source has remained unchanged. Read our source policy →