To define the minimum plan review requirements to obtain a building permit for the installation of a Modular or Prefabricated Building. Code requirements that apply to newly constructed buildings also apply to these prefabricated structures except state approved plans which are accepted without additional review. 

Last updated: February 2024

How to guide for purchasing a trade permit online through iPermits portal.

The guide explains the requirements and procedures of the City of Houston-approved fabricator program. 

Last updated: February 20, 2026

This is a building permit application for Electrical Systems and Wiring within the city limits of Houston, Texas.

Last updated: January 2026

This is an example inspection letter for a Solar APP+ project. For an example of a typical solar panel system, refer to form CE-1387a.

Last updated: Nov. 17, 2022 

Last Updated: June 20, 2025.

This is an example of an inspection letter for a typical solar panel system. For a Solar APP+ project, refer to form CE-1387b.

Last updated: Nov. 17, 2022

The following drawing is an example of typical construction and can be used as a reference.

NOTE: This is not an engineered drawing.  

Complete and attach this form to each plan set. Commercial plans must be submitted with this form in order for your plans to be considered as complete for the purpose of plan review.

Updated: October 4, 2024

Registration & Renewal Process for State Air Conditioning Licenses.

Last updated: 03/08/2024