The building permit is the legal authorization to begin construction, the document that certifies the local building department has reviewed the proposed construction for compliance with applicable codes and has authorized the work to proceed. Without a building permit, construction cannot legally begin; work performed without permits may need to be demolished or retroactively permitted through a more complex process than initial permitting would have required.
Understanding how the permit process works, what applications are required, what triggers plan review delays, and how to manage the permit timeline across the specific markets where Innergy Integral operates, gives developers and construction managers the practical knowledge to schedule accurately and manage permit risk proactively.
What Permits Are Typically Required
A commercial or multifamily construction project typically requires multiple permits from multiple agencies, not just a single building permit, but a set of related permits whose combined approval is necessary before different phases of construction can begin.
Building permit. The primary permit that authorizes construction of the structure. Building permit review examines the construction documents for compliance with the building code, fire code, energy code, and accessibility standards. For multifamily and commercial projects, building permit review is conducted by plan review staff who may include structural, mechanical, electrical, and fire and life safety reviewers, each examining a different discipline within the submitted documents.
Mechanical permit. A separate permit, sometimes incorporated within the building permit, sometimes separately issued, that authorizes the installation of the HVAC, plumbing, and other mechanical systems.
Electrical permit. A separate permit for the electrical installation, reviewed by the building department or by the state electrical inspection program depending on the jurisdiction. In Washington, most commercial electrical work is inspected by L&I’s electrical program rather than by the local building department.
Civil and site development permits. Grading, clearing, drainage, and utility connection permits are issued by the city’s public works or engineering department, often on a separate track from the building permit. Civil permits must be issued before site grading and utility installation can begin, and civil permit review is frequently on the critical path for projects where the site requires significant grading or utility extension.
Fire sprinkler and alarm permits. Fire sprinkler and fire alarm systems are reviewed and permitted by the local fire marshal’s office, typically on a separate permit from the building permit. Sprinkler shop drawing review can take 4 to 8 weeks in active markets, a timeline that must be accounted for in the construction schedule.
What Causes Permit Review Delays
Plan review delays are the most consistently underestimated source of project schedule risk in development, and they vary dramatically between markets.
Comment cycles. Most plan review processes are iterative, the plan reviewer issues comments identifying code deficiencies, the design team addresses the comments and resubmits, and the reviewer checks the resubmission. Each cycle takes time, and the number of cycles required depends on the quality of the initial submission and the complexity of the project. First submissions with minor comment sets may complete in one or two cycles; first submissions with significant deficiencies may require three or more cycles, each adding weeks to the review timeline.
Reviewer availability. Building departments with constrained staffing relative to their permit volume produce longer review timelines independent of submission quality. Austin’s building department has been in a persistent understaffing condition for several years, a constraint that has driven current commercial permit review to 6 to 12 months regardless of submission quality. Seattle’s plan review times have similarly extended as development volume has increased without proportional reviewer staffing increases.
Multi-disciplinary coordination. Permits that require sign-off from multiple reviewers, structural, mechanical, electrical, fire life safety, energy, accessibility, can be delayed by any single reviewer’s workload or comment set. A permit that has cleared structural, mechanical, and energy review but is waiting on fire life safety review is not available; it requires all disciplines to clear simultaneously.
Incomplete submissions. Submissions that don’t include all required documents, that reference specifications that aren’t included, or that have internal inconsistencies that plan reviewers must flag will generate correction requests that delay the review clock. First-submission completeness, confirmed by a pre-submittal completeness check, reduces the most avoidable source of permit delay.
Market-Specific Permit Timelines
The realistic building permit timelines for commercial multifamily in Innergy Integral’s key markets as of 2024–2025:
Seattle: 9 to 15 months for mid-rise multifamily. Active design review adds 12 to 18 months before permit submission. Combined pre-construction timeline: 24 to 36 months from design start.
Austin: 6 to 12 months for commercial multifamily. Building department staffing constraints drive the longer end of that range for most current submissions.
Dallas and DFW: 3 to 6 months for well-prepared by-right projects. Discretionary approval (PD zoning) adds 6 to 12 months before permit submission.
Phoenix: 3 to 6 months for most commercial and multifamily projects. Design review in Scottsdale adds 6 to 10 months before permit submission.
Denver: 4 to 8 months, with active design review in specific overlay areas adding review time.
El Paso and secondary markets: 2 to 4 months. The building department review process is faster and less volume-constrained than the major metros.
Tacoma and Olympia: 4 to 8 months, faster than Seattle, reflecting a less constrained review environment and less adversarial entitlement process.
Spokane: 2 to 4 months. Among the fastest permit review environments in Washington State, reflecting the lower volume and less complex regulatory environment of Eastern Washington.
Proactive Permit Management
The most effective approach to permit timeline management is proactive engagement, scheduled pre-application meetings with plan review staff to identify comment areas before submission, completeness review of the permit package before submission, and active tracking of comment response and resubmission timing. Development teams that treat the permit process as an administrative queue to wait in produce longer timelines than those who treat it as a managed process to actively advance.
Innergy Integral provides these services in Dallas, TX and across our six-state footprint.
Related: Construction Management Services · SEPA and Washington State Development · Multifamily Construction Schedule · Construction Management Guide
Markets: Construction Management Seattle WA · Construction Management Austin TX · Construction Management Phoenix AZ