Target keywords: Renton building permit | deck permit Renton WA | Renton building department | permit cost Renton
Renton has grown significantly over the past decade, and the city’s Building Division has kept pace with a modern online permit system and responsive staff. For homeowners in Renton — from the Highlands to Talbot Hill to Benson Hill — here’s what you need to know.
Does My Project Need a Permit in Renton?
Decks Attached decks require a permit. Detached decks over 200 SF or 30+ inches above grade require a permit.
Fences Fences up to 6 feet in rear and side yards are typically exempt. Front yard fences are subject to height limits (typically 4 feet maximum in front setback areas).
ADUs Renton allows both attached ADUs and detached accessory structures. Building permit required.
Interior Remodels Standard: structural, electrical, plumbing, and HVAC require permits.
Renton Permitting Department
City of Renton Building Division – Website: rentonwa.gov/building – Permit portal: https://permitting.rentonwa.gov – Phone: (425) 430-7200 – Address: 1055 S Grady Way, Renton, WA 98057
Renton has an online permit portal for submittal and inspection scheduling.
Permit Fees in Renton
| Project | Estimated Fee |
|---|---|
| Deck (200–400 SF) | $400–$800 |
| Fence (if required) | $150–$350 |
| ADU | $2,000–$5,500+ |
| Kitchen remodel (with plumbing) | $600–$1,400 |
| Room addition | $1,200–$3,000 |
How Long Does Permitting Take in Renton?
- Simple projects: 2–4 weeks
- Standard residential: 5–12 weeks
- Complex projects: 3–6 months
What Renton Inspectors Check
Renton inspectors pay close attention to setbacks, lot coverage limits, and stormwater drainage for exterior projects. The city has steep-slope regulations in the Highlands and Talbot Hill areas — exterior work near slopes may trigger geotechnical review.
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