ADU & DADU Contractor — King County, WA

Add a Legal Dwelling Unit
to Your King County Property

From permit application to final walkthrough — Prolific handles design-build ADU and DADU projects across Federal Way, Issaquah, Renton, Kent, and greater King County.

$180KAverage ADU Cost (King County)
6–12moTypical Timeline Permit to Move-In
$1,800+Monthly Rental Income Potential
3–5yrAverage ROI Payback Period

What We Build

Every ADU project is custom-designed for your lot, your goals, and King County code.

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Detached ADU (DADU)

A standalone dwelling in your backyard. Most flexible for rental or multigenerational living. Requires setback compliance and separate utility connections.

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Attached ADU

Connected to the primary home via a shared wall. Lower cost than detached, faster permitting. Ideal for in-law suites or long-term rental income.

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Junior ADU (JADU)

Converted from existing interior space — garage, basement, or bonus room. Lowest cost entry point. Limited to 500 sq ft per King County code.

The King County Permitting Process

Prolific handles every step. Most homeowners have never pulled a permit — we've done hundreds.

1

Site & Zoning Review

We verify your parcel's zoning, setbacks, lot coverage, and utility capacity before design starts. Catches 80% of project-killers on day one.

2

Design & Engineering

Architectural plans drawn to King County standards. Structural engineering included where required. Typical design phase: 3–6 weeks.

3

Permit Submission

We submit to King County DPER or the applicable city (Federal Way, Renton, Issaquah, Kent). Electronic submission with full plan set.

4

Review & Corrections

County review typically takes 6–12 weeks. We respond to all correction requests and manage the back-and-forth until permit issuance.

5

Build & Final Inspection

Construction with milestone inspections. Final inspection and certificate of occupancy required before the unit can be rented or occupied.

Cost Ranges for King County ADUs

Rough estimates — every project varies by site, size, and finish level. Free estimate available after a site visit.

ADU TypeSize RangeTypical Cost Range
Junior ADU (JADU)Up to 500 sq ft$60,000 – $120,000
Attached ADU400–800 sq ft$120,000 – $200,000
Detached ADU (DADU)400–1,200 sq ft$160,000 – $320,000

Ready to Add a Unit to Your Property?

Free site consultation. We'll tell you what's possible on your lot before you spend a dollar.

Get Your Free ADU Estimate

Prolific's Differentiator

While We're Restoring Your Home, Let's Make It Better Than Before

Most contractors patch the damage and leave. We use the restoration as a launchpad — pairing insurance coverage with a remodel that upgrades what you had.

Storm + Remodel

Federal Way — Hail Damage + Kitchen Upgrade

Insurance covered the roof and siding. While we had the crew on-site, the homeowners financed a kitchen remodel they'd been putting off for years. One mobilization, two wins.

Water + Addition

Renton — Burst Pipe + Primary Bath Expansion

A burst pipe triggered an insurance claim for the subfloor and drywall. We rebuilt the bathroom larger than it was — same timeline, carrier paid the base, owner paid the delta.

Fire + Rebuild

Issaquah — Garage Fire + ADU Conversion

Garage total loss became a permitted two-car garage with a studio ADU above. Insurance rebuilt what burned. The ADU now generates rental income to offset the mortgage.

Insurance Claim? We Handle Everything.

Your Insurance Company Has Adjusters.
Now You Have Us.

STORM DAMAGE RESPONSEthousands more for homeowners just like you.

Storm Damage Repair Kirkland, WA

← All Kirkland Insurance Restoration Services

Storm Damage Repair in Kirkland, Washington

24/7 Emergency Storm Damage Response in Kirkland — We Handle Your Insurance Claim From A to Z

When a storm hits your Kirkland home, the damage can be overwhelming — torn shingles, broken siding, water pouring through your ceiling, fallen trees on your roof. You need a contractor who shows up fast, stops the damage from getting worse, and knows how to get your insurance company to pay for every dollar of repairs you’re entitled to. That’s exactly what Prolific Design-Build and Restoration does.

We’re not just a repair crew. We’re a full-service insurance restoration contractor that handles your entire storm damage claim from the first phone call to the final inspection. We document the damage, write Xactimate estimates in the same language your insurance company uses, meet with your adjuster, file supplements for hidden damage, and complete every repair to pre-loss condition.

Why Kirkland Homes Are Vulnerable to Storm Damage

Kirkland’s waterfront position on Lake Washington exposes properties to intense wind events that sweep across the lake. Hilltop neighborhoods like Finn Hill and Kingsgate experience some of the highest sustained wind speeds in King County during major storms.

Common Storm Damage We Repair in Kirkland

Lakefront properties in Juanita and Houghton regularly need emergency tarping and roof repairs. Finn Hill and Kingsgate homes lose shingles and siding panels to sustained gusts. The mature tree canopy creates significant risk for branch strikes and fallen tree damage.

Our Storm Damage Repair Services in Kirkland

  • Emergency Board-Up & Tarping — We secure your property within hours
  • Roof Repair & Replacement — From missing shingles to full tear-off
  • Siding Repair & Replacement — Wind-damaged, hail-dented, impact-broken panels
  • Gutter & Downspout Repair — Crushed, detached, and blocked systems
  • Window & Door Replacement — Broken glass, warped frames, failed seals
  • Water Damage Mitigation — Emergency extraction, structural drying, mold prevention
  • Fallen Tree & Debris Removal — Safe removal and structural assessment
  • Interior Damage Repair — Drywall, ceiling, flooring, and paint restoration

How We Handle Your Storm Damage Insurance Claim

Most Kirkland homeowners have never filed a storm damage claim before. Insurance companies know this. We level the playing field by documenting every item, writing Xactimate estimates, meeting your adjuster on-site, and filing supplements for hidden damage they miss.

  • Free Storm Damage Inspection — Photos, measurements, and detailed documentation
  • Xactimate Estimate Preparation — Industry-standard software insurance companies use
  • Insurance Claim Filing — Avoid common mistakes that delay claims
  • Adjuster Meeting & Negotiation — We walk through every line item on-site
  • Supplement Filing — Hidden damage documentation and recovery
  • Complete Restoration — Every repair from roof to foundation

Kirkland Neighborhoods We Serve

We provide storm damage repair and insurance restoration throughout Kirkland, including Juanita, Finn Hill, Kingsgate, Totem Lake, Norkirk, Market, Moss Bay, Houghton, and Rose Hill. Emergency response within 1-2 hours.

Why Choose Prolific Design-Build and Restoration for Storm Damage in Kirkland?

As an independent contractor, we work for you — not the insurance company. Unlike franchise restoration companies on preferred vendor lists, we have no incentive to minimize your claim. Our clients consistently receive higher payouts because we document thoroughly and fight for every dollar your policy covers. Washington state law gives you the right to choose your own contractor.

Call (425) 800-4775 for a free storm damage inspection in Kirkland, or contact us online. Emergency services available 24/7.

Related Resources

Dealing with storm damage? We're here — call now or submit your info and we'll call you within the hour.

We Got Your Request

We respond within 2 business hours — same day for emergencies.

A member of our team will reach out shortly to schedule your free estimate or inspection. Here's what to have ready when we call:

What to Have Ready

  • Photos of the damage or area of concern (phone photos are fine)
  • Your insurance carrier name and claim number (if applicable)
  • Best time and number to reach you
  • A rough idea of when the damage occurred or project timeline
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Prolific Design-Build & Restoration — Federal Way, WA

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