Garage Conversion Drawings · Kennewick, WA
Permit-Ready Garage Conversion
Drawings for Kennewick, WA
Convert your garage into permitted living space or a rental unit. We deliver complete, code-compliant drawing sets ready for Kennewick's building department — in 10 business days, starting at $997.
14-day money-back guarantee · 10 business day turnaround
Local Intelligence
What Kennewick Homeowners Need to Know Before Submitting
Size & Zoning Rules
Converting your garage to a legal rental unit means the finished space must comply with Kennewick's ADU size limits. Kennewick's current ADU size cap is 1,100 sq ft — within the typical range for most floor plan configurations.
A fully permitted, code-compliant garage conversion in Kennewick can command approximately $1,302/month as a 1-bedroom rental — far more than leaving the space as storage.
Permit Process & Fees
Community Planning Department — Building Safety Division permit fees for this project type typically range from $3,000 to $11,000 depending on project valuation and scope. Plan check runs approximately 8 weeks — though each correction cycle adds 3–6 weeks, which is why code-compliant drawings matter so much.
Garage conversion drawings submitted to Community Planning Department — Building Safety Division must include a site plan, floor plans, all four elevations, an electrical plan, and energy compliance documentation — plus stamped structural plans are typically required for converted garages that are detached or require seismic upgrades.
Visit Community Planning Department — Building Safety Division ↗Construction Cost Context
Kennewick's garage conversion construction costs run $200–$510 per square foot — a wide range driven by labor markets, local code complexity, and finish level. Our drawings are priced at a fraction of what a full-service architect would charge to produce the same permit set.
⚠ Common Pitfall in Kennewick
Kennewick's Building Safety Division will flag most older Southridge and Vista lots for a separate Irrigation District release before they'll issue your permit, since a chunk of the city still gets water rights through Kennewick Irrigation District rather than straight city water — homeowners routinely lose 2-3 weeks tracking down that paperwork because it's not mentioned on the standard checklist. You'll also want to budget for a new sewer side-sewer inspection if your lot was platted before the 1990s, since Benton County records on old clay pipe connections are spotty and the city won't sign off until a camera scope confirms the line can handle a second unit. Because Kennewick sits in SDC C, expect your engineer to add shear wall details even for a single-story ADU, which is a common surprise cost for homeowners pulling plans from out-of-state ADU templates.
Expert Verdict — Marcus Reid, Licensed Designer
"In my experience, that 8-week timeline and $250/sqft figure are really state-level averages dressed up as Kennewick-specific numbers, so I'd treat them as a starting point rather than a promise — get two or three local contractor quotes and call the Community Planning Department — Building Safety Division directly to check current plan check queue times before penciling in a start date. What the data also doesn't show is how much a first-round correction letter (common on ADU submittals) can push that timeline out well past two months."
Market Context
Kennewick has a median home value of $310,000. Comparable renovation projects in this market typically add 28.0% to resale value.
Neighborhoods in Kennewick with the strongest garage conversion and rental-unit potential include West Kennewick, Southridge, Canyon Lakes, Hansen Park, South Hill. Older single-family stock on larger lots close to downtown and healthcare employers makes ADUs practical and in demand.
Permit Process
Permit applications are reviewed by the Community Planning Department — Building Safety Division, with a plan check timeline of approximately 8 weeks. Permit fees in Kennewick range from $3,000 to $11,000 depending on project scope. Design review: Yes - citywide (Residential Design Standards apply; ADUs must meet standards and may be subject to site-plan/land-use review per city code).
Kennewick falls within Seismic Design Category Seismic Design Category C (SDC C), which affects structural requirements for converted garage walls and foundations.
Local Financing Resources
Local Garage Conversion Lenders in Kennewick
These lenders offer HELOC, construction, and renovation loans for garage conversion projects in Benton County. Compare terms before committing.
Offers construction loan options and other home loan products; membership required — contact local Kennewick branch for program limits and terms.
Visit Lender ↗Provides All-in-One (one-time-close) construction-to-permanent loans — loan amounts and rates depend on program and borrower qualifications.
Visit Lender ↗Offers HELOC and home equity products suitable for renovations/ADUs; membership required and terms vary by credit union underwriting.
Visit Lender ↗Local mortgage lender advertising one-time-close construction home loans for VA, FHA, USDA and conventional programs in Kennewick.
Visit Lender ↗Specialty renovation lender/marketplace that partners with credit unions and lenders nationwide; RenoFi offers renovation/HELOC products (prior-verified: loans $10k–$750k, up to ~90% LTV via partners).
Visit Lender ↗Build With A Plan is not affiliated with these lenders. Always compare rates and consult a mortgage professional.
Local Build Partners
Vetted Garage Conversion Contractors in Kennewick
We draw the plans. These contractors build the conversion. Independent — no referral fees paid or received.
Build With A Plan provides drawings only. We are not affiliated with these contractors and do not receive referral fees.
Drawing Package Details
What's Included in Your Kennewick Garage Conversion Package
Transparent Pricing
Kennewick Garage Conversion Drawing Packages
One-time fee. No retainer. No hourly billing.
- ✓Site plan
- ✓Floor plans
- ✓All 4 elevations
- ✓Electrical plan
- ✓Title 24 energy form
- ✓PDF + DWG delivery
- ✓10 business day turnaround
- ✓Everything in Starter
- ✓Structural plans (stamped)
- ✓Cross-section details
- ✓Window & door schedules
- ✓Material specifications
- ✓1 round of revisions
- ✓Everything in Standard
- ✓3D rendering
- ✓HOA submission package
- ✓ADU conversion alt plan
- ✓2 rounds of revisions
- ✓Priority 5-day turnaround
After You Order
Your Conversion Drawings in 3 Steps
Submit Your Garage Details
Share your property address, garage dimensions, and intended use (ADU, rental, home office). We confirm your order and assign your project coordinator within 4 business hours.
We Draft Your Drawings
Our team designs your complete conversion drawing set — engineered for Kennewick's building department requirements and WA code. Delivered in 10 business days.
Submit to Your Building Dept
Download your complete package and submit to Community Planning Department — Building Safety Division. We support plan check corrections at no extra charge.
Common Questions
Kennewick Garage Conversion FAQs
Is a garage conversion allowed in Kennewick? +
Yes — garage conversions are permitted in Kennewick. Washington state law allows homeowners to convert an attached or detached garage into habitable living space or an ADU. A building permit and permit-ready drawings are required before work begins.
How much does a garage conversion cost in Kennewick? +
Garage conversions in Kennewick typically range from $90,000 to $198,000 depending on the existing structure, finish level, and scope of work. This is significantly less than building a new detached ADU. Our drawing package starts at $997 — a fraction of what a local architect would charge for the same permit-ready set.
What drawings are required to permit a garage conversion in Kennewick? +
Kennewick's building department requires: a site plan showing the converted garage's location on the lot, floor plans with dimensions and room labels, all four exterior elevations, an electrical plan, and energy compliance documentation (Title 24 in California). Our Starter package covers all of these. If the garage is detached or the structure requires seismic upgrades, stamped structural drawings are also required — included in our Premium package.
How long does the permit process take for a garage conversion in Kennewick? +
Plan check in Kennewick typically takes approximately 8 weeks. Having complete, code-compliant drawings dramatically reduces correction cycles — which each add 3–6 weeks. Our drawings are designed to pass on the first submittal.
Can I convert my garage into a rental unit in Kennewick? +
Yes — a permitted garage conversion can function as a standalone rental unit (ADU or JADU depending on size). In California, converted garages under 500 sq ft qualify as Junior ADUs (JADUs), while larger conversions qualify as full ADUs. Both can be rented long-term. Short-term rental rules vary by city — confirm with Kennewick's planning department.
Do I need to replace the garage door opening when converting? +
Yes. The garage door must be replaced with an insulated wall with a standard entry door and at least one egress window (minimum 5.7 sq ft clear opening). This is captured in our elevation drawings and flagged in the electrical plan. The new wall must also meet WA energy code requirements, which we handle in the Title 24 compliance documentation.
How much does it cost to get garage conversion drawings in Kennewick? +
Our permit-ready garage conversion drawing packages for Kennewick start at $997. Local architects typically charge $2,500–$6,000 for the same set. Every package is engineered for WA code compliance and formatted for Kennewick's building department. Turnaround is 10 business days with a 14-day money-back guarantee.
Will converting my garage increase my home's value in Kennewick? +
A permitted garage conversion in Kennewick adds rentable square footage to a home currently valued around $310,000. Converted spaces typically appraise as habitable square footage, increasing the home's value. As an ADU or JADU, the rental income stream is also capitalized into the appraised value — typically at a 5–6% cap rate.
Also Available in Kennewick
Need full ADU design drawings instead?
Next Steps
Ready to Move Forward With Your Kennewick ADU?
You've evaluated your property's eligibility, run the numbers, and seen the market data. The next step is getting permit-ready architectural drawings to submit to Community Planning Department — Building Safety Division.
Hire a Local Architect
$3,000 – $8,000
- ·4–8 weeks turnaround
- ·Fully custom design
- ·In-person consultations
- ·Direct line to architect
Best for: Highly customized projects, complex sites, or homeowners who want an ongoing designer relationship.
Build With A Plan
$997 – $2,997
- ✓10 business days turnaround
- ✓Permit-ready, CA-code compliant
- ✓Same documents your building dept needs
- ✓14-day money-back guarantee
Best for: Homeowners who want fast, affordable permit-ready drawings for a standard ADU build.
Both options produce permit-ready architectural drawings accepted by Community Planning Department — Building Safety Division. The right choice depends on your timeline, budget, and how much customization your project requires.