ADU Planning Blog
Expert advice on planning an ADU, industry insights, and tips for choosing the right builder. Stay informed with the latest from the ADU world.
Finding an ADU Architect in the Bay Area: When to Hire One and When to Skip It
Do you need an ADU architect in the Bay Area? When to hire one vs design-build, real cost and timeline figures, and vetted CSLB-licensed builders to compare.
•6 min read
ADU Drafting Services: What They Cost and How to Choose
ADU drafting services turn a concept into permit-ready plans. Here's what they cost in California, how they differ from an architect, and how to pick one.
•6 min read
Detached ADU Plans: What Homeowners Need to Know
Pre-approved, stock, or custom detached ADU plans? How each route changes your California permit timeline, budget, and build — and how to pick the right one.
•7 min read
What Is a JADU? A Homeowner's Guide to Finding a Junior ADU Builder
What a JADU is, what it costs, and how to find a junior ADU builder in California — size rules, owner-occupancy, and how to vet a licensed contractor.
•7 min read
Pre-Approved ADU Plans in Los Angeles: City vs. County Programs Explained
How pre-approved ADU plans work in Los Angeles: LA County's free Plan A, B, and C, the LADBS Standard Plan Program's 21-30 day permits, and the tradeoffs.
•6 min read
Building an ADU in San Pedro: A Homeowner's Guide
Planning an ADU in San Pedro? Real costs, LADBS permits, honest timelines, and vetted CSLB-licensed builders serving the Harbor Area — before you break ground.
•6 min read
ADU Design in Altadena: A Homeowner's Guide
Altadena ADU design guide: county permits, attached vs detached costs, timelines, and vetted CSLB-licensed design-build teams serving Altadena homeowners.
•7 min read
ADU Builders in Orange County: How to Choose
How to choose ADU builders in Orange County: vetting checklist, real costs and timelines, and an honest look at Superior ADUs and other CSLB-verified pros.
•6 min read
ADU Builders in Brea: A Homeowner's Guide
Compare vetted, CSLB-licensed ADU builders serving Brea, CA — real cost-per-square-foot ranges, permit timelines, deposit rules, and how to vet your contractor.
•6 min read
Finding an ADU Contractor in Union City: A Homeowner's Guide
How to hire an ADU contractor in Union City, CA: CSLB license checks, the $1,000 deposit cap, real cost and timeline figures, and vetted builders to compare.
•6 min read
Finding an ADU Builder in Tarzana: A Homeowner's Guide
How to find and vet a licensed ADU builder in Tarzana: real costs, LADBS permits, realistic timelines, and vetted Valley pros — plus what to ask first.
•6 min read
Finding an ADU Contractor in Pasadena: A Homeowner's Guide
How to hire an ADU contractor in Pasadena: the city's independent permit process, real cost and timeline figures, CSLB vetting steps, and vetted local pros.
•6 min read
More ADU guides
- Finding an ADU Contractor in Union City: A Homeowner's Guide
- How to Choose an ADU Contractor in Los Angeles: A Homeowner's Guide
- How to Find an ADU Builder in Clayton, CA: A Homeowner's Guide
- ADU Builders in Orange County: How to Choose
- ADU Construction in Studio City: A Homeowner's Guide
- ADU Builders in Brea: A Homeowner's Guide
- Finding an ADU Contractor in Pasadena: A Homeowner's Guide
- Finding an ADU Builder in Tarzana: A Homeowner's Guide
- How to Find the Right ADU Builder in Long Beach, CA
- Golden ADU Reviews: What Los Angeles Homeowners Are Saying
- ADU Builders in San Francisco: How to Choose the Right One
- Burbank ADU Builders: A Homeowner's Guide
- Finding an ADU Builder in Northridge: A Homeowner's Guide
- ADU Design in West Covina: A Homeowner's Guide
- How to Choose a Custom Home Builder in Santa Barbara
- Villa Homes Reviews: Ratings, Costs, and What to Expect
- SouthSTAR Construction Review: Is This Corona ADU Builder Right for You?
- Otto ADU Reviews & Company Profile: A Homeowner's Guide
- Finding an ADU Architect in the Bay Area: When to Hire One and When to Skip It
- ADU Guide for West Hills, CA (2026)
- ADU Guide for Tarzana, CA (2026)
- ADU Guide for Studio City, CA (2026)
- ADU Guide for North Hollywood, CA (2026)
- ADU Guide for Torrance, CA (2026)
- ADU Guide for Santa Monica, CA (2026)
- ADU Guide for Long Beach, CA (2026)
- ADU Guide for Culver City, CA (2026)
- ADU Guide for Northridge, CA (2026)
- ADU Guide for Santa Clarita, CA (2026)
- ADU Guide for Encino, CA (2026)
- ADU Guide for Sherman Oaks, CA (2026)
- ADU Guide for Reseda, CA (2026)
- ADU Guide for Los Angeles, CA (2026)
- ADU Guide for Pasadena, CA (2026)
- ADU Guide for Pomona, CA (2026)
- ADU Guide for Beverly Hills, CA (2026)
- ADU Guide for Glendale, CA (2026)
- ADU Guide for Canoga Park, CA (2026)
- ADU Guide for Hollywood, CA (2026)
- ADU Guide for Van Nuys, CA (2026)
- ADU Guide for Woodland Hills, CA (2026)
- ADU Guide for Valley Village, CA (2026)
- ADU Guide for Burbank, CA (2026)
- Movable Tiny House Third-Party Certification (ANSI A119.5 / NFPA 1192)
- Agency Referral Sheet (LA County Building and Safety)
- ADU / JADU / Movable Tiny House (MTH) Correction Sheet — LADBS Structural Plan Check Correction List
- LA County Pre-Approved ADU Standard Plans (Plan A / B / C)
- Minimum Plan Submittal Requirements for ADU/JADU (LA County Building & Safety)
- Ministerial Site Plan Review (ADU) — LA County Regional Planning
- Regional Planning Base Application (with Land Use Application) — ADU Entitlement Filing
- Detached ADU Los Angeles: Cost, Rules, Permits, and Builder Checklist
- Z-NET Jurisdiction & Zoning Lookup (LA County)
- ADU Contractors in Los Angeles: How to Compare Builders Before You Sign
- Water "Will-Serve" Letter (Local Water Company / Purveyor)
- Form 195 – Information on Fire Flow Availability for Building Permit
- Site-Specific Plot Plan (LA County ADU)
- DMV Recreational Vehicle / Park Trailer Registration & Title (REG 343)
- ADU Architect in Los Angeles: When You Need One and When You Do Not
- The Complete Guide to Permitting an ADU or Tiny Home in Los Angeles (2026)
- AB 2533 Legalization of Unpermitted ADUs & JADUs Built Before January 1, 2020 (Attachments A & B)
- Residential New Construction Building Permit – LA County (ADU/JADU)
- JADU Owner-Occupancy & No-Separate-Sale Covenant (Junior ADU Deed Restriction)
- LADBS Accessory Dwelling Unit (ADU) Building Permit
- LADBS ADU Standard Plan Program (Approved Standard Plans)
- Garage Conversion Contractor in Los Angeles: What to Check Before You Hire
- HCD Factory-Built Housing (FBH) Insignia
- Guidelines for Use and Permitting of Accessory Dwelling Unit – Movable Tiny House (LADBS Information Bulletin P/ZC 2023-021)
- Above-Garage ADU Los Angeles: Feasibility, Cost, Structure, and Permits
- Garage Conversion to ADU & JADU Standard Notes & Details (with Owner's Agreement)
- Attached ADU Los Angeles: Cost, Rules, Privacy, and Permit Tradeoffs
- Permit to Operate – Employee Housing (Agricultural Path)
- ½-Fractional Address Request (ADU Address Assignment), LA County
- Title 24 Energy Compliance Documentation & Mandatory Solar PV (Certificate of Compliance, CF1R) for ADUs
- How to Vet an ADU Builder in LA
- HELOC vs Cash-Out Refi for an ADU
- CalHFA ADU Grant 2026: $40K Status, Eligibility & Alternatives
- ADU Cost in Los Angeles
- Is an ADU Worth It in Los Angeles?
- How Much Can an LA ADU Rent For?
- What Is an ADU?
- Types of ADUs in California
- LADBS Standard Plan Program
- LADBS ADU Submittal Checklist
- How Long to Build an ADU in LA
- Prefab vs Custom ADU Cost
- Legalize an Unpermitted ADU in LA
- Can I Build an ADU in Los Angeles?
- ADU Permits in Los Angeles
- California ADU Laws 2026: Size, Setbacks, Parking & 60-Day Rules
- ADU vs JADU: Key Differences
- ADU Setback Rules in Los Angeles
- Do ADUs Raise California Property Taxes?
- Design-Build vs Architect and GC
- Finance an ADU With Little or No Equity
- ADU Utility and Sewer Hookup Costs
- ADU Size Limits in Los Angeles
- LA ADU Parking and Owner Rules
- ADU Impact Fees in California
- Best ADU Builders in Los Angeles
- ADU Financing in Los Angeles
- ADU Contractor Scams: 11 Red Flags Before You Hire in SoCal
- 60-Day ADU Approval Law: Reality
- ADU Builders in Pasadena
- Granny Flat, Casita, or In-Law Suite?
- Garage Conversion Cost in Los Angeles
- ADU Construction Loans in California
Pre-ADU Checkup — $499 — Get finalized permits, a pre-ADU checklist, and an on-site feasibility visit. Homeowners save $1,000s by doing this before engaging a contractor.