Igni Blog — ADU & building-permit insights
Practical, no-fluff guides on permit data, accessory dwelling units, California housing law and finding construction work — written for builders, contractors and lenders.
ADU
Detached vs Attached ADU: Pros, Cons, and How to Choose
Detached vs attached ADU compared: cost, privacy, lot impact, and construction trade-offs to help you choose the right type.
ADU
Garage Conversion ADU: A Complete Guide
Garage conversion ADU guide: feasibility, typical costs, the permit process, and parking-replacement rules to plan around.
ADU
JADU Explained: The Complete Guide to Junior ADUs
JADU guide: what a junior ADU is, size and kitchen rules, owner-occupancy requirements, and how it differs from a full ADU.
Permits
How Long Does a Building Permit Take? Realistic Timelines
How long does a building permit take? Realistic timeline ranges by project type, what drives delays, and how to speed approval.
Permits
What Happens If You Build Without a Permit?
What happens if you build without a permit? Stop-work orders, fines, retroactive permits, and resale and insurance risks explained.
Permits
Do You Need a Permit for a Shed or Deck?
Do you need a permit for a shed or deck? Typical size and height thresholds that trigger a permit — and why to check your jurisdiction.
California law
Am I Eligible for an SB-9 Lot Split?
SB-9 lot split eligibility: single-family zoning, excluded areas, tenant protections, and the owner-occupancy affidavit that decide who qualifies.
California law
SB-9 Requirements: A Step-by-Step Guide
SB-9 requirements step by step: confirm eligibility, prepare the application, ministerial review, the two-unit and lot-split combo, and build standards.
California law
SB-10 Explained: California's Local Upzoning Tool
SB-10 explained: how California's optional upzoning law lets cities zone transit-rich parcels for up to 10 units, and how it differs from SB-9.
ADU
ADU Rental Income: What to Expect
ADU rental income explained: what drives rent, long-term vs short-term, and how to think about ROI. General information, not financial advice.
ADU
ADU vs Home Addition: Which Is Right?
ADU vs home addition: a separate rentable unit versus extending your house. Compare permits, cost, rentability, and resale trade-offs.
ADU
Selling a House With an ADU: What to Know
Selling a house with an ADU: how appraisal and valuation work, permitted vs unpermitted disclosure, and buyer financing. General info, not advice.
ADU
Does an ADU Increase Property Taxes?
Does an ADU increase property taxes? How assessment works, why it varies by state and county, plus California's reassessment nuance.
ADU
Prefab vs Stick-Built ADU: Cost, Speed & Trade-offs
Prefab vs stick-built ADU: how modular and manufactured units compare to site-built construction on cost, timeline, permitting, and customization.
Leads
How to Find ADU Permit Leads (Before Your Competitors Do)
Find early ADU permit leads from official open-data feeds with typed ADU and SB-9/SB-10 flags across 65 US cities.
ADU
What Is an ADU? Types, Costs, and Permits Explained (2026)
What is an ADU? Learn accessory dwelling unit types, typical cost and timeline ranges, and permit basics for 2026.
California law
California SB-9 and SB-10 Explained: What Builders Need to Know
California SB-9 and SB-10 explained for builders: lot splits, by-right duplexes, eligibility, and finding eligible areas.
Permits
How to Get a Building Permit: A Contractor's Guide
A contractor's guide to getting a building permit: application steps, plan review, inspections, fees, and timelines.
Leads
The Best Construction Lead Sources for 2026 (Compared)
Compare the best construction lead sources for 2026: permit-data feeds, bid boards, referrals, and outreach.
Informational only, not legal advice. Housing and permitting rules change and vary by jurisdiction — verify current requirements before relying on anything here.