California Tiny Home & ADU Learning Center
Plain-English guides for zoning, parcel research, utilities, septic, fire access, vacant land, ADUs, tiny homes, and local department questions.
Featured guides
Tiny Homes
Can You Put a Tiny Home on Land in California?
Understand when a tiny home may be treated as an ADU, dwelling, manufactured home, RV, or temporary use before relying on land or backyard plans.
Read guideTiny Homes
Tiny Home on Wheels vs Tiny Home on Foundation
Compare THOW and foundation paths before buying a unit, signing a land contract, or assuming full-time occupancy will be recognized.
Read guideADUs
Why ADUs Are Often Easier Than Tiny Homes
Learn why ADUs usually have a more defined review path than tiny homes, especially where movable units are treated as RVs.
Read guideZoning
How to Check Zoning Before Buying Land
Learn a practical APN-first zoning check before buying rural, desert, mountain, coastal, or infill California land.
Read guideSeptic & Wells
Septic Feasibility Before Buying Land
Check environmental health, perc testing, leach-field area, reserve area, and well separation before relying on rural land.
Read guideFire Access
Fire Access Rules for Rural Parcels
Review driveway, turnaround, hydrant, fire-flow, WUI, and defensible-space issues that can affect rural buildability.
Read guideStart here
Topics
All guides
Tiny Homes
Can You Put a Tiny Home on Land in California?
Understand when a tiny home may be treated as an ADU, dwelling, manufactured home, RV, or temporary use before relying on land or backyard plans.
Read guideTiny Homes
Tiny Home on Wheels vs Foundation in California
Compare movable tiny-home classification risk with foundation-based dwelling review, including occupancy, utility, and permit questions.
Read guideADUs
Why ADUs Are Usually Easier Than Tiny Homes
See why California ADU law often gives owners a clearer starting point than tiny-home placement or occupancy requests.
Read guideBuying Land
What Is an APN?
Use the assessor parcel number to connect a property to official maps, zoning, jurisdiction, ownership, and due-diligence records.
Read guideZoning
How to Check Zoning Before Buying Land
Learn a practical APN-first zoning check before buying rural, desert, mountain, coastal, or infill California land.
Read guideZoning
How to Read a California Zoning Code
Break down zones, use tables, development standards, overlays, definitions, and local interpretation before relying on a zoning label.
Read guideZoning
What R-1 Zoning Usually Means
Research what r-1 zoning usually means through the parcel's jurisdiction, use table, overlays, setbacks, and official planning interpretation.
Read guideZoning
What Rural Residential Zoning Means
Research what rural residential zoning means through the parcel's jurisdiction, use table, overlays, setbacks, and official planning interpretation.
Read guideSeptic & Wells
Septic Feasibility Before Buying Land
Check environmental health, perc testing, leach-field area, reserve area, and well separation before relying on rural land.
Read guideFire Access
Fire Access Rules for Rural Parcels
Review driveway, turnaround, hydrant, fire-flow, WUI, and defensible-space issues that can affect rural buildability.
Read guideCalifornia Rules
Coastal Zone Issues for Tiny Homes and ADUs
Review coastal zone issues for tiny homes and adus through California ADU rules, local objective standards, utilities, fire access, and site limits.
Read guideBuying Land
Questions to Ask Planning Before Buying Land
Use questions to ask planning before buying land to spot access, title, parcel-status, and due-diligence issues before buying land.
Read guideSeptic & Wells
Questions to Ask Environmental Health
A focused California guide to questions to ask environmental health, including official questions, documents to collect, red flags, and practical next steps.
Read guideFire Access
Questions to Ask the Fire Department
Review questions to ask the fire department with fire authority questions about access, water supply, WUI standards, and defensible space.
Read guideVacant Land
Tiny Homes on Vacant Land: Common Problems
Spot vacant-land problems such as legal lot status, road access, utilities, septic, fire response, and zoning classification.
Read guideADUs
Garage Conversion vs Detached ADU
Review garage conversion vs detached adu through California ADU rules, local objective standards, utilities, fire access, and site limits.
Read guideTiny Homes
Manufactured Home vs Tiny Home
Review manufactured home vs tiny home through classification, zoning, utilities, building-code path, occupancy, and local verification.
Read guideTiny Homes
Park Model RV vs Tiny Home
Review park model rv vs tiny home through classification, zoning, utilities, building-code path, occupancy, and local verification.
Read guideCalifornia Rules
How County Jurisdiction Works
A focused California guide to how county jurisdiction works, including official questions, documents to collect, red flags, and practical next steps.
Read guideCalifornia Rules
City Limits vs Unincorporated County
Confirm whether a parcel is controlled by a city or unincorporated county before calling the wrong planning department.
Read guideTiny Homes
Tiny Home on Wheels vs Tiny Home on Foundation
Compare THOW and foundation paths before buying a unit, signing a land contract, or assuming full-time occupancy will be recognized.
Read guideADUs
Why ADUs Are Often Easier Than Tiny Homes
Learn why ADUs usually have a more defined review path than tiny homes, especially where movable units are treated as RVs.
Read guideZoning
What Agricultural Zoning Can Mean
Research what agricultural zoning can mean through the parcel's jurisdiction, use table, overlays, setbacks, and official planning interpretation.
Read guideSeptic & Wells
Well Water Questions Before Buying Land
Use well water questions before buying land to organize environmental health questions before assuming rural land can support a dwelling or ADU.
Read guideFire Access
Defensible Space Basics
Review defensible space basics with fire authority questions about access, water supply, WUI standards, and defensible space.
Read guideCalifornia Rules
Coastal Zone Issues
A focused California guide to coastal zone issues, including official questions, documents to collect, red flags, and practical next steps.
Read guideVacant Land
Flood Zone Issues
A focused California guide to flood zone issues, including official questions, documents to collect, red flags, and practical next steps.
Read guideVacant Land
Hillside and Slope Concerns
A focused California guide to hillside and slope concerns, including official questions, documents to collect, red flags, and practical next steps.
Read guideVacant Land
Private Road and Easement Concerns
Use private road and easement concerns to spot access, title, parcel-status, and due-diligence issues before buying land.
Read guideUtilities
Utility Connection Questions
Check utility connection questions before assuming service is physically available, legally connectable, or affordable to extend.
Read guideTiny Homes
Off-Grid Tiny Home Reality Check
Check off-grid tiny home reality check before assuming service is physically available, legally connectable, or affordable to extend.
Read guideADUs
Junior ADU Basics
Review junior adu basics through California ADU rules, local objective standards, utilities, fire access, and site limits.
Read guideTiny Homes
Tiny Home RV Classification Problems
Review tiny home rv classification problems through classification, zoning, utilities, building-code path, occupancy, and local verification.
Read guideCalifornia Rules
Questions to Ask Planning
A focused California guide to questions to ask planning, including official questions, documents to collect, red flags, and practical next steps.
Read guidePermits
Questions to Ask Building Department
Use questions to ask building department to prepare clearer building, plan-check, correction, inspection, and submittal questions.
Read guideUtilities
Questions to Ask Utility Providers
Check questions to ask utility providers before assuming service is physically available, legally connectable, or affordable to extend.
Read guideVacant Land
Documents to Collect Before Buying Land
Use documents to collect before buying land to spot access, title, parcel-status, and due-diligence issues before buying land.
Read guideVacant Land
What Is a Legal Lot?
Use what is a legal lot? to spot access, title, parcel-status, and due-diligence issues before buying land.
Read guideZoning
What Is a Setback?
A focused California guide to what is a setback?, including official questions, documents to collect, red flags, and practical next steps.
Read guideZoning
What Is Lot Coverage?
A focused California guide to what is lot coverage?, including official questions, documents to collect, red flags, and practical next steps.
Read guideProfessional Help
What Is Floor Area Ratio?
A focused California guide to what is floor area ratio?, including official questions, documents to collect, red flags, and practical next steps.
Read guideProfessional Help
What Are Development Standards?
A focused California guide to what are development standards?, including official questions, documents to collect, red flags, and practical next steps.
Read guideZoning
What Is a Conditional Use Permit?
Use what is a conditional use permit? to prepare clearer building, plan-check, correction, inspection, and submittal questions.
Read guideZoning
What Is a Variance?
A focused California guide to what is a variance?, including official questions, documents to collect, red flags, and practical next steps.
Read guideProfessional Help
What Is Site Plan Review?
A focused California guide to what is site plan review?, including official questions, documents to collect, red flags, and practical next steps.
Read guidePermits
What Is a Certificate of Occupancy?
A focused California guide to what is a certificate of occupancy?, including official questions, documents to collect, red flags, and practical next steps.
Read guideTiny Homes
Tiny Homes in Backyards
Review tiny homes in backyards through classification, zoning, utilities, building-code path, occupancy, and local verification.
Read guideTiny Homes
Tiny Homes on Vacant Land
Understand why vacant land requires full buildability review before assuming a tiny home can become a legal residence.
Read guideADUs
ADUs on Rural Parcels
Review adus on rural parcels through California ADU rules, local objective standards, utilities, fire access, and site limits.
Read guideADUs
ADUs in Fire Hazard Areas
Review adus in fire hazard areas with fire authority questions about access, water supply, WUI standards, and defensible space.
Read guideADUs
Septic and ADUs
Use septic and adus to organize environmental health questions before assuming rural land can support a dwelling or ADU.
Read guideProfessional Help
SB9 Basics
A focused California guide to sb9 basics, including official questions, documents to collect, red flags, and practical next steps.
Read guideTiny Homes
Buying Land for a Tiny Home
Use buying land for a tiny home to spot access, title, parcel-status, and due-diligence issues before buying land.
Read guideProfessional Help
Common Mistakes Buyers Make
A focused California guide to common mistakes buyers make, including official questions, documents to collect, red flags, and practical next steps.
Read guideProfessional Help
How to Call a Planning Department
A focused California guide to how to call a planning department, including official questions, documents to collect, red flags, and practical next steps.
Read guideProfessional Help
How to Use TinyHomeNavigator Guides
A focused California guide to how to use tinyhomenavigator guides, including official questions, documents to collect, red flags, and practical next steps.
Read guideTiny Homes
Can You Build a Tiny Home on Vacant Land?
Use can you build a tiny home on vacant land? to spot access, title, parcel-status, and due-diligence issues before buying land.
Read guideVacant Land
Can You Live in an RV on Your Own Land?
Use can you live in an rv on your own land? to spot access, title, parcel-status, and due-diligence issues before buying land.
Read guideUtilities
How to Check If Sewer Is Available
Check how to check if sewer is available before assuming service is physically available, legally connectable, or affordable to extend.
Read guideUtilities
How to Check If Water Is Available
Check how to check if water is available before assuming service is physically available, legally connectable, or affordable to extend.
Read guideSeptic & Wells
What Is a Perc Test?
Use what is a perc test? to organize environmental health questions before assuming rural land can support a dwelling or ADU.
Read guideSeptic & Wells
Why Soil Matters Before You Build
Use why soil matters before you build to organize environmental health questions before assuming rural land can support a dwelling or ADU.
Read guideVacant Land
Flood Zones and Small Homes
A focused California guide to flood zones and small homes, including official questions, documents to collect, red flags, and practical next steps.
Read guideVacant Land
Slope and Grading Issues
A focused California guide to slope and grading issues, including official questions, documents to collect, red flags, and practical next steps.
Read guideVacant Land
Easements Explained
Use easements explained to spot access, title, parcel-status, and due-diligence issues before buying land.
Read guideVacant Land
Road Access Explained
Use road access explained to spot access, title, parcel-status, and due-diligence issues before buying land.
Read guideUtilities
Utility Easements Explained
Check utility easements explained before assuming service is physically available, legally connectable, or affordable to extend.
Read guideADUs
ADU vs JADU
Review adu vs jadu through California ADU rules, local objective standards, utilities, fire access, and site limits.
Read guideADUs
Detached ADU vs Tiny Home
Review detached adu vs tiny home through California ADU rules, local objective standards, utilities, fire access, and site limits.
Read guideTiny Homes
Modular vs Manufactured vs Tiny Home
Review modular vs manufactured vs tiny home through classification, zoning, utilities, building-code path, occupancy, and local verification.
Read guideProfessional Help
California Building Code Basics
A focused California guide to california building code basics, including official questions, documents to collect, red flags, and practical next steps.
Read guideProfessional Help
Appendix Q Tiny House Code Explained
A focused California guide to appendix q tiny house code explained, including official questions, documents to collect, red flags, and practical next steps.
Read guidePermits
What Building Departments Actually Check
Use what building departments actually check to prepare clearer building, plan-check, correction, inspection, and submittal questions.
Read guidePermits
How Plan Check Works
Use how plan check works to prepare clearer building, plan-check, correction, inspection, and submittal questions.
Read guidePermits
How Permit Corrections Work
Use how permit corrections work to prepare clearer building, plan-check, correction, inspection, and submittal questions.
Read guidePermits
What a Permit Expediter Does
Use what a permit expediter does to prepare clearer building, plan-check, correction, inspection, and submittal questions.
Read guideProfessional Help
When You Need an Architect
A focused California guide to when you need an architect, including official questions, documents to collect, red flags, and practical next steps.
Read guideProfessional Help
When You Need a Civil Engineer
A focused California guide to when you need a civil engineer, including official questions, documents to collect, red flags, and practical next steps.
Read guideProfessional Help
When You Need a Surveyor
A focused California guide to when you need a surveyor, including official questions, documents to collect, red flags, and practical next steps.
Read guideProfessional Help
What a Site Plan Must Show
A focused California guide to what a site plan must show, including official questions, documents to collect, red flags, and practical next steps.
Read guideADUs
How to Estimate ADU Feasibility
Review how to estimate adu feasibility through California ADU rules, local objective standards, utilities, fire access, and site limits.
Read guideTiny Homes
How to Estimate Tiny Home Feasibility
Review how to estimate tiny home feasibility through classification, zoning, utilities, building-code path, occupancy, and local verification.
Read guideVacant Land
What to Ask Before Buying Land
Use what to ask before buying land to spot access, title, parcel-status, and due-diligence issues before buying land.
Read guideVacant Land
Red Flags in Cheap California Land
Use red flags in cheap california land to spot access, title, parcel-status, and due-diligence issues before buying land.
Read guideTiny Homes
Desert Land Tiny Home Warnings
Use desert land tiny home warnings to spot access, title, parcel-status, and due-diligence issues before buying land.
Read guideTiny Homes
Mountain Land Tiny Home Warnings
Use mountain land tiny home warnings to spot access, title, parcel-status, and due-diligence issues before buying land.
Read guideTiny Homes
Inland Empire Tiny Home Guide
Use inland empire tiny home guide to spot access, title, parcel-status, and due-diligence issues before buying land.
Read guideTiny Homes
Riverside County Tiny Home Guide
Review riverside county tiny home guide through classification, zoning, utilities, building-code path, occupancy, and local verification.
Read guideTiny Homes
San Bernardino County Tiny Home Guide
Review san bernardino county tiny home guide through classification, zoning, utilities, building-code path, occupancy, and local verification.
Read guideADUs
Los Angeles ADU and Tiny Home Guide
Review los angeles adu and tiny home guide through California ADU rules, local objective standards, utilities, fire access, and site limits.
Read guide