Daviess County, Indiana requires a building permit for construction, and its Building & Compliance Department administers the process.1 County zoning also applies, while the Health Department handles permits for properties using onsite sewage systems.23
At a glance
- Building permit
- Required for construction in Daviess County1
- Zoning
- County zoning applies2
- Septic
- Apply before construction through the county Health Department34
- RV living
- Private-land residential occupancy is not confirmed; ask Building & Compliance2
- Tiny homes
- No specific occupancy rule confirmed; ask Building & Compliance about the parcel2
- Owner-builder
- No explicit exemption confirmed; ask Building & Compliance before starting work5
- Private well
- Local residential-well permitting is not resolved; ask the Health Department67
Who to call
Building permits
Daviess County Building & Compliance Department
Building-code enforcement, plan review, permits and inspections in Daviess County
Septic permits
Daviess County Health Department
Septic system applications and environmental health questions
300 East Hefron Street, Washington, IN 47501
Roads & driveways
Daviess County Highway Department
County roads, bridges, small structures and rights-of-way outside cities and towns
5247 E 100 N, Montgomery, IN 47558
Contact details are copied from each office’s official page and were checked against it on September 27, 2026.
Do you need a building permit in Daviess County, Indiana?
Yes. Daviess County requires a building permit for construction, administered by the county Building & Compliance Department.1 The department reviews plans, issues permits and conducts inspections to enforce state and local minimum standards.8
Indiana has adopted statewide building and residential codes, but which code provisions apply depends on the type of structure.9 An agricultural building used only for agriculture on the same land and not for retail trade is outside the state Class 1 design-release category, but that does not exempt it from Daviess County permits, zoning or inspections.10 Daviess County has not confirmed an owner-builder exemption, so an owner acting as general contractor should ask Building & Compliance what applications and inspections apply before work begins.5
Who issues building permits in Daviess County?
The Daviess County Building & Compliance Department is the first call for building permits, plan review, inspections and zoning-related forms; its published phone number is 812-444-5798.8 The county page links an improvement-location permit application and zoning-compliance forms.8
The available county information does not identify the inspection stages, a certificate-of-occupancy rule or a current county fee schedule. Ask Building & Compliance which drawings, approvals, fees and inspections match the proposed structure before ordering materials. Indiana state design-release review may also apply to a Class 1 project, and local permits may still be required even when state filing is not.11 Residential and agricultural inspections remain matters for the local government where a local entity administers them.12
Does Daviess County have zoning?
Yes. The Daviess County Advisory Plan Commission administers the county zoning ordinance and makes recommendations on rezoning or ordinance modifications, while the Board of Zoning Appeals hears development applications that may not meet the ordinance standards.2 Daviess County also publishes zoning districts and an official zoning map that identifies incorporated areas and extraterritorial jurisdictions.13
A parcel's district matters because the available materials do not confirm district-specific minimum lot size, minimum dwelling size, setbacks, lot coverage or height limits. Ask Building & Compliance to identify the parcel's zoning district and confirm the dimensional standards in writing. If land will be divided outside a municipality, Indiana requires the proper plat and approval process before lots are sold, with plan-commission control where a subdivision-control ordinance applies.14
How do septic permits work in Daviess County?
The Daviess County Health Department and its Environmental Health Services staff administer residential and commercial onsite sewage permitting.3 A septic application must be made before construction, and installation must be performed by a certified installer under the cited state rules and county septic ordinance.4 The Health Department's published contact is 812-254-8666 at 300 East Hefron Street, Washington, Indiana.15
Only about 4.3% of mapped county soils avoid a “very limited” rating for a conventional septic drain field, so make the soil evaluation an early feasibility item rather than assuming a conventional layout will work.16 For a residence that cannot connect to sewer, Indiana generally requires a compliant septic tank and soil-absorption system; drywells and cesspools are not allowed as onsite sewage treatment.17
Can you live in an RV or tiny home in Daviess County?
Daviess County has zoning, but the available county rules do not confirm residential RV occupancy on a private parcel or a specific tiny-home occupancy standard.2 Ask Building & Compliance whether the proposed use is allowed in the parcel's district and what building, septic, setback and occupancy approvals would apply.
Indiana's campground rules do not answer the private-land question: those rules address regulated campgrounds rather than residential occupancy on an individually deeded lot.18 West Boggs Park permits temporary RV camping under park-specific stay and return limits, but that policy applies only at the county park and does not establish a right to live in an RV elsewhere in Daviess County.19 A tiny home intended as a dwelling still needs a parcel-specific answer from Building & Compliance and a lawful sanitation plan from the Health Department.14
Building a home in Daviess County: what are the steps?
- Call Building & Compliance at 812-444-5798 to identify the zoning district, required zoning review, building application, plans and inspection sequence.8
- Confirm the homesite, minimum dimensions and setbacks with Building & Compliance because parcel-specific dimensional standards are not confirmed in the available county information.2
- If the site will use onsite sewage, apply through the Health Department before construction and use a certified installer.4
- Confirm private-well requirements with the Health Department; Indiana notes that some local health departments require residential-well permits, but the county-specific requirement is unresolved.7
- Obtain permission from the road authority for a driveway connection; INDOT handles state-highway access through its electronic permit system.20
- Ask whether the site is in a floodway because most Indiana floodway development falls under DNR jurisdiction and may also require local or federal approval.21
What should you check before buying land in Daviess County?
Start with zoning, septic feasibility, flood status and legal road access. Daviess County zoning can make the parcel's district decisive, while conventional septic suitability is constrained on much of the mapped soil area.216 The Highway Department handles county roads and rights-of-way outside incorporated areas and state highways, while INDOT permission is required for access to the state highway system.2220
For a private well, ask the Health Department about any local residential permit because the available statewide guidance does not resolve Daviess County's rule.67 The county's effective property-tax rate is about 0.7%, and the median annual property-tax bill is about $1,276, useful context rather than a quote for a particular parcel.2324 Finally, development in an Indiana floodway commonly requires DNR review, while flood-fringe development may still need local permits even without a state permit.2125
Watch-outs
- Do not treat the state agricultural design-release exemption as a Daviess County building-permit or zoning exemption.10
- Apply for a Daviess County septic permit before construction and plan around the site's soil evaluation.416
- Private-land RV living, tiny-home occupancy, setbacks and minimum dwelling size remain parcel-specific questions for Building & Compliance.2
- A driveway onto an Indiana state highway requires permission through INDOT, not merely county road approval.20
Sources
- Daviess County Building & Compliance Department (2026 county census)
- Zoning, quoted and re-checked
- Septic System Information, quoted and re-checked
- Septic System Information, quoted and re-checked
- (2026 county census)
- Water Availability Use/Rights Frequently Asked Questions, quoted and re-checked
- Recommended Standards For Private Water Wells (Indiana statewide rule), quoted and re-checked
- Daviess County Building & Compliance Department (daviess.org)
- Rules of the Indiana Fire Prevention and Building Safety Commission (Indiana statewide rule), quoted and re-checked
- Plan Review FAQs (Indiana statewide rule), quoted and re-checked
- Building Plan Review (Indiana statewide rule), quoted and re-checked
- DHS: Code Enforcement (Indiana statewide rule), quoted and re-checked
- Daviess County Zoning Map, quoted and re-checked
- 2023 County Recorders Resource Library (Indiana statewide rule), quoted and re-checked
- Daviess County Health Department (daviess.org)
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- 410 IAC 6-8.3 Residential On-Site Sewage Systems (Indiana statewide rule), quoted and re-checked
- Environmental Public Health: 410 IAC 6-71 Campgrounds (Indiana statewide rule), quoted and re-checked
- Camping at West Boggs, quoted and re-checked
- INDOT Driveway Permit Guide 2024 (Indiana statewide rule), quoted and re-checked
- Water: Community Assistance & Information (Indiana statewide rule), quoted and re-checked
- Daviess County Highway Department (daviess.org)
- Effective property tax rate: Bolthole Index county data
- Median property tax bill: Bolthole Index county data
- Water: Community Assistance & Information (Indiana statewide rule), quoted and re-checked
Written September 27, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.