The Village of Davis, Illinois requires a permit for new building construction and for water and sewer hookups, and the village's own Building Permits and Inspections Department handles it12. The village has its own zoning ordinance reviewed by its Zoning Board3. Septic permits and well permits for Davis addresses come from the Stephenson County Health Department4.
At a glance
- Building permit
- Required for new building construction inside the village1
- Who issues it
- Village of Davis Building Permits and Inspections Department5
- Zoning
- Village zoning ordinance exists; the text and district tables are not posted online3
- Septic
- Stephenson County Health Department4
- RV living
- Only with village board permission; trailer camps are banned67
- Manufactured homes
- Allowed with conditions, including a minimum width of 24 feet8
- Wells
- County well permit where public water is not available9
Who to call
Building permits
Village of Davis Building Permits & Inspections
Building permits and construction inspections inside Davis village limits
104 E. McKimmey, Davis, IL 61019
Zoning
Zoning amendments, site plans and plat applications inside Davis village limits
104 E. McKimmey, Davis, IL 61019
Septic permits
Stephenson County Health Department Environmental Office
Septic system and well permits and inspections for Stephenson County, including Davis
50 W Douglas Ave, Ste 902 Freeport IL 61032
Contact details are copied from each office’s official page and were checked against it on October 24, 2026.
Off-grid gear
Going off-grid in Village of Davis means bringing your own water and power. The kit we’d start with:
- Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
- Power Bluetti Solar generators and home battery backup for living off the grid.
- Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
- Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.
These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.
Do you need a building permit in the Village of Davis, Illinois?
Yes. The Village of Davis lists new building construction and water and sewer hookups among the projects that require a village permit1. The Village of Davis Building Permits and Inspections Department permits construction inside village limits and inspects construction-related permits52. Forms are on the village website, or the office will provide them by phone10. We could not confirm permit fees, review steps or timelines, so ask the village office before you plan a budget or schedule.
The state does not issue building permits for privately funded construction; any permit requirement comes from the local government11. Davis's own permit requirement applies inside village limits only; land outside the village falls under Stephenson County, whose rules differ.
Who issues building permits in Davis, and how do you reach them?
The Village of Davis Building Permits and Inspections Department issues building permits and inspects construction inside the village2. The office is at the village hall, 104 E. McKimmey, and the phone is (815) 865-57922. Forms for both residential and commercial permits can be downloaded from the village site or requested by calling10.
The village's zoning questions go to its Zoning Board, which reviews zoning amendments, site plans and plat applications12. The Stephenson County Building and Zoning Department does not handle permits for land inside Davis; the county's own materials direct anyone inside an incorporated village to that village for permit requirements13.
Does Davis have zoning, and what does it mean for RVs, tiny homes and setbacks?
Davis has its own zoning ordinance, and its Zoning Board reviews amendments to it3. The ordinance text and district tables were not available online when we looked, and the village page says more zoning information will be added3. For that reason we could not confirm minimum lot sizes, setbacks, lot coverage, height limits, accessory dwelling rules or whether a tiny home is allowed. Ask the village office at (815) 865-5792 which district a parcel is in before you buy2.
Subdivision and land splits inside the village are also regulated; the Zoning Board reviews plat applications14.
Manufactured housing is allowed under conditions. A unit must be bought new, at least 24 feet wide unless a variance is granted, and set on a permanent foundation8. Plan on no more than two manufactured units within one block unless a variance is granted15.
How do septic permits work inside Davis?
Septic permits and inspections for new or repaired systems in Stephenson County come from the Stephenson County Health Department, not from the village4. Illinois requires plan approval before any new private sewage disposal system is built16. The Health Department's environmental office is reachable at 815-599-034417.
We could not confirm whether the village's own code adds septic rules inside Davis, or how it treats a new system on a lot that has no village sewer, so ask both the village office and the county Environmental Office before relying on a septic system. Village water and sewer hookups require a village permit1.
County soils data suggests that, across Stephenson County, about 42.2% of soils are rated not limited for a conventional drain field, so a site evaluation is still worth requesting18.
Can you live in an RV or tiny home in Davis?
Living in an RV on a lot in Davis is limited. Trailers, including recreational vehicles, may be located in the village only with permission granted by resolution or ordinance of the village board, and residential occupancy of a trailer on private land otherwise needs that permission6. Recreational trailers may be used on private property for preparation or winterization for no more than three days6. Tourist or trailer camps are not permitted inside village limits7.
The village's rules for tiny homes were not found, and a tiny home on a permanent foundation may fall under the zoning ordinance, which we could not read. Call the village office before buying2.
How do you build a home in Davis? The steps, in order
- Call the Village of Davis office at (815) 865-5792 and ask which zoning district the parcel is in and what the zoning ordinance allows there23.
- Ask the village whether it needs a zoning variance for your plan; the village has a zoning variance application form2.
- Download or request the village permit application for new building construction101.
- Contact the Stephenson County Health Department Environmental Office about septic or well permits at 815-599-0344417.
- Start construction only after the permit is issued, and expect inspections by the village department15.
- Water and sewer hookups also require a village permit1.
What stays with Stephenson County, and what should you check before buying in Davis?
Septic and well permits stay with Stephenson County49. The county code also requires a premises with a street, alley or easement that has a public water system to connect to it when the premises are within 200 feet and connection is practical19. The county exempts some residential activities when Illinois well and drinking water conditions are met, and the health administrator decides that19.
For land outside village limits, see the Stephenson County page; unincorporated rules there do not apply inside Davis. Property taxes are a county-level figure: Stephenson County's effective property tax rate is 2.5%20.
Watch-outs
- We could not confirm Davis's zoning district rules, minimum lot sizes, setbacks or tiny-home rules, because the zoning ordinance text was not available online; ask the village office at (815) 865-5792 before you buy32.
- We could not confirm village building permit fees, review timelines or whether the village has adopted a building code, so ask the Building Permits and Inspections Department10.
- RV living inside Davis needs village board permission, and trailer camps are banned67.
- Septic and well permits come from the Stephenson County Health Department, not the village4.
Sources
- Village of Davis: Frequently Asked Questions (Village of Davis), quoted and re-checked
- Village of Davis Building Permits & Inspections (villageofdavis.com)
- Village of Davis: Planning & Zoning (Village of Davis), quoted and re-checked
- Stephenson County Health Department Programs & Services Directory, quoted and re-checked
- Village of Davis: Building Permits & Inspections (Village of Davis), quoted and re-checked
- Davis, IL Code of Ordinances (American Legal Publishing): Title XV table of contents and Chapter 151 manufactured housing and trailer camps (Village of Davis), quoted and re-checked
- Davis, IL Code of Ordinances (American Legal Publishing): Title XV table of contents and Chapter 151 manufactured housing and trailer camps (Village of Davis), quoted and re-checked
- Davis, IL Code of Ordinances (American Legal Publishing): Title XV table of contents and Chapter 151 manufactured housing and trailer camps (Village of Davis), quoted and re-checked
- Stephenson County, IL Code Chapter 391 Wells (ecode360) (Village of Davis), quoted and re-checked
- Village of Davis: Building Permits & Inspections (Village of Davis), quoted and re-checked
- Illinois Codes FAQ (Illinois statewide rule), quoted and re-checked
- Village of Davis Zoning Board (villageofdavis.com)
- Zoning FAQs, quoted and re-checked
- Davis, IL Code of Ordinances (American Legal Publishing): Title XV table of contents and Chapter 151 manufactured housing and trailer camps (Village of Davis), quoted and re-checked
- Davis, IL Code of Ordinances (American Legal Publishing): Title XV table of contents and Chapter 151 manufactured housing and trailer camps (Village of Davis), quoted and re-checked
- 77 Ill. Adm. Code 905.190 Installation Approval (Illinois statewide rule), quoted and re-checked
- Stephenson County Health Department Environmental Office (stephensoncountyil.gov)
- Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
- Stephenson County, IL Code Chapter 391 Wells (ecode360) (Village of Davis), quoted and re-checked
- Effective property tax rate: Bolthole Index county data
Written October 24, 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.