Dyersville, IA Zoning, Building Permits & Septic Rules

Dyersville, Iowa (Dubuque County) zones land inside city limits under Chapter 165 of its city code¹. The City lists a Building Permit application at City Hall, 340 1st Avenue E². We could not confirm the city's septic, well or RV rules, so call City Hall at 563-875-7724². Outside city limits, Dubuque County's rules apply instead³.

At a glance

Zoning: Yes, city zoning ordinance (Chapter 165) inside Dyersville¹
Building permit: City lists a Building Permit application; requirements to confirm with City Hall²
Smallest lots: R-1: 7,200 sq ft; A-2: 1 acre; A-1: 10 acres⁴⁵⁶
Septic: Not confirmed inside city limits; Dubuque County Health Department handles unincorporated land⁷
RV living / tiny homes: Not confirmed; ask City Hall²
Floodplain: City offers a Flood Plain Development Application²

Who to call

Building permits

City of Dyersville (City Hall)

Building, fence, excavation, flood plain development and planning and zoning applications inside Dyersville

563-875-7724

340 1st Avenue E Dyersville, IA 52040

Septic permits

Dubuque County Health Department

Septic and well permits for unincorporated Dubuque County; contact first to confirm what applies inside Dyersville

563-557-7396

1225 Seippel Rd., Dubuque, IA 52002

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 Dyersville means bringing your own water and power. The kit we’d start with:

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Does Dyersville, Iowa have zoning?

Yes. Dyersville's zoning ordinance applies throughout the city except where the ordinance lists an exclusion¹. The districts we confirmed are A-1 Rural Restricted, A-2 Rural Residential and R-1 Single-Family Residential; other districts in the ordinance were not reviewed⁸.

Minimum lot sizes depend on the district. R-1 requires 7,200 square feet and 60 feet of width for a detached house⁴. A-2 requires 1 acre, or 2 acres with on-site utilities⁵. A-1 requires 10 acres for a one-family unit and 200 feet of width⁶.

The Planning & Zoning Commission meets monthly at City Hall; rezoning and variance requests start with the Planning & Zoning Application and Board of Adjustment forms².

What are the setbacks and height limits in Dyersville?

Setbacks differ by district. In A-1, a one-family unit needs a 50-foot front yard, 15-foot side yard and 50-foot rear yard⁹. In A-2, the front yard is 40 feet and the side yard 15 feet¹⁰. Accessory structures follow separate rules in Section 165.09, which we did not review⁹.

Height in A-2 is capped at 35 feet¹¹. In R-1, a principal building may reach 2.5 stories¹². Building coverage in R-1 is capped at 30 percent¹³; A-1 lists no coverage cap¹⁴.

Do you need a building permit in Dyersville, and who issues it?

Dyersville City Hall publishes a Building Permit application, along with excavation, fence, flood plain development and moving-structure applications². We could not confirm the building code Dyersville enforces, its fees, inspections or occupancy rules, so ask City Hall before you buy or break ground, at 563-875-7724².

Iowa leaves permit issuance to local governments¹⁵. Iowa's owner-builder exemption covers contractor registration only and is not stated to waive permits or inspections¹⁶.

How do septic permits and wells work in Dyersville?

We could not confirm whether the city or the county handles septic permits and wells for a lot inside Dyersville. Dyersville's code has an On-Site Wastewater chapter we did not read, and a public sewer connection may be required where service is available. Call City Hall and the Dubuque County Health Department before you plan a septic system²¹⁷.

Outside city limits, in unincorporated Dubuque County, the Health Department issues septic and well permits at $250 each¹⁸¹⁹.

What stays with Dubuque County, and what should you check before buying?

Land outside Dyersville is governed by Dubuque County, not the city. Unincorporated Dubuque County requires a Zoning Certificate for new buildings²⁰. See the Dubuque County page for those rules.

County-level figures: the effective property tax rate is 1.3%²¹, and the typical home value is $282,563²². Confirm RV or tiny-home use, floodplain status and utility hookup with City Hall first².

Watch-outs

We could not confirm Dyersville's building code, permit fees, inspection rules, RV or tiny-home rules, or septic rules inside city limits; call City Hall at 563-875-7724².
The county's septic and Zoning Certificate rules are for unincorporated land and may not apply inside city limits³.

Sources

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.

Answers from the rulebook for Dyersville

Dyersville’s own rules

Local zoningPresent (with conditions)
Land inside Dyersville city limits, governed by the city zoning ordinance (Code Chapter 165, Zoning Regulations)
- Zoning ordinance applies within the city except where explicitly listed as excluded in the ordinance.
- Use permissions and district limits must be checked in Chapter 165 for each parcel's district.
“city of dyersville except where explicitly listed as excluded in this zoning ordinance.”
Dyersville Code Chapter 165.06 Site Development Regulations (American Legal Publishing) ↗Re-checked Oct 23, 2026
Zoning districtsPublished (with conditions)
Zoning districts inside Dyersville city, including A-1 Rural Restricted, A-2 Rural Residential and R-1 Single-Family Residential
- Only the districts whose site tables were opened (A-1, A-2, R-1) are confirmed; other districts in Chapter 165.05 were not opened.
“the r-1 district is intended to provide for low-density residential neighborhoods, characterized by single-family dwellings with supporting community facilities and urban services.”
Dyersville Code Chapter 165.06 Site Development Regulations (American Legal Publishing) ↗Re-checked Oct 23, 2026
Minimum lot sizeSpecified
A-1 Rural Restricted district inside Dyersville city; one-family units versus other permitted uses as shown
- The A-1 district provides for and preserves the agricultural and rural use of land.
minimum lot area, one-family units: >= 10 acres · minimum lot area, other permitted uses: >= 20 acres · minimum lot width: >= 200 feet
“minimum lot area 10 acres 20 acres minimum lot width (feet) 200 feet 200 feet”
Dyersville Code Chapter 165.06 Site Development Regulations (American Legal Publishing) ↗Re-checked Oct 23, 2026
2 more reviewed findings on this topic
- Specified — R-1 Single-Family Residential district inside Dyersville city, single-family detached dwelling
  “minimum lot area 7,200 square feet 7,200 square feet 8,000 square feet 10,000 square feet”
  Dyersville Code Chapter 165.06 Site Development Regulations (American Legal Publishing) ↗Re-checked Oct 23, 2026
- Specified — A-2 Rural Residential district inside Dyersville city; one-family units with and without on-site utilities
  “minimum lot area 1 acre 2 acres n/a minimum lot width (feet) 100 feet 175 feet n/a”
  Dyersville Code Chapter 165.06 Site Development Regulations (American Legal Publishing) ↗Re-checked Oct 23, 2026
SetbacksSpecified
A-1 Rural Restricted district inside Dyersville city; one-family units versus other permitted uses as shown
- Accessory structures and farm buildings are regulated separately in Section 165.09 and were not opened.
front yard: >= 50 feet · side yard: >= 15 feet · street side yard: >= 40 feet · rear yard: >= 50 feet
“minimum yards (feet) front yard 50 feet 50 feet side yard 15 feet 15 feet street side yard 40 feet 40 feet rear yard 50 feet 50 feet”
Dyersville Code Chapter 165.06 Site Development Regulations (American Legal Publishing) ↗Re-checked Oct 23, 2026
One more reviewed finding on this topic
- Specified — A-2 Rural Residential district inside Dyersville city; one-family units with and without on-site utilities
  “minimum yards (feet) front yard 40 feet 40 feet 50 feet side yard 15 feet 15 feet 25 feet street side yard 40 feet 40 feet 50 feet rear yard 50 feet 75 feet 100 feet”
  Dyersville Code Chapter 165.06 Site Development Regulations (American Legal Publishing) ↗Re-checked Oct 23, 2026
Lot coverageSpecified
R-1 Single-Family Residential district inside Dyersville city, single-family detached dwelling
- Impervious surface limit differs by use column in the same table (55% detached; 55% attached; 60% two-family; 55% other uses as captured).
maximum building coverage: <= 30 percent · maximum impervious surface ratio: <= 55 percent (60% for two-family dwelling column)
“maximum building coverage 30% 30% 30% 30% maximum impervious surface ratio 55% 55% 60% 55%”
Dyersville Code Chapter 165.06 Site Development Regulations (American Legal Publishing) ↗Re-checked Oct 23, 2026
2 more reviewed findings on this topic
- None — A-1 Rural Restricted district inside Dyersville city
  “maximum building coverage none none maximum impervious surface ratio none none”
  Dyersville Code Chapter 165.06 Site Development Regulations (American Legal Publishing) ↗Re-checked Oct 23, 2026
- Specified — A-2 Rural Residential district inside Dyersville city; one-family units with and without on-site utilities
  “maximum building coverage 15% 10% 15% maximum impervious surface ratio 25% 25% 25%”
  Dyersville Code Chapter 165.06 Site Development Regulations (American Legal Publishing) ↗Re-checked Oct 23, 2026
Building heightSpecified
R-1 Single-Family Residential district inside Dyersville city
- Accessory structure height is limited to 1.0 story and not taller than the principal building.
maximum height, principal structure: <= 2.5 stories · maximum height, accessory structure: <= 1 story (not taller than the principal building)
“maximum height (principal structure) 2.5 stories 2.5 stories 2.5 stories 2.5 stories maximum height (accessory structure) 1.0 story, not taller than the principal building”
Dyersville Code Chapter 165.06 Site Development Regulations (American Legal Publishing) ↗Re-checked Oct 23, 2026
2 more reviewed findings on this topic
- Specified — A-1 Rural Restricted district inside Dyersville city
  “maximum height (feet) 2.5 stories or 35 feet 35 feet; 50 feet for farm buildings; 100 feet for grain storage structures”
  Dyersville Code Chapter 165.06 Site Development Regulations (American Legal Publishing) ↗Re-checked Oct 23, 2026
- Specified — A-2 Rural Residential district inside Dyersville city; one-family units and other permitted uses
  “maximum height (feet) 35 feet 35 feet 35 feet”
  Dyersville Code Chapter 165.06 Site Development Regulations (American Legal Publishing) ↗Re-checked Oct 23, 2026

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Dyersville or Dubuque County directly.

Building permit — New home construction inside Dyersville city
Owner-builder exemption — Owner-builder exemption inside Dyersville city
Building code adopted — Building code adoption inside Dyersville city
Inspections — Building inspections for new homes inside Dyersville city
Certificate of occupancy — Certificate of occupancy for new homes inside Dyersville city

17 more unanswered

Minimum dwelling size
Living in an RV
Camping on your land
Tiny homes
Manufactured homes
Accessory dwellings
Septic permit
Septic inspection
Off-grid sanitation
Well permit
Mandatory utility hookup
Agricultural exemption
Driveway access
Building in a floodplain
Short-term rentals
Permit fees
Permit process

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Unanswered questions are usually a sign that Dyersville publishes no rule on the point, not that none exists. Dubuque County’s page lists the county offices to call.