Bolthole Index

Scott County, Iowa

Zoning, building permits and septic rules in Davenport, Iowa

Davenport, Iowa adopts and administers its own zoning ordinance (Title 17) for land inside city limits1. The city also adopts its own building codes, the 2021 International Building Code and International Residential Code23. We could not confirm the city's septic rules, so ask Scott County's Health Department, which runs the county's private septic program4.

At a glance

Zoning
City of Davenport zoning ordinance, Title 17, inside city limits1
Building code
2021 International Building Code and International Residential Code, with city amendments23
R-1 minimum lot
20,000 sq ft, 100 ft wide5
R-1 setbacks
30 ft front, 30 ft rear (or less under the stated exceptions)6
R-1 height and coverage
35 ft maximum height, 25% maximum building coverage78
Septic
Scott County runs the private septic program; city-limit rules not confirmed4
Wells
Scott County Health Department permits private wells9

Who to call

Building permits

City of Davenport Development and Neighborhood Services

The city's building and land development, planning and zoning pages

563.326.6198

1200 E 46th St Davenport , IA 52807

Septic permits

Scott County Health Department — Environmental Health Services

Private sewage disposal system and private water well programs for Scott County

563-326-8618

600 W. 4th St. Davenport, IA 52801-1003

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

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Does Davenport, Iowa have zoning, and what does it mean for lot size and setbacks?

Davenport has its own zoning. The city adopts and administers Title 17 for land inside city limits, and every parcel must be used under the district standards in Chapter 17.04 and the use rules of Title 171. Chapter 17.04 sets purpose statements, uses and dimensional standards for the residential districts10.

In the R-1 single-family district, the minimum lot area is 20,000 sq ft5. The front setback is 30 feet or the average of neighboring front setbacks, whichever is less, and the rear setback is 30 feet or 20% of lot depth, whichever is less6. Building coverage in R-1 is capped at 25%8, and building height at 35 feet7. Other residential districts use different numbers in the same table, so confirm the district of your parcel with Development and Neighborhood Services11.

We could not confirm the city's rules on RVs, tiny homes, accessory dwellings or manufactured homes; ask the same office before you plan around any of them.

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

Inside Davenport, the city sets building rules, not Scott County. The city adopts the 2021 International Building Code with local amendments2, and the 2021 International Residential Code governs one- and two-family dwellings3.

We could not confirm the city's building permit application process, fee schedule, inspection steps or owner-builder rules. Call Development and Neighborhood Services at 563.326.619811 before you start work. One published fee is a $75 per-lot construction site erosion control permit for demolition12.

Iowa's own-property contractor exemption removes a homeowner from contractor registration but is not stated to waive building permits, inspections or certificates of occupancy13.

How do septic permits work inside Davenport?

We could not confirm whether private septic systems are allowed inside Davenport city limits, or whether the city requires connection to public sewer. Ask Development and Neighborhood Services11 first.

Scott County, not the city building office, runs the private sewage disposal program for the county: the Health Department reviews soil analysis, sizing and installation of private systems144. Wells are the same: the Health Department regulates private wells in Scott County9. The county requires that no structure intended for human occupancy be occupied until it is connected to an approved sewage disposal system or another method the health officer approves15. Call the Health Department at 563-326-861814.

What stays with Scott County, and what should you check before you buy in Davenport?

The county's own rules apply to unincorporated Scott County, not to land inside Davenport. See the Scott County page for the answers outside city limits.

Scott County's zoning ordinance applies in unincorporated areas and not inside incorporated cities except at a city's option under an agreement16. The county Health Department keeps septic and well permits4.

For cost planning, Scott County's effective property tax rate is 1.5% and the median property tax bill is $3,221 per year1718. Davenport's own levy may differ, so ask the Scott County Assessor or Treasurer for a specific parcel.

Watch-outs

  • We could not confirm Davenport's building permit process, owner-builder rules or certificate of occupancy requirements; call Development and Neighborhood Services at 563.326.619811.
  • Do not apply the county's unincorporated-area rules to a Davenport parcel; the county's zoning ordinance does not apply within incorporated cities except at a city's option under an agreement16.
  • Lot, setback, height and coverage numbers vary by zoning district; the figures here are the R-1 single-family column5.

Sources

  1. Chapter 17.04 Residential Districts - City of Davenport, IA (eCode360) (Davenport), quoted and re-checked
  2. Chapter 15.12 International Building Code and International Residential Code for One- and Two-Family Dwellings - City of Davenport, IA (eCode360) (Davenport), quoted and re-checked
  3. Chapter 15.12 International Building Code and International Residential Code for One- and Two-Family Dwellings - City of Davenport, IA (eCode360) (Davenport), quoted and re-checked
  4. Wells & Septic, quoted and re-checked
  5. Chapter 17.04 Residential Districts - City of Davenport, IA (eCode360) (Davenport), quoted and re-checked
  6. Chapter 17.04 Residential Districts - City of Davenport, IA (eCode360) (Davenport), quoted and re-checked
  7. Chapter 17.04 Residential Districts - City of Davenport, IA (eCode360) (Davenport), quoted and re-checked
  8. Chapter 17.04 Residential Districts - City of Davenport, IA (eCode360) (Davenport), quoted and re-checked
  9. Wells & Septic, quoted and re-checked
  10. Chapter 17.04 Residential Districts - City of Davenport, IA (eCode360) (Davenport), quoted and re-checked
  11. City of Davenport Development and Neighborhood Services (davenportiowa.com)
  12. Chapter 15.12 International Building Code and International Residential Code for One- and Two-Family Dwellings - City of Davenport, IA (eCode360) (Davenport), quoted and re-checked
  13. Iowa Code 2026, Chapter 91C — Construction Contractors (2026 county census)
  14. Scott County Health Department — Environmental Health Services (scottcountyiowa.gov)
  15. Chapter 23 Private Sewage Disposal Systems, quoted and re-checked
  16. Zoning Ordinance & Map (2026 county census)
  17. Effective property tax rate: Bolthole Index county data
  18. Median property tax bill: 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.

Answers from the rulebook for Davenport

Davenport’s own rules

  • Building code adoptedAdopted

    Building construction inside Davenport city limits (city building code, not county or state)

    • Adopted by the city with local deletions and replacements in Chapter 15.12 and Chapter 15.08 (administrative code) and the Iowa Administrative Code.
    • Chapter 33 of the International Building Code is deleted and replaced by city demolition procedures in section 15.12.046.
    • Amended 11-13-2024 by Ord. No. 2024-465.

    International Building Code edition: 2021 edition

    “the international building code, 2021 edition as published by the international code council is hereby adopted by reference as the building code for the city of davenport.”
    One more reviewed finding on this topic
  • Local zoningPresent (with conditions)

    Land inside Davenport city limits covered by the city zoning ordinance (Title 17, Chapter 17.04 residential districts and the other city zoning districts)

    • Davenport city adopts and administers its own zoning ordinance (Title 17 zoning) for land inside city limits.
    • Each parcel must be used under the district standards in Chapter 17.04 and the use rules of Title 17.
    “the r-1 single-family residential zoning district is intended to accommodate the lowest-density single-family neighborhoods within the city of davenport”
  • Zoning districtsPublished

    Residential zoning districts inside Davenport city limits (Chapter 17.04)

    • Chapter 17.04 lists purpose statements, uses, dimensional standards, R-MHP district standards and R-3C/R-4C design standards.
    • The district list and map are on the eCode360 zoning map (da4058-017b zoning map.pdf) and were not opened.
    “17.04.010 purpose statements. 17.04.020 uses. 17.04.030 dimensional standards.”
  • Minimum lot sizeDistrict specific (with conditions)

    R-1 single-family residential district inside Davenport city limits (main single-family district)

    • Table 17.04-1 residential district dimensional standards; this claim is the R-1 column.
    • R-1 minimum lot width is 100 feet per the same table.
    • Other residential districts (R-2, R-3, R-3C, R-4, R-4C, R-MF) have different lot areas in the same table.

    minimum lot area: 20000 sq ft

    “r-1 r-2 r-3 r-3c bulk minimum lot area 20,000 sf”
  • SetbacksDistrict specific (with conditions)

    R-1 single-family residential district inside Davenport city limits (front and rear setbacks)

    • Side setback for R-1 was not captured in the opened text; it is unknown and listed in followups.
    • Front and rear setbacks are the R-1 column of Table 17.04-1.

    minimum front setback: 30 feet (or average of front setbacks, whichever is less) · minimum rear setback: 30 feet (or 20% of lot depth, whichever is less)

    “minimum front setback 30 feet or average of front setbacks, whichever is less”
  • Lot coverageSpecified

    R-1 single-family residential district inside Davenport city limits

    • Maximum building coverage for R-1 per Table 17.04-1; the 35% value for R-2 and R-3 columns is a different district.
    • Maximum impervious surface is a separate row in the same table and was not captured.

    maximum building coverage: <= 25 percent

    “maximum building coverage 25% 35% 35% 35%”
  • Building heightSpecified

    R-1 single-family residential district inside Davenport city limits

    • Table 17.04-1 shows 35 feet for every residential column captured; the R-1 value is the first column.
    • Height measurement method is in section 17.02.040, not opened.

    maximum building height: <= 35 feet

    “maximum building height 35 feet 35 feet 35 feet 35 feet”
  • Permit feesPublished (with conditions)

    Demolition work inside Davenport city limits, for the CoSESCO (construction site erosion and sediment control) demolition permit only

    • Valid for one year, per the same section.
    • Only this single fee was captured; the general building permit fee schedule was not located in the opened code text.

    CoSESCO demolition permit fee: 75 USD per lot

    “the fee for a cosesco demolition permit is $75 per lot and is valid for one year.”

Still unanswered

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

  • Building permit — New construction inside Davenport city limits
  • Owner-builder exemption — Owner-builder permits for owner-occupied homes inside Davenport city limits
  • Inspections — Building inspections inside Davenport city limits
  • Certificate of occupancy — Certificates of occupancy for new homes inside Davenport city limits
  • Minimum dwelling size — Minimum dwelling floor area inside Davenport city limits
15 more unanswered
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Subdividing land
  • Short-term rentals
  • 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 Davenport publishes no rule on the point, not that none exists. Scott County’s page lists the county offices to call.

← All of Scott County: county rules, score and offices