Bremer County, Iowa
Sumner is a city in Bremer County, Iowa. Sumner adopts its own zoning, so inside its limits Sumner’s rules apply, not the county’s. Septic permits inside Sumner come from Bremer County. 19 rules below are quoted from official sources and independently re-checked, most recently on November 2, 2026. Rules for unincorporated land are on the Bremer County page.
New construction, remodeling and other building work inside Sumner city limits
“no building or other structure shall be erected within the city without first receiving a building permit therefor.”
Land inside Sumner city limits (Bremer County, Iowa); city zoning under Chapter 165 of the Sumner Code of Ordinances
“165.01 zoning affects every structure. except as hereinafter provided, no building, structure, or land shall be erected, constructed, reconstructed, occupied, moved, altered, or repaired, except in conformity with the regulations herein specified for the class of district in which it”
Zoning districts established for land inside Sumner city limits under Chapter 165
“165.10 agricultural (a-1) district requirements 165.11 residential (r-1) district requirements 165.12 residential (r-2) district requirements 165.13 residential (r-4) district requirements 165.14 highway commercial (c-1) district requirements 165.15 highway commercial (c-2) district requirements 165.16 commercial/industrial (c-3) district requirements 165.17 light industrial (m-1) district requirements 165.18 heavy industrial (m-2) district requirements”
Single-family dwellings in the residential (R-1) district inside Sumner city limits
minimum dwelling width: >= 22 feet
“minimum dwelling width - 22 feet minimum width and attached to a”
“minimum dwelling width - 22 feet minimum width and attached to permanent”
Single-family dwelling lots in the residential (R-1) district inside Sumner city limits
minimum lot area (served by public water and sewer): >= 9000 square feet (where lot is not served by public water and/or sanitary sewer) · minimum lot width: >= 75 feet (where lot is not served by public water and/or sanitary sewer) · minimum lot depth: >= 120 feet · minimum lot area (not served by public water and/or sewer): >= 20000 square feet
“a. single-family dwelling: area 9,000 square feet width 75 feet depth 120 feet where a lot is not served by a public water and/or sanitary sewer system, the minimum lot area shall not be less than 20,000 square feet, and the width not less than 125 feet.”
“2. minimum lot area, width and depth. for dwellings, minimum area must be 20,000 square feet and width must be 125 feet.”
Dwellings in the agricultural (A-1) district inside Sumner city limits (district header inferred from section order)
front yard: >= 30 feet · rear yard: >= 30 feet · side yard: >= 10 feet · street-side yard, corner lot: >= 25 feet
“a. dwellings and non-institutional buildings: front 30 feet rear 30 feet side 10 feet side street, corner lot 25 feet”
“a. dwellings and non-institutional buildings: front 30 feet rear 30 feet side (1 story) 8 feet side street, corner lot 20 feet”
Structures in the agricultural (A-1) district inside Sumner city limits (district header inferred from section order)
maximum height: <= 35 feet (code also states 3 stories)
“4. maximum height and minimum dwelling width. a. maximum height - 3 stories or 35 feet. b. minimum dwelling width - 22 feet minimum width and attached to permanent”
“4. maximum height and minimum dwelling width. a. height - 3 stories or 35 feet. b. minimum dwelling width - 22 feet minimum width and attached to a”
Manufactured or mobile homes outside a manufactured home community or mobile home park inside Sumner city limits
“a mobile home or manufactured home that is located outside a manufactured home community or mobile home park shall be converted to real estate by being placed on a permanent foundation and shall be assessed for real estate taxes except in the following cases:”
Private on-site sewage disposal on land inside Sumner city limits
“when a public sanitary sewer is not available under the provisions of section 95.06, every building wherein persons reside, congregate or are employed shall be provided with an approved on-site wastewater treatment and disposal system”
A home inside Sumner city limits where a public sanitary sewer becomes available
“at such time as a public sewer becomes available to a property served by an on-site wastewater treatment and disposal system, as provided in section 95.06, a direct connection shall be made to the public sewer in compliance with these sanitary sewer chapters”
Subdivision of land inside Sumner city limits under Chapter 170 Subdivision Regulations
“46. "final plat" means the map or drawing on which the subdivision plan is presented in the form which, if approved by the council and commission, will be filed and recorded with the county recorder.”
Building permit fees for accessory structures inside Sumner city limits under Chapter 147
carport permit fee: 15 USD (flat fee) · storage shed permit fee: 20 USD (flat fee) · sign permit fee: 20 USD (flat fee)
“permit fee schedule. carport $15.00 flat permit fee storage shed (metal & wood) $20.00 flat permit fee sign permit $20.00 flat permit fee”
Building permit application process for construction inside Sumner city limits
“if you are building a new home or remodeling, you need to get a building permit application from city hall.”
Sumner does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.
On-site wastewater (septic) systems on land inside Sumner city limits where no public sanitary sewer is available; administered by the county board of health under Iowa rules
“shall comply with the specifications and requirements set forth by the iowa administrative code 567, chapter 69, and with such additional requirements as are prescribed by the regulations of the county board of health.”
Installing or altering an on-site wastewater system on land inside Sumner city limits where no public sewer is available
“no person shall install or alter an on-site wastewater treatment and disposal system without first obtaining a permit from the county board of health.”
We looked and could not find an official answer yet. Silence is not permission; ask Sumner or Bremer County directly.
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 Sumner publishes no rule on the point, not that none exists. Bremer County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Sumner means bringing your own water and power. The kit we’d start with:
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