--- title: "Knoxville Iowa Construction & Remodeling | Busy Builders" description: "Busy Builders builds and remodels in Knoxville, Iowa, from the 50 percent plan review fee to the 90 day permit clock. Call us today at 844-435-9800." url: "https://busybuildersiowa.com/knoxville/" --- # Knoxville, Iowa ## Construction & Remodeling Your One Call Solution for Home Building and Remodeling in Knoxville, Iowa. [Plan Your Knoxville Project](https://busybuildersiowa.com/contact-us/) 1285+ Completed Projects​ ## Knoxville, Iowa General Contractor ### About Us Established in 2020, Busy Builders was founded to bring integrity and honesty back to remodeling and homebuilding. We serve Knoxville and all of Marion County, from small bathroom updates to complete custom home builds. This small rural community deserves contractors who deliver quality work and honest service, even for projects in towns where some contractors won’t travel. ### Our Mission Provide the most transparent and honest experience possible for any construction project. Knoxville homeowners deserve contractors who show up when promised, communicate clearly, and deliver quality work at fair prices. ### Our Vision To serve all of Central Iowa with dedicated construction services, from West Des Moines through Marion County and beyond. [Request your free quote](https://busybuildersiowa.com/contact-us/) ## Full-Service Construction And Remodeling in Knoxville ### [Home Building](https://busybuildersiowa.com/home-building/) Building a new home in Knoxville means budgeting for plan review on top of the permit. Plan review runs 50 percent of the building permit fee on new residential work. The permit fee itself comes off a project valuation table. Your submittal needs a site plan showing setbacks and easements, an erosion and sediment control acknowledgment, and a Residential Energy Code Worksheet. Home building starts at $150 per square foot, and final costs vary by scope, materials and complexity. A home remodel in Knoxville starts with timing. The permit expires if work has not begun within 90 days, so we pull it when the crew is ready. The median Knoxville home dates to about 1971, so we expect surprises behind the plaster and price from what we find. Veenstra & Kimm serves as the third party Building Official and wants 24 hours notice for every inspection. We schedule around that instead of running into it. ### [Home Remodeling](https://busybuildersiowa.com/home-remodeling/) ### [Kitchen remodeling](https://busybuildersiowa.com/kitchen-remodeling/) A kitchen remodel in Knoxville needs separate electrical and plumbing permits, and the city issues those per address. Starting work before the permit issues carries a $100 non-issuance fee, which is an easy fine to avoid. Iowa licenses the electricians and plumbers who do the rough-in. Knoxville publishes the 2012 IECC as its energy code but names no residential edition, so we confirm the standard first. Kitchen remodeling starts at $250 per square foot, and final costs vary. Remodeling a basement in Knoxville usually means fixing what a 1971 house got wrong. Ceiling height under 7 feet rules out habitable space. A bedroom with no compliant egress is not a bedroom. Stairs built to an older standard often have the wrong rise. We tell you which of those must change and which you simply want to change. Water gets solved first, before anything goes on a wall. Framing over a damp wall only hides it. ### [Basement Remodeling](https://busybuildersiowa.com/basement-remodeling/) ### [Bathroom Remodeling](https://busybuildersiowa.com/bathroom-remodeling/) A bathroom remodel in Knoxville needs its own plumbing permit, filed per address. The third party Building Official inspects the rough-in and wants 24 hours notice, so we book inspections into the schedule rather than around them. Iowa licenses the plumbers doing the work. Starting before the permit issues carries a $100 non-issuance fee. We mark clearances on the floor before we order anything, because a vanity that clears on paper can still block the door. An addition in Knoxville pulls in the full submittal package. The city wants a site plan showing setbacks and easements, an erosion and sediment control acknowledgment, and a Residential Energy Code Worksheet. Plan review adds 50 percent of the permit fee on new residential work. New footings go below 42 inches, the Iowa frost line. We build additional stories, sunrooms, garages, ADUs and tornado shelters. Additions start at $300 per square foot, and final costs vary. ### [Home Additions](https://busybuildersiowa.com/home-additions/) ### [Basement Finishing](https://busybuildersiowa.com/basement-finishing/) Basement finishing in Knoxville, IA. Veenstra & Kimm serves as the city’s third party building official under a 2024 services agreement, and inspections take 24 hours notice. We book around that clock so framing never sits waiting. The application goes to 305 S Third Street, and each address needs its own electrical and plumbing permits. Starting before the permit issues carries a $100 non-issuance fee, and a permit lapses if work has not begun within 90 days. A deck in Knoxville needs a site plan showing setbacks and easements, plus an erosion and sediment control acknowledgment. Watch the 90 day clock. If work has not begun within 90 days the permit expires, and a deck is exactly the project that waits on weather. Footings go below 42 inches, the Iowa frost line. We size footings for the span, flash the ledger properly, and build guard height and stair rise to code. ### [Deck Building](https://busybuildersiowa.com/deck-building/) [Plan Your Knoxville Project](https://busybuildersiowa.com/contact-us/) ## Building in Knoxville and Marion County Two Knoxville rules change how you budget and how you schedule. Plan review runs 50 percent of the building permit fee on new residential work, so review adds half again on top of the permit. And a Knoxville permit expires if work has not begun within 90 days. Pull it too early and you pay for it twice. The submittal list is specific too. Knoxville wants a site plan showing setbacks and easements, an erosion and sediment control acknowledgment, and a Residential Energy Code Worksheet. Separate electrical and plumbing permits are required for each address. Starting work without a permit carries a $100 non-issuance fee. Sewer taps run $225 per connection with a $100 inspection, and a sidewalk or driveway permit is $30. Permits go through the City of Knoxville at 305 S Third Street, 641-828-0550. Planning and Zoning Administrator Nathan Parch handles them, and processing takes three to five business days or longer. Veenstra & Kimm serves as the third party Building Official under a 2024 services agreement, at 515-850-2980. Inspections need 24 hours notice. The city publishes its energy code as the 2012 IECC but names no adopted residential code edition, so ask before you draw. Call us at 844-435-9800. Permit rules and fees change, so confirm them with the city before you commit to a budget. ## Our Building Partners. - Achievement ## Your Dream, Our Passion. Since 2020, more than 1,285 Central Iowa homeowners have trusted us with their projects, and it shows. 1285+ Completed Projects​ 90+ Skilled Workers​ 99% Satisfaction Rate​ ## Quality Construction at the Right Price. ### Additions Based on Average Pricing in Knoxville. Starting From $ 300 Per sqft. Features - Additional Story - Tornado Shelter - Living Room - Bedroom - Sunroom - Bathroom - Garage - ADU [Plan Your Home Addition](https://busybuildersiowa.com/home-additions/) ### Kitchen Remodeling Based on Average Pricing in Knoxville. Starting From $ 250 Per sqft. Features - Countertops - Appliances - Cabinetry - Windows - Islands - Lights [Build your dream kitchen](https://busybuildersiowa.com/kitchen-remodeling/) ### Home Building Based on Average Pricing in Knoxville. Starting From $ 150 per sqft. Features - Dream Build - Multi-Family - Tiny Home - Spec Build [Plan Your New Home](https://busybuildersiowa.com/home-building/) - Frequently Asked Questions ## FAQs About Home Construction & Remodeling in Knoxville, IA Why does a Knoxville permit cost more than the fee table shows? Because plan review is billed on top of it. Knoxville charges plan review at 50 percent of the building permit fee for new residential, commercial and multifamily work. The building permit fee itself comes off a project valuation table. So a job with a $400 permit carries another $200 in review. Budget both numbers at the start rather than finding the second one late. How long is a Knoxville building permit good for? A Knoxville permit expires if work has not begun within 90 days. That is a shorter leash than most Central Iowa cities give. It catches homeowners who pull a permit while they are still lining up financing. We time the application to the start date instead of the drawing date. Call the city at 641-828-0550 if your schedule slips. What does Knoxville want in a residential permit submittal? Three documents beyond the application. A site plan showing setbacks and easements. An erosion and sediment control acknowledgment. And a Residential Energy Code Worksheet. Separate electrical and plumbing permits are required for each address, so those are additional filings. Getting all of it in at once is the difference between a three day turnaround and a much longer one. Who inspects construction in Knoxville? Veenstra & Kimm serves as the third party Building Official for Knoxville under a 2024 services agreement. You reach them at 515-850-2980, and inspections need 24 hours notice. Planning and Zoning Administrator Nathan Parch handles the permit side at 641-828-0550. Knowing which office answers which question saves days on a small job. Which building code does Knoxville enforce? The city does not publish an adopted residential or building code edition. It does publish its energy code as the 2012 IECC, and the Residential Energy Code Worksheet ties back to that. Because the edition is not stated, we confirm the standard with the city before design rather than guessing. Ask the same question before anyone quotes your job. What happens if I start work in Knoxville without a permit? The city charges a $100 non-issuance fee for work done without a permit. That is on top of the permit fee and the plan review fee you still owe. The bigger cost is usually schedule. Work already covered up may have to be opened again for inspection. It is a cheap fine that buys an expensive delay. - Our Articles ## Home Building & Remodeling Blogs for Knoxville, IA [Read our blog](https://busybuildersiowa.com/blog/) [Aug 23, 2026By Blake Daniels ### Home Addition Cost in State Center, Iowa: 2026 Guide Read More Home additions in State Center start at $300 per square foot. Cost by type, Iowa frost line requirements, and how small-city inspection works.](https://busybuildersiowa.com/home-addition-cost-state-center-iowa-2026/)[Aug 22, 2026By Blake Daniels ### Whole Home Remodel Cost in Ankeny: 2026 Planning Guide Read More Whole home remodels in Ankeny run $85,000 to $300,000+. Cost by level, the city's permit portal, and why doing it all at once costs less per room.](https://busybuildersiowa.com/whole-home-remodel-cost-ankeny-2026/)[Aug 21, 2026By Blake Daniels ### Basement Finishing Cost in New Virginia, Iowa: 2026 Guide Read More Most New Virginia basement projects run $29,000 to $74,000. Cost by scope, Iowa egress rules, and why septic sizing matters if you add a bedroom.](https://busybuildersiowa.com/basement-finishing-cost-new-virginia-iowa-2026/) ```json {"@context":"https:\/\/schema.org","@graph":[{"@type":"BreadcrumbList","@id":"https:\/\/busybuildersiowa.com\/knoxville\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":"1","item":{"@id":"https:\/\/busybuildersiowa.com","name":"Home"}},{"@type":"ListItem","position":"2","item":{"@id":"https:\/\/busybuildersiowa.com\/knoxville\/","name":"Knoxville Iowa Construction & Remodeling"}}]}]} ```