Lakeville Wood Flooring has handled wood-flooring in New Prague for more than 20 years, and the question that comes up here more often than anywhere else we work is not which species to lay down but which office has to be satisfied before the subfloor under it is opened. It is a fair question, and the answer is simpler than the paperwork around a house here suggests. One authority reviews the work inside the house, and it is the same one at every address in town.

What we bring to that conversation is a first visit that is a measurement visit rather than a sales call. We take a relative humidity reading in the house and write it on the quote with the 30 to 50 percent band wood flooring is specified for printed beside it, so the number the floor has to live in is on the page before anything is ordered. Moisture content of the flooring and of the subfloor are measured against each other, and both numbers are recorded, before the first board goes down.

The rest of the quote is written the same way: a grit sequence and finish schedule you can hold us to, a board width chosen against the species’ own dimensional change coefficient with the seasonal movement to expect at that width stated in writing, and cure times and return-to-service dates given as commitments rather than estimates. None of that changes with the address, and neither does the code the work is held to.

One address, two counties, and what the line actually divides

Worker reading the end grain of a sawn offcut from the original oak floor of a New Prague house near Main Street.

New Prague is a single municipal corporation sitting in two counties. North of Main Street, which carries Highway 13 and Highway 19, an address is in Scott County; south of it, an address is in Le Sueur County. The city’s own council proceedings are captioned State of Minnesota, Counties of Scott and Le Sueur, City of New Prague, which is about as plain a statement of the arrangement as anyone will find.

That line is real and it does real work. Which county records the deed, assesses the property and collects the tax follows from it, and so does the courthouse a title search runs through. None of that touches the floor.

Plat records, parcel numbers and the assessor’s valuation all sit on the county side of that line, which is why two neighbors across the street from one another can be looking at different county websites for the same kind of document. It is a recording question, not a construction one.

What the line does not divide is who administers the building code inside the house, and that is the part homeowners here get wrong most often. The city administers the code on both sides of Main Street, through one office, under one set of rules. No county steps in on one half of town and stops at the other.

Footing depth does not change at the line

The most common version of the mix-up we hear is that one half of town is held to a deeper frost line than the other. It is not. Minnesota Rules 1303.1600 places Scott County and Le Sueur County both in Zone II, where the minimum allowable footing depth due to freezing is three and one-half feet, and neither is in Zone I, the five-foot zone.

For a wood floor that matters in one practical way. A foundation poured to the same minimum depth on either side sits the same way against seasonal ground moisture, so when we read a lower-level slab we are not making an allowance for which county the house pays tax to. The reading is the reading.

The schedule comes out the same way as well. Whichever half a house sits in, the work is sequenced around the same permit office, the same inspection where one is called for, and the same moisture numbers we took on the first visit.

Looking for wood-flooring closer to Newport? See Wood-Flooring in Newport.

One city, one building official, one permit portal

Minnesota Statutes 326B.133, subdivision 1 requires each municipality to designate a building official to administer the code, and subdivision 4 makes that official responsible, in the municipality for which they are designated, for all aspects of code administration for which they are certified. The statute contemplates two or more municipalities combining to designate one official between them. It does not contemplate a county administering inside an incorporated city.

New Prague names its own. Scott Sasse is the city’s Building Official and Brian Petersen is the Building Inspector, and permits are applied for through the city’s Community Connect online portal. The city’s permit page lists building, plumbing, HVAC, sign and demolition applications along with handouts for decks, additions, basement finishes and reroofs, and it names neither county and states no county-based limit on its permitting.

Timing is worth knowing before a remodel schedule is set. The city’s own guidance is that new home construction permits typically take up to ten days from submission to issuance, and that is the outer figure we plan structural and lower-level work around rather than assuming a same-week turnaround.

When a wood floor needs a permit and when it does not

Most of what a flooring contractor does is exempt. Minnesota Rules 1300.0120, subpart 4, item A, sub-item (8) exempts finish work of that kind from building permit, and the exemption does not authorize work in violation of the code or any other ordinance. Laying, sanding and finishing a floor over sound structure sits inside that exemption.

Subpart 1 of the same part still reaches structural work, and that is where floor jobs cross the line. Sistering a joist, replacing a run of subfloor that has failed under a leak, cutting a new opening or changing how a load travels is structural rather than finish, and it belongs in front of the city’s building official before it starts.

We raise that at the measurement visit rather than after the old floor is up and the crew is already on site. A hollow spot underfoot, a squeak that moves along a joist line or telegraphing through an existing floor can turn out to be a fastener problem we fix in an afternoon, or a framing problem that changes the job. Which one it is decides whether anything needs the city at all, and we would rather know on day one.

Lower levels, attached units and what the slab says

A meaningful share of the housing here is not detached. Of 3,152 housing units, 659 are one-unit attached, the townhome and twin-home form, alongside 2,042 one-unit detached. Attached units are where lower-level and slab questions come up first, because the finished level below the entry is often the room somebody wants wood in.

Grade is established the way the installation guidelines define it, not by what a floor plan calls the room. Soil sitting within three inches of a floor puts that level below grade, so a walkout or a lookout is quoted as what it is rather than as a main floor with a view. That one determination changes the product, the adhesive and the moisture protection under it.

We quote lower-level work from a moisture reading taken on the lower-level slab itself, never inferred from the floor above it. An in-situ relative humidity test to ASTM F2170 reports what the slab is actually holding at depth, which a pinless meter passed over the surface cannot. Cupping over a slab that was never read is the most expensive avoidable failure in this trade.

Radon systems and what sits under a slab

New residential construction statewide is built over a passive soil-gas system. Minnesota Rules 1303.2400 to 1303.2403 require gas-permeable material on the prepared subgrade under all floor systems and a soil-gas membrane placed on top of it before the floor is placed.

The detail matters to us because it is a vapor story as much as a soil-gas one. Sections are lapped at least twelve inches and fitted closely around penetrations, and a soil-gas membrane is 6-mil polyethylene or 3-mil cross-laminated polyethylene. A lower level built with that assembly under it starts from a different moisture position than one poured without it, and knowing which we are standing on changes what we will put down and what vapor retarder goes over it.

Where an engineered floor is already down, we measure the wear layer before quoting a sand. Under the sanding threshold the honest answer is replacement rather than a refinish, and saying so at the quote costs less than finding it at the first cut, where sand-through shows as a pale streak nobody can put back.

Two forecast zones over one town, and what that is not

The county split shows up in one more place, and it is worth naming because it looks like more than it is. Two independent point queries to the National Weather Service return different zones for the two halves of town: a point north of Main Street comes back with county zone MNC139 and public forecast zone MNZ069, and a point south of it comes back with MNC079 and MNZ076. Both points return the same grid office and the same relative location, New Prague.

That is a forecast zone assignment, not a measurement. It says which polygon a forecast is issued for, and no station record stands behind it as a comparison between the two halves of town; reading a map boundary as data would be a mistake. We mention it because customers find it and ask what it means for a floor, and the answer is nothing.

What actually governs a floor here

The condition a wood floor answers to is the inside of the house. Wood flooring is specified for a 30 to 50 percent relative humidity band, and on a deep cold snap the humidity a house can safely hold sits below the bottom of that band, because pushing it higher drives moisture to the coldest surfaces in the building instead.

We explain that conflict before the work is booked rather than after the gaps appear. Seasonal gapping in February, at a width and species chosen together with the expected movement written down, is normal behavior, and a floor that closes back up by July was not defective in winter. The failures worth engineering against are the ones that do not reverse: cupping over a slab holding more than it should, compression set in a floor laid too tight, buckling.

So the practical shape of a job in this town is three separate answers. The county on the deed decides where the paperwork is filed, the city decides what the work has to meet on both sides of Main Street, and the moisture numbers decide what we are willing to install. Two of those are settled before we arrive; the third is what the first visit is for, and it goes on the quote in writing.