From January through August 2026, the average single-family home in Monroe County sold for $299,591. That's up 7% from $280,804 over the same months of 2025. Over the same stretch, the average price per square foot rose from $171 to $176, an increase of about 3%. Most of the gap between those two numbers comes from which homes sold: fewer under $200,000 and more over $350,000. That shift tells an entry-level buyer more about this market than any headline average, and it's the gap the City of Monroe rewrote its zoning code to address.
The Average Moved More Than Price Per Square Foot Did
The Realcomp MLS figures in Real Estate One's September 2026 Monroe County housing report split sales into three price tiers. Year-to-date through August 31, price per square foot within each tier barely changed:
| Price tier | Closed sales, YTD 2025 | Closed sales, YTD 2026 | Change | Price per sq ft, YTD 2026 | Change |
|---|---|---|---|---|---|
| Under $200K | 282 | 238 | -16% | $110 | -2% |
| $200K to $350K | 520 | 447 | -14% | $174 | +1% |
| Over $350K | 253 | 305 | +21% | $207 | +1% |
| All price ranges | 1,055 | 990 | -6% | $176 | +3% |
Price per square foot fell 2% in the bottom tier and rose 1% in each of the other two. The county as a whole still averaged 7% higher because the share of sales in each tier moved. Homes over $350,000 accounted for about 24% of closings through August 2025 and close to 31% through August 2026. Homes under $200,000 dropped from about 27% to 24%.
So when a buyer sees a 7% jump in the average, much of it comes from more expensive homes making up a bigger share of sales. In the entry tier, price per square foot went down slightly over the same months.
The Shortage Starts With Listings
The bottom tier is shrinking because fewer of those homes are reaching the market. Through August 2026, sellers listed 317 homes under $200,000 in Monroe County. In the same months of 2025, they listed 408, so supply fell 22%. Pendings in that tier fell 18%, from 308 to 252.
The $200,000 to $350,000 tier lost 14% of its listings, from 628 to 542. Above $350,000, listings rose 6% and pendings jumped 17%.
For a first-time buyer, that's the real constraint. Price per square foot in the entry tier is holding steady, but the number of entry-tier homes to choose from is shrinking. The month-by-month numbers point the same way. In August 2026, the county logged 38 new listings under $200,000, against 57 in July. Resale owners alone can't add homes to that tier. More supply has to come from new construction, and new construction at that price needs smaller land per home.
Monroe Rewrote Its Zoning Around That Gap
On July 7, 2025, Monroe City Council approved a comprehensive update to Chapter 720, the city's zoning code, effective August 1, 2025. In announcing it, the City of Monroe said smaller lot sizes and widths would open the door to "infill development and more affordable housing options." Comparing the 2020 ordinance with the updated August 2025 code shows how far the minimums dropped:
| District | Old minimum lot | Old minimum for newly created lots | New minimum lot | Old minimum unit size | New minimum unit size |
|---|---|---|---|---|---|
| R-1 | 9,100 sq ft, 60 ft wide | 9,100 sq ft, 70 ft wide | 6,000 sq ft, 50 ft wide | 1,200/1,500 sq ft | 800/600 sq ft |
| R-2 | 4,800 sq ft, 50 ft wide | 7,200 sq ft, 60 ft wide | 4,800 sq ft, 40 ft wide | 1,000/1,200 sq ft | 800/600 sq ft |
| R-3 | 4,800 sq ft, 40 ft wide | 6,000 sq ft, 50 ft wide | 4,000 sq ft, 35 ft wide | 1,000/1,200 sq ft | 800/600 sq ft |
The new 800/600 standard means 800 square feet for a one-story home and 600 square feet for the ground floor of a two-story home. A studio or efficiency unit, such as an accessory dwelling unit, can be as small as 400 square feet.
The code also widened the types of housing allowed in each district:
- R-1: attached and detached accessory dwelling units are permitted by right. Duplexes need a special use permit.
- R-2: ADUs, townhouses and duplexes are permitted by right. Cottage courts and quadplexes need a special use permit.
- R-3: ADUs, townhouses, duplexes, triplexes and quadplexes are permitted by right. Cottage courts need a special use permit.
Each of these changes targets land cost per home. Halving a lot's width doesn't make the house cheaper to build, but it splits the cost of the land, street frontage and utility runs across more homes.
What a 40-Foot Lot Looks Like on LaPlaisance Road
The first single-family project to show what this looks like sits at LaPlaisance Road and Kentucky Avenue. The Monroe News reported in November 2025 that Clearmont Builders, based in the Sterling Heights area, plans 13 single-family homes there: nine facing LaPlaisance and four facing Kentucky. Patrick Lewis, Monroe's director of engineering and public services, described them to the paper as nearly 2,000 square feet on two levels. According to the floor plans described in that article, each home has a nook, a kitchen with an island, a great room, a laundry room and a half bath on the main floor. Upstairs are three bedrooms, two baths and a walk-in closet, plus there's a patio, a two-car attached garage and a brick-and-siding facade.
"The lots themselves are narrow, roughly 40 feet," Lewis told the Monroe News. Under the pre-2025 code, no newly created lot in R-1, R-2 or R-3 could have been that narrow. The minimums were 70, 60 and 50 feet. That explains the design. On a narrow lot, a family-sized home goes up to two stories instead of spreading out as a ranch. At the time of that report, Great Lakes Excavating of the Temperance area was set to install utilities through most of December 2025. Lewis said building was likely to begin "in the spring" with the model unit, with exact timing dependent on sales. No prices have been published.
A second project farther up the same corridor uses a different approach to the same problem. Habitat for Humanity of Monroe County announced Project Double Impact in June 2025. It's an eight-building, 16-unit duplex development planned on the easterly 3.25 acres of Navarre Field, reached by a new private road off LaPlaisance Road. According to Habitat Monroe's announcement, each building pairs an owner-occupied home with a smaller attached rental unit, and the rent goes toward the homeowner's mortgage. The units come in efficiency, two-bedroom and three-bedroom models, aimed at households below 80% of area median income. The Monroe News reported that Habitat bought the land from Monroe Public Schools and that Navarre Field will still host sports games.
Together, the two projects show both tools in the new code. Narrow lots make room for more single-family homes, and two-unit buildings let rent from the second unit help pay for ownership.
Most of the Rest of Monroe's Pipeline Is Rentals
The Monroe News reported on June 9, 2026 that the city has 286 additional residential units planned and 30 completed since 2024. Mayor Robert Clark called affordable and attainable housing a city priority. Two of the named projects are rentals:
- At 75 Scott St., the former central fire station, Woda Cooper Development Inc. and Community Reimagined LLC plan 42 one- and two-bedroom rental units. The project received a $1.65 million federal low-income housing tax credit in June 2026, according to the Monroe News.
- At 111 E. Front St., a vacant building backed by a $250,000 Michigan Economic Development Corporation grant is set to become commercial space on the first floor with two residential units on the second, according to the Monroe News. WTOL reported the $250,000 grant and that the project pairs the two apartments with a new restaurant, Rebel Pizza and Brews.
These projects add places to live, but they don't directly add homes for sale in the under-$200,000 resale tier. A buyer who needs that tier this winter is still shopping mostly among existing homes, where listings fell 22% through August 2026. The new homes for sale coming through the zoning changes are measured in dozens, and their timing depends on sales.
Reading a Monroe Price Tag With This in Mind
For a buyer comparing Monroe with the rest of the county, a few practical points follow from the data:
- Compare price per square foot within your own tier. In the under-$200,000 tier, price per square foot averaged $110 through August 2026, down 2%. The county-wide average of $176 is pulled up by a growing share of homes over $350,000.
- Expect new construction inside the city to be taller and narrower. A roughly 2,000-square-foot two-story home on a 40-foot lot trades yard width for an in-city address and a new build.
- Look at what an existing lot is now allowed to hold. Since August 2025, accessory dwelling units are permitted by right in R-1, R-2 and R-3. On a resale home in the city, the zoning district is now one of the factors in what the property could become.
This post reports what Monroe's zoning code permits. It's general information, not legal or financial advice. Before buying a property with plans for an ADU, a duplex or a lot split, confirm the rules for that parcel with the City of Monroe's planning staff and the right professionals.
Quick Answers
Did Monroe County home prices go up 7% in 2026? The average sale price did, year-to-date through August 2026. Price per square foot rose about 3%, and within each price tier it moved between -2% and +1%.
Why are 40-foot lots possible in Monroe now? The zoning update that took effect August 1, 2025 lowered minimum lot widths in all three single-family districts, down to 40 feet in R-2 and 35 feet in R-3.
Are the LaPlaisance Road homes for sale yet? Clearmont Builders hasn't published prices. As of the Monroe News report in November 2025, the model home's start depended on sales.
If you're watching the under-$200,000 tier shrink and wondering whether a narrow-lot new build or a resale with ADU potential fits your budget better, I'm happy to compare real Monroe listings with you, tier by tier. Jacob Levicki brings a construction superintendent's eye to every new build and every lot. Let's Connect.
