Duane Arnold Real Estate Agent - Korndoerfer Homes LLC

820 Kohlwey Dr, Grafton, WI For Sale $784,900 - listed by Duane Arnold — For Sale $784,900

Duane Arnold listing agent for 911 Kohlwey Dr, Grafton, WI - sold for $1,010,000 — Sold $1,010,000

229 Mallard Ct, Grafton, WI For Sale $171,990 - listed by Duane Arnold — For Sale $171,990

Duane Arnold buyer's agent for Lt2 113th St, Pleasant Prairie, WI - sold for $182,990 — Sold $182,990

Lt53 Mallard Ct, Grafton, WI For Sale $167,990 - listed by Duane Arnold — For Sale $167,990

Duane Arnold

Brookfield WI

Korndoerfer Homes LLC

45 Closed Sales

$13.8M Total Value

$101K - $2.4M Price Range

$306.3K Average Price

Prior 5 years

About Duane

Duane has been a sales professional for more than 35 years. Majority of those years were spent in new home sales. A native of Wisconsin who grew up in Platteville, Duane graduated from UW-Platteville (don't ask when) with a degree in Engineering.

Duane's technical background drew him to the residential construction industry. His extensive experience in sales taught him that listening to his customers wants and needs are what's most important. He enjoys the relationships established when helping people build their dream homes.

Duane is married with two children and one grandchild.

Home Types: Lot/Land, House

Education: University of Wisconsin - Platteville

Transaction History

1 Year
2 Year
5 Year

Seller Deals
Total Deals	13
Total Value	$6,114,750
Average Sale Price	$470,365
Price Range	$162K - $2.4M

Buyer Deals
Total Deals	1
Total Value	$182,990
Average Sale Price	$182,990

Seller Deals
Total Deals	25
Total Value	$9,492,779
Average Sale Price	$379,711
Price Range	$130K - $2.4M

Buyer Deals
Total Deals	1
Total Value	$182,990
Average Sale Price	$182,990

Seller Deals
Total Deals	37
Total Value	$12,143,489
Average Sale Price	$328,202
Price Range	$101K - $2.4M

Buyer Deals
Total Deals	8
Total Value	$1,638,760
Average Sale Price	$204,845
Price Range	$115K - $640K

5 Year View

Areas Duane is Experienced In

Duane's Listings and Deals

Duane's Recent Active Listings

$784,900
- 3 Beds
- 2 Baths
- 1,997 Sq Ft
820 Kohlwey Dr

Grafton, WI
The Geneva ranch features an open-concept layout with impressive finishes throughout! An 11' great room ceiling, transom windows & gas fireplace w/ stacked stone create a standout main living space. Designer kitchen features maple soft-close cabinetry, quartz countertops, stained island w/ snack bar, tile backsplash, walk-in pantry, built-in-look refrigerator panels & GE SS appliances. Primary

Duane Arnold Korndoerfer Homes LLC

$171,990
- Land
- 0.37 Acre
- $464,838 per Acre
229 Mallard Ct

Grafton, WI
Discover phase 2 of Hawks Ridge, ideally located in the Village of Grafton near Keup Road and Hwy 60 just north of Stonewall Farms. This peaceful community offers municipal sewer and water, with many homesites featuring lookout or walkout exposures. Hawks Ridge beautifully blends rustic charm with modern conveniences. Located within the highly regarded Grafton School District, schools are just a

Duane Arnold Korndoerfer Homes LLC

$167,990
- Land
- 0.41 Acre
- $409,732 per Acre
Lt53 Mallard Ct

Grafton, WI
Discover phase 2 of Hawks Ridge, ideally located in the Village of Grafton near Keup Road and Hwy 60 just north of Stonewall Farms. This peaceful community offers municipal sewer and water, with many homesites featuring lookout or walkout exposures. Hawks Ridge beautifully blends rustic charm with modern conveniences. Located within the highly regarded Grafton School District, schools are just a

Duane Arnold Korndoerfer Homes LLC

$175,990
- Land
- 0.35 Acre
- $502,829 per Acre
261 Mallard Ct

Grafton, WI
Discover phase 2 of Hawks Ridge, ideally located in the Village of Grafton near Keup Road and Hwy 60 just north of Stonewall Farms. This peaceful community offers municipal sewer and water, with many homesites featuring lookout or walkout exposures. Hawks Ridge beautifully blends rustic charm with modern conveniences. Located within the highly regarded Grafton School District, schools are just a

Duane Arnold Korndoerfer Homes LLC

$173,990
- Land
- 0.37 Acre
- $470,243 per Acre
264 Mallard Dr

Grafton, WI
Discover phase 2 of Hawks Ridge, ideally located in the Village of Grafton near Keup Road and Hwy 60 just north of Stonewall Farms. This peaceful community offers municipal sewer and water, with many homesites featuring lookout or walkout exposures. Hawks Ridge beautifully blends rustic charm with modern conveniences. Located within the highly regarded Grafton School District, schools are just a

Duane Arnold Korndoerfer Homes LLC

$159,990
- Land
- 0.43 Acre
- $372,070 per Acre
Lt64 Bluebill Ln

Grafton, WI
Discover phase 2 of Hawks Ridge, ideally located in the Village of Grafton near Keup Road and Hwy 60 just north of Stonewall Farms. This peaceful community offers municipal sewer and water, with many homesites featuring lookout or walkout exposures. Hawks Ridge beautifully blends rustic charm with modern conveniences. Located within the highly regarded Grafton School District, schools are just a

Duane Arnold Korndoerfer Homes LLC

$169,990
- Land
- 0.23 Acre
- $739,087 per Acre
669 Bluebill Ln

Grafton, WI
Discover phase 2 of Hawks Ridge, ideally located in the Village of Grafton near Keup Road and Hwy 60 just north of Stonewall Farms. This peaceful community offers municipal sewer and water, with many homesites featuring lookout or walkout exposures. Hawks Ridge beautifully blends rustic charm with modern conveniences. Located within the highly regarded Grafton School District, schools are just a

Duane Arnold Korndoerfer Homes LLC

$169,990
- Land
- 0.37 Acre
- $459,432 per Acre
618 Mallard Dr

Grafton, WI
Discover phase 2 of Hawks Ridge, ideally located in the Village of Grafton near Keup Road and Hwy 60 just north of Stonewall Farms. This peaceful community offers municipal sewer and water, with many homesites featuring lookout or walkout exposures. Hawks Ridge beautifully blends rustic charm with modern conveniences. Located within the highly regarded Grafton School District, schools are just a

Duane Arnold Korndoerfer Homes LLC

$169,990
- Land
- 0.25 Acre
- $679,960 per Acre
681 Bluebill Ln

Grafton, WI
Discover phase 2 of Hawks Ridge, ideally located in the Village of Grafton near Keup Road and Hwy 60 just north of Stonewall Farms. This peaceful community offers municipal sewer and water, with many homesites featuring lookout or walkout exposures. Hawks Ridge beautifully blends rustic charm with modern conveniences. Located within the highly regarded Grafton School District, schools are just a

Duane Arnold Korndoerfer Homes LLC

Recently Sold

$195,000

Sold Jul 31, 2026
- Land
- 1.40 Acres Lot
Lt188 Bayberry Ln

Grafton, WI
- 102 Days On Market
Duane Arnold Korndoerfer Homes LLC

$162,000

Sold Jun 9, 2026
- Land
- 0.65 Acres Lot
Lt167 Applewood Ct

Mequon, WI
- 2% Below List
- 72 Days On Market
Duane Arnold Korndoerfer Homes LLC

$171,990

Sold May 29, 2026
- Land
- 0.51 Acres Lot
Lt37 Mallard Dr

Grafton, WI
- 144 Days On Market
Duane Arnold Korndoerfer Homes LLC

$1,010,000

Sold May 27, 2026
- 4 Beds
- 3 Baths
- 3,699 Sq Ft
911 Kohlwey Dr

Grafton, WI
- 2% Above List
- 1 Day On Market
- $273/SF
- Current Est. Value $1M
Duane Arnold Korndoerfer Homes LLC

$749,900

Sold Apr 10, 2026
- 3 Beds
- 2 Baths
- 2,264 Sq Ft
1940 N Creek Dr

Grafton, WI
- 102 Days On Market
- $331/SF
- Current Est. Value $749K
Duane Arnold Korndoerfer Homes LLC

$263,000

Sold Mar 23, 2026
- Land
- 1.38 Acres Lot
10506 N Pine Tree Cir

Mequon, WI
- 1% Above List
- 5 Days On Market
Duane Arnold Korndoerfer Homes LLC

$173,990

Sold Mar 18, 2026
- Land
- 0.36 Acres Lot
Lt43 Mallard Ct

Grafton, WI
- 0 Days On Market
Duane Arnold Korndoerfer Homes LLC

$174,990

Sold Jan 16, 2026
- Land
- 0.32 Acres Lot
Lt2 Hawks Ridge Rd

Grafton, WI
- 271 Days On Market
Duane Arnold Korndoerfer Homes LLC

$2,400,000

Sold Nov 14, 2025
- 4 Beds
- 6 Baths
- 6,175 Sq Ft
W188N5078 Red Crown Trail

Menomonee Falls, WI
- 16% Below List
- 8 Days On Market
- $389/SF
Duane Arnold Korndoerfer Homes LLC

Frequently Asked Questions

Who is Duane Arnold, and what is their real estate background?

How many homes has Duane Arnold sold in Brookfield, WI?

What is Duane Arnold's track record representing buyers?

What is Duane Arnold's track record as a listing agent?

What areas does Duane Arnold serve?

How can I contact Duane Arnold?

Duane Arnold

(262) 912-9746

Korndoerfer Homes LLC

(262) 912-9746

Duane Arnold

About Duane

Transaction History

Seller Deals

Buyer Deals

Seller Deals

Buyer Deals

Seller Deals

Buyer Deals

Production Over Time

5 Year View

Areas Duane is Experienced In

Duane's Listings and Deals

Duane's Recent Active Listings

Recently Sold

Frequently Asked Questions

Who is Duane Arnold, and what is their real estate background?

How many homes has Duane Arnold sold in Brookfield, WI?

What is Duane Arnold's track record representing buyers?

What is Duane Arnold's track record as a listing agent?

What areas does Duane Arnold serve?

How can I contact Duane Arnold?