Kathryn Tessmer

Hartland WI

Keller Williams Realty-Lake Country

81 Closed Sales

$39.3M Total Value

$210K - $2.2M Price Range

$484.8K Average Price

Prior 5 years

About Kathryn

Hi! My name is Katy Tessmer and finding your family not only the right home but the right community for your lifestyle is my goal. My passion for the real estate field makes me the perfect fit for any buyer or seller.

My background in advertising and marketing is a wonderful fit for real estate. For over 6 years I worked with The Mark Travel Corporation managing the revenue and passenger goals for a wholesale travel product that produced over $4 million each year. Prior to that time I received a Bachelor of Business with a triple major in Advertising, Marketing and Management.

Keller Williams is the largest real estate firm in the world. Our local office alone has over 70 agents that all work together for one goal: serving our clients' needs. Differing from other agencies we all work together and not in competition of one another.

I have the patience and enthusiasm to take any real estate transaction from offer to close smoothly. And, I will always return phone calls, emails promptly and treat each investment as if it were my own. Our team has the right contacts for lenders, inspectors and all of the necessary people to take your transaction from offer or listing to closing. You will be in great hands at all times. Serving, Loving, Listing Lake County. Let Katy find the new view that will matter to you.

Katy is an active member of the Lake Country Community, where she has lived for the past 11 years and loves it. She currently lives in Okauchee, WI with her husband and two children.

Home Types: House, Condo, MultiFamily, Lot/Land

Years of Experience: 8

Transaction History

1 Year
2 Year
5 Year

Seller Deals
Total Deals	13
Total Value	$7,525,567
Average Sale Price	$578,890
Price Range	$268K - $1.1M

Buyer Deals
Total Deals	10
Total Value	$5,000,999
Average Sale Price	$500,100
Price Range	$250K - $700K

1 Year View by Quarter

Seller Deals
Total Deals	22
Total Value	$11,468,567
Average Sale Price	$521,299
Price Range	$268K - $1.1M

Buyer Deals
Total Deals	17
Total Value	$8,411,103
Average Sale Price	$494,771
Price Range	$250K - $700K

2 Year View by Quarter

Seller Deals
Total Deals	41
Total Value	$18,196,335
Average Sale Price	$443,813
Price Range	$110K - $1.1M

Buyer Deals
Total Deals	40
Total Value	$21,072,248
Average Sale Price	$526,806
Price Range	$150K - $2.2M

5 Year View

Neighborhoods Kathryn is Experienced In

Kathryn's Open Houses

$294,900

Open Sat 10:30AM - 12PM
- 5 Beds
- 2 Baths
- 2,132 Sq Ft
3947 S 1st Place

Milwaukee, WI
Charming 5 bedroom Cape Cod offering incredible space, accessibility features & opportunity to make it your own! Main floor features a spacious primary bedroom with dual closets, full bath, convenient laundry, bright front living room/dining room combo & large family room with cozy wood-burning fireplace. Upstairs offers 4 additional bedrooms plus a full bath, creating flexible living space for

Kathryn Tessmer Keller Williams Realty-Lake Country

Kathryn's Active Listings

$524,900
- 3 Beds
- 2 Baths
- 1,710 Sq Ft
N10579 Deer Run

Athelstane, WI
Tucked into nearly 12 wooded acres on a Private Road, this Northwoods retreat blends rustic charm with everyday comfort. Warm knotty pine walls, tongue-and-groove ceilings, and soaring cathedral lines create the ultimate cabin feel, while the 3BR, 2BA layout offers space to relax and gather. The great room features a cozy gas fireplace, and the kitchen shines with Italian tile and center island.

Kathryn Tessmer Keller Williams Realty-Lake Country

$419,000
- 3 Beds
- 2 Baths
- 1,595 Sq Ft
2517 E Armour Ave

Saint Francis, WI
This St. Francis stunner is the ranch everyone wants--with the backyard everyone remembers. Stylish 3BR, 2BA home blends easy one-level living with standout entertaining spaces inside and out. The showstopper? A resort-style backyard featuring heated saltwater pool, expansive paver patio, firepit, outdoor bar with TV, and multiple spaces to lounge long after sunset. Inside, enjoy refinished

Kathryn Tessmer Keller Williams Realty-Lake Country

$440,000
- 2 Beds
- 1 Bath
- 1,344 Sq Ft
11168 Old 8

Tomahawk, WI
Tucked away on 23.83 acres of Northwoods paradise, this brand-new barndominium is the ultimate up-north retreat! Designed for adventure and relaxation, this 2 bedroom, 1 bath getaway features soaring 14-ft vaulted ceilings, a cozy fireplace, spacious loft, and an oversized kitchen with a massive island perfect for gathering after a day outdoors. Enjoy the peaceful wooded setting from the

Kathryn Tessmer Keller Williams Realty-Lake Country

Recently Sold

$605,000

Sold May 7, 2026
- 4 Beds
- 4 Baths
- 3,186 Sq Ft
N8W27287 Woodridge Ln

Waukesha, WI
- 14% Above List
- $190/SF
- 1 Day On Market
- Current Est. Value $559K
Kathryn Tessmer Keller Williams Realty-Lake Country

$408,000

Sold Apr 30, 2026
- 4 Beds
- 2 Baths
- 2,326 Sq Ft
1130 Green Tree Rd

West Bend, WI
- 2% Below List
- $175/SF
- 4 Days On Market
- Current Est. Value $416K
Kathryn Tessmer Keller Williams Realty-Lake Country

$1,057,000

Sold Apr 17, 2026
- 6 Beds
- 3.5 Baths
- 5,600 Sq Ft
W160N7480 Thornwood Cir

Menomonee Falls, WI
- 1% Above List
- $189/SF
- Current Est. Value $1M
Kathryn Tessmer Keller Williams Realty-Lake Country

$572,067

Sold Apr 16, 2026
- 3 Beds
- 2.5 Baths
- 2,900 Sq Ft
N6119 Willow Cir

Sullivan, WI
- 1% Above List
- $197/SF
- 2 Days On Market
- Current Est. Value $571K
Kathryn Tessmer Keller Williams Realty-Lake Country

$352,000

Sold Mar 27, 2026
- 3 Beds
- 2 Baths
- 1,824 Sq Ft
W398N5975 Autumn Woods Dr

Unit 45

Oconomowoc, WI
- 7% Above List
- $193/SF
- 2 Days On Market
- Current Est. Value $342K
Kathryn Tessmer Keller Williams Realty-Lake Country

$930,000

Sold Mar 23, 2026
- 3 Beds
- 3 Baths
- 2,954 Sq Ft
1523 Sandhill Blvd

Hartland, WI
- 5% Below List
- $315/SF
- Current Est. Value $926K
Kathryn Tessmer Keller Williams Realty-Lake Country

$267,500

Sold Oct 31, 2025
- 3 Beds
- 1 Bath
- 1,677 Sq Ft
1310 S Whitewater Ave

Jefferson, WI
- 9% Below List
- $160/SF
- 21 Days On Market
- Current Est. Value $321K
Kathryn Tessmer Keller Williams Realty-Lake Country

$465,000

Sold Oct 24, 2025
- 3 Beds
- 2 Baths
- 1,585 Sq Ft
N24W24041 Stillwater Ln

Unit A

Pewaukee, WI
- 8% Above List
- $293/SF
- 0 Days On Market
- Current Est. Value $466K
Kathryn Tessmer Keller Williams Realty-Lake Country

$689,000

Sold Aug 4, 2025
- 4 Beds
- 2.5 Baths
- 2,883 Sq Ft
W287N6903 Rock Ridge Way

Hartland, WI
- 2% Below List
- $239/SF
- 5 Days On Market
Kathryn Tessmer Keller Williams Realty-Lake Country

Awards and Designations

NAR - National Association of Realtors

Other Experience

First Time Home Buyers, Investments, Luxury Homes, New Construction

Kathryn Tessmer

(989) 264-0840

Homes for Sale by City

Kathryn Tessmer

About Kathryn

Transaction History

Seller Deals

Buyer Deals

Production Over Time

1 Year View by Quarter

Seller Deals

Buyer Deals

Production Over Time

2 Year View by Quarter

Seller Deals

Buyer Deals

Production Over Time

5 Year View

Neighborhoods Kathryn is Experienced In

Kathryn's Listings and Deals

Kathryn's Open Houses

Kathryn's Active Listings

Recently Sold

Awards and Designations

Other Experience