Karen Seitz's Profile Photo

Karen Seitz

Broker Associate
karen@mysummitcollective.com
M: 406-570-3823

Revenue

Over $410 Million in Sales Volume 

Awards

#1 Overall Individual Agent in Summit County 2023
#1 Compass Agent in Summit County  2022, 2023, 2024 and 2025.
Top 1 of Agents Nationwide 2021, 2022, 2023, 2024,2025 (Real Trends America)

Affiliations
Realm ® Global Member
Compass Coast to Coast Network
Compass Connected
Resort and Second-Home Property Specialist (RSPS)

Specialties

Second homes, Ranch Properties, Ski properties, New construction, Vacation / Short-term Rentals, luxury homes in Breckenridge, Silverthorne, Frisco, Keystone and Copper. Summit County real estate expert, ski properties, second-home specialist, ranch property specialist in Summit County, vacation / short term rental homes in Breckenridge/Keystone,

Education

Montana State University



Client Testimonials

Scroll down for more

★★★★★
"Karen and Chris shared our excitement about selling our condo and gave us sound advice with regards to marketing the property and pricing. They provided plenty of comparatives and were confident of us getting a much higher price based on the market, their experience. They have excellent services to get the property to the markets (Denver, international) which resulted in us receiving many offers. They explained the good and better offers. After the agreements were signed they ensured we stayed on track and complied with dates and disclosures and we successfully closed relatively stress free. They even provided storage as we wait to move into to our new home. A very positive experience and a deep felt thanks from us to Karen, Chris and Morgan.." - Paul S.

★★★★★
"Karen is a force of nature, and who you want on your side buying a gorgeous mountain home in such a hot, competitive market such as Summit County. Karen made it simple - from offering a home pre-listing, to negotiations, to the move in .... Karen and her team know the market, the builders and the homeowners in the area, and seal the deal with energy, enthusiasm and ease. No request goes unanswered. That Karen lives in, and supports her community in both real estate and charitable ventures is just the icing on the cake-- mountain living truly is her passion, and she makes dreams come true! Karen would be the first person we'd call to sell ... but Summit Sky Ranch isn't a place you'll ever want to leave. " - Amy B.

★★★★★
"Karen was extremely professional while selling our home in Silverthorne. She was able to go through every detail with us and eased all of our concerns. She has a great marketing plan and she was able to help us get our home ready and place it on the market. Once we had it up on the market she was able to sell it within a week for an amazing price. Very happy with her service! " - Mary C

★★★★★
"Karen and her team made our purchase and home building a very enjoyable and stress free experience. She took care of us and was always available even after purchase to answer any questions any give advise. She impressed me as an extremely professional, honest and knowledgable realtor. I strongly recommend her to anybody looking fro a real estate in Summit County." - Solobodan T.

★★★★★
"Karen is incredibly responsive and the ultimate professional! I highly recommend her and the team when you need to buy or sell real estate in Summit County, Colorado!" - Katherine K.

★★★★★
"Karen Seitz is an amazing agent! She’s very knowledgeable, communicative and attentive. She took great care of my clients looking to move to Colorado. " - Vivian H.

★★★★★
"If I could give Karen 10 stars, I would! She is knowledgeable of the area and the market. She worked tirelessly to help us find the mountain get away of our dreams!" - Sarah R.

★★★★★
"I love working with Karen! She’s very knowledgeable, dynamic and attentive." - Ann P.


About Karen

Karen Seitz is a top real estate agent in Breckenridge and Summit County, Colorado, specializing in luxury mountain homes, vacation properties, ranches, and second-home investments. She has guided buyers and sellers across Breckenridge, Silverthorne, Frisco, Keystone, and Dillon, delivering record-setting results in one of Colorado’s most competitive markets.

With over $410 million in closed sales since 2020, Karen was the #1 individual agent in Summit County in 2023 and has been the top Compass agent in Summit County for four consecutive years — 2022, 2023, 2024 and 2025. She is also consistently ranked among the top 1.5% of Realtors nationwide by Real Trends America.

Originally from northern Minnesota, Karen studied Marketing at Montana State University before making Breckenridge home in 2011. Her strong business background, relentless work ethic, and deep local expertise make her a trusted advisor for clients seeking everything from ski-in, ski-out retreats to private ranch properties and investment homes.

Outside of real estate, Karen embraces the lifestyle she sells. She is an avid skier, hiker, and Boston Marathon finisher, and she gives back through her nonprofit animal-rescue mission, Journey Tails, while enjoying ranch life with her rescued cows and dogs.

Known for her sincerity, optimism, and competitive drive, Karen makes buying, selling, and investing in Summit County real estate seamless and rewarding. For clients — and for referral partners across feeder markets — she is the clear choice for trusted results in the Colorado mountains.

Karen Seitz’s Listings

a front view of a house with a yard
a front view of a house with a yard
a view of swimming pool in front of residential houses with outdoor space
a living room with furniture flat screen tv and a fireplace
a living room with furniture and a window
a living room with furniture or couch and a window
a living room with furniture rug and a fireplace
a living room with fireplace furniture and a flat screen tv
a view of a dining room with furniture a chandelier and wooden floor
a view of a dining room with furniture
a kitchen with stainless steel appliances granite countertop a stove a sink and a microwave
a kitchen with stainless steel appliances granite countertop a stove and a sink
a living room with furniture and a floor to ceiling window
a living room with furniture and a large window
a spacious bedroom with a bed and glass windows
a front view of a house with staircase
a lobby with furniture and a potted plant
a living room with furniture and a couch
a living room with furniture and a flat screen tv
a bathroom with a granite countertop sink mirror vanity and toilet
a bed room with a bed and a window
a bedroom with a bed and window
a bedroom with a bed and a large mirror
a bathroom with a sink toilet and shower
a backyard of a house with table and chairs
a view of entryway with furniture
a view of patio with a table and chairs and potted plants
a view of a balcony with wooden chairs and floor
a view of a brick house with a large window
a view of balcony with chairs
a view of houses with a swimming pool and a yard
a view of a house next to a yard with big trees
a front view of a building
a front view of a house with a yard
a view of a city
a view of a town with mountains in the background
1/36
Compass Coming Soon

$3,600,000

4
Bedrooms
3,640
Square Feet
Unavailable
Acres

293 Caravelle Drive, Keystone, CO 80435

$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
$1,975,000 | 53 Hargrove Way, Silverthorne, CO 80498
1/37

MLS #S1067489

Listed By CompassPending

$1,975,000

4
Bedrooms
3
Bathrooms
2,317
Square Feet
0.05
Acres

53 Hargrove Way, Silverthorne, CO 80498

a living room with furniture and a fireplace
a living room with furniture and a fireplace
a view of a dining room with furniture window and outside view
a dining hall with stainless steel appliances granite countertop a dining table and chairs
a open kitchen with stainless steel appliances granite countertop a stove top oven a refrigerator a dining table and chairs with wooden floor
a kitchen with stainless steel appliances granite countertop a refrigerator a stove and a sink with wooden cabinets
a view of a dining room with furniture wooden floor and chandelier
a bedroom with a bed and a couch
a white bath tub sitting in a bathroom
a bathroom with a sink vanity and mirror
a bedroom with a bed chair and window
a bedroom with a bed and a painting on the wall
a bathroom with a sink a toilet and a mirror
a view of room with wooden floor
a living room with furniture large windows and a flat screen tv
a living room with furniture and a large window
a work room with furniture and a window
a living room with furniture and a large window
a living room with furniture and a rug
a bathroom with a sink a toilet and shower
a view of a bench in front of a house
a aerial view of a house with table and chairs in a patio
a view of house with backyard and sitting area
a view of a pathway both side of yard
a view of street with trees
a view of a balcony with furniture
a front view of a house with a yard and trees
$1,800,000 | 507 County Road 674, Breckenridge, CO 80424
1/28

MLS #S1067666

Listed By Compass

$1,800,000

4
Bedrooms
3
Bathrooms
3,251
Square Feet
0.5
Acres

507 County Road 674, Breckenridge, CO 80424

$1,275,000 | 325 Four O'clock Road, Unit C301, Breckenridge, CO 80424
$1,275,000 | 325 Four O'clock Road, Unit C301, Breckenridge, CO 80424
$1,275,000 | 325 Four O'clock Road, Unit C301, Breckenridge, CO 80424
$1,275,000 | 325 Four O'clock Road, Unit C301, Breckenridge, CO 80424
$1,275,000 | 325 Four O'clock Road, Unit C301, Breckenridge, CO 80424
$1,275,000 | 325 Four O'clock Road, Unit C301, Breckenridge, CO 80424
$1,275,000 | 325 Four O'clock Road, Unit C301, Breckenridge, CO 80424
$1,275,000 | 325 Four O'clock Road, Unit C301, Breckenridge, CO 80424
$1,275,000 | 325 Four O'clock Road, Unit C301, Breckenridge, CO 80424
$1,275,000 | 325 Four O'clock Road, Unit C301, Breckenridge, CO 80424
$1,275,000 | 325 Four O'clock Road, Unit C301, Breckenridge, CO 80424
$1,275,000 | 325 Four O'clock Road, Unit C301, Breckenridge, CO 80424
$1,275,000 | 325 Four O'clock Road, Unit C301, Breckenridge, CO 80424
$1,275,000 | 325 Four O'clock Road, Unit C301, Breckenridge, CO 80424
$1,275,000 | 325 Four O'clock Road, Unit C301, Breckenridge, CO 80424
$1,275,000 | 325 Four O'clock Road, Unit C301, Breckenridge, CO 80424
$1,275,000 | 325 Four O'clock Road, Unit C301, Breckenridge, CO 80424
$1,275,000 | 325 Four O'clock Road, Unit C301, Breckenridge, CO 80424
$1,275,000 | 325 Four O'clock Road, Unit C301, Breckenridge, CO 80424
$1,275,000 | 325 Four O'clock Road, Unit C301, Breckenridge, CO 80424
$1,275,000 | 325 Four O'clock Road, Unit C301, Breckenridge, CO 80424
$1,275,000 | 325 Four O'clock Road, Unit C301, Breckenridge, CO 80424
$1,275,000 | 325 Four O'clock Road, Unit C301, Breckenridge, CO 80424
$1,275,000 | 325 Four O'clock Road, Unit C301, Breckenridge, CO 80424
$1,275,000 | 325 Four O'clock Road, Unit C301, Breckenridge, CO 80424
$1,275,000 | 325 Four O'clock Road, Unit C301, Breckenridge, CO 80424
1/26
Compass Coming Soon

$1,275,000

2
Bedrooms
1,155
Square Feet

325 Four O'clock Road, Unit C301, Breckenridge, CO 80424

a view of a large building with a street
a view of roof with sky view
a kitchen with stainless steel appliances granite countertop a stove and a refrigerator
a bathroom with a sink and a mirror
a kitchen with stainless steel appliances cabinets and a window
a living room with furniture and flat screen tv
a living room with furniture a flat screen tv and a refrigerator
a bedroom with a bed and wooden floor
a bathroom with a sink and a mirror
a spacious bathroom with a sink toilet and shower
a bedroom with a bed a dresser and a flat screen tv
a bathroom with a toilet a sink and a mirror
a bathroom with a toilet a sink and mirror
a view of a outdoor seating area
a view of outdoor space
a view of a room with gym equipment
a view of a room with gym equipment
a bathroom with a tub and shower
a living room with fireplace furniture and a chandelier
a view of a hallway with wooden floor and windows
a view of a brick house with large windows
a city street lined with tall buildings
a view of entryway
a view of a chairs and table in the patio
a view of street with sitting area
a view of a city
a view of outdoor space with seating area
a view of buildings and yard
a view of city with tall buildings
a view of a backyard with a patio
$1,099,000 | 201 Zephyr Way, Unit 2404, Winter Park, CO 80482
$1,099,000 | 201 Zephyr Way, Unit 2404, Winter Park, CO 80482
$1,099,000 | 201 Zephyr Way, Unit 2404, Winter Park, CO 80482
$1,099,000 | 201 Zephyr Way, Unit 2404, Winter Park, CO 80482
$1,099,000 | 201 Zephyr Way, Unit 2404, Winter Park, CO 80482
$1,099,000 | 201 Zephyr Way, Unit 2404, Winter Park, CO 80482
$1,099,000 | 201 Zephyr Way, Unit 2404, Winter Park, CO 80482
$1,099,000 | 201 Zephyr Way, Unit 2404, Winter Park, CO 80482
$1,099,000 | 201 Zephyr Way, Unit 2404, Winter Park, CO 80482
$1,099,000 | 201 Zephyr Way, Unit 2404, Winter Park, CO 80482
1/40

MLS #S1068141

Listed By Compass

$1,099,000

2
Bedrooms
2
Bathrooms
953
Square Feet

201 Zephyr Way, Unit 2404, Winter Park, CO 80482

a view of a city
a view of a city with lush greenery space
a view of a city with lots of residential buildings
an aerial view of a house with a garden
an aerial view of a houses with outdoor space
a view of a city with mountains in the background
a view of a city with mountains in the background
an aerial view of residential houses with outdoor space and river
a view of a city
a view of a yard with a tree
a view of a yard and a street view
a view of a yard with plants and trees
1/12

MLS #S1059896

Listed By Compass

$749,900

Unavailable
Bedrooms
Unavailable
Bathrooms
Unavailable
Square Feet
0.18
Acres

281 Elk Circle, Dillon, CO 80435

Karen Seitz’s Transactions

Past Sales
$4,950,000 | 44 Aerie Drive, Silverthorne, CO 80498

$4,950,000

4
Bedrooms
5
Bathrooms
4,707
Square Feet
0.61
Acres

44 Aerie Drive, Silverthorne, CO 80498

LIV Sotheby's I.R. • MLS #S1044111

a front view of a house with a yard

$4,500,000

5
Bedrooms
6
Bathrooms
5,892
Square Feet
0.74
Acres

219 Glen Eagle Loop, Breckenridge, CO 80424

Engel & Volkers Denver • MLS #S1055468

a front view of a house with a yard

$3,846,992

4
Bedrooms
5
Bathrooms
3,040
Square Feet
0.81
Acres

139 McKay Place, Silverthorne, CO 80498

MLS #S1023249

$3,500,000 | 193 Siskin Lane, Frisco, CO 80443

$3,500,000

4
Bedrooms
3,193
Square Feet
0.98
Acres

193 Siskin Lane, Frisco, CO 80443

MLS #9823663

$3,500,000 | 283 McKay Road, Silverthorne, CO 80498

$3,500,000

4
Bedrooms
5
Bathrooms
3,411
Square Feet
1.99
Acres

283 McKay Road, Silverthorne, CO 80498

MLS #S1067509

$3,475,000 | 257 McKay Road, Silverthorne, CO 80498

$3,475,000

4
Bedrooms
4
Bathrooms
3,445
Square Feet
0.86
Acres

257 McKay Road, Silverthorne, CO 80498

MLS #S1053707

$3,400,000 | 592 Peerless Drive, Breckenridge, CO 80424

$3,400,000

0.55
Acres

592 Peerless Drive, Breckenridge, CO 80424

MLS #9262300

a front view of a house with a yard

$3,300,873

4
Bedrooms
5
Bathrooms
3,040
Square Feet
3.25
Acres

280 McKay Road, Silverthorne, CO 80498

MLS #S1023896

a view of a swimming pool with a patio

$3,100,000

4
Bedrooms
5
Bathrooms
3,445
Square Feet
0.50
Acres

27 Maryland Creek Road, Silverthorne, CO 80498

MLS #S1057587

a living room with furniture and a floor to ceiling window

$3,030,000

4
Bedrooms
5
Bathrooms
3,038
Square Feet
0.51
Acres

77 Maryland Creek Road, Silverthorne, CO 80498

MLS #S1039595

$2,948,000 | 119 Youngs Preserve Road, Silverthorne, CO 80498

$2,948,000

4
Bedrooms
5
Bathrooms
3,445
Square Feet
0.38
Acres

119 Youngs Preserve Road, Silverthorne, CO 80498

MLS #S1062327

$2,948,000 | 119 Young's Preserve, Silverthorne, CO 80498

$2,948,000

4
Bedrooms
3,445
Square Feet
0.38
Acres

119 Young's Preserve, Silverthorne, CO 80498

MLS #1714966

a view of a big house with a big yard and large trees

$2,850,000

5
Bedrooms
4,783
Square Feet
2.91
Acres

435 Davenport Loop, Breckenridge, CO 80424

COLDWELL BANKER DISTINCTIVE PROPERTIES • MLS #5695057

a view of a big house with a big yard and large trees

$2,850,000

5
Bedrooms
7
Bathrooms
4,783
Square Feet
2.91
Acres

435 Davenport Loop, Breckenridge, CO 80424

Coldwell Banker Distinctive Properties • MLS #S1019032

a view of a house with a backyard

$2,800,000

3
Bedrooms
2,905
Square Feet
0.48
Acres

127 Maryland Creek Road, Silverthorne, CO 80498

MLS #5557191

a view of a house with a big yard potted plants and large tree

$2,800,000

4
Bedrooms
4
Bathrooms
3,967
Square Feet
0.40
Acres

325 Game Trail Road, Silverthorne, CO 80498

Nelson Walley Real Estate • MLS #S1048550

$2,750,000 | 75 Glazer Trail, Silverthorne, CO 80498

$2,750,000

5
Bedrooms
3,227
Square Feet
0.33
Acres

75 Glazer Trail, Silverthorne, CO 80498

MLS #2602358

$2,700,000 | 25 Beasley Road, Silverthorne, CO 80498

$2,700,000

4
Bedrooms
2,905
Square Feet
0.47
Acres

25 Beasley Road, Silverthorne, CO 80498

MLS #8665536