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Katherine Kratzig Portenga

Katherine Kratzig Portenga
Real Estate Agent (Broker Associate)
Denver CO

Broker Associate (CO: 100020185)

19 years experience

REALTOR® 3 Active Listings Serves Denver County, CO
View on Realtor.com

Contact Information

Brokerage
Coldwell Banker Global Luxury Denver

Office Website
Office Address
600 N Grant St Ste 900
Denver, CO  80203-3528
(Denver County)
Office Phone
303-758-7611
Office Fax
303-320-1338
Mobile
303-758-7611
Email
kati*@******************.com
Show Email for $5

Service Areas

Denver: CO Glendale: CO Fairmount: CO Berkley: CO Arvada: CO Wheat Ridge: CO Aurora: CO Lowry: CO Englewood: CO Cherry Hills Village: CO Greenwood Village: CO Lakeside: CO Mountain View: CO Edgewater: CO Lakewood: CO Applewood: CO Idledale: CO Genesee: CO Golden: CO East Pleasant View: CO West Pleasant View: CO Montbello: CO Twin Lakes: CO Welby: CO Sherrelwood: CO North Washington: CO Thornton: CO Westminster: CO Sheridan: CO Littleton: CO Columbine: CO Columbine Valley: CO Bow Mar: CO Ken Caryl: CO Centennial: CO Meridian: CO Inverness: CO Lone Tree: CO Dove Valley: CO Foxfield: CO Holly Hills: CO Highlands Ranch: CO Acres Green: CO Castle Rock: CO Parker: CO Castle Pines: CO Castle Pines Village: CO Stonegate: CO Grand View Estates: CO The Pinery: CO Dakota Ridge: CO Coal Creek: CO Louisville: CO Superior: CO Boulder: CO Eldorado Springs: CO Paragon Estates: CO Gold Hill: CO Tall Timber: CO Pine Brook Hill: CO Mountain Meadows: CO Sunshine: CO Altona: CO Seven Hills: CO Sugarloaf: CO Lazy Acres: CO Crisman: CO Gunbarrel: CO Valmont: CO Leyner: CO Lafayette: CO Erie: CO Broomfield: CO Federal Heights: CO Northglenn: CO Shaw Heights: CO

About Katherine Portenga

Katie K. Portenga is a dedicated REALTORĀ® committed to providing exceptional service to her clients in the Denver Metro area. With over 17 years of experience in the real estate industry, she has successfully closed more than $27 million in sales volume and completed over 27 transactions in the past year alone. Her outstanding performance has earned her recognition as a Top Individual Real Estate Producer by 5280 Magazine.

Katie's extensive knowledge of the Denver market, combined with her strong negotiation skills, allows her to effectively advocate for both buyers and sellers. She has built a reputation for integrity and hard work, resulting in numerous repeat clients who trust her expertise in navigating complex transactions.

As a long-time resident of Denver, Katie serves clients throughout the metropolitan area, from Castle Rock in the south to Aurora in the east, Golden in the west, and Boulder in the north. Her primary goal is to exceed client expectations, ensuring they feel confident referring her to family and friends.

Katie holds a Bachelor of Fine Arts degree from The University of Texas at Austin and has also studied at Boston University. Before transitioning to residential real estate, she gained valuable sales experience with Fortune 500 companies, including Xerox, Ethicon (a Johnson & Johnson company), and The Ritz-Carlton Club, where she honed her commitment to exceptional customer service.

Originally from South Texas, Katie was an accomplished sailboat racer, participating in regattas nationwide. After living in Austin, she relocated to Colorado in 2001 to embrace the mountain lifestyle, enjoying activities such as hiking, skiing, and biking. In her leisure time, she plays tennis, explores the outdoors, travels, and cherishes moments with her family and friends. Katie is a proud mother of two children, Lucy and Garrett, and has two dogs, George and Stetson. She is also an active supporter of The Logan School for Creative Learning.

For those looking to achieve their dream of homeownership or to sell their property for the best possible price, Katie K. Portenga is ready to assist. She is not only a knowledgeable real estate professional but also a trusted partner in navigating the Denver Metro real estate landscape.

**Achievements:**
- 5280 Black Diamond Individual Top Real Estate Producer
- Consistently ranked in the top 1% of Denver Realtors
- 27 homes sold in 2022, with prices ranging from $286,000 to $2.225 million
- 5280 Five Star Professional Award (2019-2022)
- Best of Zillow (2018, 2019)
- Platinum Club - Your Castle Real Estate (2018)
- Denver Metro Association of Realtors Excellence Award

Denver County, CO Real Estate Market Analysis (Single Family Homes)

$1,020,980
Avg. Listing Price
From Katherine's portfolio
3.6 / 2.8
Avg. Beds/Baths
Typical property size
2,501 sf
Avg. Square Footage
Interior living space
1882
Active Listings
Current inventory

Denver County's real estate market stands as one of Colorado's most dynamic and concentrated markets, encompassing the heart of the Mile High City and its immediate urban core. With 8,933 actively licensed real estate agents operating within the county boundaries, the market represents an incredibly dense concentration of real estate professionals serving a relatively compact geographic area that includes Denver proper and its closest neighboring communities.

What makes Denver County particularly fascinating is the sheer intensity of agent activity relative to its size. All 8,933 licensed agents maintain email contact information, reflecting a tech-savvy professional community that embraces digital communication and modern marketing approaches. This level of connectivity speaks to the competitive nature of the market and the sophisticated tools agents use to stay ahead in one of the West's most sought-after real estate environments.

Major Denver County, Colorado Real Estate Markets

The Denver County market centers around several distinct urban neighborhoods and districts, each with unique characteristics and price points. Downtown Denver drives much of the high-end condominium and loft market, while areas like Capitol Hill, Highland, and the emerging River North Art District (RiNo) attract younger professionals seeking walkable communities with vibrant cultural scenes. These urban core markets have experienced tremendous appreciation over the past decade, transforming formerly industrial areas into trendy residential enclaves.

Beyond the downtown core, established neighborhoods like Park Hill, Washington Park, and Stapleton represent family-oriented markets with a mix of historic homes and new construction. The former Stapleton airport site, now a master-planned community, has become one of Denver's largest residential developments, attracting families and professionals who want modern amenities while remaining within Denver County limits. Each of these markets requires specialized knowledge that local agents possess.

Market Dynamics and Geographic Complexity

Denver County's real estate market operates within a unique geographic constraint that creates intense competition for limited inventory. Unlike surrounding counties that can expand outward, Denver County's boundaries are fixed, creating a supply-constrained environment where established neighborhoods undergo constant revitalization and redevelopment. This dynamic has led to rapid price appreciation and a market where agents must understand micro-neighborhood trends and zoning implications.

The county's market also reflects broader demographic shifts, with millennials and young professionals driving demand for urban living options while empty nesters seek luxury condominiums and townhomes in walkable areas. This generational convergence creates multiple market segments operating simultaneously, requiring agents to specialize in different buyer profiles and property types while navigating Denver's complex development regulations and historic preservation requirements.

Why Businesses Need Denver County, Colorado Agent Contact Data

Companies serving the real estate industry find Denver County's concentrated agent population invaluable for targeted marketing campaigns and business development initiatives. With nearly 9,000 agents operating in a defined geographic area, businesses can achieve remarkable efficiency in reaching decision-makers who influence significant real estate transactions. Mortgage lenders, insurance providers, home improvement companies, and real estate technology firms particularly benefit from direct access to this professional network.

The complete email coverage among Denver County's licensed agents enables sophisticated digital marketing strategies and personalized outreach campaigns. Service providers can segment their communications based on agent specializations, target high-volume producers, or focus on specific neighborhoods where their services align with market needs, maximizing marketing ROI while building meaningful professional relationships in Colorado's most important urban real estate market.

Current Property Listings

As of 2/17/2026, Katherine Portenga has 3 properties for sale in Denver and surrounding areas.

$1,349,000

Listed 2025-12-20

3824 Ski Hill Rd
Breckenridge, CO  80424

Beds: 3.0
Baths: 3.0
Sq Ft: 2,301
Lot: 22,651 sf
Single Family Map
View Full Details

$795,000

Listed 2025-09-18

1080 E 13th Ave Apt 403
Denver, CO  80218

Beds: 3.0
Baths: 3.0
Sq Ft: 2,096
Condos Map
View Full Details

$850,000

Listed 2025-11-04

375 Pika Pt
Lafayette, CO  80026

Beds: 5.0
Baths: 3.5
Sq Ft: 3,753
Lot: 10,019 sf
Single Family Map
View Full Details

Current Property Rentals

Katherine Portenga currently has no rental properties available in Denver and surrounding areas. Check back later.