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Sonja M Costner

Sonja M Costner
Real Estate Agent (Broker Sales)
Saint Petersburg FL

Broker Sales (FL: 3292671)

12 years experience

REALTOR® 6 Active Listings Serves Pinellas County, FL
View on Realtor.com

Contact Information

Brokerage
Dalton Wade Inc

Office Website
Office Address
260 1st Ave S Ste 200 Saint Petersburg
Saint Petersburg, FL  33701
(Pinellas County)
Office Phone
888-668-8283
Office Fax
Mobile
813-922-8234
Email
sonj*@**************.com

Service Areas

Tampa: FL University: FL Lutz: FL Pebble Creek: FL Land O' Lakes: FL Wesley Chapel: FL Thonotosassa: FL Pasadena Hills: FL St. Leo: FL San Antonio: FL Temple Terrace: FL East Lake-Orient Park: FL Dade City: FL Dade City North: FL Zephyrhills: FL Zephyrhills West: FL Zephyrhills South: FL Elfers: FL New Port Richey: FL Beacon Square: FL Port Richey: FL

About Sonja Costner

Sonja Costner brings over two decades of real estate investment experience to her role as a licensed REALTOR®, a position she has held since 2014. Based in the Tampa Bay area, she assists clients in Hillsborough, Pinellas, Polk, and Pasco Counties, with a particular focus on the communities of New Tampa, Wesley Chapel, Land O' Lakes, Lutz, Tampa, Temple Terrace, and Zephyrhills. Sonja has developed a niche in working with "For Sale By Owner" sellers, guiding them through the listing and preparation processes to maximize their home’s appeal. Her expertise is particularly valuable in navigating the competitive housing market, where she excels at securing accepted offers for her buyers.

Sonja holds a bachelor's degree from Hampton University and a master's degree from McDaniel College, along with post-graduate studies at East Carolina University. Before transitioning to real estate, she dedicated her career to supporting students and families in Florida and Maryland as a speech-language pathologist and specialist for exceptional children.

In 2017, Sonja achieved the esteemed Pricing Strategy Advisor (PSA) designation from the National Association of REALTORS® (NAR), underscoring her commitment to professional development. She is an active member of NAR, the Florida Association of REALTORS®, and the Central Pasco Association of REALTORS® (CPAR).

Originally from the coastal regions of South Carolina, Sonja moved to Tampa Bay in 2003, having previously lived in Calvert County, Maryland. She appreciates the natural beauty of the area, believing that the combination of the bay, lakes, and the Gulf of Mexico makes it one of Florida's most desirable locations.

Sonja is dedicated to helping clients buy, sell, or invest in homes that embody the Florida lifestyle, catering to those who share her love for coastal living.

Pinellas County, FL Real Estate Market Analysis (Single Family Homes)

$843,499
Avg. Listing Price
From Sonja's portfolio
3.2 / 2.4
Avg. Beds/Baths
Typical property size
1,916 sf
Avg. Square Footage
Interior living space
5328
Active Listings
Current inventory

Pinellas County's real estate market stands out as one of Florida's most dynamic and densely populated markets, encompassing a peninsula surrounded by Tampa Bay and the Gulf of Mexico. This unique geography creates distinct micro-markets ranging from waterfront luxury properties to urban condominiums and suburban family neighborhoods. The county's 21,550 actively licensed real estate agents reflect the intense competition and high transaction volume that characterize this coastal market.

What makes Pinellas County particularly fascinating is its compact size combined with extraordinary diversity in property types and price points. From the bustling downtown St. Petersburg market to the beach communities of Clearwater and Indian Rocks Beach, agents here must navigate everything from historic bungalows to high-rise condos and waterfront estates. The fact that all 21,550 agents maintain current email addresses demonstrates the market's tech-savvy approach to business communications.

Major Pinellas County, Florida Real Estate Markets

St. Petersburg dominates as the county's largest market, experiencing a remarkable transformation with its revitalized downtown core, thriving arts district, and expanding job market. The city's diverse neighborhoods range from the historic Kenwood area to the waterfront luxury of Snell Isle. Clearwater represents the second major market hub, particularly strong in vacation rentals and second homes due to its renowned beaches and tourism infrastructure.

Smaller but significant markets include Dunedin with its charming downtown and spring training appeal, Belleair and Belleair Bluffs for luxury residential properties, and Largo representing more affordable family housing options. Coastal communities like Redington Beach, Indian Shores, and Treasure Island create specialized markets focused on vacation properties and waterfront living, each requiring agents with specific local expertise.

Market Dynamics and Geographic Complexity

Pinellas County's real estate market operates with unusual intensity due to limited land availability and continuous development pressure. The peninsula's geography creates natural boundaries that drive property values and influence development patterns differently than typical mainland markets. Waterfront access, flood zones, and hurricane considerations play outsized roles in property valuations and buyer decisions.

The market experiences significant seasonal fluctuations driven by snowbird migration patterns and vacation rental demand. This creates complex inventory cycles where agents must understand both permanent resident needs and temporary resident preferences. The high concentration of agents relative to land area means specialization becomes crucial, with many focusing on specific neighborhoods, property types, or client demographics.

Why Businesses Need Pinellas County, Florida Agent Contact Data

The concentration of 21,550 agents in a relatively compact geographic area creates exceptional opportunities for businesses serving the real estate industry. Mortgage lenders, insurance companies, home inspectors, and construction contractors can efficiently reach a large number of active professionals within a defined market area. The high transaction volume and property values in Pinellas County translate to agents with substantial purchasing power and frequent service needs.

Having verified email contacts for all active agents enables targeted marketing campaigns based on geographic specialization, property type focus, or brokerage affiliation. Title companies can reach closing-focused agents, while luxury service providers can target waterfront and high-end specialists. The market's seasonal nature also creates opportunities for businesses offering temporary or seasonal services to time their outreach effectively.

Current Property Listings

As of 2/7/2026, Sonja Costner has 6 properties for sale in Saint Petersburg and surrounding areas.

$299,900

Listed 2025-11-12

148 Lookout Dr
Apollo Beach, FL  33572

Beds: 3.0
Baths: 2.0
Sq Ft: 1,809
Lot: 5,227 sf
Single Family Map
View Full Details

$155,000

Listed 2025-11-14

1207 Eastloch Ct
Sun City Center, FL  33573

Beds: 2.0
Baths: 2.0
Sq Ft: 1,516
Lot: 2,178 sf
Condos Map
View Full Details

$337,000

Listed 2025-11-23

3412 Bonsilva St
Plant City, FL  33566

Beds: 3.0
Baths: 2.0
Sq Ft: 1,679
Lot: 7,405 sf
Single Family Map
View Full Details

$335,000

Listed 2025-09-03

2583 Fencepost Dr
Odessa, FL  33556

Beds: 3.0
Baths: 2.5
Sq Ft: 1,441
Lot: 2,178 sf
Single Family Map
View Full Details

$230,000

Listed 2025-12-04

7222 Meadowbrook Dr
Sarasota, FL  34243

Beds: 3.0
Baths: 2.0
Sq Ft: 1,623
Lot: 12,632 sf
Single Family Map
View Full Details

$475,000

Listed 2025-09-24

6226 Eaglebrook Ave
Tampa, FL  33625

Beds: 3.0
Baths: 2.5
Sq Ft: 2,177
Lot: 7,770 sf
Single Family Map
View Full Details

Current Property Rentals

Sonja Costner currently has no rental properties available in Saint Petersburg and surrounding areas. Check back later.