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Diane M Sullivan

Diane M Sullivan
Real Estate Agent (Broker)
San Diego - CA

Broker (CA: 01409974)

22 years experience

REALTOR® 2 Active Listings Serves San Diego County, CA
View on Realtor.com

About Diane Sullivan

With nearly two decades of experience in real estate, Diane has adeptly navigated various market cycles, assisting both buyers and sellers in achieving their goals during both prosperous and challenging times.

Diane's commitment to her clients is evident in her strong work ethic and genuine enthusiasm. She strives to ensure that the transition between homes is seamless and enjoyable. Her approachable, honest, and straightforward manner enables clients to grasp current market dynamics, empowering them to make informed real estate decisions. This fosters trust and leads to optimal outcomes.

Recognizing that buying or selling a home is a significant life event, Diane is dedicated to facilitating a smooth and successful process. Her extensive knowledge of the San Diego real estate landscape is a valuable asset for anyone looking to buy or sell in the area.

Residing in the Sunset Cliffs neighborhood of Point Loma, Diane appreciates the natural beauty that surrounds her. She understands the importance of selecting a Realtor® who embodies tenacity, integrity, and professionalism, ensuring that clients work with someone respected among peers.

Throughout her 17 years in the industry, Diane has prioritized exceeding client expectations, a commitment reflected in her numerous certifications, accolades, and positive client testimonials. She aims to educate and inform her clients, guiding them through one of life’s most significant decisions. Her dedication to client satisfaction is unwavering.

Having lived, worked, and engaged in the Sunset Cliffs community since 1983, Diane values her role as both a resident and a Realtor®. A graduate of San Diego State University, she is an active community member who believes in giving back to the area she serves. The unique coastal lifestyle and vibrant community are aspects she cherishes deeply.

Clients can be confident that their homes will be treated with the utmost care and attention, as Diane approaches each transaction as if it were her own.

**Awards:**
- Circle of Excellence Award, San Diego Association of Realtors / San Diego Union Tribune (2016-2020, 2022)
- Five Star Real Estate Agent, San Diego Magazine (2010-2022)
- Zillow Premier Agent (2009-2021)
- President’s Circle Award, Prudential California Realty (2005, 2007; Top 3% of Agents Nationwide)
- Honor Society Award, Prudential California Realty (2008; Top 5% of Agents Nationwide)

**Designations:**
- Broker Associate
- Certified Probate Real Estate Specialist (CPRES)
- Graduate of Realtor Institute (GRI)
- Accredited Buyer’s Representative (ABR)

**Community Involvement:**
- Agent of the Year, Point Loma Ocean Beach Realty Association (2022)
- Member, Professional Standards Committee, San Diego Association of Realtors
- Former Member, Grievance Committee, San Diego Association of Realtors
- Member, Ocean Beach Merchants Association
- Member, Point Loma Association
- Former Member, MADCAPS (Mothers and Daughters Caring About Philanthropies)
- Former Board Member, PLHS Parent Association
- Former Board Member, PLHS Softball Booster
- Former Board Member, PLHS Baseball Booster
- Former Board Member, Correia Association, Correia Middle School
- Former Board Member, Dana Association, Dana Middle School
- Former President and Board Member, Friends of Silver Gate, Silver Gate Elementary

San Diego County, CA Real Estate Market Analysis (Single Family Homes)

$1,851,830
Avg. Listing Price
From Diane's portfolio
3.7 / 3.0
Avg. Beds/Baths
Typical property size
2,420 sf
Avg. Square Footage
Interior living space
4283
Active Listings
Current inventory

San Diego County's real estate market stands as one of California's most dynamic and valuable, encompassing everything from beachfront luxury properties in La Jolla to family-friendly suburban developments in Poway and Santee. With a median home price consistently ranking among the nation's highest, this Southern California market attracts investors, homebuyers, and real estate professionals from across the globe, creating an intensely competitive environment where local expertise proves invaluable.

The county's 29,242 total actively licensed agents represent one of the most concentrated real estate professional populations in the United States, with remarkably, all 29,242 agents maintaining email contact information—a testament to the market's tech-savvy, digitally connected nature. This substantial agent network reflects the complexity and opportunity within San Diego's diverse real estate landscape, from downtown high-rise condominiums to sprawling ranch properties in the backcountry.

Major San Diego County, California Real Estate Markets

The county's real estate activity centers around several distinct metropolitan markets, each with unique characteristics and price points. Coastal communities like Del Mar, Solana Beach, and Encinitas command premium prices for their proximity to beaches and highly rated schools, while inland cities such as Escondido, El Cajon, and Chula Vista offer more affordable options that still benefit from the county's year-round climate and economic opportunities. Downtown San Diego's urban core has experienced dramatic growth in high-density residential development, transforming formerly industrial areas into sought-after neighborhoods.

North County markets including Carlsbad, Oceanside, and Vista have emerged as particularly hot segments, attracting both young professionals and retirees seeking newer construction and master-planned communities. Meanwhile, East County areas like Santee, La Mesa, and Lemon Grove provide traditional suburban living with significantly lower entry costs, making them increasingly popular among first-time homebuyers and families seeking larger properties with outdoor space.

Market Dynamics and Geographic Complexity

San Diego County's real estate market exhibits remarkable geographic complexity, with microclimates, school district boundaries, and proximity to employment centers creating dramatically different property values within short distances. A surprising trend has been the rise of luxury markets in previously overlooked areas—neighborhoods in National City and Spring Valley have seen substantial appreciation as buyers seek alternatives to traditionally expensive coastal areas, while maintaining reasonable commutes to major employment hubs.

The market's seasonal patterns differ significantly from many California regions, with activity remaining relatively steady year-round due to the consistent climate and steady influx of military relocations, technology workers, and retirees. However, inventory levels fluctuate dramatically between coastal and inland areas, with beachfront properties maintaining extremely low supply levels while inland markets experience more typical seasonal variations in available homes.

Why Businesses Need San Diego County, California Agent Contact Data

Mortgage lenders, title companies, and real estate service providers require direct access to San Diego's extensive agent network to capture market share in this high-value market. With average transaction values significantly above national norms, establishing relationships with even a small percentage of the county's 29,242 agents can generate substantial business volume, making comprehensive agent contact databases essential for competitive positioning.

Insurance companies, home improvement contractors, and financial services firms benefit enormously from direct agent relationships, as these professionals influence client decisions across multiple high-value services. The fact that all active agents maintain email addresses enables efficient digital marketing campaigns and relationship-building efforts that can quickly scale across this large, geographically diverse professional network.

Contact Information

Brokerage
Diane Sullivan Realty

Office Website
Office Address
1021 Rosecrans St
San Diego, CA  92106
(San Diego County)
Office Phone
619-990-2297
Office Fax
Mobile
619-990-2297
Email
diane@************

Service Areas

San Diego: CA

Current Property Listings

As of 1/31/2026, Diane Sullivan has 2 properties for sale in San Diego and surrounding areas.

$1,299,995

Listed 2026-01-17

11738 Via Medanos
San Diego, CA  92128

Beds: 4.0
Baths: 2.5
Sq Ft: 1,989
Single Family Map
View Full Details

$1,625,000

Listed 2025-10-26

2533 Geranium St
San Diego, CA  92109

Beds: 3.0
Baths: 2.0
Sq Ft: 1,584
Single Family Map
View Full Details

Current Property Rentals

As of 1/31/2026, Diane Sullivan has the following rental properties available in San Diego and surrounding areas.

$2,550

Listed 2024-09-22

1021 Scott St Apt 243
San Diego, CA  92106

Beds: 0.0
Baths: 1.0
Sq Ft: 300
Condos Map
View Full Details