Robert Jerome Costello

Robert Jerome Costello
Real Estate Agent (Salesperson)
San Diego CA

Salesperson (CA: 01049347)

37 years experience

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

Contact Information

Brokerage
Keller Williams Realty

Office Website
Office Address
13400 Sabre Springs Pkwy Ste 100
San Diego, CA  92128
(San Diego County)
Office Phone
858-668-2804
Office Fax
858-668-2812
Mobile
619-252-7053
Email
rcostello1@gmail.com

Service Areas

Rancho San Diego: CA Spring Valley: CA Casa de Oro-Mount Helix: CA La Mesa: CA San Diego: CA Carlsbad: CA La Costa: CA Crest: CA El Cajon: CA Jamul: CA Granite Hills: CA Alpine: CA Harbison Canyon: CA Escondido: CA Poway: CA San Diego Country Estates: CA Ramona: CA San Marcos: CA Santee: CA Lake San Marcos: CA Elfin Forest: CA Fairbanks Ranch: CA Rancho Santa Fe: CA Temecula: CA Walnut Creek: CA Contra Costa Centre: CA Acalanes Ridge: CA

About Robert Costello

Rob Costello brings over three decades of expertise in the San Diego real estate market. A distinguished Graduate of the Real Estate Institute (GRI), he has earned recognition as one of San Diego Magazine's Top Residential Real Estate Agents. His credentials include CDPE certification, highlighting his proficiency in distressed properties, where he has successfully negotiated and closed numerous short sales and REO transactions with major national lenders.

In addition to his residential focus, Rob possesses extensive experience in commercial real estate, specializing in the sale and management of apartment hotels, office spaces, and retail properties. He is well-versed in IRS Section 1031 Tax Deferred Exchanges and estate and trust sales, ensuring that his clients receive informed guidance tailored to their specific needs.

Rob's comprehensive understanding of the real estate process allows him to facilitate smooth transactions for both buyers and sellers. His commitment to professionalism and client satisfaction consistently enhances the real estate experience.

For those seeking a dedicated agent to navigate their real estate journey, Rob Costello is poised to exceed expectations.

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

$1,881,122
Avg. Listing Price
From Robert's portfolio
3.7 / 3.1
Avg. Beds/Baths
Typical property size
2,484 sf
Avg. Square Footage
Interior living space
4315
Active Listings
Current inventory

If you need to reach working real estate agents in San Diego County, this list was built for you. Mortgage lenders prospecting for referral partners, title and escrow companies building agent relationships, PropTech platforms looking for early adopters, insurance providers offering E&O or home warranty products, continuing education providers, and recruiters looking to grow their brokerages are all regular buyers of this data. These professionals need verified, deliverable contact information — not outdated spreadsheets scraped from public directories.

When you buy San Diego County real estate agent email list data from Dr. Bill, you get {{AGENT_COUNT}} actively licensed agents with verified email addresses, plus {{CELL_COUNT}} agents who also have cell phone numbers on file. Whether you're running a drip campaign, dialing for referrals, or segmenting your outreach by city or zip code, this list gives you the reach and precision to make your marketing budget work harder than a generic statewide blast ever could.

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This data is sourced directly from the California Department of Real Estate licensing records and cross-verified through multiple channels before it ever reaches your inbox. New emails are added weekly, the full list is cleaned monthly to remove bounces and inactive licenses, and the entire database is completely refreshed bi-annually. The result is a 96% deliverability guarantee — a standard that cheap list brokers simply cannot match because they are recycling old data without any systematic maintenance process.

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The most immediate use is email outreach through cold-email platforms. Zap Contact (zapcontact.com) is purpose-built for this type of B2B prospecting and works seamlessly with this list format. You can also use the data for direct mail campaigns, SMS or phone outreach using the cell phone records, or upload the emails into LinkedIn for matched audience advertising. Each channel compounds the others when you're running a coordinated campaign.

The list can be segmented by broker versus sales agent status, allowing you to target decision-makers at the office level separately from individual producers. This matters if you're pitching a platform that requires broker approval versus a product agents can adopt independently.

Why San Diego County, California Agent Data Matters

San Diego County spans a wide range of distinct markets — from coastal communities like La Jolla, Encinitas, and Coronado to inland areas like El Cajon, Santee, Chula Vista, and Escondido. Agents working Carlsbad are serving a very different client than agents working National City, and your messaging should reflect that. With {{AGENT_COUNT}} active licensed agents across the county, there is a substantial professional audience here that rewards precise, relevant outreach.

No other vendor offers zip code level segmentation within San Diego County — most will sell you a statewide California list and call it targeted. Dr. Bill's data lets you isolate specific zip codes, cities, or the full county depending on where your business operates. That granularity turns a generic email blast into a localized campaign that actually converts.

Current Property Listings

As of 6/27/2026, Robert Costello has 2 properties for sale in San Diego and surrounding areas.

$1,595,000

Listed 2026-06-04

8933 Hampe Ct
San Diego, CA  92129

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

$535,000

Listed 2026-05-23

5513 Adobe Falls Rd Unit 5
San Diego, CA  92120

Beds: 3.0
Baths: 2.0
Sq Ft: 1,120
Condo Map
View Full Details

Current Property Rentals

Robert Costello currently has no rental properties available in San Diego and surrounding areas. Check back later.