Daniel P Casabonne

Daniel P Casabonne
Real Estate Agent (Salesperson)
Sonoma CA

Salesperson (CA: 01221013)

29 years experience

REALTOR® 5 Active Listings Serves Sonoma County, CA
View on Realtor.com

Contact Information

Brokerage
Sotheby's International Realty

Office Website
Office Address
428 1st St E
Sonoma, CA  95476
(Sonoma County)
Office Phone
707-939-4460
Office Fax
707-939-2225
Mobile
707-939-2222
Email
daniel@casabonnerealestate.com

Service Areas

Boyes Hot Springs: CA Eldridge: CA El Verano: CA Glen Ellen: CA Kenwood: CA Fetters Hot Springs-Agua Caliente: CA Temelec: CA Vineburg: CA Sonoma: CA

About Daniel Casabonne

Daniel Casabonne stands out as a distinguished real estate professional with a remarkable global reputation. He has consistently been recognized as one of the leading agents in both Sonoma Valley and Sonoma County. His success can be attributed to his ability to cater to a diverse range of clients, representing both buyers and sellers across various price points.

Currently ranked as the 11th individual agent affiliated with Sotheby's International Realty Inc., Daniel also holds the 21st position among individual agents within the entire NRT brand. Since joining Sotheby's, he has achieved a ranking within the top half of 1 percent of over 42,000 sales associates. In 2018, The Wall Street Journal acknowledged him as the 123rd "Top Agent" in the United States, while Real Trends recognized him as the 40th best agent in California. Additionally, the Luxury Marketing Council named him one of the "Top 50 Agents" in the Bay Area.

A significant portion of Daniel's clientele comes from referrals, a testament to his commitment to building lasting relationships. He approaches each client interaction with a familial mindset, emphasizing the importance of long-term connections beyond individual transactions.

Throughout his career, Daniel has facilitated countless successful transactions, earning numerous industry accolades and designations along the way.

**Recent Accomplishments:**
- Nearly $1 billion in sales.
- Ranked 123rd among all agents in the United States by The Wall Street Journal.
- Ranked 40th among agents in California by Real Trends.
- Ranked 11th among Sotheby's International Realty agents.
- Ranked 26th by sales volume in The Leading 100, as featured in Real Trends.
- Recognized in the top half of 1 percent of all real estate agents nationwide by The Thousand ranking from The Wall Street Journal.
- Achieved the title of "Most Homes Sold in Sonoma Valley" annually since 2002.
- Recognized as Sonoma County’s highest-producing agent in dollar volume since 2010.
- Awarded "Best Realtor in Sonoma Valley" by KVON 1440 AM & 99.3 FM The Vine Annual Survey.
- Voted "Best Realtor" in the People's Choice Awards every year since the award's inception.
- Named a 2018 Neighborhood Favorite on Nextdoor.com for favorite real estate agent.

In addition to his professional achievements, Daniel is deeply committed to philanthropy, generously supporting various organizations and initiatives within Sonoma Valley and beyond. His contributions include sponsorships and donations to the Sonoma Valley Mentoring Alliance, Sonoma Valley Museum of Art, Friends in Sonoma Helping (F.I.S.H.), LaLuz, Greenbelt Alliance, Home for a Home, Sonoma International Film Festival, Sonoma Valley Youth Soccer Association, Presentation School Scholarships, Education Scholarships, Sonoma Community Center, Quarry Hill Botanical, and many more.

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

$1,698,979
Avg. Listing Price
From Daniel's portfolio
3.2 / 2.7
Avg. Beds/Baths
Typical property size
2,288 sf
Avg. Square Footage
Interior living space
1235
Active Listings
Current inventory

When businesses need to reach working real estate agents in Sonoma County, a verified agent email list is the fastest way in. Mortgage lenders use it to introduce loan programs directly to agents who can send referrals. Title companies use it to pitch closing services. PropTech companies use it to demo software. Recruiters use it to poach top producers. Insurance providers and continuing education companies rely on it to put offers in front of a captive licensed audience that has ongoing professional obligations and purchasing needs.

This list covers every actively licensed real estate agent operating in Sonoma County, California — {{AGENT_COUNT}} agents total, with {{CELL_COUNT}} cell phone numbers included for campaigns that go beyond email. Whether you are running a cold email sequence, a ringless voicemail drop, or building a custom audience for LinkedIn matched targeting, this data gives you the reach to do it right. Buying a Sonoma County real estate agent email list from a source that actually maintains the data is what separates a campaign that converts from one that bounces into a void.

Why Buy a Sonoma County Real Estate Agent Email List From Dr Bill

Every record in this list is sourced directly from the California Department of Real Estate licensing database, cross-referenced against active license status, and verified for email deliverability. The list is refreshed with new agents added weekly, scrubbed monthly to remove bad addresses, and completely rebuilt from source data bi-annually. That process is why we back this list with a 96% deliverability guarantee — something no discount data vendor can honestly offer because they are not doing the maintenance work behind it.

Dr Bill has been in the list business since 2005 and has sold over 31,000 lists. That track record matters when you are putting budget behind an outreach campaign. Cheap alternatives recycle stale data and sell the same unverified file to everyone. This list is available at the state, county, city, and zip code level — and no other vendor segments agent data down to individual zip codes within Sonoma County the way we do. That granularity lets you target precisely instead of over-mailing.

How to Use This Sonoma County Agent List

Email outreach is the primary use case, and this list plugs directly into cold-email platforms built for high-volume prospecting. Zap Contact at zapcontact.com is purpose-built for this kind of campaign and works seamlessly with the file format we deliver. You can also use the data for direct mail, SMS, or phone outreach using the included cell numbers, and import the emails into LinkedIn for matched audience ad targeting that reinforces your cold outreach.

The list can be segmented by broker versus individual sales agent, letting you pitch broker-owners differently than rank-and-file agents. A recruiting firm targets those segments with completely different messaging. So does a CE provider versus a mortgage lender. That flexibility makes one list usable across multiple campaigns without buying new data each time.

Why Sonoma County, California Agent Data Matters

Sonoma County covers a wide geographic footprint that includes Santa Rosa, Petaluma, Rohnert Park, Windsor, Healdsburg, Sebastopol, Sonoma, and Cotati. Agents working these markets are distinct from agents in San Francisco or the East Bay, and a statewide blast treats them the same — which wastes budget and dilutes relevance. Local targeting means your message speaks to the market conditions and community that Sonoma County agents actually operate in every day.

With {{AGENT_COUNT}} actively licensed agents in the county carrying verified email addresses, and {{CELL_COUNT}} of them reachable by phone, you have meaningful scale without paying for a statewide file you do not need. Zip-code-level filtering lets a Petaluma title company ignore Santa Rosa agents entirely, or a lender target only the highest-density zip codes first. That kind of precision is only possible when the underlying data is built and maintained the right way — which is exactly what this list delivers.

Current Property Listings

As of 6/27/2026, Daniel Casabonne has 5 properties for sale in Sonoma and surrounding areas.

$1,500,000

Listed 2025-09-11

532 Studley St
Sonoma, CA  95476

Beds: 9.0
Baths: 6.5
Sq Ft: 5,418
Lot: 22,499 sf
Multi Family Map
View Full Details

$2,195,000

Listed 2025-09-12

1090 Bart Rd
Sonoma, CA  95476

Beds: 3.0
Baths: 2.5
Sq Ft: 2,589
Lot: 285,754 sf
Single Family Map
View Full Details

$2,850,000

Listed 2025-10-07

151 E Napa St
Sonoma, CA  95476

Beds: 6.0
Baths: 6.0
Sq Ft: 3,897
Lot: 9,912 sf
Multi Family Map
View Full Details

$1,295,000

Listed 2026-02-26

468 Mountain Ave
Sonoma, CA  95476

Beds: 3.0
Baths: 2.0
Sq Ft: 2,163
Lot: 13,800 sf
Single Family Map
View Full Details

$7,500,000

Listed 2026-03-05

1500 Morningside Mtn Rd
Glen Ellen, CA  95442

Beds: 3.0
Baths: 4.0
Sq Ft: 6,018
Lot: 386,377 sf
Single Family Map
View Full Details

Current Property Rentals

Daniel Casabonne currently has no rental properties available in Sonoma and surrounding areas. Check back later.