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Shannon Marie Howard-Bisordi

Shannon Marie Howard-Bisordi
Real Estate Agent (Salesperson)
Petaluma - CA

Salesperson (CA: 01387286)

23 years experience

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

About Shannon Howard-Bisordi

Shannon is a seasoned real estate professional with deep roots in the Bay Area, having grown up in Novato as a second-generation Marin resident. A graduate of San Marin High School, she furthered her education by earning a Master’s Degree in Business. Shannon entered the real estate sector in 2000 and secured her license in 2003. Throughout her career, she has gained valuable experience with prominent firms, including Vanguard Properties, RE/MAX, and Coldwell Banker. Her advanced education, combined with her expertise in business negotiation, marketing, and technology, positions her as a significant asset for her clients.

As an Accredited Staging Professional, Shannon offers comprehensive services to help clients prepare their homes for the market. This includes staging, project management, and coordinating renovations when necessary—services that are integral to the Howard Homes Group’s approach to real estate transactions.

Balancing her professional life with family commitments, Shannon identifies as a "Real Mom of Real Estate," specializing in assisting families with minimal disruption during the buying and selling process. She currently resides in Petaluma with her husband, Mark, and their two daughters, Saphie and Abigail. Shannon is dedicated to serving clients in both Marin and Sonoma Counties and values the relationships she builds with clients and fellow Realtors® alike.

Beyond her real estate endeavors, Shannon is committed to giving back to her community. The Howard Homes Group actively supports military personnel, healthcare professionals, educators, and first responders through various initiatives. Shannon is particularly passionate about youth development and, alongside Mark, serves as a foster parent while having adopted their two daughters. She is actively involved in the Waugh School District and serves on the Board of the WISE Foundation. Additionally, she leads a Girl Scout troop and participates in the Boys & Girls Clubs of Central Sonoma County. Shannon has also contributed her time and efforts to various organizations, including the American Cancer Society, Rebuilding Together Petaluma, the Junior League of Napa & Sonoma Counties, and the Santa Rosa West Rotary Club.

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

$1,545,199
Avg. Listing Price
From Shannon's portfolio
3.3 / 2.7
Avg. Beds/Baths
Typical property size
2,245 sf
Avg. Square Footage
Interior living space
884
Active Listings
Current inventory

Sonoma County's real estate market represents one of California's most dynamic and geographically diverse property landscapes, where world-renowned wine country estates meet coastal retreats and suburban family neighborhoods. With 2,847 total actively licensed agents serving the region, this market reflects both the area's prestigious reputation and its complex mix of luxury vacation properties, agricultural land, and traditional residential communities stretching from the Pacific Coast to inland valleys.

The market's sophistication is evident in its comprehensive agent network, with all 2,847 licensed professionals maintaining email connectivity, demonstrating the tech-savvy approach required to serve clients in this high-value, information-intensive market. This complete digital coverage reflects the modern demands of buyers and sellers who often include affluent out-of-area purchasers, international investors, and discerning locals navigating property transactions that frequently involve unique zoning considerations, vineyard rights, or coastal regulations.

Major Sonoma County, California Real Estate Markets

Santa Rosa dominates as the county's largest city and primary real estate hub, offering everything from historic downtown condos to sprawling suburban developments in areas like Fountaingrove and Bennett Valley. The city's recovery and rebuilding following recent wildfire challenges has created unique market dynamics, with new construction commanding premium prices while established neighborhoods show varied recovery patterns. Petaluma and Rohnert Park serve as important secondary markets, attracting families and commuters with more accessible price points and strong school districts.

The coastal corridor, anchored by Bodega Bay and Jenner, operates as a distinct luxury market focused on vacation homes and investment properties, where oceanfront parcels and coastal ridge properties command millions. Meanwhile, the wine country towns of Healdsburg, Sonoma, and Glen Ellen represent some of California's most exclusive rural residential markets, where vineyard estates and custom homes blend agricultural heritage with luxury amenities, often attracting buyers from San Francisco's tech and finance sectors.

Market Dynamics and Geographic Complexity

Sonoma County's real estate market operates across dramatically different price tiers and property types, from $500,000 starter homes in inland communities to $20+ million vineyard estates in premium appellations. This diversity creates complex cross-market dynamics where coastal property trends may not correlate with wine country patterns, and Santa Rosa's urban market operates independently of rural agricultural sales, requiring agents to develop specialized expertise in multiple market segments.

Seasonal patterns significantly influence market activity, with spring and summer months driving peak sales in wine country and coastal areas as buyers from warmer climates seek Sonoma's temperate weather and lifestyle amenities. The market also experiences unique pressures from wildfire risk assessments, with properties in certain zones facing specialized insurance requirements and disclosure obligations that create additional complexity for transactions and ongoing market valuations.

Why Businesses Need Sonoma County, California Agent Contact Data

Real estate service providers targeting Sonoma County's market require comprehensive agent contact information to effectively reach professionals handling high-value transactions across diverse property types. With agents specializing in everything from vineyard sales to coastal luxury properties, businesses offering specialized services like agricultural appraisals, luxury home staging, or wildfire mitigation consulting need direct access to relevant agent networks to build referral relationships and market their expertise effectively.

The complete email coverage among all 2,847 licensed agents enables efficient digital marketing campaigns and professional outreach, particularly valuable given the county's geographic spread and the tendency for agents to specialize in specific regions or property types. Mortgage lenders, insurance providers, property management companies, and construction services can leverage this comprehensive contact data to build targeted relationships with agents whose client bases align with their service offerings.

Contact Information

Brokerage
Vanguard Properties | Petaluma Office

Office Website
Office Address
151 Petaluma Blvd S Suit
Petaluma, CA  94952
(Sonoma County)
Office Phone
707-789-0400
Office Fax
707-789-0300
Mobile
707-338-2712
Email
shannon@************

Service Areas

San Luis Obispo: CA Avila Beach: CA Los Osos: CA Sn Luis Obisp: CA American Canyon: CA Calistoga: CA Spanish Flat: CA Oakville: CA Silverado Resort: CA Napa: CA Yountville: CA Moskowite Corner: CA Rutherford: CA Vallejo: CA San Rafael: CA Santa Venetia: CA Sleepy Hollow: CA Lucas Valley-Marinwood: CA Greenbrae: CA Kentfield: CA Larkspur: CA Rohnert Park: CA Cotati: CA Penngrove: CA Black Point-Green Point: CA Novato: CA Bloomfield: CA Petaluma: CA Valley Ford: CA Tomales: CA Glen Ellen: CA Santa Rosa: CA Fulton: CA Larkfield: CA Larkfield-Wikiup: CA Windsor: CA El Verano: CA Healdsburg: CA Graton: CA Occidental: CA Sebastopol: CA Freestone: CA Eldridge: CA Fetters Hot Springs-Agua Caliente: CA Temelec: CA Vineburg: CA Boyes Hot Springs: CA Sonoma: CA Petrolia: CA

Current Property Listings

As of 1/31/2026, Shannon Howard-Bisordi has 2 properties for sale in Petaluma and surrounding areas.

$589,000

Listed 2026-01-14

1378 Mission Dr
Sonoma, CA  95476

Beds: 2.0
Baths: 2.0
Sq Ft: 1,008
Lot: 1,742 sf
Single Family Map
View Full Details

$635,000

Listed 2026-01-05

1833 Janero Dr
Santa Rosa, CA  95407

Beds: 3.0
Baths: 1.5
Sq Ft: 1,187
Lot: 6,800 sf
Single Family Map
View Full Details

Current Property Rentals

Shannon Howard-Bisordi currently has no rental properties available in Petaluma and surrounding areas. Check back later.