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Sarah Newmarker buyer's agent for 116 Barn Rd, Belvedere Tiburon, CA - sold for $4,500,000
Sold $4,500,000
Sarah Newmarker listing agent for 224 Magee Ave, Mill Valley, CA - sold for $3,400,000
Sold $3,400,000
Sarah Newmarker buyer's agent for 224 Magee Ave, Mill Valley, CA - sold for $3,200,000
Sold $3,200,000
Sarah Newmarker listing agent for 15 Deer Park Ln, Fairfax, CA - sold for $2,825,000
Sold $2,825,000
Sarah Newmarker listing agent for 3431 Saint Helena Hwy N, Saint Helena, CA - sold for $2,340,000
Sold $2,340,000
Sarah Newmarker listing agent for 1206 Spring St, Calistoga, CA - sold for $1,717,881
Sold $1,717,881

Sarah Newmarker

Mill Valley CA
Coldwell Banker Realty
20 Closed Sales
$31.4M Total Value
$550K - $4.5M Price Range
$1.6M Average Price
Prior 5 years

About Sarah

Sarah Newmarker
Top Producing Realtor | Coldwell Banker | Marin County
For more than 15 years, Sarah Newmarker has been one of Marin’s most trusted real estate advisors. A top producer with Coldwell Banker Realty, Sarah’s business is built entirely on referrals—a reflection of the loyalty and trust she inspires among her clients.
Known for her sharp market insight and unrelenting advocacy, Sarah blends data-driven strategy with a human touch. She’s highly responsive, detail-oriented, and deeply committed to delivering an exceptional experience from the first conversation to closing—and beyond.
Sarah’s deep understanding of Marin’s markets allows her to anticipate trends and guide clients through complex negotiations with clarity and confidence. Her approach is rooted in integrity, preparation, and genuine care—qualities that have earned her long-term relationships and consistent, record-setting results.
As a mother of two young boys, Sarah’s appreciation for Marin runs deep. Parenthood has strengthened her connection to the importance of schools, community, and natural beauty. An avid trail runner, she finds balance and inspiration on the same trails that make this such a special place to call home.
Home Types: House, Commercial, Condo, Townhouse
Languages Spoken: English, French
Years of Experience: 16

Transaction History

Seller Deals

Total Deals 1
Total Value $3,400,000
Average Sale Price $3,400,000

Buyer Deals

Total Deals 2
Total Value $2,185,000
Average Sale Price $1,092,500
Price Range $690K - $1.5M

Seller Deals

Total Deals 1
Total Value $3,400,000
Average Sale Price $3,400,000

Buyer Deals

Total Deals 3
Total Value $6,685,000
Average Sale Price $2,228,333
Price Range $690K - $4.5M

Seller Deals

Total Deals 9
Total Value $14,071,881
Average Sale Price $1,563,542
Price Range $550K - $3.4M

Buyer Deals

Total Deals 11
Total Value $17,325,000
Average Sale Price $1,575,000
Price Range $650K - $4.5M

Production Over Time

5 Year View

Sarah's Listings and Deals

Awards and Designations

  • Top REALTOR®
  • NAR - National Association of Realtors

Other Experience

First Time Homebuyers, Luxury Homes
Agent License: California #01960859

Frequently Asked Questions

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Agent Photo

Sarah Newmarker

(628) 288-4859
(628) 288-4859

Nearby Homes