Top Realtors and Real Estate Agents in Castro Valley, CA
Rankings based on verified MLS transaction data. Last updated June 2026. No pay-to-play.
Top Agent
Top 0.11%
in Castro Valley, CA
$1.3B
All-Time Sales
$650K - $5M
Price Range
5%
Negotiated Off List
Top AgentTop 0.67%
in Castro Valley, CA
$236.5M
All-Time Sales
$640K - $2.8M
Price Range
3%
Negotiated Off List
Top AgentTop 1.01%
in Castro Valley, CA
$219.8M
All-Time Sales
$600K - $2.8M
Price Range
Top AgentTop 1.57%
in Castro Valley, CA
$1.12B
All-Time Sales
$750K - $4.9M
Price Range
4%
Negotiated Off List
Top Agent
(73)
Carol Sawdey
Berkshire Hathaway HomeServices Drysdale Properties
18 Years of experience
32+ Sales in the last 12 months
Top 2.92%
in Castro Valley, CA
$435.9M
All-Time Sales
$830K - $6M
Price Range
3%
Negotiated Off List
Top AgentTop 4.5%
in Castro Valley, CA
$33.2M
All-Time Sales
$660K - $1.7M
Price Range
Top AgentTop 4.95%
in Castro Valley, CA
$45.5M
All-Time Sales
$850K - $2.1M
Price Range
Top AgentTop 5.62%
in Castro Valley, CA
$77.5M
All-Time Sales
$910K - $6.3M
Price Range
Top AgentTop 5.85%
in Castro Valley, CA
$36.7M
All-Time Sales
$1.2M - $4.3M
Price Range
Top AgentTop 5.96%
in Castro Valley, CA
$73.5M
All-Time Sales
$670K - $2.5M
Price Range
Top AgentTop 6.07%
in Castro Valley, CA
$730.9M
All-Time Sales
$1M - $4.5M
Price Range
Top Agent(19)
Tomaj Trenda
Golden Gate Sotheby's International Realty
21 Years of experience
11+ Sales in the last 12 months
Top 6.97%
in Castro Valley, CA
$76.2M
All-Time Sales
$570K - $2M
Price Range
Castro valley Housing Market Trends
Median Sale Price
$1,183,356
-5.00% year-over-yearMedian Days on Market
13
-1 day year-over-yearSale-to-List Price
104.81%
+2.19% year-over-yearHomes Sold Above List Price
63.1%
+0.1% year-over-yearOff the Market in 2 Weeks
49.4%
+4.2% year-over-yearListings With Price Drops
18.5%
-11.9% year-over-yearMonths of Supply
1.4
Realtors in Castro valley
889
Verified MLS market data through June 2026.
When Is the Best Time to Sell a House in Castro Valley?
Based on the last 24 months of verified MLS market data, homes in Castro Valley sell fastest and closest to asking when they go under contract in March. To hit that window, plan to list around March.
Median days on market by month (shorter is faster)
March
Best month to sell
12 days
Typical time on market
104%
Of asking price
Seasonal averages from the last 24 months of Castro Valley, CA sales. Individual results vary with price, condition, and how the broader market moves. A local agent can pinpoint the right timing for your home.
What These Numbers Mean for Castro Valley Buyers and Sellers
The Housing Market Trends module above frames a market where sellers currently hold most of the leverage. With 63.1% of homes selling above list price and a sale-to-list ratio of 104.81%, buyers in Castro Valley are routinely competing past the asking figure rather than negotiating beneath it. That pressure is reinforced by just 1.4 months of supply and 49.4% of listings leaving the market within two weeks, both signals of demand outpacing the 56 active listings available. Median sale price sits at $1,183,356, having moved -5.0% year over year, while the median home spends 13 days on market. For a buyer, this combination means an offer near list price will rarely be competitive; leading with a clean, well-structured bid and clear financing tends to matter more than a marginally higher number. The one counterweight worth noting is that 18.5% of listings recorded a price cut, evidence that homes priced ahead of the market still stall and create openings for patient buyers. For a seller, the data argues for pricing at or slightly under recent comparable sales to trigger the multiple-offer dynamic rather than testing an aspirational number that invites a reduction. With 41 homes sold and 127 pending in the latest month against 145 new listings, absorption remains brisk. Navigating a market this fast rewards local execution, and Castro Valley is served by 889 licensed agents whose results vary widely. The sections below explain how EffectiveAgents narrows that field to the agents with verified transaction records in zip codes 94546 and 94552.
What Castro Valley Home Prices Mean for You
Understanding the true cost of homeownership in Castro Valley goes beyond the listing price. These calculators break down what today's market conditions mean for your budget, your timeline, and your negotiating position.
| Median home price | $1,183,356 |
| Down payment (20%) | $236,671 |
| Loan amount | $946,685 |
| Monthly payment (PITI) | $7,511 |
Based on 28% debt-to-income ratio, 6.69% mortgage rate (as of August 6, 2026), 30-year fixed loan, 1.15% property tax rate, $275/mo insurance. Actual requirements vary by lender.
Based on $1,183,356 median home price with 20% down at 6.69% (as of August 6, 2026) for 30 years. Property tax estimated at 1.15% of home value.
Year-over-year data reflects the most recent rolling period from Castro Valley MLS records. Prior year values calculated from current figures and published YoY changes.
What to Look for in a Castro Valley Realtor
Choosing an agent on name recognition alone can obscure what actually matters in a market moving at 13 days: a verified record of closing homes at strong terms. EffectiveAgents ranks 39 agents in Castro Valley from the broader pool of 889 licensed professionals, using transaction history rather than advertising spend. The current top-ranked agent, Jon Foster at eXp Realty, has closed 1,586 transactions with $1.3B in all-time sales volume, a depth of experience that translates into practical negotiating judgment when 63.1% of homes clear above asking. In tightly contested zip codes like 94546 and 94552, that judgment shows up in structuring offers that win without overpaying and in pricing listings to trigger competition rather than a price drop, a risk affecting 18.5% of current listings. Review patterns matter as much as raw counts: Jon Foster carries 385 reviews, and consistent feedback across many closings is a more reliable signal than a handful of glowing testimonials. Look for agents whose reviews describe repeatable process and communication, not one-off outcomes.
How We Rank Castro Valley Real Estate Agents
Our rankings are built from verified MLS transaction data, not advertising spend. For every agent we analyze more than fifteen performance signals, including sales volume in your city and zip code, recent and all-time transactions, days on market, negotiation results (how far above or below list price an agent's clients actually close), price-point fit, and verified reviews. The agents shown first are those whose verified results put them at the top of the Castro Valley market today.
Agents cannot pay for placement in these rankings. The underlying data refreshes as new closed transactions are reported, so rankings shift with real market performance. Learn how we rank agents.
Rankings reviewed by Kevin Stuteville, Licensed Florida Real Estate Broker (License BK3068131), Founder of EffectiveAgents.
Data last updated: June 2026
Castro Valley Real Estate Agent FAQs
Who is the best real estate agent in Castro Valley, CA?
The top-ranked agent in Castro Valley, CA is currently Jon Foster at eXp Realty, with 1,586 closed transactions, 385 reviews, and $1.3B in all-time sales volume. EffectiveAgents identifies leading agents by analyzing verified transaction records, closing outcomes, and client review patterns rather than advertising. Of the 889 licensed agents serving Castro Valley, only 39 meet the ranking threshold. The best agent for you depends on your price point and timeline, so compare several ranked matches before deciding.
How were these Castro Valley real estate agents ranked?
Rankings are built from verified MLS transaction data. We analyze more than fifteen performance signals for every agent, including sales volume in your city and zip code, recent and all-time transactions, days on market, negotiation results, price-point fit, and verified reviews. Agents cannot pay for placement.
How many real estate agents are in Castro Valley?
Our data covers 889 real estate agents serving the Castro Valley area. The count represents agents with transaction activity recorded in our Castro Valley market data, not simply everyone holding a license.
What does the median sale price in Castro Valley mean for sellers?
Castro Valley's median sale price is $1,183,356 as of June 2026. Half of recent sales closed above that figure and half below. It is a useful baseline for understanding the market, but an experienced local agent will price your home against comparable recent sales in your neighborhood, not the citywide median.
How long does it take to sell a house in Castro Valley?
In Castro Valley, the median home currently sells in about 13 days, and 49.4% of listings go under contract within two weeks. With only 1.4 months of supply and 63.1% of homes selling above list, well-priced properties move quickly. Your actual timeline depends on pricing relative to recent comparable sales, condition and staging, and the specific zip code. Homes priced ahead of the market are more likely to sit and require a reduction, so accurate initial pricing is the biggest factor in a fast sale.
Does it cost anything to use EffectiveAgents?
No. EffectiveAgents is free for home buyers and sellers, with no obligation to work with any agent we match you with.
Do agents pay to be ranked or featured?
No. Agents cannot pay for placement anywhere in these rankings. Positions are earned from verified transaction performance only.
What commission do Castro Valley realtors charge?
Commissions are negotiable and vary by agent, service level, and transaction. There is no set rate, and recent industry changes have made commission structures more flexible than ever. Discuss the structure directly with your agent before signing a listing or buyer agreement.
Should I use a local Castro Valley agent or a national brand?
The individual agent matters more than the brand on the sign. Offices within the same national franchise vary widely in performance, and the agent you hire, not the logo, prices your home, negotiates your contract, and manages your closing. A strong local agent brings firsthand knowledge of Castro Valley neighborhoods, pricing patterns, and buyer activity. Compare agents on verified local results such as recent sales, days on market, and negotiation outcomes rather than name recognition.
What questions should I ask a Castro Valley realtor before hiring them?
Ask how many homes they have closed in Castro Valley in the past year, what their average sale-to-list ratio is, and how much of their business is in your neighborhood and price range. Ask how they will market your home or find you listings, and how often they will communicate. Strong agents answer with specifics. Verified transaction data is the fastest way to confirm what you hear.
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