Peninsula Real Estate Guide
Dual Agency on the Peninsula: What Buyers Should Know Before Contacting the Listing Agent
It’s legal in California, but it changes who is actually negotiating on your behalf
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Legal In California, With Consent |
Form AD Required Written Disclosure |
Closer to List What Dual-Agency Buyers Often Pay |
Your Choice You Can Decline It |
Calling the number on the sign in front of a home you love feels natural, but doing so, especially in a fast-moving Peninsula market, can put you into a dual agency relationship without you fully realizing what you’ve agreed to. Understanding how this works before you make that call is worth five minutes of reading.
What Dual Agency Actually Means
Dual agency happens when one agent, or two agents under the same broker, represents both the buyer and the seller in the same transaction. It’s legal in California under Civil Code Sections 2079.16 through 2079.19, but only with informed, written consent from both parties, delivered through a standard form known as the Disclosure Regarding Real Estate Agency Relationships, or Form AD.
The California Supreme Court Case That Changed the Rules
In a landmark case, Horiike v. Coldwell Banker, California’s Supreme Court clarified that when a broker acts as a dual agent, every associate agent working under that broker owes fiduciary duties to both the buyer and the seller, even when different individual agents are handling each side of the deal. This ruling significantly raised the legal stakes around how brokerages structure and disclose these situations.
The Practical Downside for Buyers
A dual agent cannot advocate as aggressively for either side, because doing so would work against the fiduciary duty owed to the other party. In practice, this most often shows up as buyers in dual agency situations paying closer to full asking price, since the agent legally cannot help craft or advise on a strategic lower offer the way a buyer’s exclusive agent could. The agent also cannot disclose confidential information from either side, which limits how much real negotiating insight either party actually gets.
Your Options as a Buyer
| Ask directly whether the listing agent would become a dual agent if you write an offer through them |
| You can decline dual agency and instead bring your own buyer’s agent to represent you exclusively |
| If you do proceed with dual agency, understand it in writing before signing anything, not after |
| A separate real estate attorney can advocate for you specifically if a transaction involves dual agency |
Key Takeaway
Dual agency isn’t inherently improper, but it structurally limits how hard anyone can negotiate on your behalf. On the Peninsula’s competitive listings, that’s worth knowing before you’re the one calling the sign.
Frequently Asked Questions
Is dual agency legal in California?
Yes, but only with informed written consent from both the buyer and the seller.
Do I have to accept dual agency if I contact the listing agent?
No, you can decline and bring your own buyer’s agent instead, at no additional cost to you in most cases.
Does dual agency cost buyers money?
Not directly in fees, but buyers in dual agency situations often end up paying closer to list price due to limited negotiation advocacy.
What if two different agents at the same brokerage represent each side?
Under the Horiike ruling, both agents can still owe fiduciary duties to both parties, so it’s worth asking directly how your specific brokerage handles this.
| Related Reading | |
| Escalation Clauses and Backup Offers | Strong negotiation tools that depend on having a dedicated advocate. |
| A First-Time Homebuyer Guide for the Peninsula in 2026 | Understand the basics of representation before you start touring homes. |
| How Long Do Homes Take to Sell in San Carlos, CA? | See how fast you may need to move, and why representation matters early. |
| Selling a Home is NOT a DIY Project | The seller-side case for dedicated representation. |
Want an Agent Who Represents You, and Only You?
I’m happy to represent you exclusively as your buyer’s agent on any listing you find, including my own.
Holly Noto | Coldwell Banker Realty | DRE#01244498, DRE#01908304
580 El Camino Real, San Carlos, CA 94070
650.544.6185 | [email protected]
This content reflects California Civil Code Sections 2079.16 through 2079.19 and general 2026 legal guidance, and is not legal advice. Consult a real estate attorney with questions about your specific transaction.
