What San Mateo County Home Buyers Need to Know Before Signing a Purchase Contract

This is the California Residential Purchase Agreement, and signing it is how you make an offer in California. It's not paperwork that comes later. It is the offer. It governs the entire transaction, it protects you, and it binds you. If you don't understand what's in it before you sign, you're making one of the biggest financial decisions of your life without knowing what you've agreed to.

With 48 years working in real estate (as a listing manager, client services manager, operations manager, and now as a licensed agent), I've seen this document from every angle. The buyers who come out of escrow feeling confident are the ones who understood what they signed. The ones who feel blindsided almost always had the same problem: they signed where they were told without really knowing what each clause meant.

Here's what you need to know.

The California RPA Is Different From Other States

California uses one of the most comprehensive residential purchase contracts in the country. The California Association of Realtors updates it regularly, and it's designed to protect both buyers and sellers, but only if you actually use the protections it gives you.

The most important thing to understand upfront: the contract comes with built-in timelines, and those timelines are your responsibility to track. Miss a deadline, and you may waive a right you didn't even know you had. Your agent should be tracking every date on your behalf, but you should understand what those dates mean.

The Key Sections Every Buyer Must Understand

Purchase Price, Down Payment, and Loan Terms

The contract specifies your offer price, how much you're putting down, the loan amount, and the type of financing: conventional, FHA, VA, or other. If you're getting a mortgage, it will also list the maximum interest rate you're willing to accept.

This matters more than it seems. If your loan terms change significantly between signing and closing (say, rates move and your approval changes), your loan contingency may protect you, but only if it's written correctly and you act within the timeline. We'll get to contingencies in a moment.

One thing buyers often overlook: the contract distinguishes between your initial deposit, your increased deposit, and your down payment. These are three separate things with three separate timelines. Missing your increased deposit deadline, typically 3 days after contingency removal, can give the seller grounds to cancel.

The Three Contingencies That Protect You

Contingencies are conditions that must be satisfied before the sale can close. If a contingency isn't met and you exercise it correctly, you can cancel and get your deposit back. This is your safety net, and in San Mateo County's competitive market, understanding what you're giving up when you waive one is critical.

Inspection Contingency

This gives you the right to have the property professionally inspected and to cancel or renegotiate based on what you find. The default contingency period in California is 17 days, though in competitive markets, buyers often agree to shorten this to 7–10 days to strengthen their offer.

In cities like Burlingame, San Mateo, and San Carlos, many homes were built in the 1940s–1970s. Older electrical panels, original plumbing, foundation issues, and deferred maintenance are common. An inspection isn't a guarantee that nothing is wrong. It's information that lets you make an informed decision about whether to proceed and on what terms.

Do not waive your inspection contingency on an older home without doing serious due diligence first.

Loan Contingency

Even with a pre-approval letter, your loan is not guaranteed. The lender still needs to appraise the property, verify your financials, and issue a final commitment. The loan contingency protects you if financing falls through between offer acceptance and closing.

If you waive the loan contingency and your loan doesn't fund, for any reason, you can lose your entire deposit. In transactions where the deposit is 3% of a $1.5 million home, that's $45,000. I've seen buyers waive this contingency under competitive pressure without fully understanding that exposure.

Appraisal Contingency

If the property appraises for less than your purchase price, the appraisal contingency gives you options: renegotiate the price with the seller, make up the difference in cash, or cancel and recover your deposit.

In a market where homes frequently sell above asking price, appraisal gaps are real. Buyers who waive the appraisal contingency are agreeing to cover that gap out of pocket. Before you waive it, know exactly how much cash you have available and whether you're comfortable committing it.

The Earnest Money Deposit

Your deposit (typically 1–3% of the purchase price in San Mateo County) goes into escrow when your offer is accepted and is applied to your down payment at closing.

What buyers often don't focus on: the contract includes a liquidated damages clause that, if initialed by both parties, limits the seller's remedy to the deposit amount if you back out without a valid contingency. This sounds protective, and it is, to a point. But it also means the seller is entitled to keep that money if you cancel outside a contingency window without a valid reason.

Once all contingencies are removed, your deposit is genuinely at risk if you back out. That's the moment buyers need to be certain.

Seller Disclosures: Read Every One

California law requires sellers to disclose all known material facts that could affect the property's value or desirability. This is one of the strongest buyer protections in the state, and it generates a significant amount of paperwork that buyers often skim.

Don't skim it. In San Mateo County, you'll typically receive:

• Transfer Disclosure Statement (TDS): The seller's written disclosure of the property's condition, known defects, and any work done with or without permits.

• Natural Hazard Disclosure (NHD): Whether the property is in a flood zone, fire hazard zone, earthquake fault zone, or other designated area. Much of San Mateo County's hillside and coastal terrain triggers various NHD categories.

• Agent Visual Inspection Disclosure (AVID): Your agent's observations from a walkthrough of the property.

• Local city disclosures: Many San Mateo County cities have their own required disclosures covering topics like construction defects, HOA litigation, or local ordinances.

• HOA documents, if applicable: CC&Rs, bylaws, financials, meeting minutes, and any pending litigation or special assessments.

You have a contingency period to review all of this. Use it. A disclosure you ignored is not grounds for cancellation after contingencies are removed.

What Stays With the House

The contract specifies what is included in the sale. In California, anything permanently attached to the property (fixtures) generally conveys with the sale unless specifically excluded. But "permanently attached" is interpreted more narrowly than most buyers expect.

Items that have caused real disputes: built-in appliances, light fixtures, ceiling fans, window treatments, garage shelving, backyard sheds, potted plants attached to structures, and EV chargers. If it matters to you, ask your agent to include it explicitly in the contract. Verbal assurances disappear at closing.

Closing Costs

The contract establishes who pays what at closing. Some costs are customarily split in California, others fall to one party, and everything is technically negotiable.

Buyer closing costs in San Mateo County typically run 2–3% of the purchase price and include:

• Lender origination fees and points

• Appraisal fee

• Title insurance (owner's policy)

• Escrow fees

• Prepaid property taxes and homeowner's insurance

• HOA transfer fees, if applicable

Your lender is required to provide a Loan Estimate within 3 business days of your application that itemizes these costs. Review it carefully and ask questions before closing day, not at the signing table.

The Close of Escrow Date

This is the target date for ownership to transfer and keys to exchange hands. In San Mateo County, escrow typically closes 21–30 days after offer acceptance, though this is negotiable. If you need more time, or less, it can be written into the offer.

What buyers sometimes don't think about until it's too late: your move-out from your current home, your movers, and your loan funding all need to align with this date. Coordinate early. A one-day delay in loan funding can push your close date, which can create a cascade of problems if you've already scheduled movers or turned in your notice.

A Candid Word About Competitive Markets

In Burlingame, San Mateo, and San Carlos, multiple-offer situations are common on well-priced homes. Listing agents sometimes communicate, directly or indirectly, that offers with fewer contingencies are more competitive. That's true. It's also true that contingencies exist because real problems arise in real estate transactions.

The decision to waive a contingency should be based on a clear-eyed assessment of your specific situation: how thoroughly you've vetted the property, how solid your financing is, how much cash you have available if something goes wrong. It should never be based on pressure to simply make your offer look cleaner.

In 48 years working in this industry, I've seen buyers win with contingency-heavy offers and buyers lose deposits after waiving everything in a bidding war. The difference was almost always how well they understood what they were agreeing to.

After Acceptance: What the Escrow Period Looks Like

Once both parties have signed and escrow opens, you'll move through a defined sequence of steps:

• Days 1–17 (or your negotiated period): Complete inspections, review disclosure packages, secure financing, order appraisal

• Contingency removal: You formally release your contingencies in writing. This is the point of no return for your deposit

• Final walkthrough: Typically 24–48 hours before closing, to confirm the property is in the expected condition

• Signing and funding: You sign loan documents, wire your down payment and closing costs, lender funds the loan

• Recording and key transfer: The deed records with the county, and you get the keys

Your agent should have a transaction checklist and be tracking every deadline. If they're not, ask for one.

The Bottom Line

The California Residential Purchase Agreement is a well-designed document. It gives buyers meaningful protections, but only if you understand them and act within the timelines. Signing where you're told without understanding what you've agreed to is how buyers end up surprised at closing or, worse, losing their deposit.

If you're buying a home in San Mateo County and want an agent who will sit with you and go through this document until every section makes sense, not just tell you where to sign. I'd like to be that agent.