The Complete Guide to Buying a Home in San Mateo County: What You Need to Know

Raziel Ungar

Raziel Ungar

January 23rd, 2025 - 5 min read

The Complete Guide to Buying a Home in San Mateo County: What You Need to Know

Let me take you through one of the most important decisions you'll make in the Bay Area - buying a home in San Mateo County. As someone who's closed over 600 home sales and reviewed thousands of disclosure packages, I can tell you that this market is unlike any other. From historic properties needing extensive maintenance to homes affected by SFO flight paths, buying here requires insider knowledge that most people don't have access to.

The Reality of Older Homes in SMC (And What It Means for You)

Let's talk about something that might surprise you: San Mateo County has some of the oldest housing stock in the entire Bay Area. What does this mean for your home purchase? Well, it's not just about character and charm - it's about understanding what lies beneath those beautiful hardwood floors and classic architectural details.

In my experience reviewing thousands of homes, most properties have some kind of foundation issue. I've seen it all - from minor settling to foundations that didn't even extend below the soil line (yes, that actually happened). This is why getting a thorough structural inspection isn't just recommended - it's essential. And if you're selling, consider a floor-level survey to address buyer objections upfront.

Health and Safety: What Your Agent Might Not Tell You

Think asbestos is a thing of the past? Think again. In San Mateo County's older homes, it's surprisingly common, especially in ductwork and those charming popcorn ceilings. I once helped a seller in Burlingame abate asbestos pre-sale—a step that ultimately helped the home sell faster and for more money.

Pest problems are another major concern. Rodents, termites, and other pests are surprisingly common. I’ve worked with clients in Hillsborough who were shocked to find rodents in their crawl spaces. Termites, in particular, are something I see frequently on pest reports. The question isn’t if but when and how much it will cost to address these issues—expect repairs to range between $3,000 and $10,000 for most homes that aren’t brand new.

Want to Know the Real Cost of Ownership?

Here's something that might surprise you: the purchase price is just the beginning. In San Mateo County, you need to think about:

  • Regular structural maintenance (especially for older homes)

  • Yearly HVAC inspections and maintenance

  • Sewer lateral requirements in cities like Burlingame, San Mateo, and Belmont

  • Special assessments for condos, which can run into thousands

For instance, I once worked with a buyer in Burlingame whose sewer line passed inspection at the time of sale but failed catastrophically just one week later, resulting in a $20,000 repair bill.

Location Matters (More Than You Think)

Ever wondered why some homes in San Mateo County sell for significantly less than their neighbors? Often, it comes down to location factors that might not be obvious during a quick showing:

  • SFO flight paths: Noise levels can vary depending on weather patterns. Living under a flight path in places like Millbrae or Burlingame might be tolerable for some but not for others.

  • Proximity to highways: Homes near 101 or 280 often face constant noise, dust, and even vibrations from traffic.

  • Flood zones and natural disaster exposure: FEMA-designated high-risk areas, high fire hazard zones, and liquefaction zones can add financial and safety risks.

  • Busy streets: A charming home on a high-traffic road might seem minor at first, but it can affect your quality of life and resale value.

Hidden Hazards in SMC Homes

Beyond location and maintenance, there are hidden risks in SMC homes that can catch buyers off guard:

  • Drainage problems: Homes on hills or with crawl spaces may need sump pumps to manage water flow. It’s a fixable issue, but it’s important to know the costs upfront.

  • Mold: Rare, but it’s something I’ve encountered. Mold remediation can be costly, especially if it’s extensive.

Condos: Know Before You Buy

Condos can be a great option for buyers looking for low-maintenance living, but they come with their own set of challenges:

  • HOA fees: These can range from $400 to over $1,000 per month in cities like Burlingame or Foster City.

  • Special assessments: If the building needs major repairs (e.g., a new roof or plumbing system), owners can face one-time fees ranging from $5,000 to $20,000 or more.

  • Poorly managed HOAs: Maintenance delays and low reserve funds can significantly impact your living experience and property value. Always request the HOA’s financial statements before committing.

Final Thoughts

Buying a home in San Mateo County isn’t just about finding a property you love. It’s about understanding the risks, asking the right questions, and making a truly informed decision. With over 600 successful home sales under my belt, I’m here to help guide you through the process and protect your investment.

If you’re ready to take the next step or just want to learn more about the SMC housing market, don’t hesitate to reach out. And before you go, check out our video on the best and worst cities in SMC for even more local insights!

Frequently Asked Questions

What are the most common issues in San Mateo County homes?

Foundation problems, older plumbing systems, and asbestos in older homes are the most frequent concerns buyers face.

How much should I budget for maintenance in San Mateo County?

Annual maintenance costs typically range between $5,000-15,000, depending on the home's age and condition.

Are sewer lateral inspections mandatory in San Mateo County?

Yes, in cities like Burlingame, San Mateo, and Belmont, sewer lateral inspections are often required at the point of sale or within a specific timeframe.

How can I identify a poorly managed HOA in a condo?

Request the HOA’s financial statements and look for low reserve funds or a history of special assessments. Poor management can lead to costly repairs and reduced property value.

What should I look for in a home inspection report?

Focus on foundation issues, pest damage, and the condition of major systems like HVAC and plumbing.

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