Menu

Leave a Message

By providing your contact information to Stephanie Nash, your personal information will be processed in accordance with Stephanie Nash's Privacy Policy. By checking the box(es) below, you expressly consent to receive marketing or promotional real estate communication from Stephanie Nash in the manner selected by you. For SMS text messages, message frequency varies. Message and data rates may apply. Consent is not a condition of purchase of any goods or services. You may opt out of receiving further communications from Stephanie Nash at any time. To opt out of receiving SMS text messages, reply STOP to unsubscribe. SMS text messaging is subject to our Terms of Use.

Thank you for your message. We will be in touch with you shortly.

What to Consider When Eyeing a Charming Home in Historic Districts in San Mateo

09/7/26  |  Stephanie Nash

Real Estate in Historic Districts San Mateo Buyers Should Know Before Making an Offer.


By Stephanie Nash

I get asked constantly about real estate in historic districts San Mateo has to offer, usually from buyers who've fallen for an older home's character and want to know what they're actually signing up for. Historic doesn't mean off-limits to renovation, but it does mean a different set of rules than a newer property, and those rules vary more than most buyers expect. Before you make an offer on a charming older home here, these are the things I make sure every client understands first.

Key Takeaways

  • San Mateo has two officially identified historic districts, and only one of them is subject to a local design review ordinance.
  • A Mills Act contract can meaningfully lower your property taxes on a qualifying historic home.
  • Some sought-after neighborhoods are only being considered for historic designation, which changes what applies to them today versus down the road.
  • Renovation plans on a historic property should follow the Secretary of the Interior's Standards from the start.

Know Which San Mateo Neighborhoods Are Actually Historic Districts

San Mateo's 1989 Historic Building Survey identified two official historic districts: the Downtown Historic District, centered along South B Street and 3rd Avenue, and the Glazenwood Historic District, a residential neighborhood of Spanish Colonial Revival homes built in the early 1920s. That distinction matters, because the city's Historic Preservation Ordinance currently applies its design review process only to the Downtown Historic District, not to Glazenwood. A home can be historic in character and even listed on a register without carrying the same review requirements as a neighbor a few blocks away.

What to Verify About a Property's District Status

  • Whether the home is a contributor to the Downtown Historic District or the Glazenwood Historic District, since the two carry different review processes
  • Whether the property is individually eligible for the National Register outside of either official district boundary
  • Whether the city's Historic Preservation Ordinance design review applies to your specific address before you plan any exterior changes
  • Whether the home is already listed on the National or California Register, or only eligible for listing, since the protections and incentives differ between the two

Understand What Review Your Renovation Plans Will Face

Buying in a historic district doesn't mean you can't update the home, but it does mean any exterior changes should follow the Secretary of the Interior's Standards for the Treatment of Historic Properties. Projects affecting a listed or eligible historic resource can also trigger review under the California Environmental Quality Act if the work would result in a physical change like demolition or a significant alteration. On top of that, second-story additions to existing single-family homes anywhere in San Mateo, not just in historic districts, generally go through the city's Single-Family Dwelling Design Review process, so a historic property can face two layers of review stacked on top of each other.

Questions to Ask Before You Plan a Remodel

  • Whether your planned changes are exterior, since those typically draw the most scrutiny under historic design guidelines
  • Whether the property is a designated contributor versus individually eligible, since the review process can differ meaningfully between the two
  • Whether CEQA review applies if your project involves demolition or a substantial alteration to a listed or eligible resource
  • Whether a second-story addition would also require Single-Family Dwelling Design Review on top of any historic review

Look Into a Mills Act Contract for Tax Savings

One of the most overlooked parts of buying real estate in historic districts San Mateo is the Mills Act, a program the city has offered since 1993. It lets owners of qualifying historic resources enter into a contract with the city to maintain and restore the property in exchange for a reduction in property taxes, and it's one of the more meaningful financial incentives tied to owning a historic home here.

What a Mills Act Contract Can Mean for You

  • A property tax reduction tied to a commitment to maintain and restore the historic resource over time
  • Eligibility tied to National Register or California Register status, including properties that are historic district contributors
  • A separate incentive from the federal Historic Preservation Tax Incentives program, which is limited to income-producing properties rather than owner-occupied homes
  • A contract structure and application process worth reviewing with the city's Planning Division well before you close

Watch Neighborhoods Still Under Consideration

Not every character-rich pocket of San Mateo has a formal designation yet. The California Office of Historic Preservation identified the Baywood-Aragon and San Mateo Park neighborhoods back in 1990 as areas worth documenting for potential historic district status, and local preservation advocates are still pursuing a National Register listing for Baywood. San Mateo Park is already recognized by the city as its own distinct planning area, with corner lot setback rules that differ from the standard R-1 requirements elsewhere in San Mateo.

What This Means If You're Buying in Baywood-Aragon or San Mateo Park

  • These areas are not yet officially designated historic districts, unlike Downtown or Glazenwood
  • San Mateo Park carries its own planning-area setback rules for corner lots, separate from the city's general R-1 development standards
  • Formal historic designation, if it happens, could add Mills Act eligibility or additional review down the line
  • It's worth tracking designation progress through the city's Planning Division if this factors into your buying decision

Budget for What Character and Age Actually Involve

An older home's charm often comes with systems and construction methods that a standard inspection alone won't fully capture. Before you buy real estate in historic districts San Mateo has on the market, it's worth building extra time and budget into your plans for both the inspection process and any renovation down the line, especially if the home falls under design review.

What to Plan For Financially and Logistically

  • A longer runway for any exterior renovation that requires historic design review or CEQA analysis
  • A conversation with San Mateo's Planning Division early, before you finalize your renovation vision or your offer
  • A qualified inspector experienced with older construction methods and materials specific to the home's era
  • A realistic budget that accounts for materials or techniques matching the home's original character, which often cost more than standard replacements

FAQs

Do all older homes in San Mateo count as historic districts?

No. San Mateo has two officially identified historic districts, Downtown and Glazenwood, and only Downtown currently falls under the city's design review ordinance. Other older neighborhoods may be historic in character without carrying that designation.

Can I still renovate a home in a historic district?

Yes, but exterior changes are generally expected to follow the Secretary of the Interior's Standards, and some projects may require CEQA review depending on their scope.

Is a Mills Act contract worth looking into before I buy?

It can be, especially if the property is already listed or eligible for the National or California Register. I always recommend reviewing the details with the city's Planning Division as part of your due diligence.

Contact Stephanie Nash Today

Buying a historic home in San Mateo is exciting, but it's also a decision where the details genuinely matter, from what designation actually applies to your property to what a future remodel might involve. I want you to walk into this kind of purchase with clear eyes and a clear plan.

If you're considering a historic property in San Mateo, reach out to me, Stephanie Nash, and let's talk through what it would mean for you.


Stephanie Nash

Stephanie Nash

About The Author

For more than three decades, Stephanie Nash has been one of the Peninsula’s most trusted and proven real estate advisors, serving Woodside, Portola Valley, Atherton, Redwood City, Emerald Hills, San Carlos, Half Moon Bay, and the surrounding communities from Burlingame to Los Gatos.

Born and raised on the Peninsula, Stephanie brings true insider knowledge of the region; its micro-neighborhoods, school corridors, country-property enclaves, and the lifestyle features that make this area so coveted: sunny weather, an easygoing spirit, hiking trails, large-parcel retreats, ocean-view hillsides, and world-class food and culture.

A career built on experience, ethics, and results

Stephanie began her real estate career in 1987 working in local title companies before becoming the assistant to a top-producing agent. She earned her real estate license in 1991, and since then has built a reputation as a solutions-driven, ethical, and steady negotiator who guides clients through every complexity of a California transaction.

Her track record includes everything from luxury estates to rural acreage to trust and estate sales, including the successful sale of a 500-acre property, a transaction requiring extensive due diligence, jurisdictional navigation, and long-term strategy.

Nationally recognized performance

Stephanie has been recognized multiple times by RealTrends as one of the “Best Agents in America,” most recently in 2024; an honor reserved for the top tier of agents nationwide based on verified production.

Expert Witness in Real Estate Matters

In addition to client representation, Stephanie now serves as a retained Expert Witness in California real estate cases—including valuation disputes, fiduciary sales, marketing standards, agent performance, disclosure practices, and industry-standard care.

What clients rely on her for

Whether you are buying, selling, downsizing, expanding, or handling a trust/estate sale, Stephanie offers:

  • Deep regional expertise across multiple Peninsula micro-markets

  • Strong negotiation skills grounded in fairness, strategy, and consistent communication

  • Experience in complex transactions (trusts, estates, multiple-heir negotiations, title defects, rural land issues)

  • Compassionate guidance rooted in decades of hands-on client service

  • Unmatched availability and responsiveness

Clients praise her listening skills, honesty, and ability to navigate even the most emotional or complicated sale with clarity and professionalism.

A life built around community and care

Stephanie is deeply grateful for her family, her life on the Peninsula, and the meaningful relationships formed through her work. 

Also Worth Reading

View All

Work With Stephanie

Stephanie respects residential real estate’s dual role as a personal investment and chief financial one. Whether you are buying or selling a home, it will likely be one of the largest financial decisions you make. Stephanie will be with you every step of the way to expertly guide you.

Let's Connect

Address

2930 Woodside Road
Woodside, CA 94062

CA DRE# 01104524

Stephanie Nash

(650) 995-3820

[email protected]

Get in Touch

By providing your contact information to Stephanie Nash, your personal information will be processed in accordance with Stephanie Nash's Privacy Policy. By checking the box(es) below, you expressly consent to receive marketing or promotional real estate communication from Stephanie Nash in the manner selected by you. For SMS text messages, message frequency varies. Message and data rates may apply. Consent is not a condition of purchase of any goods or services. You may opt out of receiving further communications from Stephanie Nash at any time. To opt out of receiving SMS text messages, reply STOP to unsubscribe. SMS text messaging is subject to our Terms of Use.