San Mateo County Clerk-Recorder Overview

San Mateo County sits at the heart of the San Francisco Peninsula, stretching from the Pacific coastline east to the San Francisco Bay. With a population of approximately 765,000 and an assessed property value exceeding $206 billion, the county encompasses some of California's most sought-after residential and commercial real estate. The Assessor-County Clerk-Recorder & Elections (ACRE) office, headed by Mark Church, manages all recording and public records functions from its Redwood City headquarters.

San Mateo County at a Glance

Population: 765,000
Parcels: 220,000+
Established: 1856
Area: 455 sq mi
County Seat: Redwood City
Municipalities: 20 incorporated cities

Peninsula county between San Francisco and Silicon Valley

Unlike neighboring Santa Clara County — which took its official records index offline in 2018 — San Mateo County maintains a free online Grantor/Grantee database accessible through the RecorderWorks portal. However, owner names are redacted from online index results as a privacy protection measure against identity theft, which means that while you can search by grantor or grantee name, the public-facing results omit identifying information. Full document images require an in-person visit or a mail request.

Recording Fees & Fee Schedule

The following fee schedule reflects current San Mateo County recording charges. All fees are subject to change by county ordinance.

Fee Type Amount Authority / Notes
First page — standard recording $14.00 Government Code §27361
Each additional page $3.00 Government Code §27361
Combined documents / additional title $14.00 Per additional title within same recording
Real Estate Fraud Prosecution Fee $3.00 Per title — BOS Resolution 075141 (eff. June 2017)
SB2 Building Homes & Jobs Act $75.00 Per parcel/title, max $225 — exempt for DTT or owner-occupier transfers
Missing PCOR penalty $20.00 If Preliminary Change of Ownership Report not filed
Undersized print penalty $1.00 Per page — applied to entire document
Non-conforming size penalty $3.00 Per page — documents not 8½" × 11"
Conformed copy / acknowledge $10.00 Proof of recording
Research files $20.00 Staff-assisted research
Document copy — first page $5.00 Uncertified / regular copy
Document copy — additional pages $1.00 Per page, same document
Certification fee $5.00 Per document — in addition to copy fees
Map of subdivided land — first page $9.00 Government Code §27366
Map copy — 18" × 23" $200.00 Per recorded map

Payment at the office is accepted by cash, pre-printed check (payable to San Mateo County Clerk-Recorder, drawn against a U.S. bank), or credit/debit card (Visa and Mastercard only). Mail-in requests accept checks only.

Documentary Transfer Tax

City of San Mateo — Measure CC (Graduated Transfer Tax)

Properties within the City of San Mateo's municipal boundaries are subject to an additional city conveyance tax established by Measure CC, approved by voters in November 2022. The city tax is levied on the full value of the property — not net of liens — which is a non-standard provision under California transfer tax law.

Consideration / Value City Tax Rate Per $1,000 Equivalent
Under $10,000,000 0.5% $5.00 / $1,000
$10,000,000 and above 1.5% $15.00 / $1,000

Measure CC includes exemptions unique to the City of San Mateo: transfers among joint tenants and tenants in common (Muni Code 3.48.030(6)), marital property transfers (3.48.030(6)-(7)), parent-to-child and parent-to-stepchild transfers (3.48.030(8)), and continuing partnership exemptions (3.48.020 & 3.48.030(5)). Notably, there is no proportional interest exemption under the city ordinance.

Town of Hillsborough

Properties in Hillsborough are subject to an additional city transfer tax of $0.30 per $1,000. Payment responsibility is negotiable between buyer and seller.

Transfer Tax Example — City of San Mateo

Sale price: $2,500,000 home in the City of San Mateo

Tax Layer Calculation Amount
County DTT ($1.10 / $1,000) 2,500 × $1.10 $2,750.00
City of San Mateo Measure CC (0.5%) $2,500,000 × 0.005 $12,500.00
Total transfer taxes $15,250.00

Online Resources & Record Access

San Mateo County provides several digital tools for property research. The online Grantor/Grantee Index at smcacre.gov allows name-based and recording number searches — though owner names are redacted from results as a privacy measure. The RecorderWorks portal at apps.smcacre.org/recorderworks supports document searches and copy orders. The Assessor's office provides free online access to parcel data, assessed values, property characteristics, ownership information, and property tax lookup through the main ACRE website. Parcel/assessor maps are available digitally as well.

For in-person research, the entire ACRE operation is consolidated at 555 County Center in Redwood City. The Assessor Division occupies the first floor alongside the Clerk-Recorder Division. Both divisions share the county's metered parking garage. The county also offers an online appointment scheduling tool at appts.smcacre.org, though walk-ins are welcome.

Peninsula Property Records — Local Market Issues

City of San Mateo Measure CC Impact

The 0.5% city transfer tax on sales under $10M and 1.5% on sales of $10M+ creates a significant closing cost layer for Peninsula transactions. Unlike most California city transfer taxes, San Mateo's is calculated on full value — not net of liens. For a $5M property, combined county-plus-city taxes reach $30,500. Sellers customarily pay county DTT; the city portion is negotiable per Muni Code.

Redacted Online Index

While San Mateo County's online Grantor/Grantee Index is functional (unlike Santa Clara's, which was taken entirely offline), owner names are deliberately omitted from public-facing search results to prevent identity theft. This means thorough title research still requires an in-person visit, a mail request, or a professional title search service to obtain complete chain-of-title information.

Tech Company Ground Leases & Campus Transfers

The northern Peninsula (South San Francisco biotech corridor, Menlo Park tech campus cluster including Meta headquarters, Redwood City tech offices) features significant ground lease arrangements and corporate entity transfers. Revenue & Taxation Code §64 governs entity-level transfer triggers — critical for properties held by LLCs or partnerships where ownership interest changes may not appear in traditional deed records.

Hillsborough & Atherton Estate Properties

Two of California's wealthiest municipalities sit within San Mateo County. Hillsborough (minimum lot size: 0.5 acre) and Atherton (median home prices consistently among the nation's highest) present unique title concerns: private roads with complex easement histories, deed-restricted architectural requirements, large-lot subdivisions with historical water rights, and multi-generational family trusts with complex chain-of-title issues amplified by Proposition 19 reassessment exposure.

Coastal Zone & Half Moon Bay Properties

The entire western coastline of San Mateo County — from Pacifica through Half Moon Bay, San Gregorio, and Pescadero to Año Nuevo — falls within the California Coastal Zone. Properties in this area carry additional title encumbrances: Coastal Development Permits (CDPs), Local Coastal Program restrictions, agricultural preservation easements, and potential California Coastal Conservancy deed restrictions. Midcoast communities (Montara, Moss Beach, El Granada) have limited infrastructure that triggers special assessment districts.

SFO Airport & Noise Easements

San Francisco International Airport occupies unincorporated county land and generates significant noise impacts on nearby communities including Millbrae, Burlingame, San Bruno, and South San Francisco. Properties within designated noise contour zones carry avigation easements and noise disclosure requirements that appear in title records. These easements can affect property values and must be reviewed carefully during title examination, particularly for residential properties near flight paths.

Counties Neighboring San Mateo

San Mateo County borders several other California counties whose property records you may need for cross-jurisdictional research:

Complete Guide to San Mateo County Property Records

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San Mateo County: Typical turnaround 24-48 hours. Peninsula records.

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Title Search FAQs for San Mateo County

How do I search a property title in San Mateo County?
To search a property title in San Mateo County, use U.S. Title Records' online property title search service. Enter the property address to access comprehensive title reports, deed records, liens, and encumbrances. Our title search examines all recorded documents in the county recorder's database.
What does a San Mateo County title report search include?
A title report search for San Mateo County includes ownership verification, complete chain of title, recorded liens and judgments, open mortgages, tax status, easements, and pending litigation notices. Our public property records search covers 30+ years of recorded documents.
How long does a property title search take?
Standard property title searches for San Mateo County are completed within 1-2 business days. Complex searches involving extensive title history or abstractor services may take 2-5 business days. Rush services are available for time-sensitive transactions.
Why use a title search company for San Mateo County records?
Professional title search companies like U.S. Title Records have direct access to San Mateo County's title plant databases, providing faster and more comprehensive results than individual county office searches. Our San Mateo County searches cover some of California's highest property values, from Hillsborough estates to coastside farms.

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San Mateo County FAQ

Understanding San Mateo County Property Documents

Property transactions in San Mateo County involve several categories of recorded documents that buyers, sellers, and investors should understand before initiating a title search or lien investigation.

Grant deeds are the most common instrument for transferring real property in California. Unlike warranty deeds used in other states, California grant deeds provide two implied warranties: that the grantor has not previously conveyed the same property, and that the property is free from encumbrances created by the grantor except those already disclosed. When ordering a chain of title report for San Mateo County properties, each grant deed in the ownership history is examined to verify these warranties were maintained.

Deeds of trust serve as the security instrument for most San Mateo County mortgages. Unlike states that use traditional mortgages, California's deed of trust creates a three-party arrangement between the trustor (borrower), beneficiary (lender), and trustee (neutral third party). When the loan is paid off, a reconveyance deed is recorded to release the lien. Unreleased deeds of trust that appear in title searches often require a full reconveyance to be recorded before clear title can be established.

Lis pendens notices alert potential buyers that litigation affecting a San Mateo County property is pending. These recorded notices can involve boundary disputes, partition actions, or foreclosure proceedings. A comprehensive lien search will identify any active lis pendens that could affect your ability to obtain clear title or title insurance for the property.

Mechanic's liens in California have specific recording deadlines that differ based on whether the claimant is a direct contractor, subcontractor, or material supplier. For San Mateo County properties, preliminary notice must typically be given within 20 days of first furnishing labor or materials. The mechanic's lien itself must be recorded within specific timeframes after project completion. These liens take priority from the date work commenced, not the recording date, which makes them particularly significant in title searches for recently improved properties.

Abstract of judgment liens attach to all real property owned by the judgment debtor in San Mateo County once recorded with the county recorder. These liens remain effective for ten years and can be renewed. Title searches for San Mateo County properties routinely check for abstracts of judgment filed against current and prior owners to ensure no undisclosed judgment liens will survive a property transfer.

Easements recorded against San Mateo County properties include utility easements, access easements, conservation easements, and prescriptive easements. Unlike liens, easements do not necessarily indicate a financial obligation but can significantly restrict how property may be used. A preliminary title report will identify all recorded easements and their specific terms, helping buyers understand exactly what restrictions apply before completing a purchase.

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Can I search San Mateo County property records online?
Yes. San Mateo County provides a free online Grantor/Grantee Index at smcacre.gov, searchable by party name or recording number. However, owner names are omitted from online results to protect against identity theft. Full document images can be obtained by visiting the Clerk-Recorder's Office at 555 County Center, 1st Floor, Redwood City, CA 94063, or by mail. The Assessor's Office also provides free online property tax lookup and parcel data at the same website.
How much does it cost to record a document in San Mateo County?
Recording fees are $14.00 for the first page and $3.00 for each additional page. Most real estate documents also require a $3.00 Real Estate Fraud Prosecution Fee per title and a $75.00 SB2 fee per parcel per title (maximum $225.00). SB2 is exempt for transfers subject to documentary transfer tax and residential transfers to an owner-occupier. Additional titles or combined documents are $14.00 each. A $20.00 penalty applies if a PCOR is not filed with a property transfer.
Where is the San Mateo County Clerk-Recorder's office?
The San Mateo County ACRE office is located at 555 County Center, 1st Floor, Redwood City, CA 94063. Office hours are Monday through Friday, 8:00 AM to 5:00 PM (Assessor) and 8:00 AM to 4:30 PM (Recorder). The phone number for all recording services is (650) 363-4500. Walk-ins are welcome, and appointments can be scheduled online. Payment is accepted by cash, check, or Visa/Mastercard.
What is the City of San Mateo's Measure CC transfer tax?
Measure CC, approved by voters in November 2022, established a graduated Real Property Transfer Tax for property within the City of San Mateo's limits. The rate is 0.5% ($5.00 per $1,000) on transfers below $10 million, and 1.5% ($15.00 per $1,000) on transfers of $10 million or more. This is in addition to the county DTT of $1.10 per $1,000. The city tax applies to full value, not net of liens — a non-standard provision. A Transfer Tax Affidavit must be filed when recording.
How do I get a copy of a recorded deed in San Mateo County?
Copies are available in person, by mail, or through RecorderWorks online. Fees are $5.00 for the first page, $1.00 for each additional page, and $5.00 for certification. In person: visit 555 County Center, 1st Floor, Redwood City. By mail: send a written request with the recording number and a check payable to San Mateo County Clerk-Recorder. Online: use RecorderWorks at apps.smcacre.org/recorderworks to search and order copies.
Does San Mateo County have e-recording?
Title companies can submit electronic recordings in San Mateo County. Public e-recording is listed as "coming soon" on the county website. Documents can be recorded in person at 555 County Center during business hours, or by mail. Mailed documents must include a check payable to San Mateo County Clerk-Recorder and pertain to real property located within San Mateo County.

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