Best Realtors in Belmont, CA (2026 Guide)
By Matthew Martinez
Belmont is a city of about 27,000 people on the mid-Peninsula, between San Mateo and San Carlos, with homes climbing from El Camino Real into hills that reach toward Interstate 280. Most housing is single-family on hillside and canyon streets, with condos and apartments closer to the Caltrain station and Ralston Avenue.
This guide is published by Diamond Real Estate Group, one of the brokerages listed. Our broker is listed first; other agents are in alphabetical order. The order is not a ranking, and inclusion is not an endorsement.
How we chose the agents in this guide
Each agent below met three checks in October 2026:
- A current California license. We opened each agent’s record on the California Department of Real Estate (DRE) public lookup and confirmed the name, license type (salesperson or broker) and a "Licensed" status, with a responsible broker or broker-associate affiliation that matches the brokerage on the agent’s profile.
- A named brokerage. Each agent’s DRE record shows the brokerage they work under.
- A public page that names Belmont. We opened each agent’s brokerage or Homes.com profile and confirmed it names Belmont as an area served, a place the agent works, or where the agent lives.
We did not rank agents, and we did not consider sales volume, reviews or awards. Licenses and affiliations change, so check the license yourself before you sign anything, and interview more than one agent.
Belmont housing in numbers
| Census measure (ACS 2024 5-year) | Belmont city |
|---|---|
| Population | 27,337 |
| Median value of owner-occupied homes | $2,000,000+ (top of the Census reporting range) |
| Median household income | $205,297 (±$18,232) |
| Median age | 39.8 |
| Persons per household | 2.5 |
| Mean travel time to work | 28.5 minutes |
| Housing units | 11,346 |
Source: U.S. Census Bureau American Community Survey 2024 5-year estimates, as presented by Census Reporter. The Census caps reported home value medians at $2,000,000, so Belmont’s true median is above that figure and the table cannot show by how much.
Because the median is top-coded, compare property types instead. Hillside homes with views, flatter streets near El Camino Real and condos near the station price very differently; our Belmont comparable sales notes explain what to compare.
Hillside streets, the flats and the station area
Belmont’s neighborhoods split roughly into the flatter areas near El Camino Real and the Caltrain station, and the hills and canyons to the west, where streets are steep and lots often slope. Hillside homes can bring view premiums along with retaining walls, drainage and foundation questions. See our Belmont real estate guide, housing settings comparison, condo and townhome ownership costs and older home records and inspections.
Costs and rules specific to a Belmont purchase
- Transfer tax. The San Mateo County Clerk-Recorder levies the documentary transfer tax at 55 cents per $500, or $1.10 per $1,000 of value. The Recorder’s page names only the City of San Mateo as adding a city conveyance tax, so a Belmont sale pays the county tax alone. Our California transfer tax guide explains who usually pays.
- Fire hazard zones and AB 38. Look up the address on the State Fire Marshal’s Fire Hazard Severity Zone maps; wooded hillside streets deserve a close look. If the home is in a High or Very High zone, see our AB 38 defensible space guide and get an insurance quote early.
- Slopes and drainage. On hillside lots, ask for geotechnical or drainage reports, retaining wall permits and any history of slide repairs.
- Sewer laterals. Ask the seller for any sewer lateral inspection or repair records and order a camera inspection; ask the City’s Public Works department what applies when you sell or remodel.
- Hazard disclosures. Read the natural hazard disclosure report for mapped landslide, earthquake and flood hazards.
- Budgeting. See our Belmont homeownership budget for costs that follow closing.
Belmont agents with verified licenses
Matthew Martinez, Diamond Real Estate Group (publisher of this guide)
Matthew Martinez is the Founder, CEO and Managing Broker of Diamond Real Estate Group. He is based in Sonoma County; contact him to discuss a purchase or sale in Belmont. Contact Matthew · Broker #01869679 · Diamond Group Estates Inc DBA Diamond Real Estate Group, DRE #02163490
| Agent | Brokerage | License | Areas named on profile |
|---|---|---|---|
| Susan Gee Berry (licensed as Susan Arlene Berry) | KW Advisors, Burlingame | Salesperson #01223601 | Belmont, San Mateo, Redwood City, Redwood Shores, Burlingame |
| Sanit Bordeianu | Coldwell Banker Realty, Burlingame | Salesperson #01923423 | Belmont, Redwood City, Redwood Shores, San Mateo, Emerald Hills, Burlingame |
| Brett Caviness | Compass, Menlo Park | Broker #01935984 | Belmont, San Carlos, Redwood City, Atherton, Menlo Park, Palo Alto |
| Vicky Costantini (licensed as Victoria Maria Costantini) | Compass, Woodside | Salesperson #01498092 | Belmont, San Carlos, Redwood City, Emerald Hills, Woodside, Atherton, Menlo Park |
| Carol Hall | Compass, Burlingame | Broker #01199038 | Belmont, Burlingame, Foster City, Hillsborough, Millbrae, San Carlos, San Mateo |
| Holly Noto | Coldwell Banker Realty, Redwood City – San Carlos | Salesperson #01244498 | Belmont, Burlingame, San Carlos, San Mateo, Foster City, Redwood City |
| Audrey Samon | Compass, Menlo Park | Salesperson #02165952 | Belmont, San Carlos, San Mateo, Redwood City, Menlo Park, Palo Alto |
| John Shroyer | Golden Gate Sotheby’s International Realty, San Carlos | Salesperson #00613370 | Belmont, Emerald Hills, Redwood City, San Carlos, San Mateo |
| Liza Vernazza | Coldwell Banker Realty, Redwood City – San Carlos | Salesperson #00993753 | Belmont, Redwood City, San Carlos, San Mateo, Burlingame, San Bruno |
| Mitch Wackerman (licensed as Mitchell Robert Wackerman) | Coldwell Banker Realty, Redwood City – San Carlos | Salesperson #02061906 | San Carlos office; profile notes he lives in Belmont |
On the DRE record, Coldwell Banker Realty agents are licensed under NRT West, Inc. (DRE #01908304) and Compass agents under Compass California II, Inc. (DRE #01527235). The KW Advisors agent is licensed under BGSM, Inc. (DRE #01906450), whose record lists KW Advisors as a business name, and the Golden Gate Sotheby’s International Realty agent under Decker Bullock Dreyfus Inc. (DRE #02027353), whose record lists that business name and a San Carlos branch. For more Peninsula agents, see our San Mateo County agents guide.
How to vet a Belmont agent
- Ask about hillside sales. Ask for recent closed sales on similar slopes and streets, and how the agent prices views against access and parking.
- Ask which inspections they order on slopes. A good agent will raise geotechnical, drainage and retaining wall questions early.
- Get fire insurance quotes early. Ask whether the address is in a mapped fire hazard zone and how they handle AB 38 documents.
- Pull permit history. Ask the agent to request City building records so you can match additions and decks to permits.
- For condos, review HOA documents. Check reserves, special assessments and rental rules before removing contingencies.
- Check the license yourself. Confirm a "Licensed" status with a current broker on the DRE lookup.
Belmont questions we hear
Is there a city transfer tax in Belmont?
No. The San Mateo County Clerk-Recorder lists only the City of San Mateo as adding a city tax, so a Belmont sale pays the county tax of $1.10 per $1,000.
What is the median home value in Belmont?
The Census reports it only as above $2,000,000, the top of its reporting range, for 2020–2024. Ask an agent for recent sales of comparable homes.
Is Belmont in a fire hazard zone?
Parts of the hills may be. Check the specific address on the State Fire Marshal’s map and read the natural hazard disclosure report.
Do these agents also cover San Carlos and San Mateo?
Yes. Most profiles in the table also name San Carlos, San Mateo or Redwood City.
Sources & notes
- California DRE public license lookup (individual records linked in the table)
- Census Reporter, Belmont city profile (ACS 2024 5-year)
- San Mateo County Clerk-Recorder, documentary transfer tax
- CAL FIRE Office of the State Fire Marshal, Fire Hazard Severity Zones
- Agent profiles on coldwellbankerhomes.com, compass.com and homes.com, linked in the table
- BGSM, Inc. DRE record (KW Advisors business name) and Decker Bullock Dreyfus Inc. DRE record (Golden Gate Sotheby’s International Realty business name)
- License records checked October 2026 on the California DRE public lookup. Last reviewed October 2026 by Matthew Martinez.
Nearby agent guides: Burlingame · Emerald Hills
Related: Belmont real estate guide · Belmont home valuation · San Mateo County agents guide · 20 tips for choosing a real estate agent
License-status update: the linked California DRE public records were checked November 2, 2026 and showed "Licensed." Public profile research retains the dates stated above. Names on DRE records may differ from public profile names; verify status and brokerage before selecting an agent.
