San Mateo County · census-designated place

Broadmoor

Broadmoor is a census-designated place in unincorporated San Mateo County, in the San Francisco Bay Area. 0.43 sq mi of land. Zoning is set by the county, not a city government. Screen any APN in or near Broadmoor for zoning, FEMA flood, CAL FIRE / WUI wildfire hazard, soils, geology, and planning — every finding linked to the official source — then verify with San Mateo County planning before you buy or entitle.

Updated 2026-08-29

Useful sources for searching Broadmoor: Official sources to verify buildability in Broadmoor ↓

About Broadmoor land diligence

Broadmoor is a census-designated place in unincorporated San Mateo County, in the San Francisco Bay Area. 0.43 sq mi of land. Zoning is set by the county, not a city government.

Broadmoor is a census-designated place in unincorporated San Mateo County—confirm zoning with the county. Most deals need both a fast multi-layer screen and a follow-up with local planners—especially where city limits, specific plans, hillside fire standards, or floodplain rules apply.

Search intents this page answers: zoning in Broadmoor, FEMA flood near Broadmoor, CAL FIRE hazard severity, APN lookup, and whether a vacant lot is buildable before you spend on surveys or design.

Community snapshot

Broadmoor is a census-designated place in unincorporated San Mateo County, California.

Character: Census-designated / unincorporated community in San Francisco Bay Area.

Land area: roughly 0.432 square miles.

Climate: Peninsula Mediterranean — cool coast, warmer inland.

Growth outlook: Population and housing capacity for Broadmoor should be confirmed with Census ACS and San Mateo County planning for unincorporated land; do not rely on outdated marketing copy.

Jurisdiction check: confirm whether the APN is inside Broadmoor limits or unincorporated San Mateo County before relying on city zoning maps alone.

Housing & land patterns

Median home

$1.25M

Median income

$167k

Ownership

73%

Median year built

1949

vs California

+65%

Terrain

San Francisco Bay shoreline · Peninsula valley floors · Santa Cruz Mountains ridges

Broadmoor is a census-designated / unincorporated community in San Francisco Bay Area with a high-value housing market well above the California ACS median, above-average household incomes, a owner-heavy housing mix, and housing stock primarily built during the mid-20th century.

Housing market

Median home value

$1.25M

$1,254,600

Much higher than CA

Median rent

$3,501/mo

Median household income

$167k

$167,396

Much higher than CA

Vacancy rate

6.0%

California$760k
Broadmoor$1.25M

+65% vs California ACS median

Housing characteristics
Owner-occupied73%
Renter-occupied27%
1949
19202025

Typical home age signal — not a forecast of new construction.

Affordability & housing mix

Home value ÷ income

7.5×

ACS proxy — median home value divided by median household income

Rent ÷ income

25%

Annual median gross rent as share of median household income

Rent burden 30%+

18%

Share of renter households paying 30% or more of income on gross rent

Derived ACS ratios for market context — not a proprietary cost-of-living index or lender qualification standard.

Single-family units92%
Multifamily units8%

Units-in-structure mix from ACS — shares of total housing units, not new construction pipeline.

Lifestyle & investment

Families

  • Household incomes support a relatively affluent profile
  • Neighborhood amenities and lot hazards still decide fit
  • Confirm attendance boundaries on the specific APN

Retirees

  • Housing stock centered around 1949 — maintenance needs vary
  • Walkability and healthcare access differ street to street
  • Review HOA rules, insurance, and parcel hazards before buying

Investors

  • Owner-heavy markets still need local rental comps
  • ACS median gross rent about $3,501/mo
  • Zoning, ADU rules, and insurance drive outcomes more than ACS averages

Builders

  • Mountain and coastal lots frequently need slide, grade, and WUI diligence
  • Verify zoning, setbacks, and utility access early
  • Geotechnical and grading reviews are common on hillside lots
Terrain & geography

San Mateo County spans bay flats, Peninsula valleys, and Santa Cruz Mountains. Coastal and mountain parcels are steep; bayshore cities sit on gentler fill and alluvium.

Elevation Sea level to about 2,600+ ft in the Santa Cruz Mountains

01San Francisco Bay shorelineSan Francisco Bay shoreline flats and fill
02Peninsula valley floorsPeninsula valley floors
03Santa Cruz Mountains ridgesSanta Cruz Mountains ridges and redwood canyons
04Pacific coastal bluffsPacific coastal bluffs and terraces
Development checklist
  • Slope and grading feasibility
  • Flood exposure and drainage
  • Wildfire / WUI hazard
  • Liquefaction and geology where mapped
  • Zoning, setbacks, and overlays
  • Utility access (water, sewer/septic, power)
  • Geotechnical conditions on hillside or fill lots

Screen slope and elevation on the APN in Parcel View, then confirm grading, driveway grades, and pad feasibility with San Mateo County planning and a licensed surveyor/engineer.

Key takeaways

  • Housing prices in Broadmoor sit well above the California ACS median.
  • Terrain shifts across several landscapes — from san francisco bay shoreline to pacific coastal bluffs.
  • Parcel-specific screening for zoning, flood, wildfire, soils, and slope matters more than any countywide average.

What Parcel View checks in Broadmoor

Parcel & APN

Boundary and assessor parcel number context so you can confirm you are looking at the right lot inside or near Broadmoor.

Zoning & land use

Reference zoning and general plan overlays from public GIS—verify final district with San Mateo County planning.

FEMA flood

National Flood Hazard Layer zones across the parcel, including Special Flood Hazard Areas that affect insurance and building rules around Broadmoor.

Wildfire hazard

CAL FIRE Fire Hazard Severity Zones and WUI context for insurance and defensible-space diligence around Broadmoor.

Soils

USDA SSURGO map units for a first look at septic suitability, drainage, and grading constraints where mapped near Broadmoor.

Geology & slope

Mapped liquefaction, fault, landslide, and terrain screens where the state publishes them for San Mateo County.

Verify locally

Parcel View is a first-pass public GIS screen. City or county planning makes official determinations for Broadmoor.

Living and buying land in Broadmoor

Broadmoor is a census-designated place in unincorporated San Mateo County, California.

Character: Census-designated / unincorporated community in San Francisco Bay Area.

Land area: roughly 0.432 square miles.

Climate: Peninsula Mediterranean — cool coast, warmer inland.

Growth outlook: Population and housing capacity for Broadmoor should be confirmed with Census ACS and San Mateo County planning for unincorporated land; do not rely on outdated marketing copy.

Jurisdiction check: confirm whether the APN is inside Broadmoor limits or unincorporated San Mateo County before relying on city zoning maps alone.

Wildfire, flood, and insurance diligence in Broadmoor

Hazard diligence is parcel-specific in Broadmoor, but community patterns matter for underwriting and timeline.

Wildfire: community screening level is elevated — Coastal hills and Santa Cruz Mountains edges often need wildfire diligence..

Community wildfire screening note: elevated — Coastal hills and Santa Cruz Mountains edges often need wildfire diligence.

Flood: community screening level is variable — Flood risk varies by floodplain, alluvial fan, and local drainage. Screen FEMA layers on the APN and ask about drainage history..

Community flood screening note: variable — Flood risk varies by floodplain, alluvial fan, and local drainage. Screen FEMA layers on the APN and ask about drainage history.

Seismic: California is seismically active. Review Alquist-Priolo / fault maps and local geologic hazards for the APN..

Coastal influence may add Local Coastal Program, tsunami, or coastal setback questions on some lots.

Insurance diligence often focuses on: wildfire / wui underwriting; brush clearance and defensible space documentation; flood zone determination where fema indicates risk.

FAIR Plan / insurance context: Homeowners insurance can be constrained by wildfire, brush, and sometimes flood. FAIR Plan appears more often in higher wildfire zones — verify early in diligence.

Commute, transit, and utilities in Broadmoor

Commute screen: Commute times from Broadmoor depend on destination, highway access, and time of day. Map drive times for your destinations rather than relying on a single city average..

Walkability: Walkability is usually higher near downtown or village centers and lower on rural/edge lots. Visit the block and check sidewalks, grade, and services..

Bike network: Bike infrastructure varies by corridor. Check local bike plans and ride the actual route you would use.

Downtown / village center: Broadmoor is unincorporated / CDP — commercial and service centers may be nearby towns rather than a classic city downtown.

Visit the parcel at the hours you would actually commute — last-mile access varies street-by-street.

Sewer vs septic: Sewer vs septic is parcel-specific in Broadmoor. Confirm connection, capacity, and any septic permits with the local sanitation / environmental health desk..

Wells: Private wells appear more often on rural and edge lots. Confirm well yield, water quality, and any shared-system agreements during diligence.

Natural gas: Natural gas availability varies by street — confirm with the serving utility..

Electric/gas utility context is typically PG&E territory in this part of San Mateo County — confirm the serving utility on the meter.

Broadmoor subareas and lot patterns

Broadmoor is often searched as a single community name on listings and county maps.

Even without a long published neighborhood list, lot-level zoning, hazards, utilities, and school boundaries still vary.

When comparing two lots in Broadmoor, weight WUI/fire, FEMA flood, septic vs sewer, slope/access, and easements carefully.

Lifestyle context for Broadmoor

Broadmoor dining and services cluster near commercial corridors and nearby centers; rural lots may be a drive from groceries and cafes.

Separate lifestyle preferences from lot-level buildability — a great street can still fail on fire insurance, flood zone, slope, or septic capacity.

Pets: Generally pet-friendly at the community level; always confirm HOA, rental, and local animal ordinances for the specific property.

How to screen a parcel in Broadmoor

Enter the address or APN on Screen and confirm jurisdiction (San Mateo County planning (unincorporated) vs San Mateo County).

Review zoning, FEMA flood, CAL FIRE / WUI, soils, geology, and slope/elevation overlays.

SB 9 screen: SB 9 applicability in unincorporated areas depends on county implementation — confirm with county planning..

HOAs: HOAs are common in planned developments and some condo/townhome tracts — request CC&Rs early if the listing mentions an association.

Short-term rentals: Short-term rental rules vary by city and county and often require permits. Verify with code enforcement / planning before assuming Airbnb/VRBO use.

General Plan focus often includes: Confirm land-use designations and Housing Element sites with San Mateo County planning..

Land area
0.432 sq mi
Character
Census-designated / unincorporated community in San Francisco Bay Area
Median home value (ACS)
$1,254,600 (about 65% above the California statewide ACS median) · ACS 2020-2024
Median gross rent (ACS)
$3,501/mo · ACS 2020-2024
Median household income (ACS)
$167,396 · ACS 2020-2024
Homeownership (ACS)
73% owner-occupied
Housing stock age
About 1949
Market context
Median home $1,254,600 (about 65% above the California statewide ACS median); vacancy about 6.0% · ACS 2020-2024 context
County elevation range
Sea level to about 2,600+ ft in the Santa Cruz Mountains
Fire risk (community)
elevated — Coastal hills and Santa Cruz Mountains edges often need wildfire diligence.
Flood risk (community)
variable — Flood risk varies by floodplain, alluvial fan, and local drainage. Screen FEMA layers on the APN and ask about drainage history.
Sewer / septic
Public sewer vs septic varies by neighborhood and edge lots — confirm with local sanitation / environmental health.
ADU screening
California statewide ADU law is strong; confirm local ordinance standards, setbacks, and parcel hazards with planning before design.
Downtown
Walkability depends on nearby service centers; many CDP lots are auto-oriented.
Region
San Francisco Bay Area / Peninsula

Common Broadmoor buyer questions

Short screening answers for searches buyers actually type. These are community-level notes — confirm on the parcel and with San Mateo County planning.

Is this area expensive?

Median owner-occupied home value is about $1,254,600 (about 65% above the California statewide ACS median); median gross rent about $3,501/mo. Neighborhoods vary — confirm current listings with a local agent.

Is it a buyer's market?

Median home $1,254,600 (about 65% above the California statewide ACS median); vacancy about 6.0% · ACS 2020-2024 context

Is it growing?

Population and housing capacity for Broadmoor should be confirmed with Census ACS and San Mateo County planning for unincorporated land; do not rely on outdated marketing copy.

Is it family friendly?

High household incomes (about $167,396) suggest a relatively affluent community, but school quality, commute, parks, and parcel hazards still decide family fit. Confirm attendance boundaries and screen fire/flood on the APN.

Is it good for retirees?

Housing built around 1949 means maintenance needs vary. Walkability, healthcare access, HOA rules, and insurance costs should be reviewed before purchasing.

Is it good for investors?

Tenure mix is about 73% owner-occupied. Median gross rent about $3,501/mo. Rental demand may help, but zoning, ADU rules, STR ordinances, and insurance ultimately determine investment potential.

Are rentals in demand?

Median gross rent is about $3,501/mo. Confirm vacancy, comps, and any rent-stabilization or STR rules before underwriting.

Is there new construction?

Typical stock ages to around 1949; newer tracts and Housing Element sites still need local planning maps. Check current applications with San Mateo County planning for unincorporated land.

Can I build an ADU?

California statewide ADU law is strong; confirm local ordinance standards, setbacks, and parcel hazards with planning before design.

Is it wildfire prone?

Community wildfire screening note: elevated — Coastal hills and Santa Cruz Mountains edges often need wildfire diligence.

Is flooding common?

Community flood screening note: variable — Flood risk varies by floodplain, alluvial fan, and local drainage. Screen FEMA layers on the APN and ask about drainage history.

Is there public sewer?

Sewer vs septic is parcel-specific in Broadmoor. Confirm connection, capacity, and any septic permits with the local sanitation / environmental health desk.

Are wells common?

Private wells appear more often on rural and edge lots. Confirm well yield, water quality, and any shared-system agreements during diligence.

Are HOAs common?

HOAs are common in planned developments and some condo/townhome tracts — request CC&Rs early if the listing mentions an association.

Are short-term rentals allowed?

Short-term rental rules vary by city and county and often require permits. Verify with code enforcement / planning before assuming Airbnb/VRBO use.

What is the average commute?

Commute times from Broadmoor depend on destination, highway access, and time of day. Map drive times for your destinations rather than relying on a single city average.

Is it walkable?

Walkability is usually higher near downtown or village centers and lower on rural/edge lots. Visit the block and check sidewalks, grade, and services.

Is it bike friendly?

Bike infrastructure varies by corridor. Check local bike plans and ride the actual route you would use.

Does it have a downtown?

Broadmoor is unincorporated / CDP — commercial and service centers may be nearby towns rather than a classic city downtown.

Is it pet friendly?

Generally pet-friendly at the community level; always confirm HOA, rental, and local animal ordinances for the specific property.

Screen a parcel in Broadmoor San Mateo County guide

Profile confidence: medium · Updated 2026-08-05. Informational screening only.

Frequently asked questions about Broadmoor parcels

Is land in Broadmoor buildable?

Buildability is not a single map label. Screen zoning, flood, wildfire hazard, access, and soils for the specific APN near Broadmoor, then ask San Mateo County planning whether your proposed use can be entitled and permitted.

How do I check zoning in Broadmoor?

Run a Parcel View screen for a first-pass zoning/general-plan reference, then confirm the controlling district with San Mateo County planning. Overlays and specific plans can change what is allowed.

Does Broadmoor have FEMA flood risk?

Flood risk is parcel-specific. Parcel View intersects the FEMA National Flood Hazard Layer with the lot polygon. Always verify Special Flood Hazard Areas and base flood elevations on the FEMA Map Service Center before financing or building.

How do I screen a parcel in Broadmoor?

Enter the address or APN in Parcel View. Broadmoor is a census-designated place in unincorporated San Mateo County—confirm zoning with the county.

Is Parcel View a substitute for San Mateo County planning?

No. It is a first-pass public GIS screen with source links. City or county planning makes official determinations.

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