1025.98 acres of land near San Jose, Santa Clara County
Mt Umunhum-Loma Prieta Rd · Parcel 56221016
County file October 2026
- Acres1025.98
- Land typeOther
- ZoningHSRural residential (state class)
- Future land useOther Public Open Lands
- Flood zoneD
- Wetlands1% of the parcel
- Assessed value (county)No tax value on the county file (as of Oct 2026)Santa Clara County's open parcel layer publishes no assessed values
- Last saleNo priced sale on file (as of Oct 2026)Santa Clara County publishes no sale prices we may use
- Road accessHas road accessRoads: road centerlines
- Zoned bySanta Clara CountyUnincorporated
Land facts
From public records and official maps, each with its source and date.
- Section, township, rangeSection 21, Township 9 South, Range 1 East, Mount Diablo MeridianBLM PLSS (CadNSDI), at the parcel's center · Oct 2026
- Septic (soils)Very limitedUSDA NRCS soil survey (SSURGO), septic absorption fields · Oct 2026
- Ground elevationAbout 975–3,051 ft above sea levelUSGS 3DEP 1/3 arc-second (about 10 m), NAVD88; about ±1–2 ft · Oct 2026
Free account: 25 parcel cards a day on the map, with watches and a saved search
Home facts
- Bedrooms, bathrooms, living area, year built
- Not in this county's published parcel file
Property tax
California Constitution art. XIII A (Prop 13) and the county assessment roll · 2026
- Tax rate
- About 1% of assessed value plus local voter-approved rates
- If you buy
- About 1% of the price you pay each year, plus local voter-approved ratesProp 13 resets the assessed value to the purchase price at a sale
The 1% general levy (Prop 13) plus the voter-approved rate of the parcel's tax rate area; bills also carry Mello-Roos and special assessments. California bills come from the county tax collector; we don't show bill amounts here.
California 2026-27 taxes: bills go out by November 1; first installment due by December 10, 2026, second by April 12, 2027. Pay or check a bill at the Santa Clara County Department of Tax and Collections.
Sources: California Revenue and Taxation Code 2617, 2618, 2619 and 1603; the State Board of Equalization’s 2026 appeal filing periods. Checked Oct 13, 2026.
Who decides
- City or countyUnincorporated Santa Clara CountyThe county sets zoning, ADU and SB 9 rules.California Department of Technology city boundaries · Sep 21, 2026
Assessed value (Prop 13)
- Santa Clara County's open parcel layer publishes no assessed values. We don't have tested sale data for this county, so we don't show a price estimate.County of Santa Clara
Zoning
- HS (Santa Clara County's own code), state class “Rural residential”. As of 7/14/2023, collected from County Hub. Verify with Santa Clara County: the state's classes are generalized.LCI California Zoning (New Classes), release Jan 15, 2026 · 7/14/2023
- General planOther Public Open Lands (Santa Clara County's own designation), state class “Open space and public lands”. As of Q2 2022.LCI California General Plan Land Use · Q2 2022
SB 9 signals
What the public maps say about this lot. Not a determination of eligibility and not legal advice; only Santa Clara County decides.
- Single-family zoneZoned HS, state class “Rural residential”: looks single-family. Verify with Santa Clara County: the state's classes are generalized.LCI California Zoning (New Classes), release Jan 15, 2026 · 7/14/2023
- Prime farmlandMapped as Other Land, not prime farmland or farmland of statewide importance.DOC FMMP Important Farmland · 2022
- WetlandsThe National Wetlands Inventory maps wetland on about 1% of the lot.USFWS National Wetlands Inventory · Oct 9, 2026
- Fire hazard zoneIn a mapped High Fire Hazard Severity Zone (SRA): excluded unless the project meets the state's fire mitigation standards.CAL FIRE Fire Hazard Severity Zones · SRA Apr 1, 2024; LRA Mar 24, 2025 · Official map
- Hazardous waste siteCheck the state's hazardous waste site list (DTSC EnviroStor, the Cortese list).DTSC EnviroStor · Official map
- Earthquake fault zoneCheck the California Geological Survey's earthquake fault zone map.CGS Alquist-Priolo · Official map
- FEMA flood zoneNot in a Special Flood Hazard Area (zone D).FEMA National Flood Hazard Layer · Oct 10, 2026
- FloodwayFloodway not measured for this lot here; check the FEMA map.FEMA National Flood Hazard Layer · Oct 10, 2026
- Conservation easement or planCheck conservation easements (CCED) and habitat plans with Santa Clara County.CCED · Official map
- Protected species habitatCheck USFWS critical habitat.USFWS critical habitat · Official map
- Historic propertyCheck with Santa Clara County: no statewide layer lists historic landmarks and districts (AB 1061).No statewide layer
- Tenants, rent control, Ellis ActCheck: whether a tenant lived here in the last 3 years, rent control and Ellis Act withdrawals are not in any public map. Ask Santa Clara County.Not in public data
- Lot split: urban areaOutside a 2020 Census urban area: the lot split needs a lot in an urbanized area or urban cluster.US Census 2020 urban areas · 2020
- Lot split: lot sizeMapped lot area about 44,691,690 sq ft: two lots of at least 1,200 sq ft and 40% each could fit, on mapped lot area only.Parcel outline (county GIS) · Oct 11, 2026
Gov. Code 65852.21 (two units) and 66411.7 (urban lot split), site exclusions in 65913.4(a)(6)(B)-(K); as amended by SB 450 (effective 2025-01-01) and AB 1061 (effective 2026-01-01, historic exclusion); Executive Order N-32-25 (2025 Los Angeles fires). Statute version read 2026-10-11.
ADU
- Accessory dwelling unitsState ADU law (Gov. Code 66310-66342) applies to residential lots: at least 1 ADU + 1 JADU by right, subject to local standards. Check Santa Clara County.HCD ADU Handbook (March 2026); Gov. Code 66310-66342
Housing
- SB 35 / SB 423 streamliningSanta Clara County (unincorporated)'s SB 35 status: Exempt (HCD determination, data last edited Jun 23, 2023; no newer layer found). A possible streamlined site is not evaluated here.HCD SB 35 determinations · Jun 23, 2023
- Opportunity mapCTCAC/HCD opportunity area: Highest Resource (used for tax-credit housing).CTCAC/HCD Opportunity Map 2026 · 2025-12
Fire
- Fire Hazard Severity ZoneIn a mapped Very High Fire Hazard Severity Zone (CAL FIRE Fire Hazard Severity Zone map, State Responsibility Area, effective Apr 1, 2024). The Very High zone covers about 82% of the parcel. The parcel's centre is in a mapped High zone (SRA).CAL FIRE Fire Hazard Severity Zones · SRA Apr 1, 2024; LRA Mar 24, 2025 · Official map
Groundwater
- Not over a DWR Bulletin 118 groundwater basin; well rules here come from the county.DWR Bulletin 118 (2025), SGMA basin priority (2019), Groundwater Sustainability Agencies · B118 2025; SGMA priority 2019; GSA layer read Oct 11, 2026
Check before you buy
- Earthquake fault zone (Alquist-Priolo)Check the California Geological Survey's official Earthquake Zones of Required Investigation map.Official map
- Liquefaction / landslide zoneCheck the California Geological Survey's official Earthquake Zones of Required Investigation map. Many areas have not been evaluated by the state.Official map
- Williamson Act contractCheck with the county assessor or planning department whether the parcel is under a Williamson Act contract.Official map
- Conservation easementCheck the California Conservation Easement Database and the county recorder.Official map
Owner: on the county assessment roll (not shown here). Request removal
Data: County of Santa Clara
Governor's Office of Land Use and Climate Innovation (LCI), California Zoning (New Classes). Zoning from the State of California's statewide zoning layer, provided as a public service for informational purposes only; it is not legal advice. Each jurisdiction's own zoning map governs.
Governor's Office of Land Use and Climate Innovation (LCI), California General Plan Land Use. General plan land use from the State of California's statewide layer, for informational purposes only; not legal advice. The jurisdiction's adopted general plan governs.
California Department of Housing and Community Development (HCD), SB 35 statewide determination. HCD's determination for the jurisdiction as published; a project's eligibility for streamlining is decided by the jurisdiction.
California Tax Credit Allocation Committee (CTCAC) and HCD, 2026 Opportunity Map. Used by CTCAC to score tax-credit housing applications; it describes the census tract, not the parcel.
California Department of Technology, California city boundaries (from CDTFA / BOE). City limits as compiled by the state for tax administration; the city and county confirm jurisdiction.
Hazards
FEMA National Risk Index v1.20, planning-level · For this census tract, not this parcel · as of Dec 2025
- Wildfire
- Very High
- Landslide
- Very High
- Earthquake
- Relatively High
- Riverine flooding
- Relatively Moderate
- Heat wave
- Relatively Low
- Strong wind
- Very Low
- Coastal flooding
- No RatingFEMA computed no expected annual loss for this census tract; not a statement about this parcel
- Drought
- No RatingFEMA computed no expected annual loss for this census tract; not a statement about this parcel
Ratings are from public federal and state maps (named on each row), not a private climate model. FEMA rates each census tract from expected annual losses, community resilience and social vulnerability, for planning; it is not an assessment of this parcel.
Recorded flood claims
OpenFEMA NFIP Redacted Claims v3 · Insured buildings near this parcel, not the parcel itself · as of Sep 2026
- Claims since 1978
- 10In this census tract
Neighborhood (Census)
Census ACS 2020–2024 5-year · as of Jan 2026
- Median household income
- $127,367± $7,640 · this block group
- Median home value (owner-reported)
- $1,221,800± $260,692 · this block group
- Median rent (gross)
- $1,925± $692 · this block group
- Homes lived in by their owners
- 70%± 22 pts · this block group
- Median year homes were built
- 1970± 20 yr · this block group
- Average commute (one way)
- 33 min± 10 min · census tract (not published for block groups)
- Population
- 1,034± 336 · this block group
Figures for the census block group around this parcel (a few hundred homes), not this property. ± is the Census 90% margin of error; a figure comes from the larger census tract when the block group's sample is too small. This product uses Census Bureau data but is not endorsed or certified by the Census Bureau.
About these numbersSources, county file October 2026
Assessed value
Assessed value (Prop. 13), not a market price. County file, October 2026.
Assessed value under Prop 13, not a market value: it starts at the price paid (or the value at new construction) in the base year and rises at most 2% a year, so long-held property is usually assessed far below what it would sell for.
Parcel outline
The outline and its edge lengths are measured on the parcel map the map draws; the aerial loads from the public imagery named under it.
Source
County of Santa Clara, county file Oct 11, 2026.
Record
Public records can be wrong; check before you act.
Parcel: 56221016
Coordinates: 37.1322° N, 121.8617° W