Blog > Santa Clara Neighborhoods by Their Houses: Age, Lots, Zoning and Flood Zones

Santa Clara Neighborhoods by Their Houses: Age, Lots, Zoning and Flood Zones

by Eric & Janelle Boyenga

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The City of Santa Clara’s zoning map shows which parcels are zoned for single-family houses, and the county assessor’s records give the year each house was built. We took the 16,193 parcels zoned single-family (R1), measured each lot from its outline, matched it to the county’s year built, placed it in our neighborhood guide outlines and checked its center against FEMA’s flood map. Santa Clara’s public records don’t list house size or stories, so this post is about age, lots, zoning and flood zones. The figures come from public records as of October 2026. There are no addresses or owner details here.

The short answer

  • Santa Clara’s median single-family house was built in 1956, on a 6,390 sq ft lot. 73% were built before 1960.
  • Oldest medians: Old Quad (1947) and Monastery Gardens (1950). Newest: Agnew Village (1977) and Montague Park (1965).
  • Very little has been rebuilt: only 1% of houses citywide carry a year built of 2000 or later; the highest shares are in South of Forest (7%) and Central Park West (3%).
  • Zoning: 15,743 of the lots are zoned R1-6L and 436 R1-8L, the city’s two main single-family districts.
  • Flood zones: 694 single-family lots (4%) are in FEMA high-risk zones (581 in AO and 113 in AH). Among our guides, El Camino Homes has the most (275); 13 are in parts of the city our guides don’t cover.

Next steps in Santa Clara

Neighborhood by neighborhood

Oldest first, by the median year built. Some guides overlap (Bowers/Monroe and Briarwood share about 1,040 lots, and Monastery Gardens sits inside the Old Quad), so a lot can count in two rows. Each name opens its guide.

NeighborhoodSingle-family lotsMedian year builtBuilt before 1960Built 2000 or laterMedian lotIn FEMA high-risk zones
Old Quad2,261194789%2%6,370 sq ft—
Monastery Gardens194195096%1%6,240 sq ft—
El Camino Homes535195182%1%6,370 sq ft275
South of Forest307195290%7%9,670 sq ft—
Sunny Brae597195386%under 1%6,400 sq ft1
Central Park West860195470%3%7,570 sq ft—
Westwood834195498%1%6,260 sq ft—
Henry Schmidt Park771195598%1%5,910 sq ft—
Junipero Gardens634195591%1%6,120 sq ft83
Mariposa Gardens568195577%1%5,770 sq ft86
Briarwood2,284195694%under 1%5,960 sq ft—
Bowers/Monroe2,646195779%1%5,950 sq ft236
Maywood1,261195778%2%6,820 sq ft—
Westwood Oaks530195896%2%6,740 sq ft—
Fairway Glen43019600%1%6,390 sq ft—
Killarney Farms1,066196041%under 1%6,420 sq ft—
Forest Park36719613%1%8,370 sq ft—
Montague Park7081965under 1%under 1%6,610 sq ft—
Agnew Village351197746%2%7,480 sq ft—
All of Santa Clara16,193195673%1%6,390 sq ft694

The “All of Santa Clara” row also counts the 314 single-family lots outside the neighborhoods above.

What stands out

  • Old Quad has the oldest houses: median built 1947, with 89% built before 1960.
  • Among our guides, flood-zone lots concentrate in El Camino Homes: 275 of its 535 lots (275 in AO), mostly shallow-flooding zone AO.
  • Lot sizes are fairly even. Neighborhood median lots run from 5,770 sq ft in Mariposa Gardens to 9,670 sq ft in South of Forest.

What the flood zones mean

  • Zone A: a 1%-a-year chance of flooding, where FEMA hasn’t set a base flood elevation.
  • Zone AE: the same 1%-a-year risk, with a base flood elevation set.
  • Zone AH: shallow ponding, usually 1 to 3 feet deep, with the same 1%-a-year risk and a base flood elevation.
  • Zone AO: shallow flooding, usually sheet flow, 1 to 3 feet deep, with the same 1%-a-year risk; FEMA gives a flood depth instead of an elevation.
  • Zone X: moderate to minimal risk, outside the 1%-a-year floodplain.
  • Insurance: lenders require flood insurance on homes in the A zones when the mortgage is federally backed. In zone X it’s optional.

Reading it right

  • Sources. Single-family lots and zoning from the City of Santa Clara’s public zoning layer (parcels zoned R1, 1,500 square feet or more); year built from the county assessor’s public parcel layer, matched to each lot by location (16,147 of 16,193 lots have one); flood zones from FEMA’s National Flood Hazard Layer at the center of each lot.
  • Zoning isn’t use. A few R1 lots may hold a second unit or something other than a house, and single-family houses in other districts aren’t counted. That’s why our Rivermark guide (planned-development zoning) and Lawrence Station (its own area plan) are left out of the table.
  • “Year built” is the record’s year. A house torn down and rebuilt shows the rebuild year; an older house with an addition keeps its original year.
  • The flood zone covers the land, not the house. A house can sit above the flood level even in a high-risk zone; an elevation certificate settles it. FEMA revises its maps, so check the current map for the exact address.
  • A median isn’t a verdict. It describes the houses, not which neighborhood is right for you.

Go deeper

Santa Clara Housing Market by the Numbers covers prices and bidding, The Most Expensive Streets in Santa Clara goes street by street, and our Santa Clara sales shows the homes we’ve sold there. Flood & Fire Zones by Neighborhood compares every guide we write. The Santa Clara city guide links every neighborhood guide.

Thinking about a rebuild, an addition or a flood-zone house?

A Property Nerd can pull the zoning, the lot, the flood zone and the recent sales on your street before you plan. Call (408) 373-1660 or (650) 383-8606, or book a strategy call. Commissions are negotiable, and we offer bundled services, so ask us what’s included.

Questions about this post? Ask a Property Nerd.

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