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Black-and-white photo of a large group posed outside the Frank Q. Story residence in Alhambra around 1900

Alhambra homes and what is behind their walls

Alhambra was one of the first suburbs east of Los Angeles, and its housing shows every era since. Here is what that means for faucets, toilets and drains.

Mon–Sat · houses, duplexes and units in Alhambra

Early houses

Census estimates count close to a quarter of Alhambra homes as built before 1940 (Census Reporter). The 2023 draft historic resources survey maps blocks where older houses still stand together (survey draft); the city notes its findings are recommendations (Historic Preservation).

Those houses often have two-handle faucets, older toilet tanks and drain parts in brass or galvanized steel. Most can still take replacement parts.

How old are Alhambra homes? About 77% built before 1980 Close to a quarter before 1940 Median year built: about 1960 (ACS 2020–2024).
Alhambra housing by age.

The postwar wave

The same survey draft highlights an early-1950s group of multi-family buildings around a cul-de-sac on S. Bushnell Avenue and Commonwealth Avenue as an example of postwar building (survey draft). Apartments and duplexes from that period are a big share of the city.

In those buildings, valves and traps in each unit tend to have aged together, so if one fails, its neighbors are often close behind.

And the water

The city's water quality report lists hardness from 160 to 290 ppm, typically 240, and notes that "Some households choose to install water softeners to reduce scaling and improve appliance efficiency" (city report).

Alhambra tap water hardness, 2025 report (ppm) 160290240 typical USGS "very hard" starts above 180 The whole reported range sits in the hard to very hard bands.
Alhambra hardness, typical and range.

Whether or not you soften, the small parts that move water, cartridges, fill valves and diverters, are where scale does its damage first.