Apartment buildings in 91101, Pasadena
By Shaya Lowenstein, Senior Associate at Lyon Stahl Investment Real Estate, CA DRE #01942326. From the 2025 LA County assessor roll, transfers through January 17, 2025.
ZIP code 91101 in Pasadena has 541 parcels with two or more units, 7,702 units in all, on the 2025 Los Angeles County assessor roll. Half of them were built in 1940 or earlier, and 501, or 93%, in 1978 or earlier. 176 parcels, 33%, have not been reassessed on a sale since 1995 or earlier, and 36 last changed hands in 2024.
- Parcels with 2 or more units
- 541
- Units in those parcels
- 7,702
- Median year built
- 1940
- Built in 1978 or earlier
- 501
- Median Prop 13 base year
- 2004
- Base year 1995 or earlier
- 176
- Last transfer in 2024
- 36
What the buildings in 91101 Pasadena look like.
91101 Pasadena leans toward larger buildings. 348 of the 541 parcels hold five units or more, which puts them in commercial lending and commercial pricing rather than the residential market.
The average parcel here holds 14.2 units. 23 parcels hold 50 units or more. The largest ones are listed further down this page, each with its own public record.
| Size | Parcels | Share |
|---|---|---|
| Two to four units | 193 | 36% |
| Five to nine units | 146 | 27% |
| 10 to 19 units | 121 | 22% |
| 20 to 49 units | 58 | 11% |
| 50 units or more | 23 | 4% |
How old they are.
Half the apartment parcels in 91101 Pasadena were built in 1940 or earlier. 501 of 541, about 93%, went up in 1978 or before.
Across the 255 ZIP codes on this site that share is 89%, so 91101 Pasadena has a larger share of older buildings than the average. Older buildings tend to carry the questions a buyer will ask about, like plumbing, electrical, the roof and whether the building needs a seismic retrofit.
Rent control in 91101 Pasadena.
The City of Los Angeles rent ordinance does not cover 91101 Pasadena. 501 of the parcels here were built in 1978 or earlier, and age is usually the first thing a local rent rule looks at.
Pasadena has its own rent stabilization ordinance, so the city's rules decide how much rent can go up and when a tenant can be asked to leave. Read those before you price a building here.
How long owners hold.
The median Prop 13 base year for apartment parcels in 91101 Pasadena is 2004. A base year resets when a building sells, so an old one usually means the same owner or the same family has held it a long time.
176 parcels, 33%, still carry a base year of 1995 or earlier. The figure for all 255 ZIP codes here is 28%, so owners in 91101 Pasadena have held longer than the average.
Long-held buildings often pay property tax on a value set decades ago. When they sell, the new owner is taxed on the price, which is part of why rents and expenses on these buildings need a close look before anyone sets a price.
How often buildings sell.
By last recorded transfer, 44 apartment parcels in 91101 Pasadena changed hands in 2022, 27 in 2023 and 36 in 2024.
That is 6.7% of the parcels here, against 7.3% across all 255 ZIP codes, so buildings here turned over at about the same rate as the average.
A building that sold twice in those years shows up once, in its later year, and a transfer is not always a sale at market. A move into a trust or between family members is recorded too.
| Year | Parcels |
|---|---|
| 2022 | 44 |
| 2023 | 27 |
| 2024 | 36 |
The largest apartment buildings in 91101 Pasadena.
- 621 E Colorado Blvd, Pasadena 91101304 units, built 2005
- 375 E Green St, Pasadena 91101276 units, built 2002
- 801 E Walnut St, Pasadena 91101214 units, built 2001
- 280 N Oakland Ave, Pasadena 91101181 units, built 2023
- 261 N Madison Ave, Pasadena 91101180 units, built 2006
- 275 Cordova St, Pasadena 91101150 units, built 1966
- 235 E Holly St, Pasadena 91101144 units, built 1910
- 290 N Hudson Ave, Pasadena 91101140 units, built 2002
- 325 Cordova St, Pasadena 91101135 units, built 2002
- 404 S Marengo Ave, Pasadena 91101134 units, built 1987
- 708 E Colorado Blvd, 08 Nordi, Pasadena 91101120 units, built 2004
- 686 E Union St, Pasadena 91101118 units, built 2015
See every apartment building in 91101 Pasadena with units, square footage, year built and assessed value for each one.
Questions owners ask about 91101 Pasadena.
How many apartment buildings are in 91101 Pasadena?
The 2025 Los Angeles County assessor roll lists 541 parcels with two or more units in ZIP code 91101 in Pasadena, with 7,702 units between them. 193 hold two to four units and 348 hold five or more.
How old are the apartment buildings in 91101 Pasadena?
The median build year is 1940. 501 of the 541 parcels, about 93%, were built in 1978 or earlier.
Are apartments in 91101 Pasadena under rent control?
The City of Los Angeles rent ordinance does not cover 91101 Pasadena. 501 of the parcels here were built in 1978 or earlier, and age is usually the first thing a local rent rule looks at. Pasadena has its own rent stabilization ordinance, so the city's rules decide how much rent can go up and when a tenant can be asked to leave. Read those before you price a building here.
How often do apartment buildings sell in 91101 Pasadena?
44 parcels show a last recorded transfer in 2022, 27 in 2023 and 36 in 2024. A building that sold twice counts once, in its later year.
How long do owners hold apartment buildings in 91101 Pasadena?
The median Prop 13 base year is 2004, and 176 parcels, 33%, have a base year of 1995 or earlier. That usually means the same owner or family for 30 years or more.
What is my apartment building in 91101 Pasadena worth?
It depends on the rents, the expenses, the condition and which rent rules apply, so a number from a website is a guess. Send me the address and I will give you a value based on recent sales nearby and what your building actually earns. There is no charge.
Type your address. You get the county record for it right here, and I will send you a value based on recent sales nearby if you want one.
Thinking about selling? Read how I sell apartment buildings in Los Angeles or ask for a free valuation.
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Where these numbers come from.
- Every count is from the 2025 Los Angeles County assessor roll and counts parcels the assessor lists with two or more units. A parcel can hold more than one building.
- The sale years are the most recent recorded transfer on each parcel, through January 17, 2025. A transfer into a trust or between family members is recorded the same way as a sale.
- The base year is the year Prop 13 last set the parcel's land value, which happens when it changes hands. Values set before 1975 show as 1975.
- Rent control and soft-story figures cover the City of Los Angeles only and come from the city's zoning map and permit data. Rent control is worked out from the build year, not taken from the Housing Department's list.
- The numbers were taken from the roll on October 27, 2026. Download every area as a CSV file.
/// HOW TO CITE THIS
Shaya Lowenstein, "Apartment buildings in 91101, Pasadena," Shaya Lowenstein, October 27, 2026, https://www.shayarealestate.com/apartment-buildings/91101. Figures from the 2025 Los Angeles County assessor roll.
Shaya Lowenstein, CA DRE #01942326, Lyon Stahl Investment Real Estate. Public record figures, offered as research and not as an appraisal of any one building.