The direct rolling-three-month Redfin ZIP resale observation presents a mixed liquidity picture rather than rental evidence. Median sold price was $798,320, up 3.34% year over year, while 43 homes sold and median marketing time was 53 days. Inventory was 82 homes and months of supply stood at 5.7. Sellers on average received 100.75% of list price, yet 38.13% of sales closed above list, so the sale-to-list signals are not uniform. This is a for-sale observation only; it does not describe rental transactions or establish pricing for an individual rental home. Annualized ZIP Zillow rent divided by that median sale price is 4.36%, a cross-source screening ratio only, not a measure of property-level economics.
Current Zillow ZORI for this ZIP is $2,901 per month, with a 2.61% year-over-year decline. ZORI is a typical observed asking-rent index blended across rental types, rather than a count of leases signed or a utility-inclusive tenant cost. For wider asking-rent context, Pasadena city is at $2,939, Los Angeles County is at $2,808, and the Los Angeles-Long Beach-Anaheim, CA metro is at $2,927; each is a wider geographic context rather than a substitute for the ZIP reading. The ZIP therefore sits slightly below the city and metro context values while remaining above the county context value, but those comparisons do not identify like-for-like buildings or bedroom mixes.
The rent path shows cooling in the recent window but not a uniformly declining longer record. Exact same-month Zillow ZORI change was negative 2.61% over one year, versus annualized gains of 1.16% over three years and 4.01% over five years. Recent direction therefore breaks from the positive longer path, rather than confirming it. Annualized variability in monthly returns was 1.98%, which supports more confidence in the continuity of the measured series than in a single month as a permanent level. Separately, the largest observed peak-to-trough decline was 4.06%, showing that modest current variability did not eliminate prior downward movement. History has 100% coverage. Transparent national discovery ranks among history-eligible ZIPs place stability at 119, momentum at 2,570, and the balanced measure at 1,677; these are backward-looking discovery tools, not forecasts or investment recommendations.
The five-digit label 91101 is both a Zillow ZIP market identifier and a matched Census ZCTA label. A ZCTA is a statistical area and is not identical to a USPS delivery ZIP. In the matched ACS five-year survey, occupied renter homes had median gross rent of $2,270, with a $71 margin of error; gross rent includes selected utilities. That survey median is 27.8% below the current ZORI asking-rent index. The gap is a source-universe difference: ACS describes occupied renter homes over a survey period, whereas ZORI describes a current typical asking-rent index. It should not be read as a concession estimate, lease-renewal result, or evidence that any available unit rents at either figure.
Bedroom figures are modelled estimates, not measured bedroom rents. They scale the ZIP ZORI using the local HUD ladder, producing monthly estimates of $2,250 for a studio, $2,398 for one bedroom, $2,901 for two bedrooms, $3,815 for three bedrooms, and $4,416 for four bedrooms. The local HUD FMR/SAFMR ladder is an administrative, bedroom-specific standard rather than asking rent; its two-bedroom standard is $3,070, placing the ZIP ZORI 5.5% below that benchmark. This relationship helps preserve the local bedroom ladder when translating the blended ZORI index, but it does not demonstrate what a specific studio, apartment, or house is offered for today.
The 30% required-income screen is arithmetic, not advice or an applicant qualification rule. A household would need $116,040 of annual income for the $2,901 monthly asking-rent index to equal 30% of income. The matched ACS median household income is $87,813, and the annualized asking-rent screen equals 39.64% of that median income. ACS also reports 4,650 of 9,760 renter households, or 47.64%, as spending 30% or more of income on gross rent. That burden measure concerns occupied renter households and utility-inclusive gross rent, while the current ZORI comparison uses asking rent. Neither measure proves a particular household's payment capacity or the burden associated with a particular available unit.
The matched ACS ZCTA has 12,408 housing units, of which 901 were vacant, producing a 7.26% vacancy rate across all vacancy categories. Renters account for 84.82% of occupied homes, and the housing stock includes 7,688 units in large multifamily structures. These figures provide a stock and occupancy backdrop for a renter-dominant area, but they are not a direct reading of available apartments in the current asking-rent index. In particular, an area-level vacancy rate cannot establish vacancy at a given building, floor plan, or unit, and the ACS stock universe should remain separate from Redfin's rolling resale inventory and sales flow.
The central tension is that the resale median price advanced while the ZIP asking-rent index declined over the latest year, yet the resale record also shows meaningful supply and a 53-day marketing period. That prevents either the rent history or the resale price change from resolving the affordability screen on its own. ZORI, ACS gross rent, HUD standards, and Redfin resales each answer different questions and should not be merged into a single property conclusion. Property-level review should verify the exact bedroom count, lease term, included utilities, concessions, listing availability date, and whether a comparable is a rental asking price or a closed resale. For a sale comparison, the recorded property type, condition, list-price history, and closing date also need checking before this ZIP-level evidence is applied to a specific address.