ZIP 94538 presents a measured split between advancing asking rent and softer resale pricing. Zillow’s current ZIP asking-rent index is $3,122 per month, up 3.9% from the same month a year earlier, while the Redfin ZIP median sold price is $1,289,709, down 11.4% year over year. Those directions describe different evidence universes rather than a single market verdict: the former is rental asking-rent evidence and the latter is for-sale evidence. The contrast challenges any simple reading of current rent strength as confirmation of resale pricing, affordability, or a forward outcome.
Backward-looking Zillow rent history shows a one-year exact same-month change of 3.9%, a three-year annualized change of 2.4%, and a five-year annualized change of 3.8%. Recent direction therefore confirms the longer positive path while running faster than the slower three-year pace. Annualized monthly-return variability of 2.2% indicates relatively limited month-to-month movement in the observed index, which supports somewhat more confidence in the current snapshot than a highly volatile series would. Separately, the maximum drawdown was 5.7%, documenting that declines still occurred. Coverage is 100% across 116 observations. Transparent national discovery ranks are 939 for momentum, 314 for stability, and 304 for the balanced measure among history-eligible ZIPs, where a lower rank is higher; they organize past measurements and are not predictions.
The five-digit label 94538 is both Zillow’s ZIP market identifier and a Census ZCTA match. A ZCTA is a statistical area and is not identical to a USPS delivery ZIP. Zillow ZORI is a typical observed asking-rent index blended across rental types, whereas ACS median gross rent is a five-year survey measure for occupied renter homes that includes selected utilities. The matched ZCTA’s ACS median gross rent is $2,860, with a $63 90% margin of error, so it should not be substituted for the current asking-rent index. HUD FMR/SAFMR is instead an administrative, bedroom-specific standard, not asking rent. Scaling ZIP ZORI by the local HUD ladder produces modelled monthly estimates of $2,153 for a studio, $2,579 for one bedroom, $3,122 for two bedrooms, $3,988 for three bedrooms, and $4,134 for four bedrooms; these are modelled estimates, never measured bedroom rents. The FY2026 HUD two-bedroom standard is $3,604.
At the current ZIP asking-rent index, the 30% required-income screen equals $124,880 annually. Against the matched ZCTA’s $147,301 median household income, the simple asking-rent-to-income calculation is 25.4%. That screen is arithmetic, not advice and not an applicant qualification rule. The ACS burden measure adds a separate retrospective household perspective: 5,681 of 13,057 renter households, or 43.5%, were estimated to pay 30% or more of income toward rent. Neither the income comparison nor the burden share establishes what a particular household can pay or what any individual unit will cost.
The matched ZCTA contains 24,854 housing units, of which 1,226 were vacant, producing a 4.9% vacancy rate. Renters occupy 55.3% of occupied homes, making renter households the larger tenure group in this statistical area. The structure mix includes 13,015 single-family units and 7,681 units in larger multifamily buildings, while 682 vacant units were classified as vacant for rent. These stock and vacancy counts frame aggregate supply conditions, but they do not establish current availability, lease terms, condition, or pricing for a particular rental home.
Broader figures remain context only: Fremont city-context rent is $3,308, Alameda County context rent is $2,895, and San Francisco-Oakland-Berkeley metro-context rent is $3,301. The ZIP’s direct asking-rent index is therefore below the named city and metro context values but above the county context value. These city, county, and metro comparisons use wider geographies and cannot replace the ZIP asking-rent index, the matched ZCTA survey results, or property-specific evidence. Their main use here is to show that the ZIP’s rent reading sits between its county context and its city and metro contexts.
Redfin’s direct rolling-three-month ZIP resale observation supplies the for-sale side of the tension, not rental transactions. The median sold price was $1,289,709 after an 11.4% annual decline; 90 homes sold with a median 18 days on market. Inventory was 83 homes, up 29.4%, and months of supply stood at 2.8. Resale-liquidity signals were still active: the average sale-to-list ratio was 102.9%, and 55.7% of sales closed above list. Annualized ZIP ZORI divided by the median sold price equals a 2.90% cross-source screening ratio only, not a property-specific economic measure. Falling sold prices challenge the positive rent history and income screen, while the marketing and sale-to-list signals caution against treating the price decline as a complete description of ZIP resale conditions.
The central limitation is that each source measures a different population, time frame, and transaction stage. ZORI tracks asking rents, ACS reports surveyed occupied renter homes, HUD sets administrative standards, and Redfin records completed ZIP resale activity. A property-level file would need live effective asking-rent comparisons for the exact bedroom count, concessions, included utilities, lease duration, unit condition, and availability date. It would also need sale comparables matched for sale timing, property type, condition, and listing-to-closing details. The useful question is whether those direct property facts align with the aggregate rent, burden, stock, and resale signals rather than whether any one series can answer every rental decision.
","findings":[{"body":"The one-year Zillow rent increase exceeds the three-year annualized pace and is close to the five-year pace, indicating recent strengthening within a longer upward history. Low measured monthly variability makes the present ZORI reading more informative than a highly erratic index would be, yet the recorded maximum drawdown confirms that the index has experienced meaningful setbacks.","title":"Rent history is positive but not linear"},{"body":"The arithmetic 30% required-income screen falls below the matched ZCTA median household income, but ACS also estimates that a substantial share of renter households pay at least 30% of income toward rent. The first comparison is a current rent-to-income calculation; the second is a five-year survey measure of occupied renter households and is not unit-level evidence.","title":"Income screen and renter burden point to different questions"},{"body":"Renters represent a majority of occupied homes in the matched ZCTA, and the housing stock includes both single-family and larger multifamily structures. The reported vacancy rate and vacant-for-rent count provide a broad stock snapshot, but neither statistic identifies currently available units, their effective rents, their condition, or the concessions attached to a lease.","title":"Renter presence is substantial, while vacancy remains aggregate evidence"},{"body":"Redfin’s direct ZIP resale evidence shows a lower median sold price than a year earlier even as ZIP asking rent increased. At the same time, short marketing time, above-list sales, and a sale-to-list ratio above 100% show active resale transaction signals. The annualized-rent-to-sold-price calculation is useful only as a cross-source screen, not as a property-specific result.","title":"Resale evidence complicates the rent signal"}],"risks":["The Zillow asking-rent index is blended across rental types, so a current ZIP reading may not match the bedroom count, condition, utilities, concession structure, lease term, or availability date of a specific rental listing.","ACS median gross rent, household income, renter burden, and vacancy are matched-ZCTA five-year survey measures with sampling uncertainty; they do not describe a current individual household, building, or unit.","The modelled bedroom ladder scales the ZIP asking-rent index with HUD standards. It is not a set of observed bedroom rents and should not be treated as direct rental comparable evidence.","Redfin resale observations describe completed for-sale activity over a rolling period. They cannot establish rental transaction prices, property-level operating outcomes, or future movements in either sales or rents."],"qa":[{"a":"They are measuring separate markets and transaction stages. Zillow ZORI records a blended ZIP asking-rent index, while Redfin records completed ZIP home sales over a rolling three-month period. A rising asking-rent reading alongside a lower median sold price is therefore a measured tension, not proof that either series is incorrect or that one determines the other.","q":"Why do the asking-rent and resale indicators point in different directions?"},{"a":"No. The bedroom figures are modelled ZIP estimates created by scaling the overall ZIP ZORI using the local HUD bedroom ladder. HUD FMR or SAFMR is an administrative bedroom-specific standard rather than an asking-rent observation. Actual listings can differ by layout, condition, utilities, concessions, lease terms, and timing.","q":"Are the bedroom figures actual observed rents for studios through four-bedroom homes?"},{"a":"It divides annualized ZIP ZORI by Redfin’s ZIP median sold price to create a simple cross-source screening ratio. It does not include building-level costs, financing, taxes, insurance, maintenance, vacancy experience, concessions, or actual lease income. It therefore cannot describe a specific home’s economics or a future outcome.","q":"What does the rent-to-sold-price screening ratio show?"},{"a":"Useful direct checks include current effective asking rents for comparable bedroom counts, advertised concessions, included utilities, lease length, exact availability, and unit condition. For resale evidence, relevant checks include comparable sale dates, property type, condition, renovation differences, listing history, and the relationship between each listing price and closing price. These facts are needed because ZIP and ZCTA aggregates cannot stand in for a particular property.","q":"What property-level information would test the aggregate signals most directly?"}],"sources":[{"key":"apartment_list_time_on_market","name":"Apartment List Time on Market — listing liquidity","release":"Apartment List 2026-07","pulledAt":"2026-08-08","url":"https://www.apartmentlist.com/research/category/data-rent-estimates"},{"key":"apartment_list_vacancy","name":"Apartment List Vacancy Index — rental vacancy","release":"Apartment List 2026-07","pulledAt":"2026-08-08","url":"https://www.apartmentlist.com/research/apartment-list-vacancy-index-methodology"},{"key":"census_zcta_facts","name":"Census ACS five-year — ZCTA housing and income","release":"ACS 2024 5-year ZCTA","pulledAt":"2026-08-08","url":"https://api.census.gov/data/2024/acs/acs5.html"},{"key":"hud_zip","name":"HUD USPS crosswalk and Small Area FMRs — ZIP rent fallback","release":"ZIP-CBSA 2025Q4 + SAFMR 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