Cooling is the immediate tension in the ZIP: Zillow ZORI is $1,722 in June 2026, a 1.08% decline from the same month a year earlier. Yet the exact same-month history still records 1.07% annualized growth over 3 years and 4.02% over 5 years. The 1-year direction therefore breaks, rather than confirms, the longer upward path. The direct Zillow series has 100% coverage. Its annualized monthly-return variability was 3.18%, and its maximum decline from a prior peak was 2.36%. These backward-looking measures support some confidence that one current snapshot has not historically been marked by extreme swings, but they are not forecasts or investment recommendations. Transparent national discovery ranks among history-eligible ZIPs were 2,458 for momentum, 1,894 for stability, and 2,576 for the balanced measure; lower ranks are higher.
The 27705 label is both a Zillow ZIP market identifier and a matched Census ZCTA. A ZCTA is a statistical area, not identical to a USPS delivery ZIP. Zillow's ZORI is a typical observed asking-rent index at the ZIP level, blended across rental types; it is not a survey median of occupied homes. In contrast, the ACS 2024 5-year estimate reports a $1,539 median gross rent for occupied renter homes, with a $68 margin of error, and gross rent includes selected utilities. The current ZORI is 11.89% above that ACS median. This gap is a source-universe difference as well as a price-level comparison, so neither series substitutes for a quoted rent on a particular listing.
The bedroom view is intentionally modelled rather than observed. Scaling ZIP ZORI by the local HUD ladder produces modelled monthly estimates of $1,426 for a studio, $1,517 for one bedroom, $1,722 for two bedrooms, $2,131 for three bedrooms, and $2,543 for four bedrooms. The local FY2026 HUD two-bedroom FMR is $1,711, below the modelled two-bedroom figure. HUD FMR/SAFMR is an administrative, bedroom-specific standard, not asking rent, and the listed bedroom figures are modelled estimates rather than measured bedroom rents. The ladder organizes the index for comparison; it cannot establish the rent, size, condition, utility treatment, or availability of an individual home.
At the index level, a $68,880 required income follows from the 30% screen. This is arithmetic, not advice or an applicant qualification rule. The matched ZCTA's ACS median household income is $73,066, so the index-to-income calculation is 28.28%. It joins unlike summaries—an asking-rent index and a household-income survey—not a household budget. Separately, ACS classifies 47.25% of occupied renter households as spending at least 30% of income on gross rent. This is an area-level survey result, and gross rent includes selected utilities; it cannot prove affordability, burden, or eligibility for a specific renter or unit.
The ACS stock picture frames that burden result without turning vacancy into availability. The matched ZCTA has 25,051 housing units, including 2,373 vacant, for a 9.47% vacancy rate. Renter-occupied homes account for 55.49% of occupied units, and 815 vacant units are classified as for rent. These are five-year survey classifications, not a live inventory, and no vacancy field proves that a particular home is available, habitable, or priced at the index. The tenure and vacancy measures describe the composition of the statistical area, while the for-rent classification cannot reveal listing-level timing, bedroom count, lease terms, condition, or concessions.
Wider benchmarks reinforce the ZIP-versus-context distinction. For current Zillow rental-index context only, the Durham city-context value is $1,699.68, the Durham County-context value is $1,690, and the Durham-Chapel Hill, NC metro-context value is $1,691; each is below the ZIP index but covers a wider geography. In ACS all-housing context, Durham city and Durham County show lower renter shares and lower vacancy rates than the ZIP. The metro reports apartment vacancy, a different stock universe from the ZCTA's all-housing vacancy, so it is not a like-for-like rate. City, county, and metro figures are comparators only, not evidence of conditions in a building, block, or available home.
The decision boundary is therefore the contrast between a recent index decline and positive longer historical changes, alongside a ZIP index above wider context values and a substantial ACS burden share. None identifies what a landlord will quote or accept. Before applying these area measures to a property, the concrete checks are the advertised rent, bedroom count, whether selected utilities are included, the lease length and concessions, availability date, address geography, and the applicable HUD standard. Confirming the exact listing also resolves whether the home belongs in the rental-type mix represented by ZORI. The evidence is historical or area-level where stated; what does the specific listing show once those scope and contract details are verified?
","findings":[{"body":"Zillow's current index declined over the 1-year same-month comparison, even though its 3-year and 5-year annualized paths remain positive. That makes the immediate signal a break from, not continuation of, the longer increase. Historical return variability and drawdown were limited in the recorded series, which supports cautious interpretation of the current level but does not make the history predictive.","title":"Recent cooling breaks the longer path"},{"body":"ZORI, ACS median gross rent, and HUD FMR/SAFMR have different populations and purposes. ZORI blends observed asking rents across rental types; ACS summarizes occupied renter homes and includes selected utilities; HUD is an administrative bedroom standard. The ZIP's higher index relative to ACS rent should therefore be read as a comparison across evidence universes, not as a discrepancy requiring one source to be wrong.","title":"ZORI, ACS, and HUD measure different universes"},{"body":"The modelled bedroom ladder uses local HUD proportions to distribute the ZIP ZORI from studio through four bedrooms. It is a consistent comparison device, not a set of observed bedroom medians. The 30% required-income calculation is likewise simple arithmetic against a broad income statistic. The ACS burden share adds area-level evidence about renter households but cannot identify the circumstances or qualification of an individual applicant.","title":"The bedroom ladder and income screen are model outputs"},{"body":"ZCTA housing data show a renter-majority occupied stock and a vacancy rate above the city and county all-housing context rates. The count classified as vacant for rent is informative about survey composition but does not establish live availability. Metro apartment vacancy is a different universe still. A property decision needs listing-specific rent, utilities, lease, timing, location, and bedroom details.","title":"Vacancy is survey composition, not confirmed availability"}],"risks":["Geographic matching is imperfect: Zillow's market is labelled with a ZIP, whereas ACS uses a matched ZCTA statistical area. A ZCTA does not equal a USPS delivery ZIP, so boundaries and represented households can differ.","Bedroom amounts are modelled by applying a local HUD ladder to a blended ZIP asking-rent index. They cannot establish a property's measured rent, physical size, condition, included utilities, availability, or concessions.","ACS rent, income, burden, tenure, and vacancy evidence is a five-year survey of occupied or classified housing, with reported margins of error where supplied. It is not a live listing feed or a determination about any tenant.","Historical ZORI movements, drawdown, variability, coverage, and discovery ranks describe observations ending in June 2026. The recent decline and older growth rates are backward-looking only and do not provide a forecast, investment recommendation, or guarantee of future pricing."],"qa":[{"a":"Zillow ZORI is a typical observed asking-rent index across rental types at the ZIP level. ACS median gross rent is a five-year survey statistic for occupied renter homes and includes selected utilities. Because the series differ in population, rent concept, and time construction, their numerical gap is descriptive rather than proof of an error or a listing-level spread.","q":"Why is the ZIP current ZORI higher than the ACS median gross rent?"},{"a":"No. The studio through four-bedroom amounts are modelled monthly ZIP estimates created by scaling the ZIP ZORI with the local HUD ladder. HUD FMR/SAFMR is an administrative bedroom-specific standard, not an asking-rent observation. These amounts cannot establish a particular unit's actual rent, included utilities, size, condition, or availability.","q":"Are the bedroom figures observed rents for studio through four-bedroom homes?"},{"a":"The same-month history shows a negative most-recent annual change alongside positive annualized changes over the intermediate and longer windows. That is a recent break from the longer path. Complete recorded coverage and limited historical variability describe measurement history through the endpoint, but they do not state why rents changed or predict subsequent movements.","q":"What does the history say about the current cooling signal?"},{"a":"An individual listing requires evidence outside these area metrics: the advertised price, bedroom count, address and ZIP treatment, utility inclusion, lease length, concessions, and availability date. The relevant HUD standard also depends on its stated geography and bedroom definition. Vacancy, burden, ZORI, and ACS summaries cannot by themselves resolve those property-level facts.","q":"What remains unresolved for a specific rental listing?"}],"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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