Published September 29, 2026 · Data: August 2024, August 2025, and August 2026
BROAD CITY CONTEXT: Alpharetta, Georgia
Broad city modeled-value context only. It does not establish a neighborhood, Lake Lanier, waterfront, luxury-segment, MLS, or property-specific result.
Alpharetta's Zillow ZHVI was $716,629 in August 2026, -0.2% from August 2025. Broad city context, not a home valuation.
August 2026 ZHVI
$716,629
Zillow citywide modeled value.
Latest 12-month change
-0.2%
August 2025 to August 2026.
The three-August record
Alpharetta's Zillow Home Value Index was $724,528 in August 2024, $718,009 in August 2025, and $716,629 in August 2026. The latest 12-month change was -0.2%, and the two-year change was -1.1%.
The August 2025-to-2026 movement is close to flat. That is a reason to examine the actual comparable set, not to declare every property unchanged.
What the model measures
Zillow describes ZHVI as a seasonally adjusted, smoothed estimate of the typical home value in the 35th to 65th percentile range. It is not a median closed sale price, appraisal, listing-price series, investment return, or property valuation.
This study analyzes three reported city month-end observations. It does not isolate a neighborhood, waterfront, Lake Lanier, luxury segment, property type, or seller concession.
The reported value is a citywide model rather than a transaction-level sale series. Its usefulness is in setting context and prompting a current review, not in replacing the evidence needed for a specific home.
The practical next question
For a purchase, compare the specific homes, terms, property form, maintenance obligations and current alternatives that meet the actual need. For a sale, use a dated, property-specific competitive review rather than applying a broad index change to a prior price.
Ashley Smith can use the city context as an opening briefing, then move to the documents and current evidence that support a specific decision.
The report's period and scope matter as much as its number. Alpharetta is used here as a broad public reporting area. A smaller area, a particular property form, and an individual home can follow a different path.
A dated city indicator has value when it improves the questions asked. It should never replace a current review of the particular home, its competition and the evidence supporting its use.
The source numbers
3 analyzed city-level Zillow ZHVI month-end observations: August 2024, August 2025, and August 2026.
On a small screen, scroll the table horizontally to see every column.
| August | ZHVI | Change from prior August |
|---|---|---|
| 2024 | $724,528 | Baseline |
| 2025 | $718,009 | -0.9% |
| 2026 | $716,629 | -0.2% |
How we calculated it
Filter Zillow's all-homes, seasonally adjusted city ZHVI file to the exact Georgia city.
Use the three reported August month-end values.
Calculate percent change as (later minus earlier) divided by earlier, rounded to one decimal.
- 2025 to 2026 ZHVI change: (716628.5168465282 - 718008.613113351) / 718008.613113351 × 100 = -0.2%
- 2024 to 2026 ZHVI change: (716628.5168465282 - 724527.6958464514) / 724527.6958464514 × 100 = -1.1%
What this can and cannot tell us
- Broad city modeled-value context only. It does not establish a neighborhood, Lake Lanier, waterfront, luxury-segment, MLS, or property-specific result.
- ZHVI is Zillow's modeled, smoothed, seasonally adjusted typical-value estimate for homes in the 35th to 65th percentile range.
- ZHVI is not a median closed sale price, appraisal, investment return, listing-price series, or property valuation.
Sources
- Zillow city all-homes seasonally adjusted ZHVI
Zillow Research · Retrieved 2026-09-29 - Zillow Research data documentation
Zillow Research · Retrieved 2026-09-29
Put the findings in context
Alpharetta home value context: start with the timelineA broader market report is a starting point. Talk with Ashley about the recent comparable sales and property details that matter for your plans.