A house on Waldo Avenue tells the story better than any chart. Listed at $3,295,000, it sold days later for $3,850,000, more than half a million dollars over its asking price. A few blocks over, on Blair Avenue, a Craftsman built in 1896 drew 15 offers within two weeks and went pending the same morning a local walking group toured it. Meanwhile, in 2025, homes in the surrounding Oakland hills, many carrying the same 94611 ZIP code, lost more than 15 percent of their value.
Same ZIP code. Same hills. Opposite trajectories. That split is the story worth understanding if you are comparing Piedmont to the neighborhoods around it, because the reasons behind it are structural, not sentimental, and they are unlikely to resolve on their own.
One ZIP Code, Two Markets
Piedmont is a roughly 1.7-square-mile incorporated city that sits entirely inside the 94611 ZIP code, surrounded on all sides by the city of Oakland. Most portals report on the ZIP code as a whole, which blends Piedmont's numbers with adjacent Oakland hill neighborhoods that share a mailing address but not a city government.
Local market watchers who track the two halves separately found a wide gap in 2025. Piedmont itself posted the largest average sale price increase of any nearby East Bay market that year, up 18.3 percent, with median sale price up 9.8 percent and average price per square foot up 6.8 percent. The Oakland portion of the same ZIP code, meanwhile, saw declines of more than 15 percent across average and median sale price, price per square foot, and total properties sold, a pattern that Walking on Wednesdays, a Piedmont Recreation Department group that gets market briefings from local brokers during its walks, attributed to the area's hilly, forested terrain and to homeowners growing more cautious as fire insurers pull back from high-severity zones.
Redfin's data for the three months ending May 2026 confirms the trend from the other direction. Piedmont's median sale price reached $3.1 million over that window, up 9.8 percent year over year, with price per square foot up 19.4 percent and homes averaging just 12 days on market. Forty-three homes sold in Piedmont in May 2026 alone, up from 27 in May 2025.
What the Line on the Map Actually Buys
Piedmont incorporated in 1907 specifically to keep its own government rather than be absorbed into Oakland, and more than a century later that separation still shapes day to day life inside the city limits. Piedmont runs its own fire department, its own police department, and its own school district, distinct from the services Oakland provides just across the street.
That distinction matters more this year than most, because California's insurance market for hillside homes shifted twice in 2026. The state's one-year moratorium on wildfire-related non-renewals expired on January 7, 2026, and the FAIR Plan, the insurer many hillside owners fall back on, is raising rates by 29.1 percent starting October 15, 2026, with insurers now leaning more heavily on satellite imagery to make renewal decisions rather than periodic inspections, according to East Bay property management reporting on the 2026 insurance market. Oakland's fire-prone hill neighborhoods, including areas like Montclair and Piedmont Pines, sit squarely inside the hazard zones driving those non-renewals, a pressure residents and city officials have been raising with the state insurance commissioner for several years, according to reporting from The Oaklandside. Homeowner advocacy group United Policyholders has documented similar non-renewals reaching longtime Oakland hills residents even on homes that survived the 1991 firestorm outright.
None of this means every Piedmont address is immune to fire risk or that every Oakland hills address is uninsurable. It means the two markets are absorbing a very different set of pressures this year, and buyers weighing a Piedmont address against a similarly priced Oakland hills address are weighing more than square footage and school assignment. They are weighing which side of an incorporation line their future insurance renewal will fall on.
The boundary carries a second, quieter cost too. Piedmont residents also help fund their school district directly, through voter-approved parcel taxes that contribute roughly $9 million a year, nearly a third of the district's budget, on top of the base property tax rate that applies statewide. It is a cost that comes with living inside the city limits, not a judgment on the schools themselves, and worth factoring into any comparison of what a Piedmont address actually costs to hold year over year.
A Market Too Small to Behave Like a Big One
The other force behind Piedmont's swings is simpler: there just are not many houses. Piedmont has fewer than 4,000 homes total, and the city is almost entirely built out, so annual sales volume runs in the low hundreds rather than the thousands that larger cities post. Roughly 108 homes sold in Piedmont in 2024 and 109 in 2025, a nearly flat count. Yet by early 2026, per the same March market recap, median price per square foot had already climbed to $1,108, up from $1,028 for all of 2025, a reminder that in a market this thin, a handful of high-end sales can move the median before the year is even half over.
The spread inside that small sample is wide. Walking the neighborhood in March 2026, market watchers passed:
- 15 Blair Avenue, a 4 bedroom, 4-plus bath updated Craftsman built in 1896, listed at $3,040,000 and pending within two weeks after 15 offers
- 136 Waldo Avenue, a 3,173 square foot classic-design home built in 1927, listed at $3,295,000 and sold days later for $3,850,000
- 15 Mesa Avenue, a 2,780 square foot updated Craftsman built in 1908, listed at $2,328,000 with an open house and multiple offers expected
- 633 Moraga Avenue, a 4 bedroom, 3.5 bath home built in 1962 and listed at $1,648,000, priced lower in part because a busy street can reduce buyer interest even within the same city
That range, from $1.6 million to $3.85 million among four homes walked in a single morning, is exactly why a single median headline understates how differently individual Piedmont properties behave. Location within the city, lot condition, and even proximity to a busier street move the number as much as the citywide trend does.
Two Reasons More Sellers Are Willing to Move
Two policy and rate shifts are quietly loosening inventory that had been sitting still for years.
The first is Proposition 19, which lets homeowners 55 and older carry their existing Proposition 13 tax basis to a new home purchase anywhere in California. For longtime Piedmont owners who bought decades ago and have watched their assessed value stay far below market value, that portability removes one of the biggest financial penalties that used to come with downsizing or relocating closer to family.
The second is a shift in how normal higher mortgage rates now feel. For the first time in several years, roughly equal numbers of Piedmont homeowners carry mortgages above 6 percent and below 3 percent, according to the same March 2026 market recap. When a rate around 6 percent stops feeling like an outlier and starts feeling like the norm, owners who had been holding off on a move purely to protect a low rate become more willing to list. That shift is visible in the raw count too, with May sales climbing from 27 in 2025 to 43 in 2026.
What This Means If You're Weighing Piedmont Against Its Neighbors
If you are comparing a Piedmont address to one just outside the city line, the median price gap you see on a portal is real, but it is not the whole comparison. It is worth asking what fire insurance looks like on the specific address, what the city versus non-city parcel tax picture is, and how a home's exact street, not just its ZIP code, has traded in the past year. A thin market rewards that kind of specific homework far more than it rewards a citywide average.
A Few Questions We Hear Often
Does the ZIP code split mean parts of the area are simply safer from fire than others? It means the two markets are governed by different fire departments and are subject to different insurance underwriting this year, not that risk stops precisely at a city line. Anyone comparing addresses in this area should ask directly about current insurability rather than assume based on ZIP code alone.
If prices are rising, why are homes still selling in under two weeks? A thin, well-prepared market tends to move fast at the top end precisely because buyers know inventory will not sit. Twelve days on average, per Redfin's data for the three months ending May 2026, is consistent with a market where well-priced homes draw immediate, competitive attention rather than lingering.
Is this a good year for a longtime owner to finally list? Proposition 19 portability and the normalization of mortgage rates in the 6 percent range appear to be part of why more longtime owners came to market this spring, with May sales up from 27 to 43 year over year. Whether it is the right year for a specific household depends on the home's condition, the owner's next move, and current comparable sales on that exact street, which is exactly the kind of groundwork worth doing before a home goes live.
If you are weighing a move within Piedmont, into it, or out of the surrounding hills entirely, Anian Tunney and Adrienne Krumins can walk you through what a specific address is actually facing this year, from insurance to inventory to the comparable sale two doors down.