Piedmont vs Rockridge, Oakland
Piedmont carries an effective property tax rate of 1.25% of assessed value and Rockridge, Oakland carries 1.36%, both for fiscal year 2025-26. On one identical reference loan the monthly carrying costs are $9,960 and $10,104 — $144 apart, with Piedmont lower. To Oakland City Center at AM peak the fastest published commutes are 15 min by car from Piedmont and 12 min by BART from Rockridge, Oakland. Every figure is an objective public metric or arithmetic on one, and names its source.
Piedmont (Alameda County) · Rockridge, Oakland (Alameda County)
| Metric | Piedmont | Rockridge, Oakland | Difference |
|---|---|---|---|
| Median $/sqft (SFR) | $1,200 | $1,000 | +$200 |
| Effective tax rate | 1.25% | 1.36% | −0.108% |
| Monthly cost, reference loan | $9,960 | $10,104 | −$144 |
| FiDi SF (Montgomery St BART) — BART | 35 min | 25 min | +10 min |
| FiDi SF (Montgomery St BART) — Drive | 35 min | 35 min | 0 min |
| Oakland City Center (12th St BART) — BART | 20 min | 12 min | +8 min |
| Oakland City Center (12th St BART) — Drive | 15 min | 15 min | 0 min |
| Sunnyvale / Mountain View (Sunnyvale Caltrain) — Drive | 65 min | 70 min | −5 min |
Difference is Piedmont minus Rockridge, Oakland. Sources are cited on each submarket page.
Rockridge is the cheaper foot by $200, 17% below Piedmont. What that buys is a different house, not a different bill: at $1,600,000 the two are $144 apart a month at 1.25% and 1.36%.
Square footage per dollar
Lower Piedmont near Grand Avenue or Oakland Avenue holds the $1.4M inventory. $1.4M in Rockridge is a 1910s-20s Craftsman bungalow, 1,400-1,700 sq ft, on a 4,000-5,000 sq ft lot. The median foot costs $1,200 in Piedmont against $1,000 in Rockridge; on a 2,000 sq ft house that is $400,000 of purchase price.
What the bill looks like
Modelled the same way in both ($1,600,000 purchase, 20% down, 6.5% fixed, $2,400 insurance, dues excluded), Piedmont totals $9,960 a month at 1.25% and Rockridge $10,104 at 1.36% — tax lines of $1,669 and $1,813. Piedmont's municipal services tax adds $600-$1,200 a year on top of the school levy. Oakland library, parks, paramedic and school parcel taxes stack $800-$1,500 a year on a Rockridge parcel. Neither figure includes dues or a district assessment, and both belong on the worksheet before an offer.
Commute, measured
To FiDi SF (Montgomery St BART): 35 minutes by BART from Piedmont, 25 by BART from Rockridge — a 10-minute edge to Rockridge, or 1.7 hours across a ten-trip week. To Sunnyvale / Mountain View (Sunnyvale Caltrain): 65 minutes by driving from Piedmont, 70 by driving from Rockridge — a 5-minute edge to Piedmont, or 0.8 hours across a ten-trip week. Door to door from Piedmont to FiDi is 40-50 minutes. Rockridge BART is 15 minutes to Embarcadero and 12 to Montgomery.
What the disclosure stack holds
The two carry different disclosure files, and the premium follows the file. Upper Piedmont along Blair and Hampton sits at the edge of the 1991 fire footprint and is mapped High. The Hayward Fault runs along the Rockridge hill base, and the bungalows carry brick foundation and knob-and-tube disclosures. Pull the parcel's own mapping — CAL FIRE severity zone, FEMA flood panel, CGS liquefaction zone — and get a written quote before the contingency date.
Which search this actually is
Piedmont fits a requirement to be inside Piedmont's municipal boundaries specifically. Rockridge suits a buyer who prefers a 1920s house to new construction. The decision is which requirement is load-bearing, because neither submarket satisfies both lists.
Sources. Tax figures come from Alameda County Tax Rates by TRA FY 2025-26, composited in build/assets/metrics.json. They are county-level and not yet verified at the TRA, so the parcel's bill governs. Travel times are AM-peak door-to-door estimates from data/commute/static.csv. The per-foot medians are trailing and carry no appraisal weight; the neighborhood detail is first-hand broker observation.
Compare any two submarkets
| Metric | Piedmont | Rockridge, Oakland |
|---|---|---|
| Median $/sqft (SFR) | $1,200 | $1,000 |
| Effective tax rate | 1.25% | 1.36% |
| Monthly cost, reference loan | $9,960 | $10,104 |
| Fastest to FiDi SF (Montgomery St BART) | 35 min | 25 min |
| Fastest to Oakland City Center (12th St BART) | 15 min | 12 min |
| Fastest to Sunnyvale / Mountain View (Sunnyvale Caltrain) | 65 min | 70 min |
Same reference loan on both sides; the tax line is the only variable. Commute figures are door-to-door AM-peak estimates. Sources are listed on each submarket page.
Piedmont detail
| Component | Rate of assessed value |
|---|---|
| Prop 13 general levy | 1.000% |
| County / city voter-approved bonds | 0.042% |
| School district measures | 0.210% |
| Effective rate | 1.25% |
| Mello-Roos / CFD | None recorded |
Source: Alameda County Tax Rates by TRA FY 2025-26 (Alameda County), composited in
build/assets/metrics.json.
Tax Rate Area not yet verified parcel-by-parcel — confirm the rate on the parcel’s own tax bill.
Rockridge, Oakland detail
| Component | Rate of assessed value |
|---|---|
| Prop 13 general levy | 1.000% |
| County / city voter-approved bonds | 0.152% |
| School district measures | 0.208% |
| Effective rate | 1.36% |
| Mello-Roos / CFD | None recorded |
Source: Alameda County Tax Rates by TRA FY 2025-26 (Alameda County), composited in
build/assets/metrics.json.
Tax Rate Area not yet verified parcel-by-parcel — confirm the rate on the parcel’s own tax bill.
Piedmont vs Rockridge, Oakland: questions and answers
- Which has the lower effective property tax rate, Piedmont or Rockridge, Oakland?
- Piedmont, at 1.25% of assessed value against 1.36% for fiscal year 2025-26 — a gap of 0.110%. Rates are composited from county tax rate books; each parcel bill governs.
- How much do monthly carrying costs differ between Piedmont and Rockridge, Oakland?
- $144 per month on the identical reference loan: Piedmont $9,960, Rockridge, Oakland $10,104. Piedmont is lower. Principal and interest are held constant, so the difference is the tax line. Arithmetic only.
- Which has the shorter commute to Oakland City Center, Piedmont or Rockridge, Oakland?
- Rockridge, Oakland. Piedmont is 15 min by car; Rockridge, Oakland is 12 min by BART. Door-to-door, AM peak. Source: data/commute/static.csv.
- What is the price per square foot difference between Piedmont and Rockridge, Oakland?
- $200 per square foot: Piedmont $1,200, Rockridge, Oakland $1,000. Single-family medians, trailing twelve months. A median is not a valuation of any specific property.