Solar Panel Installation Cost in Mill Valley, CA
Based on 1,006 solar panel installation building permits filed in Mill Valley between 2015 and 2026, the typical declared project value is $22,645, with most landing between $14,100 and $33,640. These are real records from Mill Valley's public building-permit data, declared job values, not contractor estimates or AI guesses.
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Solar Panel Installation values over time in Mill Valley
Median declared value moved from $21,965 in 2020 to $28,842 in 2025, up 31% over that span. Each year below is computed from the filings that actually cleared in Mill Valley.
Recent solar panel installation permits in Mill Valley
Actual filings from Mill Valley's public permit records. Declared job values, not final paid prices.
| Filed | Declared value | Work described |
|---|---|---|
| 2026-01-20 | $10,000 | 1 ESS INSTALL TO EXISITNG PV SYSTEM |
| 2026-01-12 | $6,450 | Remove & Reinstall Existing Solar System |
| 2026-01-08 | $95,658 | Residential roof mount PV solar system; 30 modules; 12.3kW; with (2) Tesla Powerwall 3 ESS |
| 2026-01-04 | $45,200 | 8.600 KW ROOFTOP SOLAR WITH (20) MODULES (1) TESLA POWERWALL 3 & (1) EXPANSION UNIT BATTER |
| 2025-12-31 | $35,963 | Installation of 6.6 PV and 15 kWh ESS |
| 2025-12-30 | $60,769 | Residential roof mount PV solar system; 22 modules; 9.02kW; with (1) Tesla Powerwall 3 ESS |
| 2025-12-30 | $67,478 | Roof-mount PV 9.02kW DC and ESS 30.0kWh AC. |
| 2025-12-17 | $48,235 | Residential roof mounted solar PV and energy storage system installation. Equipment inclu |
| 2025-12-12 | $20,856 | RESIDENTIAL PV SOLAR, FLUSH ROOF MOUNT, GRID TIED. |
| 2025-12-05 | $38,447 | Residential roof mount PV solar system; 13 modules; 5.33kW; with (1) Tesla Powerwall 3 ESS |
| 2025-12-02 | $20,000 | Solar roof mount 7.82kW, 17 modules, 17 microinveters. 1 Enphase battery w/ 10kWh capacity |
| 2025-11-14 | $10,000 | 1 ESS INSTALL TO EXISTING PV SYSTEM |
| 2025-11-14 | $23,000 | PV INSTALL 8.5KW, 21 MODULES, 1 ESS |
| 2025-11-14 | $41,884 | Residential roof mount PV solar system; 13 modules; 5.265kw; with (1) ESS. |
| 2025-11-07 | $10,790 | Photovoltaic - Residential Flush Roof Mount, Grid Tied |
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Add your price →How to read these numbers
A permit's declared value is the job cost the owner or contractor stated when they pulled the permit. It tracks the real cost of the work but can run a bit under what was actually paid, since it often leaves out some labor and finish costs. Treat the range as a grounded starting point. What solar panel installation actually costs in Mill Valley comes down to home size, materials, and scope.
Where this comes from
Every figure is pulled from Mill Valley's public building-permit records and classified by the work described. Nothing is estimated or AI-generated. How the data works. The moment a Mill Valley homeowner adds a real receipt, this page upgrades to show what neighbors actually paid next to these permit values.
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