Home / ADU cost by area / Windsor Square (90004)
Los Angeles / 90004 / ADU cost
Across all 191 permits the range runs $6,500 to $2,380,000. The cheapest tenth come in under $20,000, the priciest tenth over $240,000.
We get builders to the top of Google and AI results for their own area, then count every call it brings.
How many permits fall in each price band.
The areas closest to Windsor Square (90004) on price.
| Area | Median | Permits | vs Windsor Square (90004) |
|---|---|---|---|
| Sylmar | $60,000 | 475 | -3% |
| Winnetka | $60,000 | 445 | -3% |
| North Hills West | $60,000 | 430 | -3% |
| West Hills (91304) | $60,000 | 285 | -3% |
| Rancho Park | $60,000 | 253 | -3% |
| Northridge West | $60,000 | 222 | -3% |
| Sawtelle | $60,000 | 159 | -3% |
| Porter Ranch | $60,000 | 110 | -3% |
| Year | Median declared | Permits |
|---|---|---|
| 2023 | $50,000 | 15 |
| 2024 | $76,500 | 68 |
| 2025 | $60,000 | 63 |
| 2026 | $60,000 | 45 |
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