Quick Answer: Adding a breakfast nook to a San Jose kitchen costs $3,000-$8,000 for a built-in banquette (L-shaped bench with cushions and storage underneath) in an existing corner of the kitchen or dining area, or $15,000-$35,000 for a small bump-out addition (4-6 feet into the backyard) that creates a dedicated breakfast nook with windows on three sides. The most popular breakfast nook designs for San Jose homes are the corner banquette (uses dead corner space efficiently, seats 4-6 people, adds built-in storage) and the bump-out with bay windows (adds natural light and creates a sense of separation from the kitchen working area). A built-in banquette does not require a building permit; a bump-out addition does require a San José Building Division permit.
Breakfast Nook Addition Options — San Jose 2025
Helpful Resources:
| Option | Cost Range | Space Required | Permit? |
|---|---|---|---|
| Built-in corner banquette (no structural change) | $3,000 – $8,000 | Existing corner, ~6×6 ft | No |
| Built-in banquette with storage and table | $5,000 – $12,000 | ~8×8 ft existing space | No |
| Bump-out addition (4 ft x 10 ft nook) | $15,000 – $28,000 | 40 sq ft new footprint | Yes |
| Bump-out with bay windows on 3 sides | $22,000 – $40,000 | 50-80 sq ft new footprint | Yes |
| Bay window addition only (no new floor) | $5,000 – $12,000 | Window opening in existing wall | Yes (structural) |
Quartz Construction adds breakfast nooks and bump-out additions to San Jose kitchens. We design built-in banquettes that maximize storage and style. CSLB #1003436 | Call (650) 749-7436.
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