ADU Cost Calculator

Get an instant estimate for your Escondido ADU project. Detached, attached, or garage conversion.

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2026 Prices
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ADU Cost Estimate

Quick planning numbers for Escondido ADU projects - from garage conversions to fully detached units.

Based on recent projects in North County with permits and a small contingency included.

ADU Types Explained

  • Detached ADU: Standalone unit separate from main home
  • Attached ADU: Addition connected to existing home
  • Garage Conversion: Converting existing garage to living space

California law allows ADUs up to 1,200 sq ft on most residential lots. Permits typically take 60-90 days in Escondido.

CA allows up to 1,200 sq ft

ADU Cost Ranges in Escondido (2026)

ADU costs vary significantly by type, finishes, and neighborhood. Here are typical ranges:

Garage Conversion

$120K - $180K

Attached ADU

$170K - $300K

Detached ADU

$200K - $400K+

What's Included in an ADU?

California ADU Benefits

ADUs are a smart investment for Escondido homeowners:

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Adu Cost FAQ — Escondido

How much does an ADU cost in Escondido?

ADU construction in Escondido costs $150,000-$400,000 depending on size and type. Garage conversions start around $80,000.

Can I build an ADU in Escondido?

Yes. California law allows ADUs on most residential lots. Escondido has streamlined ADU permitting. We handle all permitting.

How long does ADU construction take in Escondido?

ADU construction takes 4-8 months including permits. Garage conversions take 3-4 months.

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