Best Interior Designers in Mill Valley, CA — 2026 Rankings

We ranked 6 interior designers in Mill Valley based on credentials, client reviews, press recognition, and portfolio quality.

Top Interior Designers in Mill Valley

  1. #1 — Robin Heard Design Score: 37/100

    Luxury Interior Design

    Specialties: General. View full profile →

  2. #2 — Corine Maggio Design Score: 36/100

    Corine Maggio Design | Character

    Specialties: General. View full profile →

  3. #3 — Jennifer Messina Interiors Score: 34/100

    Jennifer Messina Interiors

    Specialties: General. View full profile →

  4. #4 — SoYoung Mack Design, Assoc. AIA Score: 31/100

    San Francisco Bay Area interior designer/Marin interior designer

    Specialties: General. View full profile →

  5. #5 — Justine Rob Interiors Score: 26/100

    Justine Rob Interiors, based at 321 ross dr in Mill Valley, CA, is an interior designer ready to take on your next project.

    Specialties: General. View full profile →

  6. #6 — Florence Livingston Interiors, LLC Score: 11/100

    Located at 469 B Miller Ave. in Mill Valley, Florence Livingston Interiors, LLC provides professional interior design services to the CA area.

    Specialties: General. View full profile →

How We Rank Interior Designers

Our Guide Score (0–100) combines Google rating (35%), review volume (20%), web and portfolio presence (20%), profile completeness (15%), professional credentials like ASID/NCIDQ/IIDA (5%), press recognition (3%), and years of experience (2%). Read our full methodology →

Frequently asked questions

Who is the #1 interior designer in Mill Valley?
Robin Heard Design is currently the #1 ranked interior designer in Mill Valley based on our Guide Score, which evaluates Google reviews, credentials, press recognition, and portfolio quality. See the full ranked list above.
How are interior designers ranked in Mill Valley?
Our Guide Score (0–100) combines Google rating (35%), review volume (20%), web and portfolio presence (20%), profile completeness (15%), professional credentials like ASID/NCIDQ/IIDA (5%), press recognition (3%), and years of experience (2%). There is no paid placement.
What do interior designers typically cost in Mill Valley?
Pricing varies by budget tier. Economy firms in Mill Valley often start around $5,000–$15,000 for a single room; standard-tier projects commonly run $20,000–$75,000; premium and luxury firms regularly exceed $150,000 for whole-home scopes. Individual designer pages list each firm's published budget tier and, where available, a starting-project budget.
Which design styles are common in Mill Valley?
Mill Valley's represented styles will populate as we verify more firms. Browse the full style index to filter designers by the aesthetic you prefer.