ADU & Custom Home Design Services

Our ADU models, plan packages and service options now come together on one page.

Explore Plans & Services →   Compare consultation & pricing →

For custom homes and additional project details, explore our approach below or tell us about your project.

Our Design Delivery Approach


1. Property Potential Report — $400

A preliminary property review, two-page PDF, planning budget and rental scenarios, with a short online consultation. Submit your details and continue directly to secure Stripe payment. Delivery timing is confirmed after property review. No measured drawings or development guarantees.

Explore your property & request a report →

2. Site Concept / SD — starting from $900

Explore what could fit. Two site-placement or layout approaches for one ADU, preliminary floor-plan sketches and a concept massing study. Includes consultation and two consolidated revision rounds.

3. Developed Design — from $3,500

Refine your chosen concept. Dimensioned plans, elevations, a key section, preliminary materials and up to three AI-assisted presentation views checked against the drawings. Includes consultation and two consolidated revision rounds.

4. Construction Documents — from $6,500

Prepare for permit submittal. Architectural drawings, consultant integration and two architectural plan-check response rounds.

Each phase is priced separately. The report is an optional first step; consultation already included in a design phase is not charged again. Site complexity and project scope determine your final proposal.

Find the right starting point →

Coordination & Project Support

Design coordination and construction-phase support: $150/hour. Permit coordination: from $2,000. Scope and caps agreed in advance; included coordination is not billed twice.

A few details before you begin

  • Reviews: Custom SD and DD each include two consolidated revision rounds on the agreed scheme. Developed Design includes two review meetings.

  • Site information: The Property Potential Report is a preliminary desktop review, with no measured drawings or confirmed feasibility. Concept sketches use supplied information and are not surveyed or permit-ready. Construction Documents require consultation, verified site information and a written scope.

  • Separate costs: Engineering, surveys, energy compliance, consultant and agency fees are separately scoped. Permit approval is not guaranteed.

  • Tailored proposals: Complex sites, conversions, two-story designs and multiple units need a project-specific quote.

Prefer a premade plan? Explore our coming-soon collection. DD purchases credit the architectural CD service for the same model and project after consultation; full credit terms are on the collection page.

Illustrative 350-square-foot studio ADU with warm stucco, cedar porch, dark window frames and a shallow shed roof.

A small studio, thoughtfully visualized

Illustrative 350 SF studio concept based on sample drawings by Design Path Studio. Proposed materials and landscaping; not a completed project or a plan offered in our collection.

Illustrative 555-square-foot one-bedroom ADU with an L-shaped footprint, covered patio, warm stucco, cedar posts and dark window frames.

Space to live, inside and out

Illustrative 555 SF one-bedroom concept based on sample drawings by Design Path Studio. Proposed materials and landscaping; not a completed project or a plan offered in our collection.