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Vol. I ·California ADU Desk ·Licensed · Bonded · Insured ·CSLB #1098432 ·BBB A+ Accredited ·120+ ADUs Delivered ·Starting $250K ·10–16% ROI ·Los Angeles ·Bay Area ·Vol. I ·California ADU Desk ·Licensed · Bonded · Insured ·CSLB #1098432 ·BBB A+ Accredited ·120+ ADUs Delivered ·Starting $250K ·10–16% ROI ·Los Angeles ·Bay Area ·
Plate № 03 · 2023 · Case Study

Pasadena Craftsman

Bungalow Heaven, Pasadena

Two-story Craftsman echo with steel-string sleeping loft and mature-oak siting.

Type
Detached ADU + Loft
Size
1,000 sq ft
Cost
$415K
Permit-to-CofO
13 mo
Plate № 03Pasadena Craftsman, Bungalow Heaven, Pasadena

01 — Brief

The brief.

Two-story Craftsman echo with steel-string sleeping loft and mature-oak siting.

The owner came to the studio with a 1,000 sq ft program and a hard cost ceiling. We responded with a fixed-fee feasibility document inside one business day, then locked the contract at $415K and delivered the Certificate of Occupancy in 13 mo.

Architecture, structural and Title 24 engineering, plan check management, and construction were all handled in-house under a single P&L — no coordination tax, no finger-pointing on corrections.

02 — Cost

Where the $415K went.

Allocation derived from the contract budget and reconciled against the studio's published methodology — see the full cost breakdown for category-by-category methodology.

  • Soft costs

    $50K
    Share12%

    Design, structural + Title 24 engineering, plan check and city fees.

  • Site & utilities

    $58K
    Share14%

    Excavation, foundation, sewer/water taps, sub-panel and trenching.

  • Hard construction

    $274K
    Share66%

    Framing, envelope, MEP rough-in, finishes, fixtures and appliances.

  • Contingency held

    $33K
    Share8%

    Reserved for unforeseen conditions; unspent balance returned at close.

03 — Timeline

13 mo, four phases.

The breakdown below tracks the actual permit-to-CofO calendar. Read more about the studio's standard schedule on the process page.

  1. Phase 01

    Feasibility & design

    14 wk

    Site survey, schematic design, structural concept, fixed-fee proposal.

  2. Phase 02

    Plan check & permit

    14 wk

    LADBS plan check, corrections cycle, school + utility fee clearance.

  3. Phase 03

    Construction

    23 wk

    Foundation, framing, envelope, MEP rough-in, finishes and fixtures.

  4. Phase 04

    Inspections & CofO

    6 wk

    Final inspections, punch list, owner orientation, Certificate of Occupancy.

04 — Neighborhood

Bungalow Heaven, Pasadena.

Bungalow Heaven, Pasadena sets the constraints for this build — setbacks, mature-tree protection, and the rhythm of the surrounding street frontages all shape the massing. The detached adu + loft reads as quiet from the curb and generous inside, which is the brief we hold to on every detached we deliver in the area.

See the city desk for Bungalow Heaven

05 — Field notes

What we'd repeat — and what we'd revisit.

First-hand notes from the project lead, recorded at closeout. Published as part of our standing commitment to ship lessons, not just photos.

  1. Repeat

    Pre-stage the panel upgrade

    LADWP-coordinated sub-panel work was scheduled before framing closed, which kept rough-in inspection on the original calendar. We'd protect the same buffer on every detached build at this 1,000 sq ft program.

  2. Revisit

    Front-load Title 24 review

    Energy compliance corrections added late in plan check stretched the calendar. On the next detached of comparable size, we'll lock the Title 24 envelope before the first plan-check submittal rather than during corrections.

  3. Owner brief

    Allow one design review per phase

    Owners who held a single, prepared review per phase — feasibility, plan check, construction, closeout — kept the schedule and budget inside the contract. The reverse pattern (frequent informal changes) is the most common cost driver we see.

06 — Plates

From the field.

Three details
Massing — Plate № 03.1
Envelope — Plate № 03.2
Interior — Plate № 03.3