ADU & Garage Conversions

ADU and garage conversions for Los Angeles

SB9, JADU, garage-to-ADU — designed for the property, the primary residence, and long-term value. Under one team accountable from concept to certificate of occupancy.

Led by Jacob, Owner-PM  ·  CSLB # 1096552

Process at a glance

One team. One timeline.

An ADU is the easiest way to add value to a Los Angeles property — and the easiest way to do it badly. Most ADUs are stamped from a catalogue. Ours are designed.

Stage 01
Discovery
2–4 weeks
Stage 02
Design
6–12 weeks
Stage 03
Permit
4–10 weeks
Stage 04
Build
4–8 months
Read the full process →
Scope of work

Every ADU type, designed not stamped.

Within the engagement, we design and build:

  • Detached ADU (new construction) — 600–1,200 sq ft, designed for the property and the primary residence
  • Garage-to-ADU conversion — Existing garage rebuilt as a code-compliant living unit, separated utilities where required
  • JADU (Junior ADU) — Up to 500 sq ft within the primary residence, internal connection to main house, separate entrance
  • Garage addition + ADU above — New garage with ADU on second floor — common on hillside and corner lots
  • SB9 lot split + duplex — Lot subdivision and duplex construction under the SB9 framework
  • ADU + primary remodel coordinated — Phased construction so primary residence and ADU finish together
  • Mechanical, electrical, plumbing — Engineered design with separate utility metering where rental compliance requires it
  • Yard + access integration — Pathways, courtyards, parking and landscape work tied to ADU placement
Signature moments

What separates a designed ADU from a catalogue ADU.

Right-sizing

The difference between an 800 and 1,200 sq ft ADU is not just cost — it is livability, rentability, and resale. We design for actual use, not maximum allowable square footage. Smaller, better-organized often wins.

Aesthetic continuity

An ADU that looks bolted onto the property reduces the value of both. Same materials, complementary volume language, considered detailing — the ADU reads as part of a single property, not an outbuilding.

Permit fluency

LA ADU rules are layered: state ADU/JADU/SB9 framework, city ADU ordinance, neighborhood overlays, sometimes coastal or historic. We have worked through them. You do not spend weekends decoding LADBS.

Engagement model

Three phases. Three fee structures. No surprises.

We don't bid against general contractors at the back end. The fee is structured up front, the budget is tracked weekly, and the model rewards cost discipline — not change orders.

Phase 01

Discovery (fixed)

Discovery includes ADU-specific feasibility — zoning, setback envelope, separate-meter requirements, parking impact, neighborhood overlays. Fixed-fee, refundable against the design contract.

Phase 02

Design (transparent)

Architectural design plus the full ADU permit drawing set. Hourly with a not-to-exceed cap by phase. You see plans before they go to engineering, selections before they go to permit.

Phase 03

Construction (cost-plus)

Build is cost-plus with a negotiated fee. You see every subcontractor bid, every line item, weekly budget tracking. Same superintendent through certificate of occupancy.

Questions

What clients ask about ADUs in LA.

How long does an ADU take from start to finish?

Discovery and design typically run 2–4 months combined. Permit cycles in LA add 1–3 months depending on neighborhood and overlay. Construction runs 4–8 months for a detached ADU, 3–5 months for a garage conversion. Plan on 9–15 months total from first conversation to certificate of occupancy.

What does an ADU cost in Los Angeles?

Most detached ADUs we build land between $400 and $700 per square foot. Garage conversions run lower because the structure exists. JADUs are typically the lowest cost per square foot but smaller in scope. Discovery produces a high–low range tied to your property and ADU type.

Do I need parking for an ADU?

Often no, under current state ADU law. Properties within a half-mile of transit, in historic districts, or already short on parking are typically exempt. We confirm parking obligation as part of Discovery feasibility — before any design work begins.

Can I rent the ADU?

Yes — long-term and short-term rentals of ADUs are legal in Los Angeles, subject to local short-term rental rules in some neighborhoods. We design with rentability in mind: separate entrance, separate utility meter where required, sound separation from primary residence.

SB9 vs ADU vs JADU — what is the difference?

ADU = a separate dwelling unit on your lot, up to roughly 1,200 sq ft. JADU = a smaller unit (up to 500 sq ft) carved out of the primary residence with internal connection to the main house. SB9 = a state law allowing lot splits and two-unit construction on lots zoned for single-family. Discovery determines which path produces the best outcome for your property and goals.

Start with a Discovery brief.

A conversation, a site walk, and a feasibility brief — fixed-fee, refundable against design.

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