What is a JADU and how is it different from an ADU?

A JADU (Junior ADU) is a unit up to 500 sqft built inside the footprint of an existing single-family house — usually a converted bedroom or garage. It requires owner-occupancy and is faster/cheaper to permit than a full ADU.

Can I have both a JADU and an ADU on my LA lot?

Yes — state law allows one JADU plus one ADU on most single-family lots in LA. The combination is often the best path for multi-generational living plus rental income.

Is my Highland Park / Angelino Heights house in an HPOZ?

Most of historic Highland Park (along Figueroa) and all of Angelino Heights are designated HPOZs. We pull the parcel against the City of LA HPOZ map during the first site walk.

Do I need a hillside permit in Silver Lake?

Many Silver Lake blocks fall inside the Hillside Construction Regulation overlay. If yours does, we add a haul-route permit and stricter truck-size limits to the schedule.

Eastside / NELA JADU Builder.

A Junior ADU carves up to 500 sqft out of an existing single-family house, typically a converted bedroom or attached garage bay. It is the lightest-touch path to a permitted rental unit in LA — and the owner can keep occupying the main house. We handle the plan set, the LADBS permit, and the build.

NELA permits are predictable as long as you're outside an HPOZ. Inside one (Highland Park, Angelino Heights, parts of Eagle Rock), the Office of Historic Resources reviews materials, windows, and street-facing changes before LADBS will issue. Hillside parcels add a separate haul-route permit and a tighter grading review.

Eastside / NELA cost band — 2026

$95K – $180K all-in

Existing plumbing wall proximity and whether the entrance already exists drive the band.

Eastside / NELA permit clock

8–12 weeks ministerial

Plan on 6–10 weeks for design + LADBS permit, then 8–12 weeks on-site.

Scope — start to keys.

Feasibility check — interior wall layout, plumbing access, exterior entry
Kitchenette, efficiency bath, and bedroom buildout
Separate exterior entrance, fire-rated demising wall if required
Owner-occupancy deed restriction and LADBS sign-off
Sub-panel, plumbing tie-in, mini-split HVAC

What changes about the permit here.

Office of Historic Resources (OHR) review on HPOZ parcels — adds 4–8 weeks before LADBS submittal.
Hillside Construction Regulation (HCR) permits required in many Silver Lake / Echo Park / Mt Washington blocks.
Pre-1978 housing presumed to have lead paint; abatement budgeted before demo on any wall removal.
BHO (Baseline Hillside Ordinance) caps height and grading on R1H lots.

What moves the Eastside / NELA number.

Hillside parcels add $40–120k in geotech, retaining, and crane access vs flat lots.
HPOZ design review pushes window/door budgets 20–35% higher (true-divided lite, wood sash).
Lead and asbestos abatement on pre-1978 homes commonly $8–25k.
Tight street access in Silver Lake / Echo Park drives concrete pump and small-equipment days.

In short.

What is a JADU and how is it different from an ADU?: A JADU (Junior ADU) is a unit up to 500 sqft built inside the footprint of an existing single-family house — usually a converted bedroom or garage. It requires owner-occupancy and is faster/cheaper to permit than a full ADU.
Can I have both a JADU and an ADU on my LA lot?: Yes — state law allows one JADU plus one ADU on most single-family lots in LA. The combination is often the best path for multi-generational living plus rental income.
How much does a JADU cost in Los Angeles?: Most LA JADUs land between $95K and $180K all-in. Existing plumbing proximity and whether the entrance already exists are the biggest swing factors.
Is my Highland Park / Angelino Heights house in an HPOZ?: Most of historic Highland Park (along Figueroa) and all of Angelino Heights are designated HPOZs. We pull the parcel against the City of LA HPOZ map during the first site walk.
Do I need a hillside permit in Silver Lake?: Many Silver Lake blocks fall inside the Hillside Construction Regulation overlay. If yours does, we add a haul-route permit and stricter truck-size limits to the schedule.

More we build in Eastside / NELA.

JADU Builder in nearby LA areas.

Got a Eastside / NELA project in mind?

Send us the address and we’ll pull Eastside / NELA zoning, setbacks, and jadu builder feasibility before you spend on drawings.

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