519 Mount Holyoke Ave, Pacific Palisades: New accessory dwelling unit (ADU) After the 2025 Fire
New accessory dwelling unit (ADU) at 519 Mount Holyoke Ave, Pacific Palisades, after the January 2025 Palisades Fire: the City of Los Angeles issued the building permit on September 15, 2026 with a stated construction value of under $250K, and the rebuild is at excavation and site work (Builtie's estimate). Builtie tracks every Palisades rebuild permit, the stage of each build and the builder behind it.
The same four steps, whether the buyer is a builder, a designer, an owner or a company you want to acquire.
The rebuild
| Address | 519 Mount Holyoke Ave, Pacific Palisades, Los Angeles, CA |
| City permit address | 519 N Mount Holyoke Ave |
| Rebuild | New accessory dwelling unit (ADU) |
| What the plans show | 2 storeys, accessory dwelling unit, fire sprinklers throughout |
| Rebuild track | Like-for-like rebuild (the City's expedited track under Emergency Executive Order 1) |
| Building permit issued | September 15, 2026 |
| Status | At excavation and site work (Builtie's estimate) |
| Stated construction value | under $250K |
| Builder named on the permits | Mcquade Development LLC |
| Permits at this address since the fire | 1 |
The facts above are read from the City of Los Angeles building permits filed for 519 Mount Holyoke Ave since the January 2025 Palisades Fire. Owners and permit numbers are left out.
Permit timeline
| Issued | Permit | Status |
|---|---|---|
| September 15, 2026 | New accessory dwelling unit (ADU) | Issued |
1 permit since September 15, 2026. A typical rebuild runs demolition and debris clearance, grading and retaining walls, the new building, then the pool and site work.
Where it stands
519 Mount Holyoke Ave is at excavation and site work (Builtie's estimate).
At that stage these trades are inside their award window, the stretch of the build when the builder decides who gets the work:
| Trade | Award window |
|---|---|
| Excavation and Site Work | Before construction starts |
| Construction Site Security | Before the start to 15% |
| Concrete and Foundation | Before the start to 5% |
| Structural Steel | 0% to 15% |
| Elevators | 0% to 20% |
| Framing | 0% to 20% |
| Painting | 5% to 35% |
| Masonry | 10% to 30% |
| Waterproofing | 10% to 35% |
Other rebuilds on Mount Holyoke Ave
- 501 Mount Holyoke Ave: New single-family home, framing
- 511 Mount Holyoke Ave: New single-family home, framing
- 516 Mount Holyoke Ave: New single-family home, interior trades
- 521-523 Mount Holyoke Ave: New single-family home with an ADU, foundation
- 535 Mount Holyoke Ave: New single-family home, permitted
- 554 Mount Holyoke Ave: New single-family home, interior trades
- 558 Mount Holyoke Ave: New single-family home, foundation
- 561 Mount Holyoke Ave: New building: revision to an earlier permit, likely complete
All of them: fire rebuilds on Mount Holyoke Ave. Every street: the Pacific Palisades fire rebuild tracker.
For contractors
Builtie tracks every Palisades rebuild permit as it is issued, estimates where each build stands, and names the builder behind it, so a trade can reach them while its part of the job is still open. The decision makers and their verified contacts are in Builtie.
Plans
Builtie's Starter plan is $79 per seat per month (CAD) for 20 projects; Growth is $99 for 50 projects and adds the LinkedIn and email outreach you run yourself. Opening a project spends one credit, and the decision makers, emails, phones and AI call script inside it are included. Your monthly credits reset at each renewal, and extra credit packs are valid for 30 days. The free trial runs 7 days with 10 projects. Custom, where Builtie's team runs the outreach for you, starts from CAD $1,500 a month on top of a Growth seat.
Frequently asked questions
What is being built at 519 Mount Holyoke Ave, Pacific Palisades?
New accessory dwelling unit (ADU) (2 storeys, accessory dwelling unit, fire sprinklers throughout), permitted September 15, 2026 after the January 2025 Palisades Fire.
What is the status of the rebuild at 519 Mount Holyoke Ave?
It is at excavation and site work (Builtie's estimate), read October 20, 2026.
Is 519 Mount Holyoke Ave a like-for-like rebuild?
Yes. The City marked its permit eligible for the expedited like-for-like track.
Who is building 519 Mount Holyoke Ave?
Mcquade Development LLC is named on the permits. The decision makers and contacts are in Builtie.
What does Builtie cost?
Starter is $79 per seat per month (CAD) for 20 projects; Growth is $99 for 50 projects and adds LinkedIn and email outreach. There is a 7-day free trial with 10 projects.