“Lior is very personable and has many decades of construction experience. We appreciated his sincere evaluation of our project.”
Ann AnterasianHouzz · April 2019
ADU construction · Sherman Oaks, CA
Sherman Oaks ADUs,
Flats and Hillside Alike
Compact flats north of Ventura, estate lots south of it, and hillside parcels climbing to Mulholland — three different ADU projects, one experienced builder. CSLB #972213.
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CSLB LicensedLicense #972213
5.0 on Houzz17 verified reviews
Family-OwnedLicensed since 2010
24-Hour ResponseFree in-home estimate
Sherman Oaks PermitsLADBS · Valley branch · in-house
Why Hillstar
What Sherman Oaks Gets From Hillstar
Reading which of Sherman Oaks' three lot types you own is the first professional judgment — everything downstream depends on it.
Three Lot Types, One Team
Flats infill, south-of-Ventura estates, and Mulholland-bound hillside — we've designed and built for each.
Valley-Branch Fluency
Sherman Oaks permits run through LADBS in Van Nuys, where our plan sets and inspections move weekly.
Hillside & Fire Engineering
Baseline Hillside Ordinance provisions and mapped fire-zone construction standards handled at design, where they belong.
Estate-Lot Detached Builds
The deeper southern parcels take full detached units — pool intact — at state setback minimums.
Panel-First Utility Planning
Older 100-amp services need headroom before an ADU's load lands; the math happens at design and shows in the quote.
Tree Ordinance Handled
Oaks and sycamores on hillside lots trigger protected-tree review; arborist coordination is a design-stage task on our projects.
Our process
The Sherman Oaks ADU Path
Four stages, calibrated to your lot type.
1
Classify the Lot
Flats, estate, or hillside — plus trees, fire-zone status, and utility capacity, confirmed on-site.
2
Design & LADBS Filing
Plans drawn to the lot's reality and filed at the Valley branch; corrections handled by us.
3
Build & Inspect
Our crew from foundation to finishes, every inspection met through certificate of occupancy.
4
Keys & Warranty
Final walkthrough, punch list, and the written workmanship warranty.
Local conditions
Permits, Lots & What's Specific to Sherman Oaks
Sherman Oaks is City of LA, but the lot mix here splits sharply between flat in-fill blocks and the steep hillside tracts toward Mulholland. The right ADU strategy looks different on each.
Permit jurisdiction
LADBS Van Nuys office issues all Sherman Oaks ADU permits. The Standard ADU Plan Program (the City of LA pre-approved plan set) is open to qualifying Sherman Oaks lots and can compress plan check on flat-lot detached designs. LADWP handles utility coordination; older 100-amp panels often need an upgrade before an ADU electrical load lands.
Lot & zoning patterns
Sherman Oaks flats — between Ventura and Magnolia, and the blocks east of Sepulveda — tend to compact R1 lots where a thoughtful detached ADU or a garage conversion is the practical play. The deeper south-of-Ventura lots near Royal Estates handle full detached new-builds. Hillside parcels climbing toward Mulholland sit under the LA Baseline Hillside Ordinance with stricter grading and height review.
Design overlays you'll see here
Many hillside Sherman Oaks parcels fall inside California Fire Hazard Severity Zones — when they do, Chapter 7A WUI compliance is mandatory (ignition-resistant materials, ember-resistant vents, Class A roof). Some hillside lots also trigger LA's protected-tree ordinance (oaks, sycamores) and, where applicable, Mulholland Specific Plan view-corridor rules. None of this is a deal-breaker; all of it has to be planned at design, not at framing.
Design examples
ADU Design Examples
Examples of ADU styles and layouts.
Reviews
Homeowners on Working With Hillstar
Verified Houzz reviews from Hillstar Construction clients.
“Lior is a fantastic general contractor. He has tremendous work ethic and strong attention to detail.”
J. GlaserHouzz · June 2017
“Hillstar's crew was courteous, prompt, and worked hard to make every detail exactly what we wanted.”
Hillstar ClientHouzz · Verified
5.0 · 17 verified reviews on Houzz
FAQ
Sherman Oaks ADU — FAQ
Lot classification, hillside rules, unit selection, utilities, and rental basics.
What changes if our lot is hillside-classified?
The Baseline Hillside Ordinance adds grading, height, and slope-stability provisions, and parcels in mapped fire-severity zones build to ignition-resistant standards — Class A roof, ember-resistant vents, protected assemblies. Hillside ADUs are routinely buildable; they're simply engineered projects rather than catalog projects.
Which unit type suits the flats between Ventura and Magnolia?
Compact R1 rectangles usually favor a garage conversion inside the existing footprint or a modest detached unit where the rear yard allows four-foot setbacks. The estate blocks south of Ventura open up full detached designs. Lot measurement, not preference, makes this call.
Do protected trees really affect ADU plans here?
On southern and hillside lots, often. LA protects oaks, sycamores, walnuts, and bay trees on private property; building inside a root-protection zone brings arborist review and sometimes an envelope shift. Identified at design, it's a manageable constraint — we've routed plenty of units around a good tree.
Is our electrical service ready for an ADU?
Sherman Oaks homes from the flats' era commonly run 100 to 125 amps, which rarely leaves room for a second dwelling. The design phase runs the load calculation, LADWP coordinates the service arrangement, and the panel upgrade — where needed — is a visible line in the written quote.
Can we rent it out?
Detached and attached units, yes — no owner-occupancy requirement under state law. JADUs keep the owner-occupancy condition. Sherman Oaks rents support the investment case well; we design units that serve family use and rental interchangeably.
Also serving Sherman Oaks
Nearby ADU neighborhoods
Which Sherman Oaks Lot Do You Own?
Free feasibility visit — classification, measurements, and a written recommendation for your parcel.