Garage Conversion ADU in Sherman Oaks - Design, Permits and Build Under One Contract

Fast, Reliable Garage Conversion ADU Across Sherman Oaks

Garage conversion ADUs in Sherman Oaks typically run $95,000-$175,000 all-in, drawings through final inspection, and most projects move from signed contract to permit in 8-12 weeks. Because Sherman Oaks sits entirely within the City of Los Angeles, your garage conversion is governed by LA’s ADU ordinance - no replacement parking required, 4-foot rear and side setbacks, and up to 1,200 square feet allowed - which removes the parking-space tradeoff that kills projects in other jurisdictions.

Call (747) 322-4648

We coordinate design, permit set, and construction from our Los Angeles office, and our crews work Sherman Oaks daily. We know the difference between a flat Valley-floor ranch off Hazeltine Avenue and a hillside parcel along the Mulholland corridor, and we scope accordingly before quoting. Call (747) 322-4648 to schedule your free estimate.

Why Ellery ADU Studio Burbank Is Sherman Oaks’s Preferred Garage Conversion ADU Company

We’ve designed, permitted, and built garage conversion ADUs across Sherman Oaks since 2015 - the year California’s ADU laws shifted - and our permit sets are built for LADBS plan check, not guesswork. Our 900+ ADUs include dozens in the 91403 and 91423 zip codes, from detached two-car conversions on 6,000-square-foot Valley lots to attached garage partitions in the South-of-Ventura retail corridor.

Our crews know the local stock: postwar FHA tract ranches with detached garages, mid-century slabs that may or may not have post-Northridge epoxy bolts, and the split between flat Valley floor and hillside fire-zone parcels. That knowledge shows up in our written scopes, not just our conversation.

Every project carries a written price before work starts, per Haven Standard Clause 1. No “call for a quote.” No change orders after signing. Our 365-Day Done Right Promise is backed in writing before the first wall opens.

A live person answers calls 24/7 at (747) 322-4648. If you already have a written estimate in hand, we’ll give you a Free Second Opinion.

Our Garage Conversion ADU Services in Sherman Oaks

Detached Garage Conversion

Detached garage conversions are the highest-ROI ADU type in Sherman Oaks. The neighborhood’s dense inventory of 1950s-1960s ranch homes on flat, 6,000-9,000 sq ft Valley-floor lots means thousands of detached two-car garages sit ready for conversion - no replacement parking required under LA’s ordinance, and Westside-adjacent rental demand pushes finished units to $2,500-$3,200 monthly. We open walls, assess the slab and any hidden post-Northridge framing, then engineer a permit set that accounts for what we actually find. On a recent project off Hazeltine Avenue near Magnolia, we found an unpermitted epoxy-bolted mudsill and non-standard shear panel patch behind the drywall. Our structural engineer detailed a new hold-down and continuous load path before we framed the unit, then we specified a dedicated mini-split and James Hardie siding so the space could run closed-up through Valley summer heat. Typical range in Sherman Oaks: $110,000-$175,000.

Garage JADU

A Junior ADU - a JADU - converts part of an existing attached garage while the remaining space stays garage, or it occupies a detached garage under 500 sq ft with an owner-occupancy requirement. In Sherman Oaks, JADUs work well for homeowners who need rental income but want to keep parking, or who plan to house a family member. The 4-foot setback rule still applies, and because the unit is smaller, the mechanical load drops - but we still spec a dedicated mini-split, not passive ventilation, because Sherman Oaks regularly exceeds 100°F in summer. A garage JADU in Sherman Oaks typically runs $75,000-$125,000, permit to final.

Garage Partition & Bathroom Add

Not every garage needs to become a full dwelling unit. We partition existing attached or detached garages to add a bathroom, laundry, or studio space while preserving storage function. In Sherman Oaks, this option appeals to homeowners in the South-of-Ventura area who want a home office or guest suite without triggering full ADU permitting. The catch: if you add plumbing, we still need to assess slab condition, sewer lateral capacity, and any post-Northridge structural patches before quoting. Typical range: $45,000-$85,000.

Attached Garage Conversion

Attached garage conversions in Sherman Oaks face one constraint the detached units don’t: the existing home’s envelope. We need to fire-separate the new ADU from the main house, upgrade the electrical panel if it dates to the original 1950s build, and verify that the shared wall can handle the new load. The flat Valley lots make access easy, but the age of the housing stock means we almost always find aluminum wiring, undersized panels, or unpermitted remodels behind the drywall. We document everything with photos before we quote. Typical range: $95,000-$160,000.

Carport Conversion

Carport conversions in Sherman Oaks are less common than garage work - the neighborhood’s postwar stock favored enclosed garages - but they do appear on some 1960s split-levels and hillside custom builds. A carport conversion requires a full foundation, walls, and roof where none existed, so the price approaches new construction. On hillside parcels along the Mulholland corridor, grading and drainage add complexity. Typical range: $125,000-$195,000.

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Trusted Brands We Service in Sherman Oaks

Ellery ADU Studio specifies and coordinates prefab and modular systems from Abodu, Cover, and Dvele within the same single-contract design-build model we use for site-built work. For Sherman Oaks garage conversions, we most often deploy Abodu and Cover units when a homeowner wants to replace a dilapidated detached garage with a new modular ADU rather than convert the existing structure. Dvele’s smart-home integration appeals to the tech-forward rental market near Ventura Boulevard. In every case, the brand selection is ours to coordinate - one contract, one written price, no finger-pointing between designer and installer.

Common Garage Conversion ADU Problems We See in Sherman Oaks Homes

• Valley heat kills passive ventilation designs. Sherman Oaks sits in the San Fernando Valley’s heat island and regularly exceeds 100°F in summer - substantially hotter than coastal LA. Crews who spec cross-ventilation instead of a dedicated mini-split end up with an unusable, code-failing garage ADU. We size mechanical systems for actual local conditions, not textbook defaults.
• Hidden post-Northridge framing forces mid-project redesigns. The 1994 Northridge earthquake epicentered roughly five miles away, and contractors opening walls in 1950s-1960s ranch homes routinely find non-standard shear wall additions, epoxy-bolted mudsills, or unconventional foundation patches that don’t appear on original permits. We assess these before quoting, not after demolition.
• Flat-lot drainage plans prevent neighbor disputes. Converting a detached garage on a deep 6,000-9,000 sq ft Valley lot without a grading and drainage plan pushes runoff onto the neighbor’s slab, triggering a plan-check rejection. We include drainage in every scope for flat-lot conversions.
• Hillside fire zones add ignition-resistant construction requirements. Properties on southern hillside slopes fall within LA’s Very High Fire Hazard Severity Zone, triggering Class A roofing and ember-resistant vent requirements that add cost and permit complexity. We identify fire-zone status in our first site visit and adjust the written price accordingly, per Haven Standard Clause 1.

Pricing for Garage Conversion ADU in Sherman Oaks, CA

We Also Serve Cities Near Sherman Oaks

Our Garage Conversion ADU in Sherman Oaks crews also work Van Nuys, Encino, Studio City, and Tarzana. Each city falls under different jurisdictional rules - Van Nuys shares LA’s ADU ordinance, while Encino and Tarzana have their own LADBS plan-check queues - and we scope accordingly. Wherever you are in the Valley, our Garage Conversion ADU team brings the same single-contract, written-price model.

FAQs - Garage Conversion ADU in Sherman Oaks