ADU in Hollywood, FL
ADU Design & Permitting in Hollywood starts with knowing which side of Franklin Avenue you’re on. The flatlands south of Franklin are dense with 1920s-1940s bungalow courts where garage conversions pencil out fast, while the Hollywood Hills above trigger Very High Fire Hazard Severity Zone requirements that add $20,000-$40,000 in ignition-resistant materials before framing starts. Our studio handles both environments under one contract at one written price. Call (971) 497-2402 and we’ll walk the lot with you.
Why Hollywood Homes Are Different
Hollywood splits into two ADU realities along Franklin Avenue. The flatlands below are packed with Spanish Colonial Revival and Craftsman bungalows on narrow, alley-served lots, many with detached one-car garages from the 1920s and 1930s. Those garages sit on shallow floating slabs poured directly on grade, no continuous footing, and the original wiring is often knob-and-tube or early armored cable. A garage conversion here is rarely a simple interior remodel once the slab corner gets pulled up and inspected.
The Hills above Franklin are different work entirely. Properties there fall largely within the Very High Fire Hazard Severity Zone, so any new detached structure, even a converted garage, must meet ignition-resistant construction standards: Class A roofing, multi-pane windows, ember-resistant vents. Santa Ana wind events make this non-negotiable. The same garage-to-studio conversion that needs no fire-rated assemblies in the flatlands two miles south carries a five-figure compliance cost in Beachwood Canyon or the Oaks.
There is also the HPOZ layer. Blocks within Historic Preservation Overlay Zones like Melrose Hill require visual-compatibility review for new detached ADUs, a hurdle essentially absent in adjacent unincorporated county areas. Owners in those zones get a different permit path from day one.
Our Main Hollywood Services
Hollywood homeowners call us most often about two specific projects: converting those old alley-accessed garages in the flatlands, and building new detached units where the lot allows. Here is how each works in this city.
Garage Conversion ADU in Hollywood
Hollywood’s original detached garages are the archetypal conversion candidate: already permitted as accessory structures, already set back from the main house, often accessible from the alley. The catch is what sits under them. On blocks between Santa Monica Blvd and Melrose Ave, many were poured with no perimeter foundation, just a floating slab that satisfies no current habitable-space code. A contractor who quotes without exposing the slab corner is quoting blind. We inspect bearing condition before the permit set is drawn. See Garage Conversion ADU in Hollywood for the full breakdown.
New Detached ADU in Hollywood
New detached ADUs in Hollywood live or die by zoning and fire-zone review. Flatland lots may allow a rear-yard unit under the state’s zero-setback garage-conversion path, but hillside parcels routinely trigger grading permits, geotechnical review, and the full VHFHSZ materials spec. The site assessment tells you which regime you are in before a single drawing is produced. Read New Detached ADU in Hollywood for the details.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
ADU Design & Permitting in Hollywood
ADU Design & Permitting in Hollywood is where the split-city problem shows up first on paper. A flatlands bungalow with a 1930s garage needs a permit set that addresses slab bearing, wiring replacement, and possibly HPOZ compatibility. A hillside lot needs fire-zone materials, grading review, and a geotechnical stamp before the city will even schedule the first plan check. We deliver the permit set as the core product, with every drawing and specification named before construction begins. ADU Design & Permitting is one contract with one written price.
Site Assessment
Signs you need it
You own a Hollywood lot with a pre-1970 structure, a hillside parcel, or a property in a Historic Preservation Overlay Zone.
What it costs in Hollywood
Site assessment in Hollywood runs $1,200-$2,500, higher on hillside lots where geotechnical review enters the scope.
How we do it
We pull records, inspect the existing slab or foundation corners, verify zoning overlays, and issue a written site report before any design work starts.
Permit Application
Signs you need it
You have drawings in hand but no approved permit, or a previous city review came back with corrections you cannot resolve.
What it costs in Hollywood
Permit application support in Hollywood typically runs $3,000-$8,000 depending on HPOZ review and fire-zone documentation.
How we do it
We prepare the complete submittal package, track it through plan check, respond to comments, and deliver the approved permit set.
What ADU Design & Permitting Costs in Hollywood
| Item | Typical range in Hollywood |
|---|---|
| Full design & permit set (flatlands) | $15,000-$25,000 |
| Full design & permit set (hillside / VHFHSZ) | $22,000-$35,000 |
| HPOZ visual-compatibility review support | $2,500-$5,000 |
Does the HPOZ review slow down an ADU permit in Hollywood?
Yes. HPOZ overlay blocks like Melrose Hill require a visual-compatibility review that flatland non-HPOZ parcels do not. Budget an extra 6-10 weeks. Call (971) 497-2402 for a permit timeline specific to your lot.
What does VHFHSZ compliance add to a Hollywood ADU permit?
Ignition-resistant materials, Class A roofing, multi-pane windows, and ember-resistant vents typically add $20,000-$40,000 to the construction budget, not the permit fee itself. The permit set must specify them. Call (971) 497-2402 before you draw anything.
Junior ADU & Interior Conversion in Hollywood
Junior ADU & Interior Conversion in Hollywood works best in the original 1920s-1940s floorplans where a spare bedroom, former pantry, or enclosed porch sits right off the main house. These conversions skip the detached-structure fire-zone requirements that govern hillside ADUs, but they still need separate egress, a small kitchen, and proper sound separation. Junior ADU & Interior Conversion is quoted the same way as our larger projects: one written price, no designer-versus-builder blame gap.
Interior JADU
Signs you need it
You have an underused bedroom, den, or enclosed porch with its own exterior access or an easy path to add one.
What it costs in Hollywood
Interior JADUs in Hollywood typically run $75,000-$120,000 depending on the existing plumbing and electrical condition.
How we do it
We survey the existing walls and systems, design the conversion to meet JADU size and egress rules, and build the unit without touching the exterior footprint.
Room-to-ADU Conversion
Signs you need it
You have a converted garage, studio shed, or bonus room that lacks a legal kitchen, proper egress, or permitted occupancy.
What it costs in Hollywood
Room-to-ADU conversions in Hollywood run $85,000-$150,000 all-in, drawings through final inspection.
How we do it
We bring the space to code, add the kitchen and egress, upgrade the panel if needed, and deliver a full permit record.
What Junior ADU & Interior Conversion Costs in Hollywood
| Item | Typical range in Hollywood |
|---|---|
| Interior JADU conversion | $75,000-$120,000 |
| Room-to-ADU legalization | $85,000-$150,000 |
| Egress and kitchen addition | $25,000-$45,000 |
Does a JADU in Hollywood need its own address?
No. Junior ADUs share the address with the main house and do not need their own utility meters. That keeps utility work minimal. Call (971) 497-2402 to see if your floorplan qualifies.
Can an old Hollywood enclosed porch become a legal JADU?
Sometimes, but the original lath-and-plaster walls and shallow-footing porch slab often need structural reinforcement and full rewiring. We inspect before we quote. Call (971) 497-2402 for the specifics.
ADU Site Prep & Utilities in Hollywood
ADU Site Prep & Utilities in Hollywood is where the 1920s housing stock bites hardest. The floating garage slabs on the alley-grid blocks have no continuous footing, and the original electrical services are often 60-amp or less, which cannot support a second dwelling’s load. On hillside parcels, every new ADU involves grading review, and utility trenching follows the slope. ADU Site Prep & Utilities is the least glamorous line item and the one that most often decides whether a project stays on budget.
Foundation & Grading
Signs you need it
Your proposed ADU sits over a pre-1970 slab, on a slope, or on soil that has not been tested.
What it costs in Hollywood
Foundation underpinning or stem-wall work on Hollywood garage slabs runs $15,000-$25,000, and hillside grading adds $10,000-$30,000.
How we do it
We expose the slab corner, test the bearing, engineer the foundation fix, and complete the grading before framing starts.
Electrical Panel Upgrade
Signs you need it
Your panel is 100 amps or less, or the city requires a separate meter or feeder for the new ADU.
What it costs in Hollywood
Panel upgrades on Hollywood bungalows run $4,000-$8,000 depending on service size and whether the old wiring is replaced.
How we do it
We size the panel to the ADU load, run the feeder, and coordinate the utility disconnect and city inspection.
What ADU Site Prep & Utilities Costs in Hollywood
| Item | Typical range in Hollywood |
|---|---|
| Slab underpinning / stem-wall fix | $15,000-$25,000 |
| Electrical panel upgrade | $4,000-$8,000 |
| Hillside grading & geotech | $10,000-$30,000 |
Will the old Hollywood garage slab really need underpinning?
Often yes, on the floating slabs poured in the 1920s and 1930s with no perimeter footing. Underpinning runs $15,000-$25,000. We inspect the slab corner before quoting. Call (971) 497-2402.
Does a hillside ADU in Hollywood need a geotechnical report?
If your parcel is on cut-and-fill slope, yes. The city requires the geotech report before grading permits are issued. Budget $4,000-$8,000 for the report. Call (971) 497-2402 for the scope.
Brands We Service in Hollywood
We specify and coordinate prefab and modular systems from Cover, Dvele, and Boxabl on Hollywood ADU projects, with parts and panel coordination handled through the same single contract. See our brands for the full list and what each system costs to site and finish.
Pricing for ADU in Hollywood, FL
| Service | Typical range in Hollywood |
|---|---|
| Full design & permit set (flatlands) | $15,000-$25,000 |
| Full design & permit set (hillside / VHFHSZ) | $22,000-$35,000 |
| HPOZ visual-compatibility review support | $2,500-$5,000 |
| Interior JADU conversion | $75,000-$120,000 |
| Room-to-ADU legalization | $85,000-$150,000 |
| Egress and kitchen addition | $25,000-$45,000 |
| Slab underpinning / stem-wall fix | $15,000-$25,000 |
| Electrical panel upgrade | $4,000-$8,000 |
| Hillside grading & geotech | $10,000-$30,000 |
What pushes Hollywood prices up is almost always the pre-1970 condition issue: a floating garage slab, knob-and-tube wiring, or a hillside lot that triggers the VHFHSZ materials list. Every project we quote carries a written price before any work starts, under Haven Standard Clause 1, so the numbers above are what you can expect, not a teaser.
Neighborhoods We Serve in Hollywood
We work across Hollywood’s flatlands and hills, from the alley-grid blocks south of Santa Monica Blvd to the canyon roads above Franklin. The site assessment tells us which regulatory regime applies before any drawings are produced.
- Melrose Hill (HPOZ overlay)
- Hollywood Dell
- Beachwood Canyon
- The Oaks
- Little Armenia
- Whitley Heights
Response time for site assessments in Hollywood is typically 3-5 business days from the first call.
Service Area - Cities Near Hollywood
Our Hollywood crews also cover the adjacent South Florida cities of North Miami Beach, FL, Fort Lauderdale, FL, Miami Gardens, FL, and Plantation, FL. Dispatch and scheduling are coordinated from our Miami (South FL) office, with crews working locally in each city.
Serving Hollywood, FL - Our Local Coverage Area
We’re based in the Hollywood area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About ADU in Hollywood
Flatland non-HPOZ permits typically take 4-6 months from submittal to approval. HPOZ overlay review adds 6-10 weeks, and hillside VHFHSZ parcels add geotechnical and fire-zone review time on top. Call (971) 497-2402 for a timeline specific to your lot.
If your property is in an HOA, yes, and the HOA’s rules may be stricter than the city’s. We review HOA documents during the site assessment and flag any restrictions before design work begins.
The flatland alley-grid blocks south of Santa Monica Blvd, outside HPOZ overlays, are the most straightforward for garage conversions. Hillside parcels in Beachwood Canyon and the Oaks carry the highest compliance costs due to VHFHSZ requirements. Call (971) 497-2402 for a site-specific assessment.
What happens when you call
- 1A real person answersNo phone trees - talk to a local adu pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Hollywood Customers Say
"Handled the whole planning process. We went to one hearing and that was it."
- Rowena C."Garage conversion finished on the drawings and close to the schedule. They were honest that the sewer connection was the unknown, and it was."
- Arjun D."The permit set and the build were one contract with one number. Our neighbours used two firms and spent a year watching them blame each other."
- Helena V.