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Completed detached ADU — modern flat-roof with glass sliders

ADU Construction · Hermosa Beach

Licensed ADU contractor serving Hermosa Beach. Detached ADUs, garage conversions, and JADUs fully permitted.

ADU Construction · Hermosa Beach

ADU construction in Hermosa Beach.

Hermosa Beach is a densely built coastal community where ADU feasibility requires careful site review — lot size, setbacks, and utility access all factor in. Ethos Building Group manages ADU projects in Hermosa Beach from initial feasibility assessment through design coordination, permit submission with the City of Hermosa Beach, construction, and final city sign-off.

ADU Types We Build

  • Detached ADUs
  • Attached ADUs
  • Garage Conversion ADUs
  • Junior ADUs (JADU)
  • Backyard cottages
  • In-law units

Construction Scope

  • Foundation and slab construction
  • Framing and structural work
  • Roofing and exterior siding
  • Electrical and plumbing systems
  • HVAC installation

Interior & Finishes

  • Kitchen and bathroom installation
  • Flooring and tile
  • Cabinets and countertops
  • Lighting and fixtures
  • Interior trim and finishes

◆ Our Process

From first conversation to final walkthrough.

Every project follows the same structured path — no guesswork, no surprises.

01

Feasibility Review

We evaluate your Hermosa Beach lot, setbacks, utility connections, and ADU options before scope development.

02

Design & Engineering

Design and structural engineering coordinated for compliant, buildable plans meeting Hermosa Beach requirements.

03

City Permitting

Full permit management including City of Hermosa Beach submissions, plan checks, and all required inspections.

04

Construction

Daily logs, progress photos, and direct PM access throughout the build. Clean site, organized crew.

05

Final Delivery

We complete the punch list, walk the finished unit, and ensure the certificate of occupancy is in hand.

◆ FAQs

Hermosa Beach
Questions

Common questions from Hermosa Beach homeowners before starting a project.

Start My Project
Can I build an ADU in Hermosa Beach?+

Most single-family properties in Hermosa Beach can support at least one ADU under California's ADU laws. Hermosa Beach's relatively compact lots may require careful feasibility review — we assess your specific property during the consultation.

What ADU types are available in Hermosa Beach?+

Detached ADUs, garage conversions, attached ADUs, and JADUs are all options depending on your lot. For smaller lots, garage conversions or JADUs are often the most practical starting point.

What's a realistic ADU budget in Hermosa Beach?+

ADU costs in Hermosa Beach typically range from $220,000 to $500,000+ depending on size, type, and finish level. We provide a site-specific estimate after evaluating your property.

How long does ADU permitting take in Hermosa Beach?+

ADU permit review in Hermosa Beach typically runs 6–12 weeks. We prepare complete submittal packages to minimize back-and-forth with the city.

Can I rent out the ADU once it's finished?+

Yes, once the city issues a certificate of occupancy. We walk you through the final inspection process so you know exactly when the unit is legally rentable.

Hermosa Beach · Free Consultation

Start your Hermosa Beach project.

Tell us about your property and goals. We'll outline a clear scope and give you a realistic plan — no vague estimates.