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Open-plan living room and kitchen with polished concrete floors
Design · Permit · Build

ADUs & Additions in Redondo Beach

Detached ADUs, garage conversions and additions, from plans to move-in.

Built for Redondo Beach Homes

Redondo splits into two very different construction problems. South of the pier, the Hollywood Riviera and the Avenues slope hard toward the water. For parcels inside the Coastal Zone, the City issues its own coastal permits under a certified Local Coastal Program.

North Redondo is flatter, denser and largely built out with townhomes and small-lot single family. We scope a backyard here based on which side of that line the property sits.

Compact by regional standards: narrow, deep lots on the older south-side streets, sloped view parcels in the Riviera, and small flat lots with detached-garage rear yards in the north end.

We are a design-build team, which means the people who draw your project are the people who build it. Design, engineering, permits and construction run through one project manager and our own crews, so nothing gets lost in a handoff between a salesperson and a subcontractor. We are licensed, bonded and insured, CSLB license #1119054.

Permits in Redondo Beach: The Building and Safety Division of the Community Development Department issues residential permits, and all applications, plans and documents are submitted electronically through the City's online permit portal. Redondo Beach has a certified Local Coastal Program, so Coastal Development Permits for property inside the Coastal Zone are processed by the City under Article 10, Chapter 5, Title 10 of the municipal code rather than by the Coastal Commission, with some decisions appealable to the Commission.

A waste management plan is now required with building permits. How long review takes depends on scope and whether coastal review applies.

Permit details checked September 2026 against City of Redondo Beach, Redondo Beach Municipal Code and California Coastal Commission. Rules change, so we confirm them again for your parcel.

What We Build

  • City-issued Coastal Development Permits
  • Sloped-lot pool and retaining engineering
  • Alley-access construction sequencing
  • Detached ADUs, ground-up
  • Garage conversions to living space
  • Junior ADUs within the main house
  • Room additions and bump-outs
  • Second-story additions
  • Full kitchens and bathrooms in the ADU
  • Separate utility metering where required
  • Private entries, patios and landscaping
  • Plans, engineering and city submittals
  • Title 24 energy compliance

Local Conditions

What to Know in Redondo Beach

These local conditions change the scope, the schedule and the budget.

01

Riviera and Avenues parcels drop steeply from the street, so pools frequently become elevated or partially raised structures with substantial retaining.

02

Sandy near-shore soils west of Catalina Avenue call for engineered shoring around deep excavation and protection of neighboring foundations.

03

Alley access serves many older blocks, which limits truck size and makes gunite delivery and spoil handling a scheduling problem rather than a routine step.

04

Marine air and steady onshore wind shorten the life of untreated metals, unsealed stone and standard outdoor appliances.

Areas we serve in Redondo Beach:Hollywood RivieraRiviera VillageThe AvenuesNorth Redondo

Investment

What It Costs in Redondo Beach

Real Southern California price ranges, not teaser numbers.

Detached ADU

$150,000 to $400,000+

What moves it: square footage, finish level, utility runs, and site access; garage conversions typically run well below a ground-up detached build

Garage conversion ADU

$80,000 to $180,000

What moves it: whether the existing slab and framing meet current code, how far utilities have to run, and the finish level of the kitchen and bathroom

Plans, drawings and permit management

$4,500 to $25,000+

What moves it: project type and size, whether structural engineering, Title 24 or a soils report is required, and how many jurisdictions or review bodies are involved

Your lot, access and finishes set the price. We walk the site, then show you where every dollar goes.

Get a line-item price for your Redondo Beach property

The Process

How We Work in Redondo Beach

01

Feasibility

We check lot size, setbacks, utilities and access to confirm what your property will actually support.

02

Design & 3D

Layout, elevations and finishes, modeled in 3D so you approve the unit before submittal.

03

Plans & Permits

We prepare the full drawing set, handle engineering and Title 24, and manage the city submittal and corrections. In Redondo Beach that submittal goes to City of Redondo Beach Community Development Department, Building and Safety Division.

04

Foundation & Framing

Site prep, foundation, framing and dry-in by our own crews.

05

Systems & Finishes

Electrical, plumbing, HVAC, insulation, then kitchen, bath and interior finishes.

06

Final Inspection

We pass final inspection, walk the unit with you and hand over the keys.

Questions

What Redondo Beach Homeowners Ask

Who issues the permits for this work in Redondo Beach?

City of Redondo Beach Community Development Department, Building and Safety Division. The Building and Safety Division of the Community Development Department issues residential permits, and all applications, plans and documents are submitted electronically through the City's online permit portal.

Redondo Beach has a certified Local Coastal Program, so Coastal Development Permits for property inside the Coastal Zone are processed by the City under Article 10, Chapter 5, Title 10 of the municipal code rather than by the Coastal Commission, with some decisions appealable to the Commission.

A waste management plan is now required with building permits. How long review takes depends on scope and whether coastal review applies. We prepare the drawings, make the submittal and handle plan-check corrections ourselves, so you are not the one chasing plan check.

What makes building in Redondo Beach different?

Compact by regional standards: narrow, deep lots on the older south-side streets, sloped view parcels in the Riviera, and small flat lots with detached-garage rear yards in the north end. One local condition that shapes the work: Riviera and Avenues parcels drop steeply from the street, so pools frequently become elevated or partially raised structures with substantial retaining.

Which parts of Redondo Beach do you work in?

All of it, including Hollywood Riviera, Riviera Village, The Avenues and North Redondo. Our crews run every job out of our Cahuenga Pass base in Los Angeles, with our own people on site.

What does an ADU or addition cost in Redondo Beach?

Detached ADU: generally $150,000 to $400,000+ across Southern California. What moves it is square footage, finish level, utility runs, and site access; garage conversions typically run well below a ground-up detached build. We give line-item pricing after seeing the site rather than quoting a number over the phone.

How long does an ADU take start to finish?

Plan a realistic year. Design and engineering typically take one to three months, city plan check and corrections add several more, and construction usually runs four to eight months depending on size and site access.

Is a garage conversion cheaper than a detached ADU?

Usually yes, and often substantially, because the foundation, walls and roof already exist. The trade-offs are that you lose the garage, and older slabs and framing sometimes need upgrading to meet current code.

Can I rent the ADU out?

California ADU law is designed to allow long-term rental, and an ADU is one of the few ways to add rentable square footage to a single-family lot. Short-term rental rules vary by city, so confirm your local ordinance before counting on that income.

Do you handle the permits?

Yes. Plans, engineering, Title 24 and the city submittal are all handled in-house, including responding to plan-check corrections. That is a service we sell on its own, so it is not something we hand off.

Planning an ADU in Redondo Beach?

Sit down with your project manager and get an accurate estimate. We call you back within one business day.

Licensed, bonded & insured · CSLB license #1119054