Construction Services
Built for Long-Term Value
Green Design and Build provides roofing, patio covers, foundation work, flooring, and pavers for homes across Los Angeles County, the San Fernando Valley, Ventura County, Orange County, western Riverside County, and western San Bernardino County.
Our Services
Quality Construction and remodeling
ADU Construction
Add valuable living space with custom ADUs designed for comfort, functionality, and investment.
Bathroom Remodeling
Upgrade your bathroom with modern designs, quality materials, and expert craftsmanship.
Electrical
Safe and professional electrical installations, upgrades, and lighting solutions tailored to your home’s needs.
Flooring
Enhance your home’s beauty and durability with professionally installed flooring solutions.
Foundation & Structural
Restore stability and peace of mind with professional foundation repair and reinforcement services.
Full Home Renovation
Reimagine your living space with comprehensive home renovation services that enhance comfort, style, and value.
Garage Conversion
Convert underutilized garage space into a functional and valuable living area.
Kitchen Remodeling
Create a beautiful, functional kitchen designed for everyday living and lasting value.
New Home Construction
Custom homes, teardown rebuilds, hillside lots and SB 9 second homes, designed, permitted and built under one contract.
Outdoor Living
Transform your backyard into the perfect space for relaxing, entertaining, and making memories.
Painting
Refresh and protect your property with high-quality interior and exterior painting services.
Patio Cover
Expand your outdoor living space with custom patio covers built for comfort and style.
Pavers
Create stunning outdoor spaces with durable paver driveways, walkways, and patios.
Plumbing
Reliable plumbing solutions designed to improve functionality, efficiency, and long-term performance throughout your property.
Remodeling Services
Transform your home with expert remodeling solutions tailored to your lifestyle, needs, and budget.
Roofing
Protect your home with reliable roofing systems built for performance and long-term durability.
Room Additions
Expand your living space with seamless room additions designed to match your home.
Windows & Doors
Improve energy efficiency, security, and curb appeal with expertly installed windows and doors.
Our Process
Green Design and Build focuses on organized project delivery, dependable workmanship, and results that support long-term property value.
Every project is managed with a practical, step-by-step approach that supports quality workmanship, schedule clarity, and responsive communication from planning through completion.
1
Consultation
We review your goals, property conditions, scope, and priorities to recommend the right construction solution.
2
Planning
Our team develops a clear project plan covering materials, timeline, site considerations, and execution strategy.
3
Construction
Work is completed with attention to craftsmanship, safety, and coordination across each phase of the build.
4
Final Review
We complete a final walkthrough to confirm quality, address details, and ensure the finished work meets expectations.
What Green Design and Build does
Green Design and Build is a licensed California design-build general contractor (CSLB #1110975), based in Van Nuys and working across Los Angeles County, the San Fernando Valley, Orange County, Ventura County, western Riverside County and western San Bernardino County. Design, engineering, permitting and construction are handled by one company under one contract, which is the practical difference between a design-build contractor and hiring an architect and a builder separately.
We take on residential work from a single bathroom through to a whole-house rebuild: additions and ADUs, kitchens and baths, roofing, foundations, electrical and plumbing, flooring and paint, and everything outside the house: concrete, pavers, patio covers, retaining walls, turf, fencing, outdoor kitchens and landscaping. Below is every service we offer, what a job of that type typically costs across Southern California, and where to read the detail.
What we build, and what it costs in Los Angeles
These are the ranges we quote from. Each links to a full cost breakdown showing what moves a project to the top or the bottom of its range.
| Service | Typical Los Angeles cost | Detail |
|---|---|---|
| ADU construction | Garage conversion ADU $100,000–$200,000; JADU $60,000–$150,000 | ADU cost guide |
| Garage conversion | $100,000–$200,000 | Garage conversion cost |
| Room additions | $300–$500 per sq ft ground floor; $400–$650 second storey | Room addition cost |
| Kitchen remodeling | $25,000–$100,000+ | Kitchen remodel cost |
| Bathroom remodeling | $8,000–$80,000+ | Bathroom remodel cost |
| Whole-home renovation | $100–$500 per sq ft of house | Whole-home renovation cost |
| New home construction | $300–$600 per sq ft | Cost to build a house in LA |
| Roofing | $12,000–$65,000 for a 1,500–2,000 sq ft roof | Roof replacement cost |
| Foundation & structural | $500 for a single crack to $30,000+ for major work | Foundation repair cost |
| Pavers & hardscape | $15–$25+ per sq ft installed | Backyard remodel cost |
| Concrete & driveways | $8–$18 per sq ft; stamped $12–$26 | Concrete patio cost, Driveway replacement cost, Stamped concrete cost |
| Retaining walls | $30–$95 per sq ft of wall face, plus engineering and permits over 4 ft | Retaining wall cost |
| Artificial turf | $12–$18 per sq ft installed; pet systems $15–$22 | Artificial turf cost |
| Fencing & gates | $35–$95 per linear foot for wood or vinyl; block walls $130–$240 | Vinyl fence cost |
| Outdoor kitchens, decks & pergolas | Kitchens $6,000–$85,000+ by tier; decks $35–$95 per sq ft | Outdoor kitchen cost, Pergola cost |
| Landscaping & irrigation | $6–$30 per sq ft planted; drip and lighting per item | Backyard remodel cost |
| Patio covers | $25–$75 per sq ft installed | Patio cover cost |
| Outdoor living & backyards | $13,000–$70,000 for a full yard | Backyard remodel cost |
| Flooring | Quoted by area and material | Flooring guide |
| Painting | Quoted by area and preparation required | Hiring a painter |
| Electrical | Panel upgrades, rewires, outdoor circuits | — |
| Plumbing | Repipes, relocations, gas lines | — |
| Windows & doors | Quoted per opening | — |
| Fire rebuild | Like-for-like rebuilds after the Palisades and Eaton fires | Fire rebuild guide |
These are typical Los Angeles budgeting estimates, not a price list or a quote. Your project can come in lower or higher depending on the house, the scope and the finishes; the only real number is a written proposal after a site visit.
Load-bearing wall removal, which comes up in most open-plan kitchen projects, runs $10,000 to $25,000 on a single-storey house — see removing a load-bearing wall. Our full pricing approach is on the pricing page, and financing options are set out separately.
These are typical Los Angeles budgeting estimates, not a price list or a quote. Your project can come in lower or higher depending on the house, the scope and the finishes; the only real number is a written proposal after a site visit.
How a project runs with us
One contract covers design through final inspection, so there is no gap between the person who drew it and the people who build it.
- Site walk and feasibility. We look at the property, what the zoning and the existing structure allow, and give you a realistic range before anyone pays for drawings.
- Design and engineering. Plans, structural calculations and the Title 24 energy work, produced in-house.
- Permitting. We submit, answer plan-check corrections and pull the permits. This is where most owner-managed projects stall.
- Construction. One superintendent, our own crews for the core trades, and a schedule you can see.
- Inspections and closeout. We carry the job through final sign-off, and the work is covered by our warranty.
The longer version, including what happens at each stage and who you deal with, is on the design-build process page.
Where we work
We build across five counties. County pages: Los Angeles County, Orange County, Ventura County, western Riverside County and western San Bernardino County. Cities we work in most often include Van Nuys, Sherman Oaks, Encino, Studio City, Woodland Hills, Northridge, Burbank, Glendale, Pasadena, Santa Clarita, Thousand Oaks, Irvine, Anaheim, Corona, Ontario and Rancho Cucamonga. The complete list is on areas we serve.
Licence, insurance and warranty
We hold California contractor licence CSLB #1110975, which you can verify directly on the CSLB licence check. We are licensed, bonded and insured, and carry workers’ compensation for our crews. Our workmanship warranty is written into the contract. Homeowner reviews are on our reviews page, and if you are comparing contractors, our guide to hiring a general contractor without getting scammed explains exactly what to check before you sign anything — including the licence status of whoever else you are talking to.
Recent projects
A sample of completed work across the services above, photographed by our own crews.
- Kitchen Remodel in Calabasas — cherry raised-panel cabinets and dark granite replaced with stained shaker, lit glass uppers and an island in the same footprint.
- Complete Home Remodel in Encino — a full interior remodel: white kitchen with a waterfall island, dark stone bathrooms and a feature fireplace wall.
- Irvine Bathroom Remodel — a corner platform tub and builder-grade vanity replaced with a freestanding tub and walk-in shower.
- Garage-to-ADU Conversion in Los Angeles — an unused detached two-car garage converted into a roughly 500 sq ft ADU with its own kitchen, bathroom and entrance.
- Anaheim Paver Driveway and Side Yard — bare dirt taken through excavation, compacted base and finished pavers with drains set flush.
- Roof Replacement in Newport Beach — a full tear-off and replacement.
More completed work, with before, during and after photographs, is in the project gallery.