
ADU & Garage Conversions · San Fernando Valley · CSLB #1055131
ADU & Garage Conversions in the San Fernando Valley
Detached ADUs, garage conversions and JADUs — designed in 3D, permitted in-house, built by one crew.
Why Green Tech
The Valley's trusted ADU builder
In-house LADBS permitting
We file and manage every permit so you never deal with the building department.
3D design before demo
Approve every finish and layout in photoreal 3D before a single wall moves.
Foundation to final walkthrough
One crew handles everything — no subcontractor hand-offs, no surprises.
1-year warranty
We stand behind our work with a full 1-year warranty and 6- and 12-month check-ins.
What's Included
Everything under one roof

Detached ADUs & New Construction
- Site assessment & feasibility
- Architectural drawings & 3D renderings
- LADBS permit filing
- Foundation & framing
- Plumbing & electrical
- Interior finishes & landscaping

Garage Conversions & JADUs
- Structural assessment
- Insulation & drywall
- Separate entrance & windows
- Kitchen/bath rough-in
- Electrical panel upgrade if needed
- Final inspection & certificate of occupancy
Our Process
From concept to certificate of occupancy
01
Design
We assess your site, draw architectural plans and produce photoreal 3D renderings so you approve every detail before we break ground.
02
Permits
Our in-house team files all LADBS permit applications, responds to corrections and manages the approval process start to finish.
03
Build
One accountable crew handles foundation, framing, MEP, finishes and final inspection — then hands you the keys.
Investment
ADU & Garage Conversion Pricing
Typically $90,000–$250,000 depending on size, finish level and site conditions.
Project Gallery
Recent ADU projects

Detached ADU — Van Nuys

New Construction ADU — Sherman Oaks

Garage Conversion JADU — Encino
Client Reviews
What our clients say
"Green Tech built our backyard ADU from scratch. Permits, design, construction — all handled. We now rent it for $2,400/month."
— Rick Eiden
"Our garage conversion came out better than we imagined. The 3D design process made every decision easy."
— David Yaparyan
Ready to Start?
Let's build your ADU
Call us or request a free in-home estimate. We serve the entire San Fernando Valley — Van Nuys, Encino, Sherman Oaks, Studio City and beyond.
5605 Woodman Ave Suite 204, Van Nuys CA 91401 · CSLB #1055131
