Residential construction & general engineering · Los Angeles
ADUs, additions, and home renovations. Grading, paving, drainage, and civil construction. Tell us what you're planning—we'll help work through the next steps.
Just an idea or plans in hand. Either is a good place to start.
CSLB #1124515 — check the official license record (opens in a new tab)
Two ways we can help
01 / Residential construction
A separate place for family. Another bedroom. A kitchen that works better. Start with what you need from your home.
A separate home for family, guests, or rental use. We can help with new ADUs and attached options.
Turn an underused garage into living space, starting with its structure, layout, and utility connections.
Add a bedroom, expand your living area, or make space for a growing household.
02 / General engineering · Class A
Planning site improvements or a civil construction package? Share the location, plans, and scope. We’ll review the work, project requirements, and the team needed to carry it out.
Discuss a site or civil projectPrepare a property for the work ahead.
Land leveling, excavation, grading, earthmoving, and trenching.
Plan the surfaces, base, and drainage together.
Paving, surfacing, and concrete work connected with fixed civil works, including roads and site improvements.
Coordinate utility routes with the rest of the site.
Water supply, sewers, sewage systems, and pipelines for liquid or gaseous substances.
Start with where the water comes from and where it goes.
Irrigation, drainage, flood-control works, levees, and river-control and reclamation works.
The Class A classification also covers the fixed works below. Each opportunity needs a separate review of its scope, specialist resources, project qualifications, and procurement requirements before we offer a proposal.
Highways, streets, roads, railroads, bridges, overpasses, underpasses, tunnels, airports, and airways.
Ask about project fit : Transportation infrastructureInland waterways, harbors, docks, wharves, shipyards, ports, dams, water-power and hydroelectric projects.
Ask about project fit : Water & marine worksPowerhouses, power plants, utility installations, refineries, chemical plants, and waste-reduction plants.
Ask about project fit : Energy & industrial worksParks, playgrounds, and other recreational fixed works.
Ask about project fit : Parks & recreationMines and metallurgical plants requiring specialized engineering knowledge and skill.
Ask about project fit : Mining & metallurgical worksConstruction follows the agreed scope and required approvals. Licensed design professionals provide engineering or design services where needed.
Read CSLB’s Class A scope (opens in a new tab)Residential design ideas
Use these ideas to show us the layouts and materials you like. We’ll discuss what makes sense for your property.
AI-generated design concepts. These images are inspiration, not photographs of completed Derian projects.
Design concept
A compact backyard home with a sheltered place to sit outside.
Discuss an idea like this : Courtyard ADU
Design concept
A bright living space that opens toward the garden.
Discuss an idea like this : Garage studio
Design concept
More room for everyday life, connected to the outdoors.
Discuss an idea like this : Garden addition
Design concept
Warm cabinetry, practical storage, and a simple material palette.
Discuss an idea like this : Oak kitchenWorking with Derian
A building project comes with a lot of questions. What can fit on the property? What's included in the price? What happens next?
We start with those conversations, then work through the details with you.
Tell us about your projectReview what's included, what isn't, and which materials still need to be selected before agreeing on the job.
Coordinate the design team, permit requirements, trades, and inspections around the agreed plans.
If something needs to change, discuss the work, cost, and effect on the schedule before moving ahead.
How it works
Tell us where the property is and what you'd like to do. We'll discuss whether a site visit makes sense.
Review drawings, design needs, materials, budget, and permits so the proposed work is clear.
Coordinate the trades, deliveries, and inspections. Talk through questions and document any changes.
Review remaining items, final inspections, and project documents before wrapping up.
Project checklist
Pick the project and where you are with it. We'll show you a few things to have ready before we talk.
You can use this checklist without filling out the contact form.
Read about ADU constructionADU construction / Exploring options
You do not need finished plans to have a useful first conversation. A few details about the property and your goals will help.
Where we work
We review residential and civil construction projects in Los Angeles, Pasadena, the foothills, and nearby cities. Send the project location and scope so we can confirm coverage.
See our service areaBefore you get in touch
You don't need to have everything figured out before calling.
We review residential construction and General A civil project scopes. Home projects include ADUs, additions, conversions, renovations, and custom homes. Civil inquiries can cover grading, paving, drainage, utilities, and broader fixed works. We confirm the scope, project requirements, and fit before proposing work.
No. You can start with the property location, a description of the space you need, and a few photos. If plans are already underway or approved, let us know so the conversation starts at the right stage.
We talk about the property, what you want to build, your timing, and your budget. If the project is a fit, we can discuss a site visit. Design work, engineering, permit fees, and construction are priced separately.
Yes. We can coordinate the design team, permit submissions, trades, and inspections as part of the agreed work. The city or county reviews and approves the plans.
We review the property, drawings, size, materials, and work involved. The written proposal should spell out what is included, any allowances for materials, and what is priced separately.
Our service area includes Los Angeles, Pasadena, Altadena, Glendale, Burbank, Arcadia, La Cañada Flintridge, San Marino, Sierra Madre, South Pasadena, Monrovia, and nearby communities. Send the project city so we can confirm coverage.
Get in touch
Tell us about your home, site improvements, or civil construction scope. We’ll discuss project fit, the information needed, and whether an on-site consultation is the right next step.
626-429-1441 d.derian@derianconstruction.comNo finished plans needed to start. No obligation to proceed.
Free initial consultation