FAQ
What typically affects the budget for a single family home project in Los Angeles?
A custom home budget in Los Angeles is driven by the Encino lot — soils, hillside versus flat — then the size of one house, finishes, consultants, and permits. Not a second kitchen. 121 Design Build, as a single family home architect in Los Angeles, scopes those drivers before anyone bids.
Direct answer
One house. Site, size, finishes, and permits — not two kitchens.
Single family home architect Los Angeles cost work starts on the lot. Soils and a hillside Encino site pull in grading, retaining, and more consultants than a flat lot. House size is next. Finishes and the consultant stack follow. Permits sit in that stack. We do not publish a dollar figure.
121 Design Build treats a custom home as one dwelling, one kitchen, one occupancy. A second kitchen is an SB9 two-unit budget conversation, not this page.
We do not invent fees or dollar amounts. City of LA / local AHJ decides. This page is not legal advice.
What moves a custom home budget
Site, size, hillside Encino lots, finishes, consultants, and permits.
Site and soils
Soils reports, survey, and drainage set the floor of a custom home budget in Los Angeles. A hillside Encino lot is a different job than a flat lot — more retaining, more consultants, more permit desks.
Size of one house
Square footage, stories, and how much of the Encino lot you build on move labor and materials. This is one house. Two kitchens and a second service belong on the SB9 two-unit budget page.
Finishes, consultants, permits
Stone, millwork, glazing, and structural / civil / energy consultants sit in the stack with LADBS and, if needed, Planning. We do not invent those fees. Call (424) 600-2100.
Encino hillside vs flat
A hillside Encino lot is not a flat-lot custom home budget.
Encino has both hillside and flatter streets. 121 Design Build does not invent Encino-specific legal conclusions or fee tables. City of LA / local AHJ decides how grading and Planning land on your lot.
Our office at 17801 Ventura Blvd, 2nd floor, Encino, CA 91316 can walk a single-family budget from soils through finishes. Email info@121designbuild.com.
How we work
How 121 Design Build scopes a custom home budget in Los Angeles.
01
1. Read the Encino lot
Survey, soils, hillside versus flat. That list decides grading, retaining, and which consultants join the custom home budget.
02
2. Size one house
A single family home architect in Los Angeles sizes one dwelling. Not two kitchens.
03
3. Finishes and consultants
Millwork, stone, glazing, and the civil / structural / energy set. Allowances here move the budget more than most owners expect.
04
4. Permit stack
LADBS, grading if hillside, Planning if overlays, DWP, BOE. We coordinate. We do not invent fees. City of LA / local AHJ decides.
Honest split scope
When a custom house budget is the right conversation — and when SB9 is not.
We map
One dwelling, one kitchen
If you want one custom home, the budget follows soils, size, hillside Encino vs flat, finishes, consultants, and permits. Compare two kitchens on our SB9 two-unit budget page.
We do not
Permits still sit in the stack
A custom home still needs LADBS and, on many Encino lots, grading and Planning. See our single-family home permits page. We do not give legal advice. City of LA / local AHJ decides.
Talk with 121 Design Build about your Encino custom home budget.
Call (424) 600-2100 or email info@121designbuild.com. 121 Design Build, 17801 Ventura Blvd, 2nd floor, Encino, CA 91316. We scope one house — lot, size, finishes, consultants, permits — without inventing dollar amounts.