Custom home planning resource · Los Angeles County and the South Bay
Planning a custom home in Rolling Hills
Rolling Hills is a gated city with two separate authorities: the City handles site plan review, the Rolling Hills Community Association oversees architecture and the community's one-story ranch-style character, and the City's FAQ lists the LA County Building and Safety office in Lomita for building plan review.
KB Remodeling takes new-home inquiries from owners planning here. Share the lot and the project; KB reviews scope, licensing and location for each inquiry before suggesting a next step.
Planning sequence
01
Separate City and association approvals
The City FAQ describes the City and the Community Association as distinct entities with different roles; plan for both.
Official resource: Rolling Hills · General Information FAQCity-wide guidance · Confirm the current content directly with the agency
02
Learn the zoning vocabulary
The development FAQ explains the RAS-1 and RAS-2 zones, net lot area, building pads and when grading needs a permit. Coverage is calculated on net, not gross, lot area.
Official resource: Rolling Hills · Development and Planning FAQCity-wide guidance · Passage checked
03
Talk to the City before design
The Planning page invites owners planning a new residence to contact the City first about permits, documents and the review process.
Official resource: Rolling Hills · Planning and Community ServicesCity-wide guidance · Confirm the current content directly with the agency
Each step links to the official page it comes from. Requirements differ by parcel; confirm with the agency.
Who reviews a new home here
Rolling Hills is an incorporated city in Los Angeles County.
City of Rolling Hills — Planning and Community Services (site plan review, building permits). The Rolling Hills Community Association, a separate private body, holds architectural authority.
Local planning journey
Which planning question to resolve first here, and why it shapes the brief. Each answer comes from the cited City page or stays a question for staff.
Question 1
Does the project need site plan review?
The City's development FAQ (read October 13, 2026) lists triggers including any new building or structure (except a barn or stable without grading) and grading of 3 feet or more over 2,000 square feet.
source: Rolling Hills · Development and Planning FAQQuestion 2
What does the Rolling Hills Community Association require?
The association oversees architecture separately from the City's review; one approval does not replace the other.
source: Rolling Hills · General Information FAQQuestion 3
Where does building plan check happen?
The FAQ lists the Los Angeles County Building and Safety office in Lomita and names an alternative plan review firm; ask the City which applies to your permit.
source: Rolling Hills · Development and Planning FAQ
Finding the current official checklist
Read the City's development and planning FAQ, then contact the Planning and Community Services department before design; request the association's architectural requirements separately.
Owner evidence to gather first
- Grading cut, fill and disturbed area estimates
- Locations of any stable, corral or equestrian features
- Association architectural requirements in writing
Three separate roles in Rolling Hills
| Body | Role described |
|---|---|
| City of Rolling Hills | Site plan review and discretionary review by the Planning Commission or City Council |
| Rolling Hills Community Association | Architectural review of the community's character |
| LA County Building and Safety (Lomita office) | Building plan review, permits and inspection, as the FAQ lists |
Local issues and the budget lines they touch
| Local issue | Budget line it affects |
|---|---|
| Grading above the site plan review threshold | Grading design and balancing soil on site |
| Three review bodies | Design time to answer each set of comments |
No dollar amounts or local premiums are implied.
Hypothetical: an owner plans a new ranch house plus a barn. The house triggers site plan review as a new building; the barn on its own might not if built without grading, so the team asks the City whether to file them together.
What shapes the budget here
- Grading balanced on site, plus geotechnical work
- Site plan review for structures, walls and stables
- Gate access, staging and road coordination
These items affect cost; none is a price. See how to build a realistic budget: Custom home budget guide
Parcel questions to answer first
- Is the lot zoned RAS-1 or RAS-2, and what is its net lot area?
- Where are the existing or proposed building pads?
- What does the Community Association require, separately from the City?
Gather before a first conversation
- Address or APN and recent site photos
- Survey, title report and prior permits if available
- Architect drawings, or a written list of rooms and priorities
- Target timing and how you plan to finance construction
Related guides: Buying land to build · Lot utility due diligence · Choosing a custom-home builder · 2025 Energy Code for new homes · Hillside lot due diligence
Official sources
Each source shows what it covers and whether its passage was checked in our review.
- Rolling Hills · General Information FAQ
City vs Community Association roles.
City-wide guidance · Confirm the current content directly with the agency - Rolling Hills · Development and Planning FAQ
RAS zones, net lot area, building pads, grading.
City-wide guidance · Passage checked - Rolling Hills · Planning and Community Services
Applications and tips before building a new residence.
City-wide guidance · Confirm the current content directly with the agency
1 of 3 official source passages checked (latest October 13, 2026); 2 could not be opened and should be confirmed with the agency.
Page content last updated:
Nearby places worth comparing
- Custom home planning in Rolling Hills Estates — Similar name, different city and review
- Custom home planning in Palos Verdes Estates — Peninsula neighbor with its own city and association rules