Local permit snapshot

ADUs, additions and lot splits in Sun Valley

What owners in 91352 are building, what it could rent for, and what the lots allow.

91352

Sun Valley has the highest ADU permit rate in our Valley areas: 20.1 per 1,000 single-family lots since January 2024. The median lot size is 7,419 sq ft, larger than the medians in our Van Nuys and North Hollywood ZIPs, and some lots are zoned RA.

Issued permits · Jan 2024 onward

How long do ADU permits take in Sun Valley?

ZIP 91352

New ADU permits since Jan 2024

147

Median days from submission to permit, new ADUs

167 days

ADU permits per 1,000 single-family lots

20.1

Home additions permitted since Jan 2024

302

Median declared ADU valuation: $121,000. That’s the construction value on the permit, not total project cost.

Source: City of Los Angeles Open Data – LADBS Building Permits Issued from 2020 to Present · Updated October 10, 2026

Refresh status for this source could not be confirmed.

HUD benchmark

What could a new unit rent for in Sun Valley?

HUD Small Area Fair Market Rents, FY2027. A conservative benchmark (gross rent including utilities, near the 40th percentile), not a market quote. Your property review includes a market rent check.
ZIP	Studio	1 BR	2 BR
91352 Sun Valley	$1,880	$2,100	$2,590

Source: HUD FY2027 Small Area Fair Market Rents · Updated FY2027

Data may be out of date.

Assessor parcel data

What are the lots like in Sun Valley?

91352 · Sun Valley

Single-family lots

7,317

Median lot size

7,419 sq ft

Lots 7,500 sq ft or larger

48%

Homes built before 1960

82%

Median home size

1,338 sq ft

Owner-occupied

45%

Based on the homeowners' exemption.

Lots that already have a second building

Here, the median lot is 7,419 sq ft, the median home is 1,338 sq ft and 82% of homes were built before 1960.

Source: LA County Assessor parcels (public parcel layer) · Updated October 14, 2026

Refresh status for this source could not be confirmed.

Zoning of single-family lots

How is single-family land zoned in Sun Valley?

91352 · Sun Valley

95% in single-family zones

R1 66%
RS 14%
RA 13%
RE 3%
Other 5%

Zones where SB 9 lot splits and duplexes can apply. Site exclusions apply (historic districts, very high fire hazard areas, recently rented units and others). See the HCD SB 9 fact sheet.

Percentages are rounded and may not total 100%. A few multifamily RAS parcels are grouped under Other.

Source: City of Los Angeles ZIMAS zoning layer · Updated October 14, 2026

Refresh status for this source could not be confirmed.

Census profile

Who lives in Sun Valley?

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Figures are estimates with margins of error.
Measure	91352
Households	12,638
Owner-occupied share	50%
Owners aged 65+ (share of owner households)	31%
Median household income	$78,239
Median home value	$764,800
Median gross rent	$1,830
Average household size	3.67
Median year housing was built	1961
Single-family detached share of homes	61%

Source: U.S. Census Bureau, ACS 2020-2024 5-year · Updated ACS 2020-2024 5-year

Data may be out of date.

Data by postal code

The ZIP-level detail.

ZIP	New ADU permits since Jan 2024	Median days to permit, new ADUs	Median declared construction value, new ADU	Home additions since Jan 2024	Median days to permit, additions	Permits mentioning SB 9 or a lot split	ADU permits per 1,000 single-family lots
91352	147	167 days	$121,000	302	88 days	108	20.1

Source: City of Los Angeles Open Data – LADBS Building Permits Issued from 2020 to Present · Updated October 10, 2026

Refresh status for this source could not be confirmed.

Homes that pulled a permit after a sale

91352 · Sun Valley

Insights Realty analysis · Jan 2, 2020–Dec 30, 2024; permits tracked through Sep 25, 2026

341

Common questions

Questions about Sun Valley.

How long does an ADU permit take in Sun Valley?

Since January 2024, new ADU permits in 91352 have taken a median of 167 days from submission to issue (LADBS data, updated October 10, 2026). Your timeline depends on plan completeness and plan-check type.

See the LADBS permit source

Is my Sun Valley lot big enough for an ADU or a lot split?

The median single-family lot here is 7,419 sq ft. California law allows detached ADUs up to 1,200 sq ft, subject to applicable standards. An SB 9 lot split needs both new lots to be at least 1,200 sq ft and at least 40% of the original lot. These figures do not determine parcel eligibility. Try the feasibility screen for your address.

Check your parcel HCD ADU guidance

What could a new unit rent for in Sun Valley?

HUD's FY2027 benchmark for a 1-bedroom in 91352 is $2,100 a month, including utilities. This is a conservative benchmark, not a market quote. Your free review includes a 15-minute call and initial parcel check, with a market rent check discussed on the call.

See the HUD benchmark source

A lot, reimagined

A typical project.

Every lot is different. This illustration shows one possible way to think about added housing; it is not a property study or a promise of what a specific parcel allows.

Illustration of an underused lot before added housing — Illustration — not an actual project

Illustration of the same lot with proposed added housing — Illustration — not an actual project

State guidance · local review matters

What the rules allow here.

California’s ADU and JADU framework sets statewide standards, while parcel conditions and local review still affect a project. See the California HCD ADU guidance.

Some parcels may qualify for an SB 9 duplex or urban lot split, subject to statutory requirements and site-specific exclusions. Read HCD’s SB 9 fact sheet.

Home additions are reviewed under applicable local approvals and California residential building standards; requirements depend on the property and proposed work. See HCD building standards.

Los Angeles is phasing SB 79 in by transit stop; eligibility depends on your parcel.

This information is general context, not legal, zoning, or permit advice. A property-specific review is required.

Start with the property

Get a free review for your Sun Valley property.

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A 20-minute call and an initial parcel check.

Or call (213) 537-9530