Local permit snapshot

ADUs, additions and lot splits in Reseda & Tarzana

What owners in 91335 and 91356 are building, what it could rent for, and what the lots allow.

9133591356

Reseda has 12,315 single-family lots with a median size of 6,680 sq ft, and 87% of the homes on them were built before 1960. Tarzana's lots are much larger: the median is 17,457 sq ft, and most are zoned RA. Since January 2024, owners in these two ZIPs have pulled 261 new ADU permits.

Issued permits · Jan 2024 onward

How long do ADU permits take in Reseda & Tarzana?

ZIP 91335 + 91356

New ADU permits since Jan 2024

261

Median days from submission to permit, new ADUs

146 days

ADU permits per 1,000 single-family lots

14.5

Home additions permitted since Jan 2024

660

Median declared ADU valuation: $125,000. 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 Reseda & Tarzana?

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.
ZIPStudio1 BR2 BR
91335 Reseda$2,200$2,460$3,030
91356 Tarzana$2,250$2,510$3,100

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Data may be out of date.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 Reseda & Tarzana?

91335 · Reseda

Single-family lots

12,315

Median lot size

6,680 sq ft

Lots 7,500 sq ft or larger

25%

Homes built before 1960

87%

Median home size

1,423 sq ft

Owner-occupied

43%

Based on the homeowners' exemption.

Lots that already have a second building

8%

91356 · Tarzana

Single-family lots

5,710

Median lot size

17,457 sq ft

Lots 7,500 sq ft or larger

81%

Homes built before 1960

41%

Median home size

2,836 sq ft

Owner-occupied

50%

Based on the homeowners' exemption.

Lots that already have a second building

4%

By ZIP, median lot sizes run 6,680–17,457 sq ft, median homes are 1,423–2,836 sq ft and 41%–87% 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 Reseda & Tarzana?

91335 · Reseda

99% in single-family zones

  • R1 84%
  • RS 10%
  • RA 5%
  • RE <1%
  • Other 1%

91356 · Tarzana

99% in single-family zones

  • R1 26%
  • RS 1%
  • RA 64%
  • RE 8%
  • Other 2%

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 Reseda & Tarzana?

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Figures are estimates with margins of error.
Measure9133591356
Households24,19512,080
Owner-occupied share50%58%
Owners aged 65+ (share of owner households)31%36%
Median household income$80,143$107,378
Median home value$751,700$1,229,000
Median gross rent$1,874$2,009
Average household size3.022.50
Median year housing was built19631973
Single-family detached share of homes52%47%

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.

ZIPNew ADU permits since Jan 2024Median days to permit, new ADUsMedian declared construction value, new ADUHome additions since Jan 2024Median days to permit, additionsPermits mentioning SB 9 or a lot splitADU permits per 1,000 single-family lots
91335190145 days$131,50048185.5 days14615.4
9135671149 days$110,00017998 days4012.4

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

91335 · Reseda

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

672

Common questions

Questions about Reseda & Tarzana.

How long does an ADU permit take in Reseda & Tarzana?

Since January 2024, new ADU permits in 91335 and 91356 have taken a median of 146 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 Reseda & Tarzana lot big enough for an ADU or a lot split?

The median single-family lot sizes by ZIP are 6,680–17,457 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 parcelHCD ADU guidance
What could a new unit rent for in Reseda & Tarzana?

HUD's FY2027 benchmark for a 1-bedroom in 91335 and 91356 is $2,460–$2,510 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.

Before

Illustration of an underused lot before added housing

After

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 Reseda and Tarzana property.

Get a free property review

A 20-minute call and an initial parcel check.

Or call (213) 537-9530