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Report ready APN 5845024014

843 MORADA PL ALTADENA CA 91001

Los Angeles area · ALTADENA CA, CA 91001-2424

Lot size

8,422

sq ft · 0.19 ac

Zoning

—

Residential

Existing home

1,249

sq ft · 2 BR / 2 BA

Year built

1939

14.8% lot coverage

Buildability verdict

Likely buildable

Your parcel clears the major regulatory checks. 1 of 13 overlays passed cleanly.

Based on 13 regulatory overlays and your zoning designation.

13 LA City Overlays

Every overlay your parcel intersects

We run the same checks the LA Planning department would. Flags don't mean stop — they mean an extra review step.

1 pass 12 n/a

01 Zoning (single-family base)

Zoning unknown

02 Hillside Ordinance Area

Outside City of LA overlay data

03 Coastal Zone

Outside City of LA overlay data

04 Very High Fire Hazard Severity Zone

Outside City of LA overlay data

05 Methane Hazard Site

Outside City of LA overlay data

06 Flood Hazard Zone

Outside City of LA overlay data

07 Historic Preservation Overlay (HPOZ)

Outside City of LA overlay data

08 Historic-Cultural Monument

Outside City of LA overlay data

09 Rent Stabilization Ordinance

Outside City of LA overlay data

10 Alquist-Priolo Fault Zone

Outside City of LA overlay data

11 Earthquake-Induced Liquefaction

Outside City of LA overlay data

12 Earthquake-Induced Landslide

Outside City of LA overlay data

13 Specific Plan Area

Outside City of LA overlay data

ADU Size & Setbacks

What you can put on this lot

The maximum ADU size, height, and setbacks allowed under Altadena and California state ADU law.

Max detached ADU

1,200 sq ft

Up to 16' tall · per Altadena + CA state ADU law

Interior JADU

500 sq ft

Carved from your existing home

Required setbacks

Side

4 ft

each side

Rear

4 ft

minimum

Front

Match home

existing setback

LA County Department of Regional Planning rules apply — state minimums.

Max height

16 ft · 25 ft attached

Parking required

No

Metro bus and proximity to Pasadena transit network.

Permit fees

$6k–$12k

Permits issued by LA County Building & Safety (LACBS), not a city building dept.

Source · Altadena planning code

Jurisdiction Rules

What Altadena requires

City-specific ADU conditions on top of California state law. The full rules page has every setback, size, and fee detail.

Local conditions

Special ADU rules in Altadena

Full Altadena ADU rules

Altadena is an unincorporated community governed by Los Angeles County — permits go through LA County Building & Safety (LACBS) and the Department of Regional Planning (DRP), not a city building department.
VHFHSZ applies to the mountain-facing portions of Altadena; fire-resistant construction required.
Altadena has no city HOA requirements, but individual CC&Rs may exist in some tracts.
Post-Eaton Fire (Jan 2025): many parcels are in the fire rebuild zone — LA County has expedited permit review pathways available.

Source: Altadena planning code · Last updated 2026-05-27. ADU rules change frequently — verify with the local building department.

All-in Cost Estimate

Six ways to ADU this property

Cost includes design, permits, materials, labor, soft costs, and site work. Based on LADU's project history in similar lots — not a quote.

JADU — inside existing home

JADU — inside existing home

Studio / 1 BA · up to 500 sf

All-in cost estimate

$93k–$114k

construction $87k–$102k · fees $6k–$12k

11–15 mo total build 6–10 mo

Carved from existing footprint. Fastest path, lowest permit risk.

Refine in calculator

Garage Conversion

Garage Conversion

1 BR / 1 BA · up to 420 sf

All-in cost estimate

$84k–$103k

construction $78k–$91k · fees $6k–$12k

11–15 mo total build 6–10 mo

Existing structure — no new foundation. Streamlined permitting.

Refine in calculator

Best fit

Detached 1 BR

Detached 1 BR

1 BR / 1 BA · up to 750 sf

All-in cost estimate

$231k–$275k

construction $225k–$263k · fees $6k–$12k

11–15 mo total build 6–10 mo

New construction, factory-built shell. Best yield per dollar.

Refine in calculator

Detached 2 BR

Detached 2 BR

2 BR / 2 BA · up to 1100 sf

All-in cost estimate

$336k–$397k

construction $330k–$385k · fees $6k–$12k

11–15 mo total build 6–10 mo

Maxes allowable detached size. Highest resale lift.

Refine in calculator

Prefab 1 BR

Prefab 1 BR

1 BR / 1 BA · up to 600 sf

All-in cost estimate

$186k–$192k

unit $180k · fees $6k–$12k

9–11 mo total build 4–6 mo

Factory-built unit. Fastest install once the site is ready.

Refine in calculator

Prefab 2 BR

Prefab 2 BR

2 BR / 2 BA · up to 1200 sf

All-in cost estimate

$376k–$382k

unit $370k · fees $6k–$12k

9–11 mo total build 4–6 mo

Full-size factory-built unit. Speed of prefab at max size.

Refine in calculator

Property Value

What this property is worth today

An estimate derived from public assessor records. Use it as a starting point for financing, not as an appraisal.

Estimated market value

$980,000 – $1,280,000

Midpoint $1,130,000

$980,000 $1,280,000

From the LA County Assessor

Assessed land: $707,402
Assessed improvements: $425,299
Total assessed value: $1,132,701
Prop-13 base year: 2006

Prop-13-corrected: the assessed value can rise at most 2%/yr, so a long-held home is assessed far below market. We re-grow the base-year value at LA County's actual home-price appreciation (1× here). Indicative only — not an appraisal. Source: LA County Assessor public records.

LADU Timeline

From today to move-in ready

LADU handles every step — design, permits, build, inspection. You make 5–7 decisions total.

From kickoff to keys

Traditional build vs. prefab

Prefab ≈ 3 mo faster

Traditional build Site-built, stick framing

11–15 mo

Construction 6–10 mo · approvals add ~5 mo

Prefab ADU Factory-built, installed on site

9–11 mo

Construction 4–6 mo · approvals add ~5 mo

Site visit Design Permit submittal City review Construction Final inspection

Nearby ADUs

ADUs near this address

LADU's own completed projects. LADU pins show the neighborhood only — never a client's street address.

This property LADU projects (8)

LADU project pins show the neighborhood only — client addresses are kept private. Permit pins are public records from LA County Building & Safety.

One team, one process, zero headache

Ready to talk to an ADU expert?

We'll come measure 843 MORADA PL ALTADENA CA 91001, walk you through your options, and give you a firm bid.

Schedule a free site visit (213) 855-3334

Report generated June 20, 2026 · Sources: City of LA ZIMAS, LA County Assessor, CA HCD, LA City Building & Safety