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Santa Monica, CA 90402 · 21st St

433 21st St

Built 1925 · 2,762 sq ft
LOT 8,885 SQ FT · 2 STRUCTURES · APN 4278-028-019Lot Structure
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The home

What's on record

Year built
1925
Living area
2,762 sqft
Lot size
8,885 sqft
Structures on lot
2 main home plus another structure: a garage, guest house or ADU
Bedrooms
4
Bathrooms
3
Home type
Single-family
Parcel (APN)
4278-028-019

Major systems

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What's coming up

Systems and what to plan for

0 worth planning for · 2 to confirm. Open "How we estimate this" on any card.
RoofOn record 2024
Expected 2044 to 2054From the 2024 permit
HVACConfirm the year
Probably replaced alreadyWhen was it done?
Water heaterConfirm the year
Probably replaced alreadyWhen was it done?

Estimates from public records and typical system lifespans. Not an inspection. Marking something as done resets that system's clock.

Nearby on this street
211 21st Ston record · 2,024 sqft223 21st Ston record · 2,713 sqft315 21st Ston record · 2,625 sqft427 21st Ston record · 6,180 sqft515 21st Ston record · 3,303 sqft521 21st Ston record · 3,785 sqft

See all 111 homes on 21st St →

Get it done

What does your home need?

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The story of this home

Your home's update timeline

  • 2025
    permit on file, unconfirmedRoof: Re-Roof With Class A Or B Roof Covering Material Weighing Less Than 6 Pounds Per Sq. Ft. Over Existing Solid Sheathing; 5 Squares For Single-Unit Residential Building. For Roof Replacement Greater Than 50% Of The Total Roof Area, Apply Cool Roof Product Labeled And Certified By Cool Roof Rating Coun
  • 2024
    permit on fileRoof: Remove Old Flat Roof, Shingle Roof And Redo Paper Under Small Portion Of Tile Roof.
  • 2024
    permit on fileGeneral remodel: Remodel Of Single-Family Residence Consisting Of 2,683 Square Feet. Rev 5-21-2025 (25Bld-1233): Exterior Door & Window Replacement/Alteration To (28) Doors And Windows. Removal Of (4) Windows And Installation Of (1) New Skylight.
  • 2023
    permit on file, unconfirmedElectrical: Upgrade Electrical Panel 200A.
  • 2020
    permit on file, unconfirmedRoof: Roofing Of Single Family Residence Consisting Of Remove And Replace Existing Roof Tile; Install 2 Plies Of 40# Udl; Reinstall Existing Tile.

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