1003 E Mariposa, Altadena Property Listing: MLS® #PV25071425

Now offered at $450,000, this 5,500 sq ft lot at 1003 E Mariposa St is set back from the street with easement access, offering privacy and a peaceful setting just minutes from the center of Altadena. The land has been fully cleared through certified Phase I and Phase II post-fire cleanup and is ready for new construction. Zoned LCR2YY, the property may allow for a single-family residence or potentially two units, such as a main home with an additional unit (buyer to verify with county). The lot formerly hosted a 2-bedroom, 1-bath home of approximately 845 sq ft with a detached garage. All utilities were previously connected and are available at the street (buyer to verify availability and reconnection requirements). The lot is rectangular and privately situated beyond the street. Buyers and builders might be able to take advantage of L.A. Countys post-fire pre-approved plan and AI-assisted permitting program, enabling faster approvals and reduced design costs. Opportunities for new development in this area are limited, and the surrounding neighborhood has seen increased interest in redevelopment. Note: Any home rendering image shown is AI-generated for illustrative purposes only and may not reflect actual plans or buildable features. All information is deemed reliable but not guaranteed. Buyer to independently verify zoning, building regulations, and all aspects of property development with the appropriate local authorities.

1003 E Mariposa, Altadena Property Listing: MLS® #PV25071425 Close
Page Summary
  • MLS® #: PV25071425
  • 1003 E Mariposa
  • Altadena, CA 91001
  • $450,000
  • 0.13 Acres
  • Office: Keller Williams Palos Verdes

Now offered at $450,000, this 5,500 sq ft lot at 1003 E Mariposa St is set back from the street with easement access, offering privacy and a peaceful setting just minutes from the center of Altadena. The land has been fully cleared through certified Phase I and Phase II post-fire cleanup and is ready for new construction. Zoned LCR2YY, the property may allow for a single-family residence or potentially two units, such as a main home with an additional unit (buyer to verify with county). The lot formerly hosted a 2-bedroom, 1-bath home of approximately 845 sq ft with a detached garage. All utilities were previously connected and are available at the street (buyer to verify availability and reconnection requirements). The lot is rectangular and privately situated beyond the street. Buyers and builders might be able to take advantage of L.A. Countys post-fire pre-approved plan and AI-assisted permitting program, enabling faster approvals and reduced design costs. Opportunities for new development in this area are limited, and the surrounding neighborhood has seen increased interest in redevelopment. Note: Any home rendering image shown is AI-generated for illustrative purposes only and may not reflect actual plans or buildable features. All information is deemed reliable but not guaranteed. Buyer to independently verify zoning, building regulations, and all aspects of property development with the appropriate local authorities.

Supplemental Remarks

Essential Information

  • MLS® #PV25071425
  • Listing Price$450,000
  • Date ListedMarch 31st, 2025
  • Days on Market100
  • Acres0.13
  • Lot Sq.Ft.5,502
  • TypeLand
  • Sub-TypeLots/Land
  • StatusActive

Community Information

  • Address1003 E Mariposa
  • AreaALTADENA (91001)
  • CityAltadena
  • CountyLos Angeles
  • StateCA
  • Zip Code91001

Amenities

  • Has PoolYes

Interior

  • FireplaceYes

Exterior

  • Lot DescriptionSidewalks
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This information is deemed reliable but not guaranteed. You should rely on this information only to decide whether or not to further investigate a particular property. BEFORE MAKING ANY OTHER DECISION, YOU SHOULD PERSONALLY INVESTIGATE THE FACTS (e.g. square footage and lot size) with the assistance of an appropriate professional. You may use this information only to identify properties you may be interested in investigating further. All uses except for personal, non-commercial use in accordance with the foregoing purpose are prohibited. Redistribution or copying of this information, any photographs or video tours is strictly prohibited. This information is derived from the Internet Data Exchange (IDX) service provided by San Diego MLS®. Displayed property listings may be held by a brokerage firm other than the broker and/or agent responsible for this display. The information and any photographs and video tours and the compilation from which they are derived is protected by copyright. Compilation © 2025 San Diego MLS®, Inc.

Listing information last updated on September 16th, 2025 at 4:56am PDT.