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142 6thSeal Beach, CA 90740

For Sale

$3,095,000

Smart Buyer Rebate $30,950

An extraordinary opportunity to own a rare double-lot duplex in one of Southern California's most sought-after coastal communities. Opportunities like this seldom become available in the heart of coveted Old Town Seal Beach's prestigious Gold Coast neighborhood. Whether you're looking to build your dream home, complete a 1031 exchange, live in one unit while generating rental income from the other, or capitalize on a unique investment or development opportunity, this property offers exceptional flexibility in one of California's most beloved beach towns. Located just one block from the sand and ocean, this exceptional double lot presents endless possibilities for homeowners, investors, and developers alike. Potential opportunities include dividing the property into two separate lots and constructing new homes with ADUs, retaining one existing structure while developing the second lot, or preserving the charming one-bedroom beach cottage and adding an ADU above the garage (all subject to City approval). The property features two original beach cottages connected by a shared courtyard. Unit 144 is a spacious 3,047-square-foot residence (per appraisal) offering 3 bedrooms and 3 bathrooms. The main level features a generous family room, kitchen, dining area, living room, and full bathroom. Upstairs, you'll find a large den, an expansive primary suite with a walk-in closet and en-suite bathroom, as well as a secondary bedroom and an additional full bathroom. A spiral staircase leads to the rooftop deck, where breathtaking 360-degree views of the coastal town, city lights, and surrounding mountains create an unforgettable setting. Unit 142 is a charming 1-bedroom, 1-bathroom beach cottage complete with a living room, kitchen, and private outdoor yard. Each residence includes its own spacious two-car garage with access from a wide alley-an uncommon and highly desirable feature in Old Town. This is a standout opportunity for owner-users, investors, and developers seeking a premier coastal property with exceptional versatility and long-term potential. Just moments from the beach, the boutique shops and restaurants of Main Street, and highly rated school district, this rare double-lot property offers the very best of Seal Beach coastal living.

Listed by Timothy Carr

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License #01017277

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Pacific Sotheby's Int'l Realty

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949-631-9999

Listed by Anne Marie Risquez-Ashley

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License #01402474

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Pacific Sotheby's Int'l Realty

Last updated June 16, 2026

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Source: bridgeMLS #CRNP26126800

Listing Facts

  • TypeSingle-family
  • NeighborhoodOld Town
  • Bedrooms4
  • Bathrooms4
  • Days on Prevu1
  • Size3,607 sqft
  • Price per sqft$858

Amenities

  • Dishwasher
  • Private Outdoor Space
  • Swimming Pool

Location

Mortgage Calculator

Listing History

06/16/2026
Listed by Pacific Sotheby's Int'l Realty
$3,095,000

Property Details for 142 6th

Exterior

Construction

  • Year Built: 1938
  • Architectural Style: Cottage, Mediterranean, Spanish

Features

  • Patio And Porch Features: Patio
  • View: City Lights, Mountain(s), Panoramic, Other

Measurements

  • Building Area Total: 3,607
  • Lot Features: Other
  • Lot Size Acres: 0.13
  • Lot Size Area: 0
  • Lot Size Square Feet: 5,876
  • Lot Size Units: Acres

Financial

Taxes

  • Parcel Number: 19903230

Interior

Features

  • Appliances: Dishwasher, Microwave
  • Fireplace Features: Living Room
  • Fireplace: Yes
  • Flooring: Carpet, Wood
  • Interior Features: Central Vacuum

Measurements

  • Living Area: 3,607
  • Living Area Units: Square Feet

Rooms

  • Bathrooms Full: 4
  • Bathrooms Total Integer: 4
  • Bedrooms Total: 4

Parking

Parking

  • Covered Spaces: 4
  • Garage Spaces: 4
  • Parking Features: Attached, Other

Schools

High School

  • High School District: Los Alamitos Unified

Utilities

Equipment

  • Cooling: Ceiling Fan(s), None
  • Laundry Features: Inside
  • Sewer: Public Sewer
  • Water Source: Public

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 4 bedrooms and 4 bathrooms in this single-family home at 142 6th.

Does this single-family home have parking?

Yes, there are 4 parking spaces available for 142 6th.

How does 142 6th compare to other single-family homes in Old Town?

This single-family home is listed 23% below the average price for single-family homes in Old Town and has been on the market for 67 less days than the typical home in this area.

What is the square footage on this single-family home?

According to the MLS, this listing is 3,607 sqft.

142 6th is a 4-bedroom, 4-bath single-family home for sale in Seal Beach CA 90740. Available on Prevu for 1 days at $3,095,000. This residence features 3,607 square feet of living space, located in Old Town. The median listing price for single-family homes in this area is $2,899,500. Property amenities include private outdoor space, dishwasher, and swimming pool. Explore more single-family home listings in Orange County.

Based on information from bridgeMLS and/or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by Prevu or the MLS. Information is provided exclusively for consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumer may be interested in purchasing.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.