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Keiana Gunn
HOA Assistant
(805) 439-2547 ext. 14

142 144 6th Street, Seal Beach, CA 90740

$3,095,000
  • 142 144 6th Street, Seal Beach, CA 90740 Main Photo

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Active
BEDS4 BATHS4 full 1 partial SQUARE FEET3,607 MLS#NP26126800
STATUSActive PROPERTY TYPEMulti Unit - Multiple SUBDIVISIONOld Town (OLDT) SCHOOLLos Alamitos Unified

Listing Courtesy of: Pacific Sotheby's Int'l Realty
Agency Phone: 949-554-1200
Associate Name: Timothy Carr
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Listing Shown by: Farrell Smyth, Inc.
Associate Name: Keiana Gunn


Property Description

An extraordinary opportunity to own a rare double-lot duplex in one of Southern Californias most sought-after coastal communities. Opportunities like this seldom become available in the heart of coveted Old Town Seal Beachs 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 Californias 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 3.5 bathrooms. The main level features a generous family room, kitchen, dining area, living room, bedroom, a full bathroom and a half bathroom . Upstairs, youll 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.

142 144 6th Street | MLS# NP26126800

This multi-family property located at 142 144 6th Street, Seal Beach, CA 90740 is currently listed for sale with an asking price of $3,095,000. 144 6th Street is located within the Los Alamitos Unified school district. Search Seal Beach real estate on annettemullen.farrellsmyth.com today.

Property Features

Property Type: Multi Unit - Multiple
Cooling: Central Air
Garage: 4 car attached
Heating: Central
Home Style: Cottage, Mediterranean, Spanish, Patio Home
Lot Size: 0.13 Acres
Roof Type: Tile
Stories: 2.0
Year Built: 1938

Amenities

Ceiling Fan(s)
Central Vacuum
Track Lighting
Primary Suite

Feature Descriptions

Appliances: Dishwasher, Microwave
Community Features: Biking, Sidewalks, Water Sports
Days on Site: 31
Fireplace: Living Room
Flooring: Carpet, Wood
Laundry: Inside
Lot: 0-1 Unit/Acre
Parcel#: 19903230
Parking: Garage
Parking Notes: Garage
Patio/Porch: Patio
Security: Carbon Monoxide Detector(s), Smoke Detector(s)
Sewer: Public Sewer
Special View Info: City Lights, Mountain(s), Neighborhood, Panoramic, Pee
Units: 2
Water: Public

Local Schools

High School: Los Alamitos
Elementary School: McGaugh
School District: Los Alamitos Unified

Listed By / Shown By

Listed By

Agency Name: Pacific Sotheby's Int'l Realty
Agent Name: Timothy Carr
Agency Phone: 949-554-1200

Shown By

Agent Name: Keiana Gunn
Agent Phone: (805) 439-2547 ext. 14
Agency Title: Farrell Smyth, Inc.

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Estimate Your Payment

Estimated Payment

$ 7,790.84 per month $6,888.13 Principal & Interest $0.00 Property Tax (data not provided by mls) $902.71 Homeowner's Insurance

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Disclaimer: All information deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. Neither listing broker(s) or information provider(s) shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. Listing(s) information is provided for consumers personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information on this site was last updated 07/18/2026. The listing information on this page last changed on 07/18/2026. The data relating to real estate for sale on this website comes in part from the Internet Data Exchange program of Delta Media Group MLS (last updated Sat 07/18/2026 2:45:42 AM EST) or CRMLS (last updated Sat 07/18/2026 12:29:48 AM EST). Real estate listings held by brokerage firms other than Farrell Smyth, Inc. may be marked with the Internet Data Exchange logo and detailed information about those properties will include the name of the listing broker(s) when required by the MLS. All rights reserved.
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