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$3,095,000
42 Days On Site

142 6th Street
Seal Beach, CA 90740

For Sale|Townhouse|Active
4
Beds
5
Total Baths
4
Full Baths
1
Partial Bath
3,607
SqFt
$858
/SqFt
1938
Built
Subdivision:
Old Town (OLDT)
County:
Orange
Listed by Timothy Carr of Pacific Sotheby's Int'l Realty (949) 631-9999
Call Now: (408) 868-2620
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(408) 868-2620
142 6th Street142 6th Street142 6th Street142 6th Street
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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 alleyan 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.

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Listing Snapshot
Price 
$3,095,000
Days On Site 
42 Days
Bedrooms 
4
Inside Area (SqFt) 
3,607 sqft
Total Baths 
5
Full Baths 
4
Partial Baths 
1
Lot Size 
0.1349 Acres
Year Built 
1938
MLS® Number 
NP26126800
Status 
Active
Property Tax 
N/A
HOA/Condo/Coop Fees 
N/A
Sq Ft Source 
N/A
Friends & Family
Recent Activity
a month agoListing updated with changes from the MLS®
a month agoListing first seen on site
General Features
Garage 
Yes
Garage Spaces 
4
Number Of Stories 
2
Parking 
Garage
Parking Spaces 
4
Property Sub Type 
Townhouse
Security 
Carbon Monoxide Detector(s)
Sewer 
Public Sewer
SqFt Total 
3607
Style 
CottageMediterranean/Spanish
Water Source 
Public
Interior Features
Appliances 
DishwasherMicrowave
Cooling 
Central Air
Fireplace Features 
Living Room
Flooring 
CarpetWood
Heating 
Forced Air
Interior 
Central Vacuum
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Exterior Features
Patio And Porch 
Patio
View 
City LightsNeighborhoodPanoramicMountain(s)
Waterview 
City LightsNeighborhoodPanoramicMountain(s)
Community Features
Community Features 
Sidewalks
Financing Terms Available 
CashConventionalFHAVA Loan
Listed by Timothy Carr of Pacific Sotheby's Int'l Realty (949) 631-9999



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. Copyright © 2026 San Diego MLS®.

Last checked 2026

Neighborhood & Commute
Source: Walkscore
Disclosure: Community information and market data powered by Constellation Data Labs. Information is deemed reliable but not guaranteed.
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