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18679 Diddy Circle, 
Fountain Valley, CA 92708

$2,599,000


6

Beds


5

Baths


3,917

Sq Ft


Single Family


Virtual Tour

Active

Listed by

Lily Campbell

, 

Sarah Frost

First Team Real Estate

714-964-3311

Last updated:

August 3, 2026, 10:51 AM

MLS#

OC26161392

Source:

CRMLS

About This Home

18679 Diddy Circle

Rarely does a Fountain Valley home offer nearly 4,000 square feet of combined living space, a 4-car garage, an attached ADU, and an expanded driveway accommodating 6-7 vehicles, all on a 10,048-square-foot cul-de-sac lot. Built in 1998, this executive home is one of the newer custom residences in Fountain Valley's prestigious Hampton Place Tract, known for its tree-lined streets, award-winning schools, pride of ownership, and prime location near Harper Park and approximately three miles from the beach, this property offers a 3,025 square foot main residence and an attached 892 square foot ADU completed in December 2024. Exceptional curb appeal features a lush front lawn, raised stone planters, a beveled glass entry door, and manicured landscaping. Fresh interior paint, hardwood flooring and tile downstairs, new carpet upstairs, recessed lighting, and abundant natural light enhance the home. The floor plan offers four bedrooms plus a bonus room, formal living room or fifth bedroom/home office, formal dining room, family room with fireplace, remodeled powder room, separate laundry room, and ceiling fans throughout. The kitchen features granite countertops, extensive cabinetry, glass display shelving, two oversized pantry cabinets, a center island, built-in wine refrigerator, five-burner cooktop, utility sink, and abundant storage. Upstairs, the primary suite offers vaulted ceilings, a walk-in closet, fireplace, dual vanities, soaking tub, and separate shower. Three additional bedrooms, the bonus room, and an upgraded secondary bathroom with dual vanities and travertine flooring complete the second level. The backyard features a built-in BBQ, spa with waterfall, fire pit, fruit trees, artificial turf, patio, and two large storage sheds. The attached ADU offers 2 bedrooms, 2 bathrooms, indoor laundry, its own air conditioning system, and flexible living space for multigenerational living, guests, or rental income. The expanded four-car tandem garage offers approximately 200 additional square feet with Racedeck flooring, custom glass display cabinetry, built-in seating with concealed storage, extensive cabinetry, and a craft/workbench. Additional upgrades include a newer HVAC system, upgraded electrical panel, Prism and security exterior lighting beneath the eaves, and a residential fire suppression system. A rare opportunity to own one of Hampton Place's finest homes with newer construction, a private ADU, and exceptional parking.

Home Facts

Single Family

5 Baths

6 Bedrooms

Built in 1998

Subdivision & Development:

Hampton Place (HAMP)

Price Summary

2,599,000

$663 per Sq. Ft.

MLS #:

OC26161392

Last Updated:

August 3, 2026, 10:51 AM

Added:

1 month(s) ago


Rooms & Interior

Bedrooms

Total Bedrooms:

6

Bathrooms

Total Bathrooms:

5

Full Bathrooms:

4

Interior

Living Area:

3,917 Sq. Ft.


Structure

Structure

Architectural Style:

Patio Home, Traditional

Building Area:

3,917 Sq. Ft.

Year Built:

1998


Lot

Lot Size (Sq. Ft):

10,049


Finances & Disclosures

Finances

Price:

$2,599,000

Price per Sq. Ft:

$663 per Sq. Ft.

Source:CRMLS
The information being provided by California Regional MLS (Southern California) is for the 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. Any information relating to real estate for sale referenced on this web site comes from the Internet Data Exchange (IDX) program of the California Regional MLS (Southern California). Coldwell Banker Select Realty is not a Multiple Listing Service (MLS), nor does it offer MLS access. This website is a service of Coldwell Banker Select Realty, a broker participant of California Regional MLS (Southern California). This web site may reference real estate listing(s) held by a brokerage firm other than the broker and/or agent who owns this web site. The accuracy of all information, regardless of source, including but not limited to open house information, square footages and lot sizes, is deemed reliable but not guaranteed and should be personally verified through personal inspection by and/or with the appropriate professionals. The data contained herein is copyrighted by California Regional MLS (Southern California) and is protected by all applicable copyright laws. Any unauthorized dissemination of this information is in violation of copyright laws and is strictly prohibited. Copyright 2021 California Regional MLS (Southern California). All rights reserved.

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Yes, I would like more information. Please use and/or share my information with a Coldwell Banker ® affiliated agent to contact me about my real estate needs. By clicking Contact, I request to be contacted by phone or text message and consent to being contacted by automated means. I understand that my consent to receive calls or texts is not a condition of purchasing any property, goods, or services. Alternatively, I understand that I can access real estate services by email or I can contact the agent myself.

If a Coldwell Banker affiliated agent is not available in the area where I need assistance, I agree to be contacted by a real estate agent affiliated with another brand owned or licensed by Anywhere Real Estate (BHGRE®, CENTURY 21®, Corcoran®, ERA®, or Sotheby's International Realty®). I acknowledge that I have read and agree to the terms of use and privacy notice.