18679 Diddy Circle, Fountain Valley, CA 92708
Single-family home · 2 recorded sales since 2015
Sold September 2026
Listing Agent: Lily Campbell (DRE #01229782) · Listing Office: First Team Real Estate · Contact: 714-717-5095 · Bought with: Lily Campbell · First Team Real Estate · MLS #OC26161392 · Source: CRMLS
How this sale compares
18679 Diddy Circle sold for $2,400,000 in September 2026, 7.7% under its $2,599,000 list price, after 15 days on the market. That works out to $631 per square foot on 3,804 square feet. Across 189 closed sales in 92708 over the last 12 months, the median sold price is $1,425,000 and the median is $702 per square foot — 11% above this sale's $631.
| Quarter | Closed sales in 92708 | Median sold price |
|---|---|---|
| Q1 2026 | 14 | $1,487,500 |
| Q2 2026 | 90 | $1,467,500 |
| Q3 2026 | 85 | $1,400,000 |
Figures are MLS-reported closed sales (CRMLS); ZIP medians cover the last 12 months. Nalren does not estimate values. Recently sold in Fountain Valley · Homes for sale in 92708
About this single-family home
Rarely does a Fountain Valley home offer nearly 3804 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 3,020 square foot main residence and an attached 784 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.
Listing description from the September 2026 sale, as reported to CRMLS.
Sale history
Recent sales near 18679 Diddy Circle
- 18775 Santa Mariana — Sold $1,350,000 · 3 bd · 2 ba · 1,943 sqft · Aug 2026 · 0.1 mi
- 8938 Martin Avenue — Sold $1,950,000 · 4 bd · 3 ba · 2,547 sqft · Sep 2026 · 0.2 mi
- 8912 Cardinal Avenue — Sold $1,699,000 · 6 bd · 4 ba · 2,249 sqft · Aug 2026 · 0.2 mi
- 18430 Colville — Sold $1,580,000 · 4 bd · 3 ba · 1,984 sqft · Aug 2026 · 0.6 mi
- 9376 Siskin — Sold $1,450,000 · 3 bd · 2 ba · 1,414 sqft · Aug 2026 · 0.6 mi
- 9357 Warbler Avenue — Sold $1,369,000 · 3 bd · 2 ba · 1,412 sqft · Aug 2026 · 0.6 mi
- 8603 Shadow Lane — Sold $1,039,000 · 3 bd · 3 ba · 1,709 sqft · Jul 2026 · 0.7 mi
- 131 Laburnum Lane 29 — Sold $189,900 · 4 bd · 2 ba · 1,392 sqft · Sep 2026 · 0.7 mi
MLS-reported closed sales in 92708, nearest first (last 12 months). All recent sales in Fountain Valley →
Questions about 18679 Diddy Circle
When did 18679 Diddy Circle last sell?
18679 Diddy Circle last sold in September 2026 for $2,400,000, according to CRMLS-reported closed sales. Nalren has 2 recorded sales at this address since 2015.
What did 18679 Diddy Circle sell for?
$2,400,000, 7.7% below the $2,599,000 list price, after 15 days on the market — about $631 per square foot.
How does that compare to other Fountain Valley sales?
189 homes closed in ZIP 92708 over the last 12 months at a median of $1,425,000 ($702 per square foot). This sale was $631 per square foot.
Is 18679 Diddy Circle for sale now?
18679 Diddy Circle is not currently listed on the MLS. Browse current homes for sale in Fountain Valley on Nalren.