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Back 10509 Challenge Boulevard
Off Market

10509 Challenge Boulevard

Casa de Oro-Mount Helix CA 91941

5
3
2
3000 sq. ft.
14500 sq. ft.
Single-Family
Last sold for $1,300,000
Brent EdwardsBrent Edwards, last sold this property on 25 February 2026 after 278 days on market.

Overview

HUGE REDUCTION! of $75k! Welcome to your private oasis in the heart of Mount Helix—a fully gated estate where nature meets modern charm. Tucked away on a flat and usable 14,000 sq ft lot, this beautifully updated home offers the perfect balance of peaceful living and everyday convenience.Step inside to discover a thoughtfully remodeled interior featuring luxury vinyl plank flooring throughout and a gorgeous upgraded kitchen that opens seamlessly into the dining area—ideal for entertaining. The spacious living room and view deck provide the perfect places to relax and take in the lush surroundings.Spread across the first level you’ll find four generously sized bedrooms, including an oversized primary suite with a fully renovated bath and large walk-in closet. Down below a bonus living room and a private lower-level bedroom offer flexibility for a home office, guest suite, or multi-generational living.The outdoor space is a dream come true for both entertainers and homestead enthusiasts alike. Enjoy a sparkling pool, expansive lawn, and bountiful garden featuring mature fruit trees and homegrown produce—including a 45-year-old top producing avocado tree, plus tangerines, pomelos, strawberries, blackberries, cucumbers, squash, and more. A full irrigation system keeps everything thriving year-round.Additional highlights include: *Fully owned solar* covers almost all electricity. Electric vehicle charging station. Detached two-car garage with ample storage, Separate laundry room with laundry chute.Fragrant star jasmine and thoughtfully curated landscaping in front and back.All of this, just minutes from dining, shopping, and top San Diego attractions—giving you the tranquility of rural-style living with the convenience of city access.Don’t miss your opportunity to own a true Mount Helix masterpiece.

Features

5 bedrooms
3 bathrooms
2 carspaces
2 garage spaces
3000 sq. ft. floor area
14500 sq. ft. lot size
Single-Family

Estimated Value

Based on this property and similar 5 bedroom single-family properties sold in Casa de Oro-Mount Helix over the last 12 months, the estimated median property value of 10509 Challenge Boulevard is $1.3m.

Median value
$1.3m
Estimated value range
$795k - $2.48m
Median days on market
24
Estimated value trend
-4%
decrease over the last 12 months
Average days on market is based on recent, comparable sales in Casa de Oro-Mount Helix. It is only an indication of the time a property is actively listed and should not be relied upon as an accurate representation of how soon a property will be sold.

Property history for 10509 Challenge Boulevard

2026
Sold
$1,300,000
25 Feb 2026 by Brent Edwards, of Brent The Broker
2022
Sold
$1,295,000
02 Sep 2022 by Charles Wheeler, of Redfin Corporation

Happy sellers in Casa de Oro-Mount Helix

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We have insufficient information to provide an overview of customer satisfaction for Casa de Oro-Mount Helix. Viewing the agent profiles, reviews and sales for Casa de Oro-Mount Helix can provide insights for this location.

Local market activity for 5 bedroom single-family properties in Casa de Oro-Mount Helix

In the last 12 months, 22 five-bedroom single-family properties similar to 10509 Challenge Boulevard, have been sold.

This represents a 21% increase in five-bedroom single-family properties sales when compared to the previous 12 months.

Nearby agents

Compare and contact these top performing agents who’ve delivered exception customer service for their clients in Casa de Oro-Mount Helix

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Richard Woods

Sellers who recommend Richard Woods have praised them for being local expert, clear communication, responsive, reliable, great negotiation, supportive, and pleasant

  •   5   (83 reviews)
  •  1 Review in Casa de Oro-Mount Helix
  •  3 Sales in Casa de Oro-Mount Helix
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John Anthony Silva

Sellers who recommend John Anthony Silva have praised them for being detail-oriented, responsive, reliable, and local expert

  •   5   (12 reviews)
  •  1 Review in Casa de Oro-Mount Helix
  •  1 Sale in Casa de Oro-Mount Helix
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Tami Fuller

Sellers who recommend Tami Fuller have praised them for being local expert, great negotiation, clear communication, reliable, responsive, supportive, and great team

  •   5   (133 reviews)
  •  1 Review in Casa de Oro-Mount Helix
  •  1 Sale in Casa de Oro-Mount Helix
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Darinka Guzman-Alvarado

Darinka Guzman-Alvarado is a recommended agent for Casa de Oro-Mount Helix.  They have 1 local sale and collected 1 local review across the last 12 months.

  •   4.8   (4 reviews)
  •  1 Review in Casa de Oro-Mount Helix
  •  1 Sale in Casa de Oro-Mount Helix
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