21030 Riego, Diamond Bar, California 91765, Diamond Bar, 91765 - 5 bed, 3 bath
21030 Riego
Diamond Bar, California 91765
Property Price
SUMMARY
Analysis of 21030 Riego, Diamond Bar, California 91765 reveals a property with a current list price of $1,428,000, which is 3% above the estimated $1,381,465 Fair Market Value. Buyers should carefully evaluate the pricing and consider negotiation opportunities. The property maintains a Excellent Condition Rating (95/100), indicating excellent structural integrity and modern finishes throughout. This turnkey property requires minimal updates and is ready for immediate occupancy. Located in a high-demand neighborhood within the Diamond Bar Unified School District, this asset is categorized as a low-risk, high-reward acquisition suitable for both Buy-and-Hold Investors and Owner-Occupants willing to undertake light renovation work.
Estimated Market Value
Comparable Sales Map
Comparables within 1 miles sold in recently
| Address | Sold Price | Beds | Baths | Sq Ft | $/Sqft | Distance |
|---|---|---|---|---|---|---|
★ 21030 Riego Subject | $1,428,000* List Price | 5 | 3 | 2,157 | $640 | - |
A 2968 Crooked Creek Drive Sold | $999,999 | 3 | 2 | 1,650 | $606 | 0.3 mi |
B 21307 Chirping Sparrow Road Sold | $1,330,000 | 4 | 3 | 2,302 | $578 | 0.7 mi |
C 2463 Harmony Hill Sold | $1,300,000 | 4 | 2 | 1,831 | $710 | 0.7 mi |
D 2624 Crooked Creek Drive Sold | $1,030,000 | 4 | 2 | 1,688 | $610 | 0.7 mi |
E 20920 Running Branch Active | $1,380,000 List Price | 4 | 3 | 2,558 | $539 | 0.8 mi |
* Subject property listed price vs sold prices of comps.
Condition Analysis
OVERALL CONDITION SCORE
Property is new construction or fully renovated.
The property has undergone a comprehensive 'down to the studs' renovation, including a complete infrastructure overhaul with new 200Amp electrical wiring, Type-L copper plumbing, new HVAC ducting, and new insulation. The interior is virtually new with a modern chef-inspired kitchen featuring European-style cabinetry and quartz countertops, all-new energy-efficient windows, and new fire-code drywall throughout, meeting the highest standards for recent extensive renovation.
PROSSTRENGTHS & OPPORTUNITIES
- Comprehensive Infrastructure Overhaul
Unlike typical cosmetic flips, this home features a complete 'down to the studs' renovation including new 200Amp electrical, Type-L copper plumbing, new HVAC ducting, and fire-code drywall.
- Elite School District
The property is located within the highly sought-after Walnut Valley Unified School District, a primary driver for property value and long-term appreciation in the Diamond Bar area.
- High-End Interior Finishes
The residence offers a modern chef-inspired kitchen with European-style cabinetry and Quartz countertops, paired with energy-efficient windows and a functional five-bedroom single-story layout.
CONSRISKS & DEFICIENCIES
- MLS Listing Discrepancy
Living area discrepancy between mls listing and other public or private record. mls listing living area = 2157, other record living area = 1892. Bedroom count discrepancy between mls listing and other public or private record. mls listing bedroom count = 5, other record bedroom count = 4.
- Pool Requires Refurbishment
While the home's interior is fully updated, the pool is noted as needing the 'owner’s personal touch,' implying potential immediate capital expenditure for resurfacing or equipment.
- Lack of Scenic Views
The listing explicitly states there is no view, which may be a competitive disadvantage in a hillside community like Diamond Bar where panoramic vistas are highly prized.
About 21030 Riego
This home goes beyond cosmetic updates with a complete infrastructure overhaul *** Electrical - upgraded 200Amp MAIN PANEL & whole-house WIRE REPLACEMENT *** Plumbing - full re-piping with durable Type-L COPPER *** New Insulation throughout the entire house & garage paired with New HVAC Ducting *** Interior defined by quality & safety, featuring ALL NEW FIRE-CODE drywall and ceilings, ALL NEW energy-efficient windows and patio door *** The chef-inspired kitchen showcases European-style cabinets, sleek Quartz countertop, an 18-gauge stainless steel single sink & all New appliances *** the curb appeal is enhanced by fresh paint, new garage door, new seamless gutters and a refurbished roof with new felt paper & reset tiles *** RV Parking available *** The backyard includes mature fruit trees and an established pool ready for its new owner’s personal touch *** easy access to freeway *** few minutes to market and school *** it's NOT a flip house *** Transformed 5-beds, 3-baths, Single-Story home, located in the highly sought-after Walnut School District. *** The residence has been renovated down to the studs, offering the peace of mind of a Brand-New home with the character of an established neighborhood. ***
Property Details
Public Facts
- Property Type
- Single Family Residence
- Year Built
- 1980
- Lot Size
- 8,312 Sq. Ft.
Interior
- Total Bedrooms
- 5
- Total Bathrooms
- 3 (3 Full, 0 Half)
Exterior & Parking
No exterior & parking available.
Utilities & Misc
- HOA Fee
- $0 / Month
Neighborhood Insights
Sensitive Facilities
No sensitive facilities data found.
Neighborhood Comparison
| Feature | Subject | Average Home | Neighborhood Ranking (50 Listings) |
|---|---|---|---|
| Beds | 5.0 | 4.0 | 78% |
| Baths | 3.0 | 3.0 | 50% |
| Square foot | 2,157 | 1,923 | 63% |
| Lot Size | 8,312 | 9,883 | 32% |
| Price | $1.43M | $1.16M | 80% |
| Price per sq ft | $662 | $580 | 74% |
| Built year | 1980 | 1976 | 69% |
| HOA | $0 | $0 | 50% |
| Days on market | 40 | 164 | 4% |
Pricing History
Listed for Sale
Mar 5, 2026
$1,428,000
$1,449,999
-2% Price Drop
Initial Listing
Price Change
Feb 20, 2026
$1,449,999
$1,450,000
+0% Price Increase
Initial Listing
Price Change
Jan 26, 2026
$1,450,000
Initial Listing
Sold
Apr 25, 2024
$990,000
Public Record