For sale · Active

1112 Summitridge

Diamond Bar, CA 91765

$1,595,000
Bedrooms & bathrooms5 Beds • 3 Baths
Living area3,203 Sq Ft
Lot size0.1447 acres
Property typeSingle Family Residence
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Listing broker / agent: Marshall Reddick Real Estate · A.J. Bialik · 9496971934 · CRMLS

MLS # OC26211241 · Last checked Oct 19, 2026 05:53 UTC

About this property

Welcome to 1112 Summitridge! Where you will find timeless Tudor character, exceptional craftsmanship, and a floor plan designed for the way people actually live. This distinctive 5-bedroom, 3-bath residence pairs generous proportions and extensive natural materials with thoughtful upgrades that enhance functionality while preserving the home’s architectural warmth. Custom leaded-glass double entry doors open to a foyer finished in genuine Italian marble. Brazilian cherry hardwood enriches the formal living and dining rooms, while large format travertine flows throughout the kitchen, family room, wet bar, downstairs bath, laundry, and hallway. Custom millwork, crown molding, solid-wood details, and built-in cabinetry further distinguish the interiors. At the heart of the home, the extensively remodeled kitchen was expanded approximately 30% from the original builder configuration and features custom Signature cabinetry, granite countertops, a full height tumbled travertine backsplash, illuminated display cabinetry, and an expansive single level peninsula with exceptional storage. Premium appliances include a 48-inch Sub Zero refrigerator, Wolf appliances, double dishwasher drawers, and an oversized Villeroy & Boch farmhouse sink. The kitchen opens to a spacious family room anchored by an oversized brick fireplace and an adjacent redesigned wet bar with custom cabinetry, wine refrigerator, and bar sink. The versatile floor plan includes a main-level bedroom and full bath, ideal for guests, an office, or multigenerational living. Upstairs, the extraordinary primary suite functions as a private wing, featuring a separate retreat divided by a double-sided marble fireplace, custom walk-in closet, dual bath arrangement, and a large private balcony overlooking the rolling hills and distant lake. Three additional bedrooms are generously proportioned, including an exceptional oversized room with vaulted ceilings, French doors, custom library built-ins, and dormer window seating. Outside, a custom pool framed by stone and brick detailing creates a private setting against peaceful pastoral views, where rolling hills and grazing horses and cattle can often be seen in the distance. You will not want to miss this opportunity to have a home with the rare combination of architectural character, substantial natural materials, custom craftsmanship, flexible living spaces, and serene surroundings, all within the highly regarded Walnut Valley Unified School District

Property details

MLS number
OC26211241
Status
Active
Type
Residential
Subtype
Single Family Residence
Beds / baths
5 Beds • 3 Baths
Living area
3,203 Sq Ft
Lot size
0.1447 acres
County
Los Angeles
Year built
1987
Stories
2
More property detailsExpandCollapse

Listing

Days on market
18

Building

Year built
1987
Year built source
Assessor
Architectural style
Tudor
Stories
2
Building stories
2
Levels
Two
Entry level
1
Roof
Concrete, Tile
Foundation
Slab
Condition
Updated Remodeled, Turnkey
Living area source
Assessor

Bathrooms

Full bathrooms
3

Rooms & interior

Main-level bedrooms
1
Main-level bathrooms
1
Rooms
Bonus Room, Bedroom, Den, Entry Foyer, Family Room, Foyer, Kitchen, Laundry, Living Room, Primary Bathroom, Primary Bedroom, Office, Other
Appliances
Six Burner Stove, Double Oven, Dishwasher, Freezer, Gas Range, Microwave, Refrigerator, Warming Drawer
Interior features
Balcony, Eat In Kitchen, Granite Counters, High Ceilings, Two Story Ceilings, Bar, Wired For Sound, Bedroom On Main Level, Entrance Foyer, Primary Suite, Walk In Closets
Flooring
Bamboo, Laminate, See Remarks, Stone, Tile, Vinyl, Wood
Heating
Central
Cooling
Central Air
Fireplace
Family Room, Gas, Primary Bedroom, Wood Burning
Laundry
Laundry Room

Exterior & parking

Total parking spaces
6
Garage spaces
3
Parking
Door Multi, Garage Faces Front, Garage, Paved
Attached garage
Yes
Pool
In Ground, Private
Spa
In Ground, Private
Patio / porch
Concrete, Covered, Deck, Front Porch
Lot features
Back Yard, Front Yard, Garden, Near Park, Walkstreet, Yard
Lot size source
Assessor
Fencing
Vinyl, Wrought Iron
Property outlook
Canyon, Hills, Lake, Neighborhood, Panoramic

Utilities & community

Water
Public
Sewer
Public Sewer
Community features
Curbs, Dog Park, Foothills, Gutters, Storm Drains, Street Lights, Suburban, Sidewalks, Park

Fees & lease terms

Association
No
Association fee
$0.00

Schools reported in the listing

Elementary school
Quail Summit
Middle / junior school
Chaparral
High school
Diamond Bar
High school district
Walnut Valley Unified

School information is supplied with the listing. Confirm current attendance boundaries and enrollment eligibility directly with the school district.

Explore the area

Nearby public schools

Within 5 miles

Nearby does not mean assigned. These are approximate straight-line distances from the property, not walking or driving routes. Confirm attendance boundaries, enrollment eligibility, grades and current school status directly with the district.

Nearby California public school locations, sorted by distance
School / districtGradesDistance
Pantera Elementary (school website, opens in a new tab) Pomona Unified · Diamond Bar K–6 0.7 mi
Quail Summit Elementary (school website, opens in a new tab) Walnut Valley Unified · Diamond Bar K–5 1.1 mi
Lorbeer Middle (school website, opens in a new tab) Pomona Unified · Diamond Bar 7–8 1.3 mi
Chaparral Middle (school website, opens in a new tab) Walnut Valley Unified · Diamond Bar 6–8 1.4 mi
Golden Springs Elementary (school website, opens in a new tab) Pomona Unified · Diamond Bar Not reported 1.6 mi
Diamond Ranch High (school website, opens in a new tab) Pomona Unified · Pomona 9–12 1.7 mi
Maple Hill Elementary (school website, opens in a new tab) Walnut Valley Unified · Diamond Bar K–5 1.8 mi
Armstrong Elementary (school website, opens in a new tab) Pomona Unified · Diamond Bar Not reported 1.9 mi

Source: California Department of Education · 2025-26 school locations. Downloaded Oct 2, 2026 UTC. This annual snapshot may not reflect later changes. Public schools only; not a complete list of education options. No ratings or attendance assignments are provided.

Check the California School Directory ↗

Price and tax history

Asking price

Current asking price
$1,595,000
MLS-reported original asking price
$1,595,000
Asking prices observed by this listing service
Observed (UTC)Asking price
Oct 2, 2026 06:03$1,595,000

MLS values are reported for this listing, not prior sales. Observation dates show when our importer saw an asking price, not when the MLS changed it. Up to 24 observations are retained; changes between refreshes may be missed. This is not a complete price or sales history.

Property taxes

Tax history is not available from the imported listing data.

Source: MLS feed. Only supplied tax years are shown, up to 10 years; this is not a county tax archive. Amounts may be corrected and taxes may change after purchase. Verify assessments and current taxes with the county. These values do not automatically fill the payment calculator.

Local inventory snapshot

Market trends in Diamond Bar

Active residential homes for sale in Diamond Bar, CA, available through this website's authorized feed. Includes residential subtypes; excludes rentals. Not the entire market or a valuation of this property.

Available listings126Current authorized inventory
Median asking price$1,121,500126 listings with a valid price
Median asking price / sq ft$564.74120 listings with confirmed sq ft
Median days on market36126 listings with MLS-reported days

Observed price activity · past 30 days

Listings with a reduction21
Listings with an increase1

22 currently active listings have an observed price-change pair ending in this period. A listing can appear in both counts.

Calculated 2026-10-19 07:14 UTC. Source: this website's authorized MLS inventory. Import progress, freshness rules and coverage affect the figures. Medians exclude missing/invalid values; price per sq ft is the median of individual listing ratios. Price observations are limited to the last 24 per listing and may miss changes between refreshes. This is not a complete 30-day market report, historical inventory trend, appreciation measure, or sold-price analysis.

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Loan assumptions and ownership costs

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