$4,000,000
1809 Diamond Knoll
Diamond Bar, CA 91765
Interested?
Listing agent: Monica De La Riva
Listing office: Lux Bancorp
Contact: 714-552-4222
Advertising broker: NJV Realty, DRE #02446814
MLS# DW26217188 · CRMLS
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About this home
STUNNING DIAMOND BAR ESTATE WITH PANORAMIC VIEWS! Welcome to luxury living in an exclusive gated community in the prestigious Diamond Bar Hills. This immaculate estate offers breathtaking mountain views, soaring…
Facts & features
Neighborhood insights
Area
Diamond Bar
Micro-markets vary by street. Ask NJV for street-level comps and commute notes.
Schools
Verify with district
Official ratings and boundaries must be confirmed with the school district.
Price / sq ft
$690
This home only. Sold comps give better context than a single automated value.
Walk & lifestyle
Tour the block
Live Walk Score® appears in the Walk & access panel when coordinates are available. For block-level feel, schedule a tour or ask about parks, shopping, and transit.
Location
1809 Diamond Knoll, Diamond Bar, CA, 91765
Map location is approximate and for reference only. Confirm boundaries, access, and disclosures with your agent before relying on location for decisions.
Property history
Listed Oct 6, 2026 at $4,000,000. On the market for 24 days. The public record does not show a different earlier price.
Oct 6, 2026
Listed at $4,000,000
The listing agreement is dated Oct 1, 2026. It went on the market Oct 6, 2026.
Now
Asking $4,000,000
No price change is recorded in the public listing fields.
- Status
- Active
- Days on market
- 24
- MLS number
- DW26217188
Source: CRMLS
About this information
List prices, original list price, previous list price, and price-change timestamps shown here are supplied by CRMLS through the IDX feed when available. NJV Realty does not invent intermediate price points. A listing may have had additional changes that are not included in the public IDX fields. Data is deemed reliable but not guaranteed. This is not an appraisal, formal opinion of value, or Comparative Market Analysis (CMA). For a formal CMA or valuation discussion, contact NJV Realty.
Price history
The asking price is $4,000,000. CRMLS has not sent an earlier price.
Asking price
$4,000,000
Listed Oct 6, 2026
Source: CRMLS
About this information
List prices, original list price, previous list price, and price-change timestamps shown here are supplied by CRMLS through the IDX feed when available. NJV Realty does not invent intermediate price points. A listing may have had additional changes that are not included in the public IDX fields. Data is deemed reliable but not guaranteed. This is not an appraisal, formal opinion of value, or Comparative Market Analysis (CMA). For a formal CMA or valuation discussion, contact NJV Realty.
Schools
Always confirm attendance boundaries with the district — assignment is by address, not city name alone.
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District & public links
- Walnut Valley Unified ↗
- GreatSchools school finder ↗Third-party ratings — verify boundaries
- California School Directory (CDE) ↗
School data © GreatSchools.org. Ratings and assignment should be verified with the district.
Work with NJV
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Talk to a listing agent →5.0 from 3 Google reviews
As first-time homebuyers, we couldn't have asked for a better experience! From the day we started looking to getting our offer accepted took only two months, and just a month to close on the house. Since we both work during the week, we could only go house hunting on weekends. We'd find properties online, send them over, and Nick would set up everything for us, fitting in at least 3 or 4 house tours every weekend. He really knew the market and gave us real, honest pros and cons for each area, especially around safety, location convenience, and long-term value. During the loan process, Jessica was amazing to work with. She was super informative, always on top of things, and constantly kept us in the loop while guiding and reminding us on how to prep all the required documents. Whenever a question or unexpected issue came up, she handled it fast and took the stress off our shoulders. NJV Realty made the whole experience way easier than we expected. We trust them completely, will definitely work with them again in the future, and highly recommend them to anyone looking to buy a home!
Listing notices & complianceShow
Listing information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Data is deemed reliable but is not guaranteed accurate by CRMLS or NJV Realty. © Multiple Listing Service. All rights reserved. Listing data may not reflect all real estate activity in the market. Properties may have sold, been withdrawn, or changed price without notice. Square footage, lot size, room counts, and other measurements are approximate and should be independently verified. The listing broker’s offer of compensation is made only to participants of the MLS where the listing is filed. NJV Realty (Advertising Broker, California DRE #02446814) displays listings under the CRMLS IDX program when enabled; listing agent and listing office are identified on each property display.
Mortgage estimate for this home
Payment figures are estimates only — not a loan offer or rate lock. NJV Realty is a real estate brokerage.
Estimated Monthly Payment Range
$24,029 – $24,468/mo
Scenario at 6.50% with a conservative buffer. Not a loan offer or rate lock.
- Principal & Interest$20,226
- Property Tax$3,667
- Insurance$267
- HOA$308
- Total Interest (life of loan)$4,081,424
Based on these assumptions
$24,029 – $24,468/mo estimated range
$4,000,000 home · $800,000 down (20%) · 30-yr fixed at 6.50% default rate assumption · $44,000/yr tax (~1.10% estimate) · $3,200/yr insurance · no PMI (20%+ down) · $308/mo HOA.
Even when a market rate snapshot is displayed, mortgage rates change daily and vary by borrower, loan amount, occupancy, and lock period. The rate shown is not guaranteed and is not a rate lock until confirmed in writing by a licensed loan originator.
Payment ranges on this site use stated assumptions — including an estimated interest rate, property tax rate by ZIP (or California average), home insurance by price tier, and HOA dues you provide or we assume. These figures are for budgeting only and are not a loan offer. Your actual monthly payment will depend on your locked rate, credit profile, loan program, impounds, insurance quote, Mello-Roos or special assessments, and other costs determined at application.Information on this page — including payment estimates, rate examples, and pre-qualification discussions — does not constitute a loan offer, loan commitment, rate lock, or guarantee of credit approval. A formal Loan Estimate will be provided after you submit a complete application, as required by the TILA-RESPA Integrated Disclosure rule (TRID), Regulation Z (12 C.F.R. Part 1026) and Regulation X (12 C.F.R. Part 1024). All loans are subject to credit approval, property appraisal, underwriting guidelines, and investor requirements.