21217 Washington Avenue 28, Walnut, CA 91789
Property · 2 recorded sales since 2020
Sold September 2026
Listing Agent: Iris Warren (DRE #00910270) · Listing Office: Iris Fay Warren · Contact: 323-252-5746 · Bought with: Fang Dai · NONMEMBER MRML · MLS #DW26123983 · Source: CRMLS
How this sale compares
21217 Washington Avenue 28 sold for $290,000 in September 2026, 5.8% under its $308,000 list price, after 55 days on the market. That works out to $201 per square foot on 1,440 square feet. Across 131 closed sales in 91789 over the last 12 months, the median sold price is $1,220,000 and the median is $610 per square foot — 203% above this sale's $201. 3-bedroom rentals in 91789 currently list at a median of $3,775 a month (4 listings).
| Quarter | Closed sales in 91789 | Median sold price |
|---|---|---|
| Q1 2026 | 11 | $1,200,000 |
| Q2 2026 | 57 | $1,220,000 |
| Q3 2026 | 63 | $1,238,888 |
Figures are MLS-reported closed sales (CRMLS); ZIP medians cover the last 12 months. Nalren does not estimate values. Recently sold in Walnut · Homes for sale in 91789
About this property
Located at Diamond Bar Mobile Home Estates Family Park/ All ages. This beautiful single-story home offers 1,440 square feet of living space featuring three bedrooms, two bathrooms, a bonus room, a spacious living room, remodeled kitchen, the hallway has been upgraded with new flooring. This home features dual-pane windows, upgraded gas stove with built in air fryer and WIFI, upgraded Water Heater, air conditioning/heating system, for year-round comfort. This home has a new Roof, Beautiful upgraded fireplace with black fire glass. Master bedroom also includes a mini split unit. The kitchen provides ample cabinet and counter space, including seating for casual dining, The kitchen has a Sky Light, quartz counter tops, bathrooms have also been upgraded. At the entrance, you will find a good size covered porch with gates for relaxing in any season. The laundry room has cabinets for extra storage, has its own separate entrance and provides convenient access to the carport. The exterior offers 3 car parking and a Large storage shed. The property features low-maintenance pavers and beautiful succulents that surround the front walk way. Ample size backyard for a bar-b-que, family gatherings and for kids to play. This community features swimming pool, jacuzzi and a beautiful club house. Award winning Schools Walnut Valley Unified School District. Walnut Elementary, South Pointe Middle School and Walnut HS. UPDATE: Mobile Home Park management requires application to be qualified and approved prior to purchase.
Listing description from the September 2026 sale, as reported to CRMLS.
Sale history
Recent sales near 21217 Washington Avenue 28
- 21217 Washington Avenue 107 — Sold $373,000 · 4 bd · 3 ba · 2,176 sqft · Jul 2026 · 0.0 mi
- 20739 Lycoming Street 16 — Sold $247,000 · 2 bd · 2 ba · 1,344 sqft · Aug 2026 · 0.6 mi
- 20982 Cornerstone Dr — Sold $1,015,000 · 4 bd · 3 ba · 1,830 sqft · Aug 2026 · 0.7 mi
- 21007 Parkridge Drive — Sold $1,060,000 · 3 bd · 2 ba · 1,709 sqft · Sep 2026 · 0.8 mi
- 21111 Valleyview Drive — Sold $1,285,000 · 3 bd · 3 ba · 1,811 sqft · Sep 2026 · 0.8 mi
- 20995 Glenbrook Dr — Sold $1,238,888 · 4 bd · 2 ba · 2,000 sqft · Aug 2026 · 0.8 mi
- 1321 Glenthorpe — Sold $1,319,000 · 4 bd · 3 ba · 2,432 sqft · Jul 2026 · 0.9 mi
- 20965 Deloraine Drive — Sold $1,108,800 · 4 bd · 2 ba · 1,783 sqft · Jul 2026 · 0.9 mi
MLS-reported closed sales in 91789, nearest first (last 12 months). All recent sales in Walnut →
Questions about 21217 Washington Avenue 28
When did 21217 Washington Avenue 28 last sell?
21217 Washington Avenue 28 last sold in September 2026 for $290,000, according to CRMLS-reported closed sales. Nalren has 2 recorded sales at this address since 2020.
What did 21217 Washington Avenue 28 sell for?
$290,000, 5.8% below the $308,000 list price, after 55 days on the market — about $201 per square foot.
How does that compare to other Walnut sales?
131 homes closed in ZIP 91789 over the last 12 months at a median of $1,220,000 ($610 per square foot). This sale was $201 per square foot.
Is 21217 Washington Avenue 28 for sale now?
21217 Washington Avenue 28 is not currently listed on the MLS. Browse current homes for sale in Walnut on Nalren.
What do 3-bedroom homes rent for in 91789?
3-bedroom rentals in 91789 currently list at a median of $3,775 per month across 4 listings on Nalren.