310 S Mountain Avenue
Monrovia, CA, 91016
$1,650,000
MLS: AR26139837
Beds
4
Baths
2
Sq Ft
2,261
Lot
0.44 ac
Year Built
1951
MLS #
AR26139837
Days on Market
5
Listed
Aug 11, 2026
Description
Welcome to “The Ponderolo,” a one-of-a-kind architectural treasure located just minutes from Old Town Monrovia, nestled within the city’s beloved historic residential corridor. A true head-turner, this iconic residence has been cultivated over many years, resulting in a home rich in character, craftsmanship, and global inspiration. This distinctive property features 3 well-appointed bedrooms and 2 bathrooms, with the original 4th bedroom thoughtfully converted into a game room ideal for entertainment. The home sits behind a circular driveway framed by solid metal electric gates that provide both privacy and presence. The exterior is artfully curated with stone accents and sculptural cacti, setting the tone for the unique experience inside. Step through the front door into a living room anchored by a striking stone fireplace, where a custom ceiling—expertly designed with copper and rope detailing—creates a warm, inviting ambience. Just off the living room, an expansive entertainment lounge offers an ideal setting for gatherings, complete with a built-in bar and guest bath. The kitchen blends charm and functionality with newer appliances, a central island, and a dedicated wash sink. Adjacent to the dining area, an extended flex space with its own fireplace provides additional room for relaxation, creativity, or hosting. The home’s three bedrooms are thoughtfully positioned, with the primary suite offering its own fireplace and sliding doors that open directly to an outdoor patio—an ideal retreat for morning coffee or evening unwinding. Outdoors, the property transforms into an entertainer’s paradise with three beautifully positioned patios, each offering its own unique setting for gatherings, dining, or quiet reflection. The impressive 4-car garage is a standout feature—equipped with a built-in sound system, temperature control, and ample space for motorcycles, collectibles, or a personal workshop. No expense was spared in creating this exceptional space. Additional upgrades include a solar system, EV charger, and RV washout. The generous lot also provides an excellent opportunity to add an ADU and/or a pool, offering even more potential for customization. The owner’s world travels are reflected throughout the home, where curated pieces are displayed with museum-like intention. Every corner tells a story, and the experience feels like stepping into a private gallery of craftsmanship and culture. The Ponderolo welcomes you home!
Location
Monrovia, Los Angeles County, CA 91016
Open on Google Maps ↗Listed by: Jeanneth Madrid · Coldwell Banker Realty
Listing information is provided courtesy of the Greater Antelope Valley Association of Realtors (GAVAR) and California Regional MLS (CRMLS). Information is deemed reliable but not guaranteed accurate by the MLS or by Mike Watson. All data, including square footage, lot size, room count, permits, and school assignment, should be independently verified. Properties shown may be listed by brokerages other than Keller Williams Realty. Listings are subject to prior sale, change, or withdrawal without notice.
Payment estimate
$12,190
/ month (est.)
Principal, interest, taxes, and insurance + PMI. Down payment: $165,000 · Loan: $1,485,000
Average 30-yr fixed rate 6.67% as of Aug 13, 2026 (Freddie Mac PMMS). Adjust to your quote.
- Principal & Interest
- $9,553
- Property tax (1.25%)
- $1,719
- Homeowners insurance
- $300
- Mortgage insurance
- $619
Login required. The full tool supports FHA / VA / USDA, PMI by credit tier, lender fees, and total cash to close — with your inputs here carried over.
Today's Rates
As of Aug 13, 2026
- 30-year fixed
- 6.67%
- 15-year fixed
- 5.96%
Source: Freddie Mac Primary Mortgage Market Survey (PMMS). Updated weekly.
About the area · Mike Watson
About the Antelope Valley
The Antelope Valley spans Lancaster, Palmdale, Quartz Hill, Rosamond, Lake Los Angeles, California City, Edwards AFB, and the Plant 42 aerospace corridor. Mike Watson is a lifelong AV resident and the #1 producing individual Realtor in the region by transaction count. Every active listing on this site is paired with a free market analysis tailored to the specific street, honest financing guidance (FHA, VA, USDA, CalHFA, conventional, and assumable loans where the financing supports it), and side-by-side comparisons against the rest of the active inventory in your target ZIP.
Financing Options
FHA Financing — 3.5% Down＋
First-time and repeat buyers can purchase this Monrovia home with as little as 3.5% down using an FHA loan — roughly $57,750 down. FHA loans feature flexible credit guidelines and government-backed rates, making homeownership accessible for buyers who haven't saved a large down payment. Seller concessions up to 6% of the purchase price are also allowed.
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Local Market Stats
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Median sold price, days on market, active inventory, price brackets, and 12-month trends — pulled live from the MLS.
★#1 Producing Individual Realtor — Antelope Valley
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