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!
For sale
Listed by: Coldwell Banker Realty • Jeanneth Madrid • Contact: 626-234-7526
$1,650,000
310 S Mountain Ave, Monrovia, CA 91016
4beds
2,261sqft
Single Family Residence
Built in 1951
0.44 Acres Lot
$1,623,200 Zestimate®
$730/sqft
$-- HOA
What's special
- 22 days
- 1,683
- 63
Likely to sell faster than
Zillow last checked:
Listing updated:
Listed by:
Jeanneth Madrid DRE #02139850 626-234-7526,
Coldwell Banker Realty,
Shirley Guerra DRE #02146926 626-824-5184,
Coldwell Banker Realty
Source: CRMLS,MLS#: AR26139837
Originating MLS: California Regional MLS
Originating MLS: California Regional MLSFacts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 2
- Full bathrooms: 1
- 3/4 bathrooms: 1
- Main level bathrooms: 2
- Main level bedrooms: 3
Rooms
- Room types: Attic, Bedroom, Converted Bedroom, Kitchen, Laundry, Living Room, Primary Bedroom, Dining Room
Bedroom
- Features: All Bedrooms Down
Bathroom
- Features: Bathtub, Separate Shower, Walk-In Shower
Kitchen
- Features: Kitchen Island, Tile Counters, Utility Sink
Heating
- Central, Fireplace(s), Solar
Cooling
- Central Air, Attic Fan
Appliances
- Included: Built-In Range, Double Oven, Disposal, Microwave, Refrigerator, Tankless Water Heater, Dryer, Washer
- Laundry: Inside
Features
- Beamed Ceilings, Wet Bar, Built-in Features, Ceiling Fan(s), Separate/Formal Dining Room, Bar, All Bedrooms Down, Attic
- Flooring: Carpet, Stone, Tile, Wood
- Has fireplace: Yes
- Fireplace features: Den, Gas, Living Room, Primary Bedroom
- Common walls with other units/homes: No Common Walls
Interior area
- Total interior livable area: 2,261 sqft
Video & virtual tour
Property
Parking
- Total spaces: 4
- Parking features: Circular Driveway, Driveway, Electric Gate, Garage, Garage Door Opener, RV Hook-Ups, RV Access/Parking
- Garage spaces: 4
Features
- Levels: One
- Stories: 1
- Entry location: 1
- Patio & porch: Concrete, Front Porch, Patio
- Exterior features: Lighting, Rain Gutters
- Pool features: None
- Spa features: None
- Fencing: Wood
- Has view: Yes
- View description: Mountain(s)
Lot
- Size: 0.44 Acres
- Features: Back Yard, Desert Front, Front Yard, Landscaped, Rectangular Lot, Sprinkler System
Details
- Additional structures: Shed(s)
- Parcel number: 8526002025
- Special conditions: Standard
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Craftsman
- Property subtype: Single Family Residence
Materials
- Stone, Stucco, Copper Plumbing
- Foundation: Concrete Perimeter, Raised, Slab
- Roof: Shingle
Condition
- Turnkey
- New construction: No
- Year built: 1951
Utilities & green energy
- Electric: 220 Volts
- Sewer: Public Sewer
- Water: Public
- Utilities for property: Electricity Available, Natural Gas Available, Phone Available, Sewer Available, Water Available
Green energy
- Energy efficient items: Water Heater
- Energy generation: Solar
Community & HOA
Community
- Features: Biking, Curbs, Hiking, Sidewalks
- Security: Prewired, Security Gate
Location
- Region: Monrovia
Financial & listing details
- Price per square foot: $730/sqft
- Tax assessed value: $284,335
- Date on market: 8/11/2026
- Cumulative days on market: 22 days
- Listing terms: Cash,Cash to New Loan,1031 Exchange
- Inclusions: Refrigerator, Washer, Dryer, Microwave
- Exclusions: All curated collectables and globally sourced décor are offered for purchase separately and are not included in the sale. Each piece was intentionally chosen to enhance the home’s unique and decadent aesthetic.
- Road surface type: Paved
Estimated market value
$1,623,200
$1.54M - $1.70M
$5,623/mo
Price history
| Date | Event | Price |
|---|---|---|
| 8/11/2026 | Listed for sale | $1,650,000$730/sqft |
Source:  CRMLS #AR26139837 Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2026 | -- | $284,335 +2% |
| 2025 | $4,338 +3.3% | $278,760 +2% |
| 2024 | $4,199 +2.2% | $273,296 +2% |
| 2023 | $4,109 +2.8% | $267,938 +2% |
| 2022 | $3,999 +2.1% | $262,685 +2% |
| 2021 | $3,917 +2.8% | $257,535 +1% |
| 2020 | $3,811 | $254,895 +2% |
| 2019 | $3,811 +9.3% | $249,898 +2% |
| 2018 | $3,486 | $244,999 +2% |
| 2017 | $3,486 +1.9% | $240,196 +2% |
| 2016 | $3,421 +2.4% | $235,488 +1.5% |
| 2015 | $3,341 +2.8% | $231,951 +2% |
| 2014 | $3,248 | $227,409 +2.5% |
| 2012 | -- | $221,944 +2% |
| 2011 | -- | $217,593 +0.8% |
| 2010 | -- | $215,968 -0.2% |
| 2009 | -- | $216,482 +2% |
| 2008 | -- | $212,239 +2% |
| 2007 | -- | $208,078 +2% |
| 2006 | -- | $203,999 |
| 2005 | -- | $203,999 +4% |
| 2004 | -- | $196,079 +1.9% |
| 2003 | -- | $192,486 +2% |
| 2002 | -- | $188,713 +4% |
| 2000 | -- | $181,387 |
Find assessor info on the county website
Monthly payment
Est. payment
Payment breakdown
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Neighborhood: 91016
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