Seller's Agent in 2026
Jason Berns
Keller Williams Realty
(626) 243-4309
17 in this area
364 Total Sales
From the moment you arrive, the stature & grandeur of this remarkable residence are unmistakable. Welcome to the Upton Sinclair House, an iconic Spanish Colonial Revival estate originally built in 1923 & recognized as a Registered National Historic Landmark. Among the most storied homes in the City of Monrovia, this architectural treasure was purchased in 1942 by Pulitzer Prize-winning author Upton Sinclair, whose legacy remains deeply woven into the fabric of this extraordinary property. A custom stone-arched entry & handcrafted wood, wrought iron & glass front door introduce interiors rich in period detail & craftsmanship. Hardwood floors, intricate crown molding & a stone fireplace anchor the living room, which is framed by French doors that bring in abundant natural light. 2 of French doors open to a covered side patio, blending indoor & outdoor living. A masterfully carved wood archway with detailed pocket doors leads to the formal dining room. Multiple French doors open to intimate balconies & the side patio, creating an elegant setting. An intricately designed swinging door with stained glass detailing leads into the kitchen, where classic character meets thoughtful updates. Stone countertops, iconic black & white checkered flooring, stainless steel appliances & a cozy breakfast nook overlooking the garden. Pantry storage & access to the finished basement, currently housing laundry & a flexible bonus space, adds both charm & functionality. A custom interior wrought iron gate from the living area leads to the staircase to the 2nd level & a convenient 1/2 bathroom. Once upstairs, a barrel-ceiling hallway leads to 3 generously sized bedrooms. The primary suite features a decorative fireplace, multiple walk-in closets & French doors opening to private balconies. The ensuite bathroom accessible from both the hallway & primary showcases custom tilework, a pedestal sink & a glass-enclosed shower. Outdoors, a stone-laid patio with a covered lounge area & outdoor fireplace creates the perfect setting. The property includes a detached 2-car garage, bonus studio/storage space & a charming ADU with a kitchenette, 3/4 bathroom, a Murphy bed & a flexible living area. Thoughtfully designed landscaping & garden spaces wrap around the home. This rare offering combines architectural distinction & historical provenance, all supported by the financial benefits of a Mills Act designation. A once-in-a-generation opportunity for a true Southern California landmark
Last Agent to Sell the Property
Keller Williams Realty License #01787757 Listed on: 01/16/2026
| Date | Type | Sale Price | Title Company |
|---|---|---|---|
| Grant Deed | $2,137,500 | Lawyers Title Company | |
| Interfamily Deed Transfer | -- | Calcounties Title Nation | |
| Interfamily Deed Transfer | -- | Calcounties Title Nation | |
| Interfamily Deed Transfer | -- | Accommodation | |
| Grant Deed | $1,100,000 | Chicago Title Company | |
| Grant Deed | $725,000 | -- | |
| Gift Deed | -- | First American | |
| Grant Deed | $135,000 | -- |
| Date | Status | Loan Amount | Loan Type |
|---|---|---|---|
| Open | $1,355,000 | New Conventional | |
| Previous Owner | $413,000 | New Conventional | |
| Previous Owner | $417,000 | New Conventional | |
| Previous Owner | $440,000 | No Value Available | |
| Previous Owner | $231,000 | No Value Available |
| Date | Event | Price | List to Sale | Price per Sq Ft |
|---|---|---|---|---|
| 02/19/2026 02/19/26 | Sold | $2,137,250 | +6.9% | $801 / Sq Ft |
| 01/16/2026 01/16/26 | For Sale | $1,999,000 | -- | $750 / Sq Ft |
| Year | Tax Paid | Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. | Land | Improvement |
|---|---|---|---|---|
| 2025 | $5,345 | $370,000 | $235,500 | $134,500 |
| 2024 | $5,345 | $370,000 | $235,500 | $134,500 |
| 2023 | $7,284 | $524,000 | $333,500 | $190,500 |
| 2022 | $7,369 | $537,000 | $341,700 | $195,300 |
| 2021 | $7,324 | $535,000 | $340,500 | $194,500 |
| 2019 | $6,309 | $465,000 | $297,500 | $167,500 |
| 2018 | $6,495 | $485,000 | $310,300 | $174,700 |
| 2016 | $5,373 | $397,200 | $254,150 | $143,050 |
| 2015 | $5,074 | $376,400 | $239,530 | $136,870 |
| 2014 | $4,688 | $341,700 | $217,400 | $124,300 |
Seller's Agent in 2026
Jason Berns
Keller Williams Realty
(626) 243-4309
17 in this area
364 Total Sales
Buyer's Agent in 2026
DARRELL DONE
Coldwell Banker Realty
(626) 354-3551
1 in this area
70 Total Sales
Source: Pasadena-Foothills Association of REALTORS®
MLS Number: P1-25479
APN: 8520-013-029
Ask me questions while you tour the home.