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$12,900,000

For Sale - Active
640 Los Trancos Rd, Portola Valley, CA 94028
4 Beds
3 Baths
3,421 Square Feet
12.55 Acres Lot
Built in 1959
For Sale - Active
Units n/a
Checked: 17 hours ago
Updated: Aug 19, 2025 at 10:25AM

Investment Summary


Potential Missing Expenses

We noticed that property taxes are missing—this is a standard expense and should be considered in your estimate.

Monthly Cash Flow
-$62,469
Cap Rate
0.3%
Cash-on-Cash Return
-25.3%
Debt Coverage Ratio
0.04
Internal Rate of Return (5 years)
-20.4%

Property Description


12.55 Acres Lot
Built in 1959
For Sale - Active
Units n/a

Stunning vistas of the hills and bay in this once in a lifetime opportunity to own 12.55 acres in Palo Alto Open Space with a Portola Valley mailing address located on an exclusive private road. Build a new estate or remodel the existing mid-century style home with expansive hill views. Large living room with high ceilings and separate dining room have breathtaking views. Family room/solarium is off the eat-in kitchen with island. Two bedroom suites one being the large primary bedroom and two bedrooms with Jack and Jill bathroom. Garage converted refinished into a studio plus large workshop and storage. Separate two bedroom guest cottage with living room with fireplace and sunny deck with views. Sunny Pool surrounded by gardens. Tennis court was built before land was subdivided and is partially on neighbor's property. Property has Greenhouses and sheds for storage, a walking trail on the property, and is very private but close to shopping, Menlo Park and 280 corridor to Silicon Valley. The bay view photos were from the trail on the back part of the property.

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Location


Property Details


Parking

  • Garage Spaces: 0
  • Spaces Total: 0

Bedroom Information

  • # of Bedrooms: 4

Bathroom Information

  • # of Baths (Full): 3
  • # of Baths (Total): 3.0

Interior Features

  • Basement: Yes
  • Fireplace: Yes

Exterior Features

  • Foundation: Slab
  • Roof Material: Shingle
  • Pool: Yes

Land Information

  • Land Use: Residential
  • Land Use Subtype: Single Family Residential

Lot Information

  • Parcel ID: 18238031
  • Lot Size: 546678 sqft

Property Information

  • Property Type: Single Family Residence
  • Style: Ranch
  • Year Built: 1959

Tax Information

  • Annual Tax: $0

Utilities

  • Heating: Heat Pump
  • Cooling: None

Location

  • County: Santa Clara

Listing Details


Listed by:
Sue Crawford
Coldwell Banker Realty
(650) 207-8444

Source:
bridgeMLS
MLS#: ML81999832
bridgeMLS

Investment Summary


Potential Missing Expenses

We noticed that property taxes are missing—this is a standard expense and should be considered in your estimate.

Monthly Cash Flow
-$62,469
Cap Rate
0.3%
Cash-on-Cash Return
-25.3%
Debt Coverage Ratio
0.04
Internal Rate of Return (5 years)
-20.4%

Purchase Details

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Purchase price:
$12,900,000
Amount financed:
-$10,320,000
Down payment:
$2,580,000
Closing costs:
$387,000
Rehab costs:
$0
Initial cash invested:
$2,967,000
Square feet:
3,421
Cost per square foot:
$3,771
Monthly rent per square foot:
$1.17

Financing Details

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Loan amount:
$10,320,000
Loan to value ratio:
80.0%
Loan type:
Amortizing
Term:
30 years
Interest rate:
6.500%
Principal & interest:
$65,229
Property tax:
$0
Insurance:
$280
Private mortgage insurance (PMI):
$0
Monthly payment:
$65,509

Operating Income

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% Rent Monthly Yearly
Gross rent:
$4,000 $48,000
Vacancy loss: (6%)
6% -$240 -$2,880
Operating income:
$3,760 $45,120

Operating Expenses


% Rent Monthly Yearly
Property taxes: (n/a)
n/an/an/a
Insurance: (7%)
7%-$280-$3,360
Property management: (8%)
8%-$320-$3,840
Repairs & maintenance: (5%)
5%-$200-$2,400
Capital expenditures: (5%)
5%-$200-$2,400
HOA fees: (n/a)
n/an/an/a
Total operating expenses: (25%)
25%-$1,000-$12,000

Cash Flow


Monthly Yearly
Net operating income:
$2,760 $33,120
Mortgage payments:
-$65,229 -$782,748
Cash flow:
$62,469 $749,628