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$3,995,000

For Sale - Active
3135 11th St, Boulder, CO 80304
5 Beds
6 Baths
6,187 Square Feet
0.22 Acres Lot
Built in 2005
For Sale - Active
Units n/a
Checked: 3 hours ago
Updated: May 29, 2025 at 12:54AM

Investment Summary


Monthly Cash Flow
-$17,055
Cap Rate
1.2%
Cash-on-Cash Return
-22.3%
Debt Coverage Ratio
0.18
Internal Rate of Return (5 years)
-17.5%

Property Description


0.22 Acres Lot
Built in 2005
For Sale - Active
Units n/a

Welcome to a stunning blend of refined elegance and modern innovation in one of Boulder’s sought-after Newlands neighborhood. Nestled just minutes from downtown and the majestic foothills, this custom-designed residence is a masterclass in craftsmanship and comfort. From the moment you enter, exquisite Brazilian teak flooring, rich knotty alder millwork, and hand-selected granite and stone details set a tone of timeless sophistication. Vaulted ceilings and strategically placed skylights bathe the interior in natural light, creating a warm, expansive ambiance throughout. The main level is thoughtfully designed for both daily living and elevated entertaining, featuring a formal dining room, a gourmet chef’s kitchen with a butler’s pantry, a spacious mudroom, and a flexible office or bedroom. A private studio with its own entrance and half bath offers the perfect space for creatives or remote professionals. The heart of the home is an inviting family room anchored by a striking stone gas fireplace with an antique barn timber mantel. Retreat to the luxurious primary suite, where a private deck offers foothill views, and amenities include a gas fireplace, spa-style bath with a jetted tub, steam shower, and a custom-designed walk-in closet. Upstairs, a loft with panoramic mtn vistas, an en-suite guest suite, a private laundry, and a second deck add to the home's comfort and appeal. The fully finished basement was designed with entertaining in mind—featuring a media/rec room with a wet bar, built-ins, drop-down movie screen, two additional guest suites with Jack-and-Jill bath, a private entrance, and hidden storage spaces. Outdoors, enjoy a secluded backyard retreat with a trellised patio, custom gas firepit, greenhouse, and raised garden beds. Eco-conscious upgrades include radiant floor heat, solar panels, whole-house water and air purification, two sump pumps, a backup generator, and more. Experience unmatched luxury, sustainability, and location!

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Location


Property Details


Parking

  • Description: Garage Door Opener, Heated Garage, Oversized
  • Details: Heated Garage, Oversized
  • Garage Spaces: 2
  • Spaces Total: 2

Bedroom Information

  • # of Bedrooms: 5

Bathroom Information

  • # of Baths (Full): 2
  • # of Baths (Partial): 2
  • # of Baths (Total): 6.0

Interior Features

  • # of Rooms: 19
  • # of Stories: 2
  • Basement: Yes
  • Basement Description: Sump Pump, Finished
  • Fireplace: Yes

Exterior Features

  • Exterior Walls Materials: Marble
  • Foundation: Slab
  • Roof Material: Composition

Land Information

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

Lot Information

  • Parcel ID: 146124407017
  • Lot Size: 9583 sqft

Property Information

  • Property Type: Single Family Residence
  • Style: Contemporary
  • Year Built: 2005

Tax Information

  • Annual Tax: $27,295

Utilities

  • Water & Sewer: Public
  • Heating: Radiant
  • Cooling: Ceiling Fan(s), Evaporative Cooling

Location

  • County: Boulder

Listing Details


Listed by:
Ryan Sondrup
NeXstep Real Estate Group
(303) 398-7012

Source:
REColorado
MLS#: 3974464
REColorado

Investment Summary


Monthly Cash Flow
-$17,055
Cap Rate
1.2%
Cash-on-Cash Return
-22.3%
Debt Coverage Ratio
0.18
Internal Rate of Return (5 years)
-17.5%

Purchase Details

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Purchase price:
$3,995,000
Amount financed:
-$3,196,000
Down payment:
$799,000
Closing costs:
$119,850
Rehab costs:
$0
Initial cash invested:
$918,850
Square feet:
6,187
Cost per square foot:
$646
Monthly rent per square foot:
$1.44

Financing Details

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Loan amount:
$3,196,000
Loan to value ratio:
80.0%
Loan type:
Amortizing
Term:
30 years
Interest rate:
6.840%
Principal & interest:
$20,921
Property tax:
$2,275
Insurance:
$623
Private mortgage insurance (PMI):
$0
Monthly payment:
$23,819

Operating Income

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% Rent Monthly Yearly
Gross rent:
$8,900 $106,800
Vacancy loss: (6%)
6% -$534 -$6,408
Operating income:
$8,366 $100,392

Operating Expenses


% Rent Monthly Yearly
Property taxes: (26%)
26%-$2,275-$27,295
Insurance: (7%)
7%-$623-$7,476
Property management: (8%)
8%-$712-$8,544
Repairs & maintenance: (5%)
5%-$445-$5,340
Capital expenditures: (5%)
5%-$445-$5,340
HOA fees: (n/a)
n/an/an/a
Total operating expenses: (51%)
51%-$4,500-$53,995

Cash Flow


Monthly Yearly
Net operating income:
$3,866 $46,392
Mortgage payments:
-$20,921 -$251,052
Cash flow:
$17,055 $204,660