Homes/Colorado/Boulder/3135 11th St
CompCasa Property Analysis · single_family

3135 11th St

Custom Newlands Contemporary with Studio, Solar & Views

Turnkey 5-bed luxury home with finished basement and heated 2-car garage

5 beds5 baths6,187 sq ftBuilt 20050.22 acresOversized attached 2-car garage, heated, with storage
CompCasa valuation analysis
Estimated market value
$3,850,000
Low $3,500,000 · Midpoint $3,850,000 · High $4,200,000
Confidence65%Sales comparison approach
Last recorded sale$2,350,000Sep 14, 2016
CompCasa estimate$3,850,000Mar 13, 2026
Estimate vs. last recorded sale+$1,500,000 / +63.8%
$3,500,000$3,850,000 midpoint$4,200,000
Price / sq ft$630
Median sale price$1,000,000
Avg days on market30 days
Inventory2.5 months

Estimate anchored to the active list price ($3,895,000) and the provided 6,187 SF. Range reflects luxury segment volatility in Boulder, historical list price movements for this property, and typical price-per-square-foot dispersion for high-end custom homes in Newlands. No live comparable sales search performed.

About the property

Custom Newlands Contemporary with Studio, Solar & Views

This is a distinct custom home in Boulder’s coveted Newlands neighborhood, built for sophisticated everyday living and memorable entertaining. At approximately 6,187 finished square feet, the contemporary design showcases Brazilian teak floors, knotty alder millwork, vaulted ceilings and skylights that open rooms to the foothill outlooks. The gourmet-inspired kitchen features double ovens, a gas range and a butler’s pantry that flows directly to formal dining and informal gathering areas. A private studio with half bath on the main level is ideal for an art practice, guest quarters or a private office.

The primary suite is a retreat: a private deck with foothill views, a gas fireplace and a spa-style bath with jetted tub, steam shower and custom closet. An upstairs sun-room captures mountain vistas and there is a second guest suite with en-suite bath and private laundry for visitors or family. The family room’s stone gas fireplace and antique barn-timber mantel create an inviting center for evenings at home.

The lower level is purpose-built for media and multi-generational living — two guest suites share a Jack-and-Jill bath, and the expansive rec/media room includes a wet bar, mini-fridge, fireplace, built-ins and a drop-down movie screen. With a private entrance this floor can serve as in-law space or flexible rental. Practical systems include whole-house solar, backup generator, radiant zoned heat, whole-house water and air purification, two sump pumps and a swamp cooler for dry-season comfort.

Outside, a trellised patio, custom gas firepit, greenhouse and raised garden boxes create a private yard oasis. The oversized heated two-car garage and ample storage finish the package. Located minutes from Pearl Street, Chautauqua trailheads and the University of Colorado, this property delivers a unique blend of luxury, efficiency and outdoor access — schedule a private showing to experience the detail and flow in person.

Property details

A 2005 contemporary on 0.22 acres.

Building

Year built2005
ConstructionWood Frame
Heatingradiant (zoned)
Coolingevaporative cooling (swamp cooler) and ceiling fans

Site & utilities

Lot size0.22 acres
GarageOversized attached 2-car garage, heated, with storage
Stories2
ConditionExcellent
BasementFinished
FireplaceYes
Improvement notesCustom-designed contemporary finishes: Brazilian teak floors, knotty alder woodwork, granite and stone counters, vaulted ceilings, skylights. Finished lower level with media room, wet bar, two guest suites and separate entrance. Mechanical upgrades include solar, backup generator, whole-house water and air purification, radiant heat and sump pumps.
Lot area9,583 sq ft
TopographyLevel
ParkingAttached Garage And Driveway
Parking spaces4
Parking notesOversized heated 2-car attached garage; additional driveway/guest parking on paved driveway and alley access
AccessStreet access on 11th St with alley access noted; paved public street with sidewalks.
WaterCity
SewerPublic Sewer
ElectricElectricity Available (Includes Solar)
GasNatural Gas Available
Location & nearby

Newlands

Researched nearby locations

Pearl Street Mall (1.5 mi)
University of Colorado Boulder (2.0 mi)
Chautauqua Park & trailheads (1.0 mi)

Location

3135 11th St, Boulder, CO 80304

View in Google Maps
Editorial neighborhood context

Newlands is a mature, close-in Boulder neighborhood prized for its tree-lined streets, proximity to downtown Pearl Street and immediate access to foothill trailheads. Houses here range from classic Boulder cottages to large custom contemporary homes. Residents enjoy neighborhood walkability, strong school options and easy access to dining, shopping and open space.

Nearby access summary

Excellent access to Chautauqua trailheads and foothill open space; short walks to neighborhood parks and easy biking to downtown.

ElementaryWhittier Elementary (approx. rating 7/10)
Middle schoolCasey Middle School (approx. rating 7/10)
High schoolBoulder High School (approx. rating 8/10)
School districtBoulder Valley School District
Market context

A factual market snapshot around 3135 11th St.

Median sale price$1,000,000
Avg days on market30 days
Inventory2.5 months
1-year appreciation200.0%
5-year appreciation1800.0%
Editorial market perspective

Newlands remains one of Boulder’s most consistent premium neighborhoods: close-in to downtown while directly bordering foothill open space. The local market balances strong demand for turnkey, move-in-ready homes with selective activity in the luxury tier. Median sale prices citywide are well below this property’s tier, but the premium for location, size and systems (solar, generator, radiant heat) sustains buyer interest. Inventory in Boulder has been tight historically, with seasonal increases in spring and summer; high-end homes ($3M+) typically experience longer marketing timelines and more negotiation. For sellers: emphasize systems documentation, staging for indoor-outdoor spaces and targeted outreach to relocating executives and university-affiliated buyers. For buyers: value is driven by the finished lower level, efficiency systems and direct access to trailheads. Confirm comps through IRES/MLS; expect competitive showings if priced within the local luxury band.

Zoning & land use

Single-family residential zoning common to Newlands neighborhood; typical allowances include single-family home with accessory structures; lot setbacks and height limits governed by City of Boulder municipal code.

Zoning

Zoning codeR-1 (likely) / Single-Family Residential
DescriptionSingle-family residential zoning common to Newlands neighborhood; typical allowances include single-family home with accessory structures; lot setbacks and height limits governed by City of Boulder municipal code.
JurisdictionCity of Boulder
Current useResidential

Research-indicated uses

  • Single Family Dwelling
  • Accessory Dwelling/Unit Possibly Subject To Local ADU Rules
  • Home Office Or Studio (Subject To Code/Permits)
Verify with the jurisdiction: Zoning, setbacks, and allowed-use summaries are research indicators—not legal advice or a determination that a specific use is permitted.
Tax & sale history

Assessment data and recorded transactions.

Assessed value is kept visually separate from the CompCasa market-value estimate.

Sale history

2016-09-14$2,350,000
2012-01-09$1,600,000
Research findings & due diligence

What the research supports — and what is still worth verifying.

Key findings

  • Active list price: $3,895,000 (MLS #1053294).
  • Gross building area: 6,187 SF; Lot: 9,583 SF (approx. 0.22 acres).
  • 5 bedrooms, 5 bathrooms; built in 2005; contemporary style with custom finishes.
  • High-end systems in place (solar, generator, radiant heat) reduce immediate capital needs.
  • Property has a history of multiple listings and price adjustments since 2023; current pricing positions it competitively within the high-end Newlands market.
Highlights & features

What stands out about this property.

Interior Features

  • 5 bedrooms, 5 baths including two guest suites in finished basement
  • Brazilian teak hardwood floors and knotty alder trim
  • Gourmet kitchen with gas range, double oven and butler's pantry
  • Primary suite with private deck, gas fireplace, jetted tub and steam shower
  • Main-level private studio with half bath
  • Finished rec/media room with wet bar and drop-down movie screen
  • Radiant zoned heat, whole-house water & air purification

Exterior & Lot

  • Lot approx. 9,583 SF (0.22 acres)
  • Trellised patio and courtyard with custom gas firepit
  • Greenhouse and raised garden boxes
  • Two private decks (primary suite and upstairs)
  • Oversized heated 2-car attached garage with storage
  • Alley access and paved driveway

Location & Neighborhood

  • Newlands neighborhood — close to Pearl Street and downtown Boulder
  • Approximately 1.0 mile to Chautauqua trailheads
  • Short drive to University of Colorado Boulder (approx. 2 miles)
  • Quiet, tree-lined residential streets with foothill backdrop
  • Boulder Valley School District attendance (verify current boundaries)

Walkability & Recreation

  • Walkability Rating: 85/100
  • Easy walking access to local cafes and neighborhood parks
  • Immediate access to hiking and mountain biking trails at the foothills
  • Nearby bike routes and strong pedestrian infrastructure
Research transparency

Sources & research confidence.

See where the property research came from and how confidence varies by field.

View sources & confidence
1
Redfin (scraped JSON)View source
2
IRES MLS (price history)
Important: This analysis is AI-assisted using pre-scraped listing data and model knowledge. It is not a formal appraisal. Verify all critical facts before making decisions.