A true jewel box, lovingly maintained and thoughtfully updated, set amid one of the most extraordinary gardens you will find in Boulder. Inspired by years the owner and her family spent living in England, and by the gardening traditions she learned from her mother there, the lush English-style gardens have been lovingly cultivated over many years. Meandering plantings, mature vegetation and intimate outdoor spaces create a setting that feels private, established and truly special. Inside, the home is equally inviting, with abundant natural light, beautifully refinished hardwood floors throughout the main and upper levels, and Pella windows framing the beautiful surroundings. A bay window fills the living room with light while providing another wonderful vantage point for enjoying the gardens. The kitchen features maple cabinetry, slab granite countertops, stainless steel appliances and recessed lighting, and opens through a Pella sliding glass door to a large covered patio overlooking the gardens, creating a wonderful connection between indoor and outdoor living. The main-floor dining room, with its fireplace and brick and flagstone hearth, offers wonderful flexibility and could be converted to a cozy main-floor primary suite with the addition of a door. Upstairs, the light-filled primary bedroom and second bedroom are tucked beneath charming dormers, with window seats and reading nooks that add warmth and character. Seasonal Flatirons views provide another distinctly Boulder touch. The finished basement expands the living space with a large family room, updated full bath, nicely appointed laundry room and two additional bedrooms, one conforming and one non-conforming. Charming, intimate and beautifully cared for, this is a home where thoughtful updates, wonderful character and extraordinary gardens come together in a way that is increasingly difficult to find.
For sale
$800,000
525 S 46th St, Boulder, CO 80305
4beds
2,312sqft
Single Family Residence
Built in 1958
7,587 Square Feet Lot
$-- Zestimate®
$346/sqft
$-- HOA
What's special
- 3 days
- 2,144
- 312
Zillow last checked:
Listing updated:
Listed by:
Steve Altermatt 303-818-4336,
8z Real Estate
Source: IRES as distributed by MLS GRID,MLS#: 1070022
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 4
- Bathrooms: 3
- Full bathrooms: 2
- 1/2 bathrooms: 1
- Main level bathrooms: 1
Primary bedroom
- Description: Wood
- Features: Shared Primary Bath
- Level: Upper
- Area: 256 Square Feet
- Dimensions: 16 x 16
Bedroom 2
- Description: Wood
- Level: Upper
- Area: 135 Square Feet
- Dimensions: 9 x 15
Bedroom 3
- Description: Laminate
- Level: Basement
- Area: 156 Square Feet
- Dimensions: 12 x 13
Bedroom 4
- Description: Laminate
- Level: Basement
- Area: 144 Square Feet
- Dimensions: 9 x 16
Dining room
- Description: Wood
- Level: Main
- Area: 195 Square Feet
- Dimensions: 13 x 15
Family room
- Description: Laminate
- Level: Basement
- Area: 221 Square Feet
- Dimensions: 13 x 17
Kitchen
- Description: Wood
- Level: Main
- Area: 180 Square Feet
- Dimensions: 10 x 18
Laundry
- Description: Laminate
- Level: Basement
- Area: 60 Square Feet
- Dimensions: 6 x 10
Living room
- Description: Wood
- Level: Main
- Area: 238 Square Feet
- Dimensions: 14 x 17
Study
- Description: Wood
- Level: Main
- Area: 81 Square Feet
- Dimensions: 9 x 9
Heating
- Forced Air
Cooling
- Central Air, Ductless
Appliances
- Included: Electric Range, Dishwasher, Refrigerator, Washer, Dryer
- Laundry: Washer/Dryer Hookup
Features
- Eat-in Kitchen, Separate Dining Room
- Flooring: Wood
- Doors: 6-Panel Doors
- Windows: Window Coverings, Wood Frames, Bay or Bow Window, Storm Window(s)
- Basement: Full,Partially Finished
- Has fireplace: Yes
- Fireplace features: Dining Room
Interior area
- Total structure area: 1,428
- Total interior livable area: 2,312 sqft
- Finished area above ground: 1,428
Property
Parking
- Total spaces: 1
- Parking features: Attached
- Attached garage spaces: 1
- Details: Attached
Accessibility
- Accessibility features: Level Lot, Near Bus
Features
- Levels: Two
- Stories: 2
- Patio & porch: Patio
- Exterior features: Sprinkler System
- Fencing: Fenced,Wood
- Has view: Yes
- View description: Hills
Lot
- Size: 7,587 Square Feet
Details
- Parcel number: R0011392
- Zoning: RL-1
- Special conditions: Private Owner
Construction
Type & style
- Home type: SingleFamily
- Property subtype: Single Family Residence
Materials
- Brick
- Roof: Composition
Condition
- New construction: No
- Year built: 1958
Utilities & green energy
- Electric: XCEL
- Gas: XCEL
- Sewer: Public Sewer
- Utilities for property: Natural Gas Available, Electricity Available
Green energy
- Energy efficient items: Doors
Community & HOA
Community
- Subdivision: Martin Acres 3
HOA
- Has HOA: No
Location
- Region: Boulder
Financial & listing details
- Price per square foot: $346/sqft
- Tax assessed value: $846,800
- Annual tax amount: $5,046
- Date on market: 10/5/2026
- Listing terms: Cash,Conventional,FHA,VA Loan
- Electric utility on property: Yes
Estimated market value
Not available
Estimated sales range
Not available
Not available
Price history
| Date | Event | Price |
|---|---|---|
| 10/8/2026 | Listed for sale | $800,000+104.1%$346/sqft |
Source:  IRES as distributed by MLS GRID #1070022 Report a problem | ||
| 8/10/2019 | Listing removed | $2,885$1/sqft |
Source: Fox Property Management Report a problem | ||
| 7/26/2019 | Price change | $2,885-3.4%$1/sqft |
Source: Fox Property Management Report a problem | ||
| 7/5/2019 | Price change | $2,985-3.6%$1/sqft |
Source: Fox Property Management Report a problem | ||
| 6/27/2019 | Listed for rent | $3,095+3.3%$1/sqft |
Source: Fox Property Management Report a problem | ||
| 8/1/2018 | Listing removed | $2,995$1/sqft |
Source: Fox Property Management Report a problem | ||
| 7/18/2018 | Price change | $2,995-6.3%$1/sqft |
Source: Fox Property Management Report a problem | ||
| 6/19/2018 | Listed for rent | $3,195$1/sqft |
Source: Fox Property Management Report a problem | ||
| 12/16/2005 | Sold | $392,000+56.8%$170/sqft |
Source: Public Record Report a problem | ||
| 11/26/1999 | Sold | $250,000$108/sqft |
Source: Public Record Report a problem | ||
Public tax history
| Year | Property taxes | Tax assessment |
|---|---|---|
| 2025 | $4,986 +1.8% | $52,925 -12.4% |
| 2024 | $4,899 +12.9% | $60,414 -1% |
| 2023 | $4,338 +4.9% | $61,000 +30.6% |
| 2022 | $4,137 +2.7% | $46,718 -2.8% |
| 2021 | $4,030 | $48,062 +3.8% |
| 2020 | $4,030 +8.4% | $46,296 |
| 2019 | $3,719 | $46,296 +7.9% |
| 2018 | $3,719 | $42,890 -9.5% |
| 2017 | $3,719 +10.1% | $47,418 +21.5% |
| 2016 | $3,378 +5.6% | $39,020 +22.3% |
| 2015 | $3,199 +19.2% | $31,912 |
| 2014 | $2,683 +3.4% | $31,912 |
| 2013 | $2,594 +0.9% | $31,912 +3.1% |
| 2012 | $2,571 -1.3% | $30,965 |
| 2011 | $2,606 +7.1% | -- |
| 2010 | $2,433 +12.6% | $32,240 |
| 2009 | $2,162 +3.5% | $32,240 -4.6% |
| 2008 | $2,088 -0.5% | $33,780 |
| 2007 | $2,099 +3.9% | $33,780 +2.8% |
| 2006 | $2,021 +13.6% | $32,850 |
| 2005 | $1,778 +0.7% | $32,850 +12.8% |
| 2004 | $1,766 -4.7% | $29,110 |
| 2003 | $1,853 +10.3% | $29,110 +9.6% |
| 2002 | $1,680 | $26,560 -90.9% |
| 2001 | -- | $290,300 |
Find assessor info on the county website
Monthly payment
Est. payment
Payment breakdown
Explore the cost of this home by adjusting the details. Changes won't be saved.Climate risks
Neighborhood: Majestic Heights
Nearby schools
Schools provided by the listing agent
- Elementary: Creekside
- Middle: Southern Hills
- High: Fairview
Source: IRES as distributed by MLS GRID. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.
