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$899,000
28 Days On Site

504 E Simpson Street A & B
Lafayette, CO 80026

For Sale|Single Family Residence|Active
4
Beds
3
Total Baths
3
Full Baths
1,988
SqFt
$452
/SqFt
1900
Built
Subdivision:
Old Town
County:
Boulder
504 E Simpson Street A & B504 E Simpson Street A & B504 E Simpson Street A & B504 E Simpson Street A & B
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Mortgage Calculator

Monthly Payment (Est.)

$4,102
Calculator powered by Showcase IDX, a Constellation1 Company. Copyright ©2026 Information is deemed reliable but not guaranteed.

Historic Old Town Lafayette charm meets modern living on E Simpson! Home and ADU!! This beautifully reimagined and remodeled 3BD/2BA home offers timeless hardwood floors throughout, and a primary suite with vaulted ceilings, bright skylights, and double doors opening directly to the relaxing back deck. The property also features a ~500 sq ft ADU with its own kitchen, laundry, A/C, radiant heating, and private alley access, plus a 2-car garage/workshop and a unique elevated treehouse with electricity, perfect for a creative studio or bonus office. Enjoy raised garden beds and mature shade trees, all just a stroll from vibrant cafes, shops, and dining. The ADU offers exceptional flexibility as a rental, guest suite, or work-from-home space. A rare combination of historic character, modern updates, and incredible versatility in one of Lafayette's most walkable neighborhoods.

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Listing Snapshot
Price 
$899,000
Days On Site 
28 Days
Bedrooms 
4
Inside Area (SqFt) 
1,988 sqft
Total Baths 
3
Full Baths 
3
Partial Baths 
N/A
Lot Size 
0.16 Acres
Year Built 
1900
MLS® Number 
IR1066093
Status 
Active
Property Tax 
$4,657
HOA/Condo/Coop Fees 
N/A
Sq Ft Source 
Assessor
Friends & Family
Recent Activity
22 hours agoListing updated with changes from the MLS®
6 days agoPrice changed to $899,000
4 weeks agoListing first seen on site
General Features
Acres 
0.16
Additional Property Use 
Residential
Direction Faces 
North
Garage 
Yes
Garage Spaces 
2
Levels 
One
Parking Spaces 
2
Property Sub Type 
Single Family Residence
Security 
Smoke Detector(s)
Sewer 
Public Sewer
SqFt Above 
1988
SqFt Total 
1988
Style 
Contemporary
Utilities 
Cable AvailableElectricity AvailableNatural Gas Available
Water Source 
Public
Zoning 
RES
Interior Features
Appliances 
DishwasherDisposalDryerOvenRefrigeratorWasher
Basement 
None
Cooling 
Ceiling Fan(s)
Heating 
Forced Air
Interior 
Eat-in KitchenOpen Floorplan
Main Level Bedrooms 
3
Window Features 
Double Pane WindowsWindow Coverings
Bathroom Full 
Level - Main
Bedroom 
Dimensions - 15 x 15Description - Laminate
Dining Room 
Dimensions - 11 x 13Level - MainDescription - Wood
Kitchen 
Dimensions - 11 x 13Level - MainDescription - Wood
Living Room 
Dimensions - 11 x 13Level - MainDescription - Wood
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Exterior Features
Construction Details 
Frame
Fencing 
Fenced
Lot Features 
Sprinklers In Front
Patio And Porch 
Deck
Roof 
Composition
View 
City
Waterview 
City
Windows/Doors 
Double Pane WindowsWindow Coverings
Community Features
Financing Terms Available 
CashConventionalVA Loan
Roads 
Paved
School District 
Boulder Valley RE 2
Schools
School District
Boulder Valley RE 2
Elementary School
Sanchez
Middle School
Angevine
High School
Centaurus
Listing courtesy of Rhae Group Realty ryekirov@gmail.com



The content relating to real estate for sale in this Web site comes in part from the Internet Data eXchange ("IDX") program of METROLIST, INC., DBA RECOLORADO real estate listings held by brokers other than Rhae Group Realty are marked with the IDX Logo. This information is being provided for the consumers' personal, non-commercial use and may not be used for any other purpose. All information subject to change and should be independently verified.

Neighborhood & Commute
Source: Walkscore
Disclosure: Community information and market data powered by Constellation Data Labs. Information is deemed reliable but not guaranteed.
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