About 504 E Simpson Street A & B
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.
Features of 504 E Simpson Street A & B
| MLS® # | IR1066093 |
|---|---|
| Price | $899,000 |
| Bedrooms | 4 |
| Bathrooms | 3.00 |
| Full Baths | 3 |
| Square Footage | 1,988 |
| Acres | 0.16 |
| Year Built | 1900 |
| Type | Residential |
| Sub-Type | Single Family Residence |
| Style | Contemporary |
| Status | Active |
Community Information
| Address | 504 E Simpson Street A & B |
|---|---|
| Subdivision | Old Town |
| City | Lafayette |
| County | Boulder |
| State | CO |
| Zip Code | 80026 |
Amenities
| Utilities | Cable Available, Electricity Available, Internet Access (Wired), Natural Gas Available |
|---|---|
| Parking Spaces | 2 |
| # of Garages | 2 |
| View | City |
| Is Waterfront | No |
| Has Pool | No |
Interior
| Interior Features | Eat-in Kitchen, Open Floorplan |
|---|---|
| Appliances | Dishwasher, Disposal, Dryer, Oven, Refrigerator, Washer |
| Heating | Forced Air |
| Cooling | Air Conditioning-Room, Ceiling Fan(s) |
| Fireplace | No |
| Stories | One |
Exterior
| Lot Description | Sprinklers In Front |
|---|---|
| Windows | Double Pane Windows, Window Coverings |
| Roof | Composition |
School Information
| District | Boulder Valley RE 2 |
|---|---|
| Elementary | Sanchez |
| Middle | Angevine |
| High | Centaurus |
Additional Information
| Date Listed | August 8th, 2026 |
|---|---|
| Zoning | RES |
| Foreclosure | No |
| Short Sale | No |
| RE / Bank Owned | No |
Listing Details
| Office | Rhae Group Realty |
|---|---|
| Contact Info | 7203908705 |