Prepared by https://www.commercialmls.com
428 Westlake Building
428 Westlake Ave N Seattle WA 98109-5220
Listing #: 713069 | Status: Available | Last Modified: 6/3/2026
| Showing Instructions | |
|---|---|
| Call Listing Agent | No |
| Use Discretion | No |
| Price Information | |
|---|---|
| Min Rent per SF | $ 0.00 |
| Max Rent per SF | $ 0.00 |
| Office Rent Min | $ 0.00 |
| Office Rent Max | $ 0.00 |
| Shell Rent Min | $ 0.00 |
| Shell Rent Max | $ 0.00 |
| Total Monthly Rent | $ 0.00 |
| Lease Type | Full Service |
| Listing Status | Available |
| Days on Market | 23 |
| Asset Class | Office |
| Space Information | |
|---|---|
| Available SF | 16,669 SF |
| Divisible To | 16,669 SF |
| Floor Number | 5 |
| Date Available | 04/01/2027 |
| Building Information | |
|---|---|
| Building Status | Existing |
| # of Buildings | 1 |
| # of Floors | 6 |
| Total Building SF | 88,514 SF |
| Net Rentable Area | 88,514 SF |
| Total Office SF | 80,978 SF |
| Largest Contiguous SF | 0 SF |
| Lot SF | 19,602 SF |
| Acres | 0.45 |
| Year Built | 2004 |
| Year Renovated | 2005 |
| Sprinklers | Yes |
| Construction Type | Concrete, Steel |
| Property Type | |
|---|---|
| Property Type | Office |
| Office Type | Other |
| Investment | Yes |
| Building Class | A |
| Location | |
|---|---|
| County | King |
| Vicinity | Westlake |
| Cross Street | Republican St |
| Market Area | Lake Union |
| Tax ID # | 1983200245 |
| Zoning | SM-SLU-175/85-280 |
| Parking Information | |
|---|---|
| #Covered Spaces | 0 |
| # Uncovered Spaces | 0 |
| Total Parking Spots | 0 |
| Parking Ratio | 1.6/1000 |
428 Westlake Ave N
A 6-story office building on the corner of Westlake Avenue & Republican Street. 16,000 SF typical floor plate.
Multi-Tenant
428 Westlake Building
428 Westlake Ave N Seattle WA 98109-5220
Listing #: 713069 | Status: Available | Listing Date: 5/19/2026 | Last Modified: 6/3/2026 | Date Available: 3/31/2027 | Email Listing
