This property has a documented history as a industrial and manufacturing facility going back to 1905. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup.
The Gunn Building site has an industrial operating history dating to at least 1905, when the original two-story wood-frame structure was built and put to use as a commercial laundry — a use that continued until around 1940, after which the property housed a smoking pipe manufacturer. A boiler fuel underground storage tank was in place by 1917 and remained until November 1996, when it was decommissioned and closed-in-place. Gasoline-range hydrocarbon contamination has been confirmed in soil and groundwater; institutional controls (contaminants under pavement) are in place to limit exposure, and an independent cleanup at the adjacent Lake Union Steam Plant in the early 1990s achieved only partial soil removal, leaving shared contamination in that area unresolved. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.
Why Historical Insurance Policies May Be Accessible
Pre-1986 Commercial General Liability (CGL) policies were occurrence-based and did not contain an effective pollution exclusion in Washington. If contamination occurred while those policies were active, those historical insurance carriers may still have a legal obligation to fund the cleanup costs, even if the business closed or the property changed hands.
Industrial operations at this property began more than eighty years before 1986, with a storage tank on-site since at least 1917 and successive manufacturing uses through mid-century. Occurrence-based CGL policies issued to the laundry, the pipe manufacturer, or other operators across that long pre-1986 window carried no effective pollution exclusion under Washington law and remain potentially enforceable. The gasoline-range hydrocarbons confirmed in soil and groundwater here — attributable to past on-site activities and an incompletely remediated adjacent source — represent exactly the slow, historically rooted contamination those policies were designed to address, and the cleanup costs the property owner faces going forward could plausibly be funded by historical carriers whose policies were in force when contamination first occurred.
Restorical's role is to locate viable historical policies, determine whether a successful coverage claim is possible, and assist our clients and their legal counsel to obtain insurance coverage. Restorical then manages the claim, including accounting, to ensure the cleanup is funded in a timely manner.
What We Look For
- Historical insurance policies (pre-1986)
- Policy numbers, carrier names, and coverage periods
- Connection between contamination timing and policy period
- Evidence linking cleanup obligation to insured activity
What We Deliver
- Historical Coverage Chart
- Trigger Analysis & Property/Policy Nexus
- Coverage strategy with recommendations
- Insurance funding for your remediation
- Claims Management & Forensic Accounting
The Restorical Proven Process
Ready to learn more?
Contact UsThis analysis is preliminary and based on publicly available records. Restorical Research is not a law firm and does not provide legal advice.


