Seattle Real Estate Investing in 2026: Finding the Price Where Deals Work

Run a median Seattle house through a rental model and the result is ugly. King County's median sale price was $889,000 in June 2026, down from an April 2025 peak near $1.03 million. Put 25% down at a 7% investment-property rate and your principal and interest run about $4,340 a month. Add taxes and insurance and the all-in cost approaches $5,200. That house rents for roughly $3,300. You would pay $1,500 to $2,000 a month for the privilege of owning it.

So why write about Seattle at all? Because the interesting question in a market like this is never whether the median deal works. It is what price would make a specific deal work, and whether any seller is close to that number. In 2026, some are getting closer.

Prices off peak, rents falling

Seattle city prices read flat to slightly down depending on the index: Redfin shows the median sale price up 2.3% year over year while Zillow's home value index shows 2.5% down. Snohomish County fell 5.8%. Pierce County, home of Tacoma, was the only one of the three core counties to appreciate, up 3.3%. Inventory is climbing across the metro.

Rents fell too. Seattle's median rent sits at $2,083, down 2.7% year over year, and Zumper shows 2-bedrooms around $2,790, down 2%. Multifamily vacancy runs 7.1%. A rental you buy today competes against a discounted lease-up down the street.

The regulatory stack is real

Washington passed a statewide rent cap in May 2025. HB 1217 limits annual increases on existing tenants to the lesser of 7% plus CPI or 10%, with a 12-year exemption for new construction and a 90-day notice requirement. Seattle adds its own layer: the first-in-time rule requires renting to the first qualified applicant, nonpayment evictions are barred November through March for landlords with more than four units, deposits and move-in fees are capped at one month's rent, and every rental, including ADUs, must be registered through RRIO. An unregistered landlord cannot evict.

Tacoma is no escape hatch. Its 2023 Landlord Fairness Code triggers relocation assistance of two to three months' rent when an increase exceeds 5%, requires 180-day notices, and carries its own winter and school-year eviction limits. Price these rules into your assumptions: modest rent growth, longer resolution timelines, compliance costs.

Where the math gets close

• Tacoma: median value around $470,000 with average rents near $1,610. The best price-to-rent in the metro, with the Landlord Fairness Code as the tradeoff.
• Everett: median sale around $580,000 to $635,000, median rent near $1,795.
• Kent: a published dataset puts median long-term-rental cash flow at negative $1,450 a month and cash-on-cash at negative 14.4%. Cited here as a caution, not a recommendation. Even the affordable suburbs fail at retail prices.

The pattern across all of them: Seattle-area deals do not pencil at asking. They pencil at a discount, and the size of that discount is the single most useful number you can bring to a negotiation.

The ADU angle

Seattle allows two accessory dwelling units per lot, one attached and one detached, with no owner-occupancy requirement. As of June 2025, Washington law lets a detached ADU be condominiumized and sold separately from the main house. Buy a house on a qualifying lot, build a DADU, sell one and keep the other: an exit strategy that did not exist two years ago. Any ADU you rent still needs RRIO registration.

The bull case, stated honestly

Construction is stopping. Q1 2026 deliveries fell 59% year over year, and units under construction are down 11%. If demand holds, 2027 and 2028 get tight and rents recover. Amazon's Seattle headcount is down to about 49,000 from a 60,000 peak, and the University of Washington is now the city's largest employer, so the demand side carries real uncertainty. Buying negative carry today is a bet on that supply cliff. Make the bet with your eyes open or wait for a price that works now.

How to underwrite Seattle in Realastat

Screenshot the listing and let the extraction fill the inputs. The deal will fail your targets at asking. That is expected. Then use the max offer solve: Realastat re-runs the full model against each of your targets to find the highest price that still clears them. On a Seattle house, the gap between asking and that solved ceiling is often six figures. Now you know three things: what the deal is worth to you, how motivated a seller would need to be, and whether this negotiation is worth your time. Walk the offer ladder in scenarios, cap your rent-growth assumption to respect HB 1217, and keep your buy box pointed at Tacoma, Everett, and Pierce County where the gap is smallest.