Go Far®What moving really costs
The sticker price of the next house is only the start. Selling and buying stacks up agent commissions, Washington’s real estate excise tax on the sale, closing costs on both ends, moving itself, and the small renovation wave every "new" house demands in year one. On a typical Seattle-area move-up, transaction costs alone commonly consume a six-figure slice of equity — money that buys no additional house.
There is also the quieter cost: if you hold a low-rate mortgage from a few years back, trading it for today’s rate repriced your entire balance, not just the additional space. For many households that single line settles the debate.
What an addition really costs
An addition prices by scope: a main-floor bedroom or family room, a bumped-out kitchen, or a full second story are very different projects. You will live through construction, and you will spend real money — but every dollar goes into space you designed, in the neighborhood, school district, and commute you already chose. Value-wise, well-built additional square footage in a strong market like ours holds its worth unusually well.
When each side wins
- Addition wins when you love the location, the lot has room (or the roof can carry a second story), and what you lack is space — bedrooms, a second bath, a real family room.
- Moving wins when the problems are the lot or location themselves — a commute that will not shrink, a yard that cannot grow, zoning that will not allow what you need.
- Wildcard: if the goal is housing family or earning rent, compare a move against an ADU or backyard cottage before deciding either.
Run your numbers on a real project
The math only works with real figures on the remodel side. Go Far Construction builds home additions across Lynnwood and Snohomish County and gives free, itemized estimates — get the actual number for the addition you are imagining, then decide with both sides of the ledger filled in.