Alaska replacement cost calculator

Whether the dwelling coverage on your policy would actually rebuild your house — and what a shortfall costs you at claim time. Planning estimate only, not an appraisal.

Alaska guide

Making sure you have enough coverage

From Home Insurance in Alaska: What It Costs and What Actually Covers You

The most consequential number on your policy is your Coverage A limit, and the most common way it goes wrong is setting it to your home's market value or your mortgage balance.

Neither is right. Dwelling coverage should equal the cost to rebuild your home from the foundation up at today's construction prices. Market value includes land, which does not burn. Your mortgage balance is a financing number with no relationship to construction cost.

Alaska has an unusual version of this problem, and it runs in the dangerous direction. Alaska's median home price is about $420,506, while rebuild cost on a typical home runs above that — because Alaska construction is expensive and Alaska land, outside a few markets, is not. In most of the country, insuring to market value overstates what you need. In Alaska it frequently understates it.

Working a real Alaska example

Rebuilding in Alaska runs roughly $265 per square foot — the midpoint of a published $215 to $315 band covering materials, labor, and general contractor overhead and profit, excluding land.

On an 1,800 square foot home:

  • 1,800 x $265 = $477,000 to rebuild

The band:

  • At $215/sq ft: $387,000
  • At $315/sq ft: $594,000

That is a $207,000 spread on the same house. Alaska does at least carry its own distinct cost band rather than sharing a regional band with neighbors — but no Alaska building department or insurance regulator publishes a competing rebuild-cost survey to check it against, so the $215 to $315 spread is the honest width of this number.

And in Alaska, more than almost anywhere, the statewide figure is the wrong tool for an individual house. Rebuilding in Anchorage and rebuilding in a village off the road system are not the same exercise. If materials and labor arrive by barge or plane, your real replacement cost can sit far above the top of that band. Get an actual replacement-cost estimate for your specific home, and make sure whoever produces it knows how your site is accessed.

Notice the headline result: a 1,800 square foot Alaska home costs about $477,000 to rebuild at the midpoint, against a $420,506 statewide median sale price. Set Coverage A from what you paid and you could start out $56,000 short.

The 80% coinsurance rule, and what a shortfall does to a partial claim

Most homeowners policies contain a coinsurance provision requiring you to insure the dwelling to at least 80% of its full replacement cost. Fall below that and the insurer does not merely cap your payout at your limit — it reduces every partial claim proportionally.

Work it on the example. Full replacement cost $477,000, so the 80% threshold is $381,600. Suppose you carry the $300,000 reference limit instead, and a fire does $100,000 of damage. Your limit is three times the loss, so it feels safe. It is not:

  • $300,000 carried / $381,600 required = 0.786
  • 0.786 x $100,000 = $78,616
  • Then subtract your $1,000 deductible
  • Net payment: about $77,616 on a $100,000 loss

You are more than $22,000 short on a claim well inside your policy limit, purely because Coverage A was set too low. None of that is visible until you file.

Two endorsements worth asking about by name

  • Extended replacement cost — pays a stated percentage above your Coverage A limit (commonly 25% to 50%) when rebuilding costs more than expected. In a state where materials ship long distances and contractor capacity is thin, this is high-value.
  • Ordinance or law coverage — covers the extra cost of rebuilding to current code, including seismic and energy-code requirements that may not have existed when your house was built.

Read the full Alaska guide →14 min read · Updated 2026-08-28