Property Tax Appeal
Get Your Complete Appeal Packet — $39
One-time payment. You keep 100% of your savings.
- Cover letter — addressed to the Board of Equalization
- Valuation evidence — comparable sales with adjustment grid
- Pre-filled petition form — ready to review and submit
- Hearing talking points — what to say, how to answer Board questions
- Filing checklist — step-by-step instructions
After payment you'll customize your appeal documents.
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Property Details
Current Assessment
| Value | |
|---|---|
| Land | — |
| Improvements | — |
| Total | — |
Does this look right?
The assessor's records sometimes have errors — wrong square footage, bedroom count, or year built. If any data above is incorrect, that alone can change your assessment.
If you spot errors, you may also qualify for a Manifest Error Correction — refunds for up to 6 years of overpayment. View full assessor record →
Comparable Sales
Pick homes most similar to yours that sold below your assessed value. Select at least 3 — more comps strengthen your case.
| Address | Sale Price | Sq Ft | Yr Built | $/Sq Ft | Score |
|---|
Property Deficiencies
Check any issues that negatively affect your property's value. These strengthen your appeal.
Optional — comparable sales are the primary evidence. Deficiencies add supporting context.
Property sits on a steep grade making access, parking, or yard use difficult. Reduces buyer pool and increases maintenance costs.
Proof: photos of slope/stairs, site survey showing grade, retaining wall repair estimates. Check slope on KC iMap →
Examples:
Home requires climbing stairs to enter — no ADA-accessible or ground-level entry. Limits accessibility and reduces buyer appeal.
Proof: photos showing stair count and entry configuration.
Examples:
Property is near I-5, SR-99, Aurora Ave, or other high-traffic roads. Constant noise reduces livability and resale value.
Proof: Google Maps screenshot showing distance to road, noise measurement app reading. WSDOT traffic data →
Examples:
Property is near active railroad tracks. Train horns, vibration, and noise at all hours significantly impact livability.
Proof: map showing distance to tracks, photos, rail line name. WSDOT rail map →
Examples:
Property is under a regular flight path for SeaTac, Boeing Field, or other airports. Overhead noise impacts daily life and property value.
Proof: noise contour maps, flight path screenshots. SeaTac noise boundary maps → Live flight tracker → Port of Seattle noise study →
Examples:
High-voltage transmission lines run over or adjacent to the property, or a utility easement restricts what you can build. Both reduce desirability and value.
Proof: photos of power lines/towers from property, title report showing easement, plat map. KC Parcel Viewer (easements) →
Examples:
Property is in a designated critical area (wetland buffer, landslide zone, flood plain, or steep slope hazard area). Restricts development and increases insurance costs.
Proof: critical area overlay printout, FEMA flood zone determination, environmental studies. KC iMap (critical areas layer) → FEMA flood map lookup →
Examples:
Property needs significant repairs — aging roof, old furnace, plumbing issues, foundation problems, etc. The assessor may not know about these.
Proof: contractor estimates/bids, photos of damage, inspection reports. This is your strongest evidence — dollar amounts carry the most weight with the BOE.
Typical Seattle-area repair costs (cite in your appeal even without a formal bid):
| Roof replacement | $12,000 – $25,000 |
| Foundation repair | $5,000 – $15,000 |
| Furnace / HVAC replacement | $4,000 – $8,000 |
| Sewer line replacement | $5,000 – $12,000 |
| Exterior paint (full house) | $4,000 – $8,000 |
| Window replacement (10+ windows) | $8,000 – $20,000 |
| Electrical panel upgrade | $2,000 – $4,000 |
| Plumbing re-pipe | $4,000 – $10,000 |
This amount will be subtracted from your suggested property value. Use contractor bids if you have them, or estimate from the table above.
Examples:
No garage, no driveway, or street parking only. In competitive Seattle neighborhoods this meaningfully reduces value vs. comparable homes with parking.
Proof: photos of parking situation, note if your selected comps have garages/driveways while yours doesn't.
Examples:
Townhouse or row house with shared walls with neighbors. Noise transfer and lack of privacy reduce value compared to detached homes.
Proof: building plans or photos showing shared wall configuration.
Examples:
View is blocked by neighboring buildings, trees, or topography — relevant if comparable sales have views and yours doesn't. View premiums in King County can be 10-20%.
Proof: photos from windows/deck showing the obstruction, especially if nearby comps sold with view premiums.
Examples:
Lot is significantly smaller than neighborhood average, has an unusual shape limiting use, or lacks direct street frontage (flag lot).
Proof: plat map or aerial showing lot shape vs. neighbors, lot size comparison with comps. KC Parcel Viewer →
Examples:
Important: The BOE expects evidence for each deficiency you claim. Checking boxes without documentation (photos, maps, repair estimates) weakens your appeal. Use the links above to gather proof before your hearing.
Estimated Value Impact
Based on your selected deficiencies, we'll adjust your suggested opinion of value:
These are conservative estimates. The BOE may apply different adjustments based on your evidence.
Your Information
Use the name on your property deed if possible.
Your Opinion of Value
What do you believe the property is worth?
Appeal Packet Ready!
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All editable Word docs — review and customize before filing.