How Far Away Can Comparable Sales Be for a Property Tax Appeal?
TL;DR
For suburban properties, keep comparable sales within 1 mile and the same school district. Urban properties can use tighter radii (0.5 miles or same neighborhood). Rural properties may need to extend to 5-10 miles. Review boards prefer closer comps, but the most important factor is similarity, not distance. A highly comparable sale 2 miles away is better than a poor match next door. Always explain why you chose each comp.
The General Rule
Most review boards prefer comparable sales within 1 mile of your property. This is not a hard rule, but a strong guideline. The logic: homes within a mile typically share the same neighborhood characteristics, school district, and local market conditions.
| Property Type | Ideal Radius | Acceptable Radius | Maximum |
|---|---|---|---|
| Urban condo/townhome | Same building/complex | 0.5 miles | 1 mile |
| Suburban home | Same subdivision | 1 mile | 2 miles |
| Rural home | Within 3 miles | 5 miles | 10 miles |
| Unique/specialty | Varies | Varies | Regional |
When You Need to Go Wider
Sometimes there are not enough sales nearby. This happens with:
- Rural properties with sparse development
- Unique properties (historic, waterfront, large acreage)
- Slow markets with few recent transactions
- Neighborhoods with very low turnover
When using wider-radius comps, explain to the board why you went beyond the typical range and what makes those comps comparable despite the distance.
Distance vs. Similarity
Similarity always trumps proximity. A 1,800 sq ft ranch home 1.5 miles away is a better comp than a 3,200 sq ft colonial across the street. The review board wants to see comps that match your home's characteristics, not just comps that are geographically close.
Key similarity factors (in order of importance):
- Property type (detached vs. attached, style)
- Size (square footage within 20%)
- Age (year built within 15 years)
- Condition
- Location (neighborhood, school district)
- Lot size
- Features (garage, basement, pool)
School District Boundaries Matter
Two homes 0.5 miles apart but in different school districts can have significantly different values. When selecting comps, stay within the same school district whenever possible. If you cross school district lines, the board may discount those comps.
For more on selecting the best comps, see our comparable sales guide.
Frequently Asked Questions
How Far Away Can Comparable Sales Be for a Property Tax Appeal??
For suburban properties, keep comparable sales within 1 mile and the same school district. Urban properties can use tighter radii (0.5 miles or same neighborhood). Rural properties may need to extend to 5-10 miles.
What should I know about the general rule?
Most review boards prefer comparable sales within 1 mile of your property. This is not a hard rule, but a strong guideline. The logic: homes within a mile typically share the same neighborhood characteristics, school district, and local market conditions.
When You Need to Go Wider?
Sometimes there are not enough sales nearby. This happens with:
How do they compare in terms of distance vs. similarity?
Similarity always trumps proximity. A 1,800 sq ft ranch home 1.5 miles away is a better comp than a 3,200 sq ft colonial across the street. The review board wants to see comps that match your home's characteristics, not just comps that are geographically close.
What should I know about school district boundaries matter?
Two homes 0.5 miles apart but in different school districts can have significantly different values. When selecting comps, stay within the same school district whenever possible. If you cross school district lines, the board may discount those comps.
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