LEGO LEGO Ideas and CUUSOO 21318
Tree House
Estimated Market Value · Retail $249.99 · Below Retail
New-condition ASK cohort — not sold prices
Strong market signal
Based on 33 credible active listings · New-condition ASK cohort
eBay active listings · eBay US
Updated 5 hr ago
Estimated Market Value uses the new-condition cohort; Median Ask uses all accepted listings.
Official / Retail
View at LEGO.comSecondary market
View market listings on eBayCurrent Market — ASK
Estimated Market Value
New-condition ASK cohort — not sold prices
Median Ask
$210.00
All credible active ASK listings
Lowest Credible Ask
$90.00
Active Listings
47
90D Move
—
Market Score
Attractive
Based on 4 market factors
- Retirement outlook80
- Market liquidity100
- Value vs retail62
- Price consistency37
The Market Score is a SetCensus analytical metric derived from current market observations. It is not investment advice.
Market by condition
New is not factory sealed. Used is not a complete-set grade.
ASK
New condition
Active eBay listings reported as New. New does not prove factory sealing.
$229.99
Median Ask · Lowest Credible Ask $169.99 · 33 listings
Strong market signal
ASK
Used condition
Active eBay listings reported as Used. Used does not prove completeness.
$135.00
Median Ask · Lowest Credible Ask $90.00 · 14 listings
Strong market signal
Stricter evidence
Likely Sealed
Listings marked New with additional listing evidence consistent with sealed condition.
$234.98
Median Ask · Lowest Credible Ask $170.00 · 24 listings
Strong market signal
Stricter evidence
Likely Complete Used
Used listings with additional listing evidence of completeness. Unknown completeness stays in Used condition.
$120.00
Median Ask · Lowest Credible Ask $119.99 · 3 listings
Limited market signal
Historical Market — SOLD
Historical SOLD Trend
Source: eBay Product Research · Query-matched SOLD
eBay US · Aug 16, 2023 – Aug 16, 2026 · Confidence: Trusted
Query-matched SOLD research
Query-matched sold listings. Not a complete-set appraisal.
Historical SOLD Avg
$169.21
Historical SOLD Volume
2,847
Historical SOLD Revenue
$481.7K
Sellers
1,818