LEGO → Modular Buildings
Modular Buildings Assembly Square (10255-1)

Modular Buildings Assembly Square (10255-1)

Variation: New Sealed
LEGOModular Buildings
Condition

New Sealed is the primary LEGO collector condition. Used Complete tracks opened sets with all pieces and is secondary when available.

Market read

High confidence · Recent completed sales
CollectAIO Value
$384.94
81 completed sales52 active listingscompleted sales $384.94lowest eBay listing $355

Based on recent completed sales. Current asking prices are shown separately because they may not clear.

Best next action: If this is your exact variation, add it to your collection. If you are still waiting on price movement, create a watch.

Details
Set Number: 10255-1
Year: 2017
Pieces: 4002
Theme Path: Modular Buildings

Price History

CollectAIO Estimate

Today’s CollectAIO Value: $384.94 Based on recent completed sales. Current asking prices are shown separately because they may not clear.

Estimated from archived TCGPlayer market/listing signals and matched eBay sold comps where available. Raw source lines are available in Compare sources.

Price history stores one point per day. Same-day updates replace today's snapshot.

Market Evidence

The detailed signals behind the top market read. Payout, retail basis, refresh, and marketplace caveats stay here so the first screen stays focused.

Recent eBay sold value
SOLD
$384.94
Details
Est. seller payout ~$333.54 after eBay fees
Recent median of 18 matched eBay sold comps from the last 30 days • Snapshot May 18, 2026
Longer-term reference: 390-day median $390 from 81 matched comps.
eBay sold snapshot updated May 18, 2026
Condition-varied eBay evidence: 2 of 25 loaded sold comps include condition language.
Lowest matched eBay listing
ACTIVE
$355.00
Details
Est. seller payout ~$307.56 after eBay fees
Lowest raw eBay Buy-It-Now (price + shipping, condition can vary) • Snapshot May 18, 2026
52 matched active listings used in this floor; 26 not used after quality filters.
eBay active snapshot updated May 18, 2026
eBay evidence is stale
Showing saved prices. Open refresh status to request fresh comps and active listings.

Sold Comp Trend

Weekly median sold comps are up +$27.46 (7.7%) from week of Apr 6 to week of May 11.

View trend

Weekly median of matched eBay sold comps. Used as supporting evidence for CollectAIO Estimate where available.

First Week
$357.54
Week of Apr 6 • 3 comps
Latest Week
$385
Week of May 11 • 4 comps
Move
+$27.46
25 included sold comps across 6 weeks
81 matched eBay sold comps used in value calculationTable sample: 25 loaded rows (latest sold rows).
Collector previewLoaded row sorting is free during launch.
Sorted by sold date (descending)

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