Mystery Castle #70437 value

Answered from real closed-sale prices · updated August 1, 2026

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The LEGO Hidden Side Mystery Castle #70437 has a used resale value of $150 based on sold comparisons [1]. The second item listed appears to be a duplicate or variant without a specific price. If you're looking to sell or buy, check the live eBay listings shown on this page for current asking prices to compare against the $150 sold value.

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LEGO Hidden SideMystery Castle #70437$150
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LEGO Mystery Castle (70437-1)
Hidden SideLEGO Mystery Castle (70437-1)—
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Live on eBay right now — Mystery Castle #70437

LEGO HIDDEN SIDE: Mystery Castle (70437) - Sealed - See DescriptionLEGO HIDDEN SIDE: Mystery Castle (70437) - Sealed - See Description$131.94Buy ↗Brickstars LED Lighting Kit for LEGO 70437 Hidden Side Mystery CastleBrickstars LED Lighting Kit for LEGO 70437 Hidden Side Mystery Castle$29.99Buy ↗Sealed LEGO Hidden Side Mystery Castle 70437 Discontinued Theme!Sealed LEGO Hidden Side Mystery Castle 70437 Discontinued Theme!$249.95Buy ↗LEGO Hidden Side 70437 - Mystery Castle (New - Sealed)LEGO Hidden Side 70437 - Mystery Castle (New - Sealed)$269Buy ↗LEGO 70437 Mystery Castle (2020) -- STICKER SHEET 2 of 2 (NEW) -- Hidden SideLEGO 70437 Mystery Castle (2020) -- STICKER SHEET 2 of 2 (NEW) -- Hidden Side$14Buy ↗LEGO Hidden Side Mystery Castle 70437 - NEW Sealed - Halloween Haunted LEGO Hidden Side Mystery Castle 70437 - NEW Sealed - Halloween Haunted $249Buy ↗
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Values are informational estimates from real sales data. JunkPal may earn a commission when you buy through eBay links, at no extra cost to you.