Refurbished Building Sets — 297 Deals

297 open-box and refurbished Building Sets deals are live for shoppers in the US right now, with discounts averaging 22% off retail. Prices range from $5 to $200, and every listing shows the seller's condition grade, current price, savings versus list price and stock status — so you can compare before you buy. Top brands on sale include LEGO, COBI, Nifeliz and Playmobil. Inventory syncs from Amazon and other partner stores throughout the day; open-box stock is usually one-of-a-kind, so the best deals sell out fast.

297 live US listings.

USA

Mould King

Mould King 17074 Mobile Construction Crane Toy Set, APP/Remote Control Mobile Crane Building Block with Motors, Collectable Engineering Truck Model Toys for Adult (3218PCS)

$119⁹⁷

COBI Historical Collection Great War Compiègne Wagon (Wagon de l.Armistice) 1918 Building Set, 1927 Pieces

$154⁸³

Reobrix Japanese Himeji Castle Building Block Sets for Adults 55017, 1:127 Japanese Architecture Model Large Landmark Building Set Home Office Decoration Gift for Adults (7105PCS)

Used – Mint

$199⁵⁷

$269.99

-27% Save $70.42

Update: 21 hours 31 mins

Buy at Amazon.com

USA

Mavo brix

Art Roses Building Set with Stand, 26 Roses Flowers 3D Wall Art Framed for Adults, Compatible with Lego Wall Art Sets, Valentines Day Gifts for Her Girlfriend Mom Wife, 1871 PCS Age 18+

Used – Mint

$27⁶¹

$89.99

-70% Save $62.38

Update: 22 hours 54 mins

Buy at Amazon.com

USA

LEGO

Lego Minecraft Minecraft Mini Biom Toy Toy, Birthday Gift, Blocks, Boys, Girls, Kids, 12 Years, 13 Years, 14 Years, Elementary School Students, Micra, Minecraft Goods, Game, 21589

$141⁷⁹

$55¹⁵

Update: 2 hours 34 mins

Buy at Amazon.com

USA

PANTASY

PANTASY Steampunk Windmill Workshop Building Set, Dutch Windmill Architecture with Mechanical Drive with Motorized Rotating Blades,Gear Details,and Openable Wall, Collectible Display Kit for Adults

$73⁹¹

DUANT Insect and Snail Building Block Toys, Anime and Movie Series, Animal Sets Suitable for Adults to Collect and Display(39103)

$16²¹

City Coffee House Building Set for Adults, 1764 PCS Café House Shop Building Block Toy with Ordering Counter Construction Model Kit Mother's Day Home Decor Birthday Gift for Girls Women Age14+

Used – VeryGood

$17¹⁰

$56.80

-70% Save $39.70

Update: 23 hours 10 mins

Buy at Amazon.com

USA

Reobrix

Reobrix F-18 Fighter Jet Building Set for Adults, 1387 PCS Military Aircraft Building Blocks with Display Stand, Hornet Jet Plane Model Kit, Aviation Collectible Gift for Adult Boys 14+

$55⁸⁰

Finger Rock Space Astronaut Building Set for Adults, Semi-Mechanical Astronaut Action Model with Display Stand for Office Home Decorations, Spaceman Toys Gifts for Teens 14+

Used – VeryGood

$16⁹⁸

$49.99

-67% Save $33.01

Update: 1 hour 44 mins

Buy at Amazon.com

USA

Falagil

Falagil Medieval Cathedral Architecture Building Blocks Set, MOC Castle Series Modular Church Model, Collectible Display Creative Ornament for Adults and Teens (6,172PCS)

$138⁰⁰

Reobrix 22019 RC Snow Groomer Building Blocks Set, 1047-Piece Remote Control Snow Plow Truck, Motorized Engineering Construction Vehicle Model, STEM Toy Gifts for Adults & Teens 14+

$62⁴⁹

RUUQRUU 4288 PCS Cherry Blossom Tree Building Set for Adults Teens，Chinese Moon Palace Architecture Model，Micro Japanese Sakura Tree House, Mini Cherry Bonsai Tree Bricks, Creative Gift for Kids 14+

$35⁸³

honchoes WW2 WT Auf E100 Heavy Tank Destroyer Building Sets, Army Military Vehicles Collectible Model for Adults Enthusiasts 2036PCS

Used – VeryGood

$39⁸⁵

$69.98

-44% Save $30.13

Update: 22 hours 59 mins

Buy at Amazon.com

USA

JEKCA

JEKCA Yellow Shiba Inu | Automata Series | Dog Plastic Building Blocks | Age 14+

$5²⁰

COBI Historical Collection: Imperium Romanum Gladiator School Building Set, 583 Pieces

Used – Mint

$45⁸⁷

$74.99

-39% Save $29.12

Update: 16 hours 47 mins

Buy at Amazon.com

USA

BDYDT

BDYDT American Football Micro Building Blocks Set（4752PCS） - Architectural Model Toys Gifts for Kid and Adult，3D Building Block Toys Gift for Sports Enthusiasts

$21²⁸

PIANTION Animal Space Travel Bear Micro Building Blocks Set(6000PCS XQ012) 16.9in High Series,Gifts Suitable for Adults

$17²⁸

Hilighting Upgraded Led Light Kit Compatible with Lego Jabba's Sail Barge Building Set, Lights Decoration Compatible with Lego 75397 (Model Not Included)

$33³¹

Mould King City Aircraft Engine Building Kit, Turbojet Engine Model That Runs with Motor, Mechanical Science Education STEM Toy for Adults (1214 PCS)

$41⁸⁵

ACIKETO 6 in 1 STEM Robot Building Kit, 780 PCS APP & Remote Control Space Robot Toys for Kids Age 8-14+, Engineering Technic Coding Robotic Kit, Educational Science Set Birthday Gift for Boys Girls

$49³⁵

PANTASY Retro Building Set, Vintage Desk Fan Building Set, Motorized Oscillating Mechanical Brick Model, Retro Green Collectible Display Desk Decor for Adults

Used – Mint

$52⁶⁶

$79.26

-34% Save $26.60

Update: 21 hours 54 mins

Buy at Amazon.com

USA

BRIKSMAX

BRIKSMAX Light Kit for Lego-Bonsai Tree - Led Lighting Compatible with Lego Botanical 10281, Valentine's Day Gifts(Model Not Included)

Used – VeryGood

$20⁵⁷

$46.77

-57% Save $26.20

Update: 11 hours 51 mins

Buy at Amazon.com

Building Sets open-box FAQ

How much can I save on open-box Building Sets?

Discounts on Building Sets at OpenBoxFox currently average 22% off retail across 297 live listings, with prices from $5 to $200. Savings are measured against the manufacturer's list price.

Are open-box and refurbished Building Sets safe to buy?

Yes — every listing shows the seller's condition grade (from open-box "Like New" to certified refurbished) before you buy. You purchase directly from the seller, such as Amazon, and that seller's standard return policy applies to your order.

Which Building Sets brands are on sale open-box right now?

The most-listed brands in Building Sets at the moment are LEGO, COBI, Nifeliz, Playmobil and Reobrix. New open-box inventory arrives daily, so brand availability changes often.

How often are Building Sets deals updated?

OpenBoxFox syncs Building Sets inventory from partner stores throughout the day. Sold-out listings are removed automatically and new deals appear shortly after we find them.