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Best Buy customers often prefer the following products when searching for kids building kits.

Kids love to build. Out of the box, it's a great way to develop creativity and problem-solving skills. With the right kind of building kit, it can also be a safe, educational, and fun activity for children. Browse the top-ranked list of kids building kits below along with associated reviews and opinions.

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  1. LEGO - Ninjago Lloyd's Ninja Mech 71757 - Front_Zoom

    Model: 6378901
    SKU: 6485582
    Top comment

    "LEGO NINJAGO, it's a really good product it comes with 57 pieces it's a building toy,the Lloyd ninja mech has great colors and it's great for kids 4 ages and up, it's great for motor skills and the imaginations of the kid it's fantastic...Easy to assemble for a kid. Surprisingly popular for my kids who fight over using this one."

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    Product Description

    Lloyd’s Ninja Mech (71757) is the ideal playset to help kids aged 4 and up develop their building skills. It features a posable mech toy with a cockpit to carry the ninjas into battle, 2 large swords and 2 minifigures. Beginner LEGO set inspires young kids to build This ninja playset has been specially designed to give kids aged 4 and up a brilliant build-and-play experience. Inside the box, each bag of bricks has a model and a character to build so kids can quickly get the action underway.There is also a Starter Brick to provide a partly constructed base to get kids building. Digital fun for all the family The playset comes with interactive digital building instructions to make the experience even more fun for little builders and their families. Available in the free LEGO Building Instructions app for use on smartphones and tablets, the zoom and rotate tools let young kids visualize the model as they construct it. They can save their progress at any point on the app.
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    Top comment

    "LEGO NINJAGO, it's a really good product it comes with 57 pieces it's a building toy,the Lloyd ninja mech has great colors and it's great for kids 4 ages and up, it's great for motor skills and the imaginations of the kid it's fantastic...Easy to assemble for a kid. Surprisingly popular for my kids who fight over using this one."

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    Product Description

    Lloyd’s Ninja Mech (71757) is the ideal playset to help kids aged 4 and up develop their building skills. It features a posable mech toy with a cockpit to carry the ninjas into battle, 2 large swords and 2 minifigures. Beginner LEGO set inspires young kids to build This ninja playset has been specially designed to give kids aged 4 and up a brilliant build-and-play experience. Inside the box, each bag of bricks has a model and a character to build so kids can quickly get the action underway.There is also a Starter Brick to provide a partly constructed base to get kids building. Digital fun for all the family The playset comes with interactive digital building instructions to make the experience even more fun for little builders and their families. Available in the free LEGO Building Instructions app for use on smartphones and tablets, the zoom and rotate tools let young kids visualize the model as they construct it. They can save their progress at any point on the app.
    See all Building Sets & Blocks
    See all Building Sets & Blocks
  2. LEGO - Speed Champions Aston Martin Valkyrie AMR Pro and Aston Martin Vantage GT3 - Front_Zoom
    Top comment

    "I had so much fun building though! It took me about 45-1hr to build with breaks. ...The colors of both are great and my kids like them though im waiting till summer before they get to build them as they will have more time doing them....i usually dont get legos as they are a pain but i think my kids will love building this with their dad"

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    Product Description

    Here’s a winning combination for fans of superfast cars – the LEGO Speed Champions Aston Martin Valkyrie AMR Pro and Aston Martin Vantage GT3 (76910) toy building set. Now available to collect, construct and explore, these accurately detailed LEGO models deliver a rewarding building experience, are great for display and awesome to race! Digital building instructions This Speed Champions set comes with printed and digital building instructions. Available in the free LEGO Building Instructions app for smartphones and tablets, the interactive digital guide comes with amazing zoom and rotate tools that allow you to visualize a model from all angles as you build. Celebrating innovative design LEGO Speed Champions sets deliver buildable versions of the world’s most popular and innovative vehicles. The fun-to-build, collectible models are great for display and imaginative racetrack drama, making them a great gift choice for kids and automobile enthusiasts of all ages.
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    Top comment

    "I had so much fun building though! It took me about 45-1hr to build with breaks. ...The colors of both are great and my kids like them though im waiting till summer before they get to build them as they will have more time doing them....i usually dont get legos as they are a pain but i think my kids will love building this with their dad"

    See all customer reviews

    Product Description

    Here’s a winning combination for fans of superfast cars – the LEGO Speed Champions Aston Martin Valkyrie AMR Pro and Aston Martin Vantage GT3 (76910) toy building set. Now available to collect, construct and explore, these accurately detailed LEGO models deliver a rewarding building experience, are great for display and awesome to race! Digital building instructions This Speed Champions set comes with printed and digital building instructions. Available in the free LEGO Building Instructions app for smartphones and tablets, the interactive digital guide comes with amazing zoom and rotate tools that allow you to visualize a model from all angles as you build. Celebrating innovative design LEGO Speed Champions sets deliver buildable versions of the world’s most popular and innovative vehicles. The fun-to-build, collectible models are great for display and imaginative racetrack drama, making them a great gift choice for kids and automobile enthusiasts of all ages.
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    See all Building Sets & Blocks
  3. LEGO - Minecraft The Bakery 21184 - Front_Zoom

    Model: 6379572
    SKU: 6503984
    Top comment

    "Kids loved it...Great gift, the child loved this Christmas gift!!!!...Bought for a child for a Christmas tree gift giving. Really great!"

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    Product Description

    Filled with Minecraft characters, fun accessories and cool features, LEGO Minecraft The Bakery (21184) is an entertaining gift for kids aged 8 and up. Reconfigurable fun for creative kids This activity-packed Minecraft playset is bursting with play possibilities. The cast of Minecraft characters includes a baker, snow villager, goat and a Creeper. The busy bakery features a furnished room where kids can play out the home-life stories. Before the bread and cookies can be baked, kids must gather the ingredients. They get wheat by helping a farmer grow it. They get milk by milking the goat. Finally, they join the baker to get creative in the kitchen. For added excitement, a dreaded Creeper is lurking nearby and it is determined to destroy the chest with a valuable egg inside. Kids must defend the bakery using the classic Minecraft weapon, a diamond sword. When the battle is over, the modular set can be easily rearranged to inspire endless new adventures.
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    Top comment

    "Kids loved it...Great gift, the child loved this Christmas gift!!!!...Bought for a child for a Christmas tree gift giving. Really great!"

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    Product Description

    Filled with Minecraft characters, fun accessories and cool features, LEGO Minecraft The Bakery (21184) is an entertaining gift for kids aged 8 and up. Reconfigurable fun for creative kids This activity-packed Minecraft playset is bursting with play possibilities. The cast of Minecraft characters includes a baker, snow villager, goat and a Creeper. The busy bakery features a furnished room where kids can play out the home-life stories. Before the bread and cookies can be baked, kids must gather the ingredients. They get wheat by helping a farmer grow it. They get milk by milking the goat. Finally, they join the baker to get creative in the kitchen. For added excitement, a dreaded Creeper is lurking nearby and it is determined to destroy the chest with a valuable egg inside. Kids must defend the bakery using the classic Minecraft weapon, a diamond sword. When the battle is over, the modular set can be easily rearranged to inspire endless new adventures.
    See all Building Sets & Blocks
    See all Building Sets & Blocks
  4. LEGO - Speed Champions Lamborghini Countach 76908 - Front_Zoom
    Top comment

    "I really appreciate the easy to follow direction so my child can build it without much help. Most of the stickers we’re already on the bricks however some stickers needed to be placed....Anyway, this set...it's awesome. Everything the kid in me would have loved to have back then. The excitement and pleasure of building this isn't diminished though. "

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    Product Description

    Kids and car enthusiasts now have the chance to explore one of the world’s most iconic sports cars with the LEGO Speed Champions Lamborghini Countach (76908) building set. Stunning from every angle, this detailed replica model delivers an engaging building experience, is perfect for display and awesome for epic racing action. Digital building instructions This collectible toy car includes printed and digital building instructions. Available in the free LEGO Building Instructions app for smartphones and tablets, the interactive digital guide comes with amazing zoom and rotate tools that allow you to visualize this model from all angles as you build. Celebrating iconic engineering and design LEGO Speed Champions building sets deliver buildable versions of the world’s leading and best-known vehicles. Designed for kids and automobile fans of all ages, the authentically detailed models are also great for thrilling race action against other toy vehicles from the Speed Champions range.
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    Top comment

    "I really appreciate the easy to follow direction so my child can build it without much help. Most of the stickers we’re already on the bricks however some stickers needed to be placed....Anyway, this set...it's awesome. Everything the kid in me would have loved to have back then. The excitement and pleasure of building this isn't diminished though. "

    See all customer reviews

    Product Description

    Kids and car enthusiasts now have the chance to explore one of the world’s most iconic sports cars with the LEGO Speed Champions Lamborghini Countach (76908) building set. Stunning from every angle, this detailed replica model delivers an engaging building experience, is perfect for display and awesome for epic racing action. Digital building instructions This collectible toy car includes printed and digital building instructions. Available in the free LEGO Building Instructions app for smartphones and tablets, the interactive digital guide comes with amazing zoom and rotate tools that allow you to visualize this model from all angles as you build. Celebrating iconic engineering and design LEGO Speed Champions building sets deliver buildable versions of the world’s leading and best-known vehicles. Designed for kids and automobile fans of all ages, the authentically detailed models are also great for thrilling race action against other toy vehicles from the Speed Champions range.
    See all Building Sets & Blocks
    See all Building Sets & Blocks
  5. LEGO - City Fire Station 60320 - Front_Zoom

    Model: 6379618
    SKU: 6485587
    Top comment

    "[This review was collected as part of a promotion.] It kept the kids busy and they were really into building the sets and making everything. ...Lego is Lego and they are the best there is for building blocks. Good investment."

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    Product Description

    The 3-level LEGO City Fire Station (60320) houses a control room, firefighters’ quarters, reception and garage, plus a helicopter that shoots LEGO water splat elements and a fire truck that shoots water dart elements. Just add the firefighter minifigures, including 2 LEGO City TV characters and cat and dog figures, to fire up the fun! Kids can also expand this set via the included LEGO Road Plate. Building fun designed for kids aged 6 and up This set includes a printed building guide and interactive digital building instructions. Available in the free LEGO Building Instructions app for smartphones and tablets, the intuitive digital guide comes with amazing zoom and rotate tools that allow kids to visualize each model from all angles as they build. The empowering world of LEGO City LEGO City playsets stimulate imaginative role play with feature-rich buildings, cool vehicles and inspiring characters that put kids at the heart of the action, where they get to decide the stories.
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    Top comment

    "[This review was collected as part of a promotion.] It kept the kids busy and they were really into building the sets and making everything. ...Lego is Lego and they are the best there is for building blocks. Good investment."

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    Product Description

    The 3-level LEGO City Fire Station (60320) houses a control room, firefighters’ quarters, reception and garage, plus a helicopter that shoots LEGO water splat elements and a fire truck that shoots water dart elements. Just add the firefighter minifigures, including 2 LEGO City TV characters and cat and dog figures, to fire up the fun! Kids can also expand this set via the included LEGO Road Plate. Building fun designed for kids aged 6 and up This set includes a printed building guide and interactive digital building instructions. Available in the free LEGO Building Instructions app for smartphones and tablets, the intuitive digital guide comes with amazing zoom and rotate tools that allow kids to visualize each model from all angles as they build. The empowering world of LEGO City LEGO City playsets stimulate imaginative role play with feature-rich buildings, cool vehicles and inspiring characters that put kids at the heart of the action, where they get to decide the stories.
    See all Building Sets & Blocks
    See all Building Sets & Blocks
  6. LEGO - Harry Potter Hogwarts Astronomy Tower 75969 - Front_Zoom
    Top comment

    "I recommend this set to anyone with kids that likes harry potter or just legos in general. ...Kid loves it. Can’t believe how expensive these sets are. "

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    Product Description

    LEGO® Harry Potter™ Hogwarts™ Astronomy Tower (75969) is filled to the turrets with iconic locations, cool characters and authentic detail from the Harry Potter movies. Toy brick castle bursting with Harry Potter movie action: This LEGO Hogwarts playset gives kids the freedom to explore the many fascinating rooms of a magical castle with Harry Potter, Hermione Granger™, Horace Slughorn, Luna Lovegood™, Neville Longbottom™, Ron Weasley™, Lavender Brown, Draco Malfoy™ and Hedwig™. With so many familiar places and popular characters, kids can relive scenes and stories from movies, including Harry Potter and the Half-Blood Prince™, and conjure up endless adventures of their own. Collectible toys, magical minifigures and non-stop action: If you're looking for a top gift for a family member or best friend, LEGO Harry Potter toys offer endless imaginative fun for kids who love building and playing with LEGO bricks.
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    Top comment

    "I recommend this set to anyone with kids that likes harry potter or just legos in general. ...Kid loves it. Can’t believe how expensive these sets are. "

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    Product Description

    LEGO® Harry Potter™ Hogwarts™ Astronomy Tower (75969) is filled to the turrets with iconic locations, cool characters and authentic detail from the Harry Potter movies. Toy brick castle bursting with Harry Potter movie action: This LEGO Hogwarts playset gives kids the freedom to explore the many fascinating rooms of a magical castle with Harry Potter, Hermione Granger™, Horace Slughorn, Luna Lovegood™, Neville Longbottom™, Ron Weasley™, Lavender Brown, Draco Malfoy™ and Hedwig™. With so many familiar places and popular characters, kids can relive scenes and stories from movies, including Harry Potter and the Half-Blood Prince™, and conjure up endless adventures of their own. Collectible toys, magical minifigures and non-stop action: If you're looking for a top gift for a family member or best friend, LEGO Harry Potter toys offer endless imaginative fun for kids who love building and playing with LEGO bricks.
    See all Building Sets & Blocks
    See all Building Sets & Blocks
  7. LEGO - City Great Vehicles Race Car 60322 - Front_Zoom
    Top comment

    "[This review was collected as part of a promotion.] These are great for kids to do so they can learn building skills. Not only are they a learning tool but help kids use their imagination on how to put it together with the help of a parent. ...Great gift for a young kid...Great nice small set for kids. Easy to build without much supervision."

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    Product Description

    Introduce kids to a world of fun and excitement with this LEGO City Race Car (60322) toy playset, featuring an F1-style car, plus tools and a winner’s trophy. Just add the mechanic and racing driver minifigures for hours of exciting racing adventures! Building fun for boys and girls aged 4 and up This 4+ toy construction set includes a pictorial printed building guide and a LEGO Starter Brick element – a pre-molded base from which to start building. You also get digital building instructions, available in the free LEGO Building Instructions app for smartphones and tablets. This amazing interactive guide lets kids zoom, rotate and visualize the finished model from all angles as they build. A world of fun LEGO City Great Vehicles playsets put kids at the heart of the action with cool toys that shift imaginative play into top gear. Children get to explore all kinds of land, air and water vehicles and play out fun scenarios that depict real life in an exciting way.
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    Top comment

    "[This review was collected as part of a promotion.] These are great for kids to do so they can learn building skills. Not only are they a learning tool but help kids use their imagination on how to put it together with the help of a parent. ...Great gift for a young kid...Great nice small set for kids. Easy to build without much supervision."

    See all customer reviews

    Product Description

    Introduce kids to a world of fun and excitement with this LEGO City Race Car (60322) toy playset, featuring an F1-style car, plus tools and a winner’s trophy. Just add the mechanic and racing driver minifigures for hours of exciting racing adventures! Building fun for boys and girls aged 4 and up This 4+ toy construction set includes a pictorial printed building guide and a LEGO Starter Brick element – a pre-molded base from which to start building. You also get digital building instructions, available in the free LEGO Building Instructions app for smartphones and tablets. This amazing interactive guide lets kids zoom, rotate and visualize the finished model from all angles as they build. A world of fun LEGO City Great Vehicles playsets put kids at the heart of the action with cool toys that shift imaginative play into top gear. Children get to explore all kinds of land, air and water vehicles and play out fun scenarios that depict real life in an exciting way.
    See all Building Sets & Blocks
    See all Building Sets & Blocks
  8. Magna-Tiles - Clear Colors 37-Piece Set - Front_Zoom
    Top comment

    "Great building experience for kids....This is an amazing building experience beyond blocks, it allows my child to be so much more creative and expands he limitations beyond. ...Kiddo loves them!...My kid loves these. They are easy for little ones to play with and he has been able to create so many different structures."

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    Product Description

    Build brilliant structures with this 37-piece Magna-Tiles set. The translucent tiles come in a variety of colors and allow children to create beautiful buildings with the appearance of stained glass. This Magna-Tiles set lets children experiment with various aesthetics and design with the easy interlocking pieces for a stimulating experience.
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    Top comment

    "Great building experience for kids....This is an amazing building experience beyond blocks, it allows my child to be so much more creative and expands he limitations beyond. ...Kiddo loves them!...My kid loves these. They are easy for little ones to play with and he has been able to create so many different structures."

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    Product Description

    Build brilliant structures with this 37-piece Magna-Tiles set. The translucent tiles come in a variety of colors and allow children to create beautiful buildings with the appearance of stained glass. This Magna-Tiles set lets children experiment with various aesthetics and design with the easy interlocking pieces for a stimulating experience.
    See all Building Sets & Blocks
    See all Building Sets & Blocks
  9. LEGO - City Great Vehicles Rescue Helicopter Transport 60343 - Front_Zoom
    Top comment

    "Great little set for kiddos to add to their collection....Excellent quality and awesome product for children!"

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    Product Description

    This LEGO City Rescue Helicopter Transport (60343) playset features an iconic red truck with an articulated flatbed trailer and fold-out warning lights, plus a toy rescue helicopter. Just add the driver and pilot minifigures and a touch of imagination for hours of action-packed play. Printed and digital building instructions This 5+ playset includes a printed building guide and interactive digital building instructions – available in the free LEGO Building Instructions app for smartphones and tablets. This easy-to-use digital guide with zoom and rotate tools allows kids to visualize the finished model as they build. Buildable toys for kids LEGO City Great Vehicles playsets deliver feature-rich, land, air and water toys that spark the imagination. Children get to explore all kinds of realistic machines and vehicles, developing physical skills and confidence as they build and play.
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    Top comment

    "Great little set for kiddos to add to their collection....Excellent quality and awesome product for children!"

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    Product Description

    This LEGO City Rescue Helicopter Transport (60343) playset features an iconic red truck with an articulated flatbed trailer and fold-out warning lights, plus a toy rescue helicopter. Just add the driver and pilot minifigures and a touch of imagination for hours of action-packed play. Printed and digital building instructions This 5+ playset includes a printed building guide and interactive digital building instructions – available in the free LEGO Building Instructions app for smartphones and tablets. This easy-to-use digital guide with zoom and rotate tools allows kids to visualize the finished model as they build. Buildable toys for kids LEGO City Great Vehicles playsets deliver feature-rich, land, air and water toys that spark the imagination. Children get to explore all kinds of realistic machines and vehicles, developing physical skills and confidence as they build and play.
    See all Building Sets & Blocks
    See all Building Sets & Blocks
  10. LEGO - Harry Potter Hogwarts Hospital Wing 76398 - Front_Zoom
    Top comment

    "I would recommend this for older children. Too many small pieces for younger children....What can I say, my kid loves it. Not too difficult for a 5 year old to put together with assistance."

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    Product Description

    LEGO Harry Potter Hogwarts Hospital Wing (76398) is bursting with magical play possibilities for kids aged 8+, from caring role play in the infirmary to time-travel adventures in the clock tower. Perfect for Harry Potter fans Young witches and wizards join Harry Potter, Ron Weasley and Hermione Granger in a versatile playset based on a memorable scene from Harry Potter and the Prisoner of Azkaban. Inside the Hogwarts Hospital Wing are 3 beds, a screen and Madam Poppy Pomfrey pushing her cart filled with potions and candy. Ron’s in bed with a bandaged leg, and there’s a bottle of the revolting Skele-gro to hand. Meanwhile, up in the clock tower, Harry and Hermione are using the Time-Turner. Kids twist the tower’s turret to make the clock’s hands spin and travel back in time for another magical adventure. The top and bottom halves of the set detach so other modules can be stacked in between, and the set connects with others in the series to create an entire Hogwarts Castle.
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    Top comment

    "I would recommend this for older children. Too many small pieces for younger children....What can I say, my kid loves it. Not too difficult for a 5 year old to put together with assistance."

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    Product Description

    LEGO Harry Potter Hogwarts Hospital Wing (76398) is bursting with magical play possibilities for kids aged 8+, from caring role play in the infirmary to time-travel adventures in the clock tower. Perfect for Harry Potter fans Young witches and wizards join Harry Potter, Ron Weasley and Hermione Granger in a versatile playset based on a memorable scene from Harry Potter and the Prisoner of Azkaban. Inside the Hogwarts Hospital Wing are 3 beds, a screen and Madam Poppy Pomfrey pushing her cart filled with potions and candy. Ron’s in bed with a bandaged leg, and there’s a bottle of the revolting Skele-gro to hand. Meanwhile, up in the clock tower, Harry and Hermione are using the Time-Turner. Kids twist the tower’s turret to make the clock’s hands spin and travel back in time for another magical adventure. The top and bottom halves of the set detach so other modules can be stacked in between, and the set connects with others in the series to create an entire Hogwarts Castle.
    See all Building Sets & Blocks
    See all Building Sets & Blocks
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