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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 - Classic Creative Monsters 11017 Building Kit with 5 Toys for Kids (140 Pieces) - Front_Zoom
    Top comment

    "Easy to put together even for a young kid. I like that it's not some big huge project that my kid will get bored of before it's finished. ...Kids love lego...Legos are all time favorite toy for kids. Help them in their motor skills and being innovative as well."

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    Product Description

    Kids, friends and families can enjoy endless hours of creative fun with this LEGO Classic Creative Monsters (11017) playset. It comes with a rainbow of colorful LEGO pieces, 5 toy monster build ideas and a bag of extra bricks for free building! Perfect for children aged 4 and up Each of the 5 monster mini build ideas comes with its own step-by-step, pictorial building guide, so even first-time builders can experience the pride and joy of constructing their own LEGO toys. Developing key life skills LEGO Classic building sets put ideas and inspiration into kids’ hands, with exciting models that stimulate unlimited open-ended play, helping children develop creativity skills that will last a lifetime.
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    Top comment

    "Easy to put together even for a young kid. I like that it's not some big huge project that my kid will get bored of before it's finished. ...Kids love lego...Legos are all time favorite toy for kids. Help them in their motor skills and being innovative as well."

    See all customer reviews

    Product Description

    Kids, friends and families can enjoy endless hours of creative fun with this LEGO Classic Creative Monsters (11017) playset. It comes with a rainbow of colorful LEGO pieces, 5 toy monster build ideas and a bag of extra bricks for free building! Perfect for children aged 4 and up Each of the 5 monster mini build ideas comes with its own step-by-step, pictorial building guide, so even first-time builders can experience the pride and joy of constructing their own LEGO toys. Developing key life skills LEGO Classic building sets put ideas and inspiration into kids’ hands, with exciting models that stimulate unlimited open-ended play, helping children develop creativity skills that will last a lifetime.
    See all Building Sets & Blocks
    See all Building Sets & Blocks
  2. LEGO - Creator 3in1 Fantasy Forest Creatures 31125 - Front_Zoom
    Top comment

    "I don’t suggest it for younger kids because of the smaller pieces....Received qucikly and was a lot of fun building and setting. All good! Thank you Bestbuy!"

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    Product Description

    Kids aged 7 and up can play out magical woodland animal stories with this supercute LEGO Creator 3in1 Fantasy Forest Creatures (31125) building set. It features a wise owl toy with a rotating head and posable tail, feet, wings and feathers, reading a storybook to a hedgehog. 3in1 toys kick-start creative fun Kids have the chance to build 3 different, fun-filled scenes with this brilliant LEGO 3in1 set. They can build a wise owl and a hedgehog, rebuild it into a young deer and rabbit, turn it into a cheeky squirrel nibbling an acorn, or use the 175 bricks to create a new animal. A digital experience for LEGO builders The animal toys set comes with interactive digital building instructions to make the building experience even more fun. Available in the free LEGO Building Instructions app for use on smartphones and tablets, the zoom and rotate tools help kids visualize the model as they build.
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    Top comment

    "I don’t suggest it for younger kids because of the smaller pieces....Received qucikly and was a lot of fun building and setting. All good! Thank you Bestbuy!"

    See all customer reviews

    Product Description

    Kids aged 7 and up can play out magical woodland animal stories with this supercute LEGO Creator 3in1 Fantasy Forest Creatures (31125) building set. It features a wise owl toy with a rotating head and posable tail, feet, wings and feathers, reading a storybook to a hedgehog. 3in1 toys kick-start creative fun Kids have the chance to build 3 different, fun-filled scenes with this brilliant LEGO 3in1 set. They can build a wise owl and a hedgehog, rebuild it into a young deer and rabbit, turn it into a cheeky squirrel nibbling an acorn, or use the 175 bricks to create a new animal. A digital experience for LEGO builders The animal toys set comes with interactive digital building instructions to make the building experience even more fun. Available in the free LEGO Building Instructions app for use on smartphones and tablets, the zoom and rotate tools help kids visualize the model as they build.
    See all Building Sets & Blocks
    See all Building Sets & Blocks
  3. LEGO - Speed Champions Mercedes-AMG F1 W12 E Performance & Mercedes-AMG Project One 76909 - Front_Zoom
    Top comment

    "I got the LEGO Speed Champions Mercedes-AMG F1 W12 E Performance & Mercedes-AMG Project One (76909) building set.and my kids just love it they make the cars and the naked their own car it's nice to see them play together. ...excellent set for people who like sets with tremendous and unique building techniques. would definitely recommend it!"

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    Product Description

    Kids and race fans can now collect and explore 2 vehicles at the forefront of race car design with this LEGO Speed Champions Mercedes-AMG F1 W12 E Performance & Mercedes-AMG Project One (76909) building set. A collector’s dream, these collectible toy cars are fun to build, great for display and perfect for exciting racing action. 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 cool cars LEGO Speed Champions sets deliver authentic replicas of the world’s most innovative and best-known vehicles. Perfect for display, the collectible models are also great for thrilling race action against other vehicles from the Speed Champions range.
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    Top comment

    "I got the LEGO Speed Champions Mercedes-AMG F1 W12 E Performance & Mercedes-AMG Project One (76909) building set.and my kids just love it they make the cars and the naked their own car it's nice to see them play together. ...excellent set for people who like sets with tremendous and unique building techniques. would definitely recommend it!"

    See all customer reviews

    Product Description

    Kids and race fans can now collect and explore 2 vehicles at the forefront of race car design with this LEGO Speed Champions Mercedes-AMG F1 W12 E Performance & Mercedes-AMG Project One (76909) building set. A collector’s dream, these collectible toy cars are fun to build, great for display and perfect for exciting racing action. 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 cool cars LEGO Speed Champions sets deliver authentic replicas of the world’s most innovative and best-known vehicles. Perfect for display, the collectible models are also great for thrilling race action against other vehicles from the Speed Champions range.
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    See all Building Sets & Blocks
  4. LEGO - Speed Champions Lamborghini Countach 76908 - Front_Zoom
    Top comment

    "Everything went together as it should. No issue. My kid loved it...This is a great looking car, my son loved building it"

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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

    "Everything went together as it should. No issue. My kid loved it...This is a great looking car, my son loved building it"

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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.
    See all Building Sets & Blocks
    See all Building Sets & Blocks
  5. LEGO - Technic McLaren Formula 1 Race Car 42141 Model Building Kit (1,432 Pieces) - Front_Zoom
    Top comment

    "I had very few issues building the car....i loved it building time just above 10 hours to complete but overall exciting build and good use of bricks"

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    Product Description

    Remove all distractions. Channel your champion’s focus. It’s time to build a highly detailed LEGO Technic McLaren Formula 1 Race Car 42141 model. When you cross the finish line, you’ll feel immense pride – with an impressive display model to celebrate your dedication. A close collaboration between the LEGO Group and McLaren Racing For 2022, the LEGO Technic designers have worked closely with the designers at McLaren Racing. Both sets of experts developed their model at the same time, making this a very special collaboration. Just like the real car, this LEGO Technic version features a V6 cylinder engine with moving pistons, steering, suspension and differential. Drive your passion Racing drivers call it the zone. A state of heightened concentration required for you to perform at your very best. Now it’s time for you to get in the zone as you channel that same focus to recreate your favorite vehicles with LEGO Technic sets, designed for adults and fans of collectible cars.
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    Top comment

    "I had very few issues building the car....i loved it building time just above 10 hours to complete but overall exciting build and good use of bricks"

    See all customer reviews

    Product Description

    Remove all distractions. Channel your champion’s focus. It’s time to build a highly detailed LEGO Technic McLaren Formula 1 Race Car 42141 model. When you cross the finish line, you’ll feel immense pride – with an impressive display model to celebrate your dedication. A close collaboration between the LEGO Group and McLaren Racing For 2022, the LEGO Technic designers have worked closely with the designers at McLaren Racing. Both sets of experts developed their model at the same time, making this a very special collaboration. Just like the real car, this LEGO Technic version features a V6 cylinder engine with moving pistons, steering, suspension and differential. Drive your passion Racing drivers call it the zone. A state of heightened concentration required for you to perform at your very best. Now it’s time for you to get in the zone as you channel that same focus to recreate your favorite vehicles with LEGO Technic sets, designed for adults and fans of collectible cars.
    See all Building Sets & Blocks
    See all Building Sets & Blocks
  6. LEGO - Creator Medieval Castle 31120 - Front_Zoom

    Model: 6333046
    SKU: 6470748
    Top comment

    "Building this with my son was a blast, I'm totally impressed comparing this castle to the castles I built when I was a kid. ...This set is awesome! Had so much fun building with my kids. The extra details like the chickens and the rat were really nice. 3 in 1 sets made it extra fun,.we tried all 3. "

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    Product Description

    Kids will love taking a trip back in time with this brilliantly detailed LEGO Creator 3in1 Medieval Castle (31120). It’s packed with all they need to create captivating stories – a 2-floored Castle toy with an opening gate, water mill, prison, king’s room, 3 minifigures, dragon toy, 3 chickens and a rat. There are also hinges so the Castle can fold open at the back.3in1 awesome toys fuel kids’ passionsCreative kids have the chance to build 3 different models with this LEGO Creator 3in1 set.They can start with the Medieval Castle, rebuild it into a castle tower with a catapult or transform it into a bustling marketplace with a water mill, tower and prison.Fantastic gifts for kids to grip their imaginationsLEGO Creator 3in1 buildable toys let kids enjoy imaginative play with 3 different models in every box! The possibilities are endless as each model can be rebuilt into something new. Select from a brilliant 3in1 range including crocodiles, fairgrounds and rockets.
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    Top comment

    "Building this with my son was a blast, I'm totally impressed comparing this castle to the castles I built when I was a kid. ...This set is awesome! Had so much fun building with my kids. The extra details like the chickens and the rat were really nice. 3 in 1 sets made it extra fun,.we tried all 3. "

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    Product Description

    Kids will love taking a trip back in time with this brilliantly detailed LEGO Creator 3in1 Medieval Castle (31120). It’s packed with all they need to create captivating stories – a 2-floored Castle toy with an opening gate, water mill, prison, king’s room, 3 minifigures, dragon toy, 3 chickens and a rat. There are also hinges so the Castle can fold open at the back.3in1 awesome toys fuel kids’ passionsCreative kids have the chance to build 3 different models with this LEGO Creator 3in1 set.They can start with the Medieval Castle, rebuild it into a castle tower with a catapult or transform it into a bustling marketplace with a water mill, tower and prison.Fantastic gifts for kids to grip their imaginationsLEGO Creator 3in1 buildable toys let kids enjoy imaginative play with 3 different models in every box! The possibilities are endless as each model can be rebuilt into something new. Select from a brilliant 3in1 range including crocodiles, fairgrounds and rockets.
    See all Building Sets & Blocks
    See all Building Sets & Blocks
  7. LEGO - Icons Porsche 911 10295 - Front_Zoom

    Model: 6332965
    SKU: 6434063
    Top comment

    "It was an impressive building experience. I highly recommended this!...Great experience building. Compliments my place really well as a display piece too!! "

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    Product Description

    Celebrate the unmistakable style of Porsche with this fantastic building challenge as you create your own classic, collectible car with the LEGO Porsche 911 (10295) model kit. Choose to build either the Turbo model with its turbocharged engine or the Targa with its iconic Targa bar and a removable roof that stores under the hood.Build your favorite Porsche 911Both the Turbo and the Targa model cars feature authentic Porsche 911 details like the iconic front and rear bumpers, angled headlights,printed logo and number plates. And the interior is just as impressive with working steering, gearshift, emergency brake, tilting seats and a dark-orange-and-nougat color scheme.A building project for youThe LEGO Porsche 911 is part of a collection of buildable model kits for adults. From classic collectible cars to detailed buildings, these LEGO sets are the perfect way to escape everyday life with an immersive building project.
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    Top comment

    "It was an impressive building experience. I highly recommended this!...Great experience building. Compliments my place really well as a display piece too!! "

    See all customer reviews

    Product Description

    Celebrate the unmistakable style of Porsche with this fantastic building challenge as you create your own classic, collectible car with the LEGO Porsche 911 (10295) model kit. Choose to build either the Turbo model with its turbocharged engine or the Targa with its iconic Targa bar and a removable roof that stores under the hood.Build your favorite Porsche 911Both the Turbo and the Targa model cars feature authentic Porsche 911 details like the iconic front and rear bumpers, angled headlights,printed logo and number plates. And the interior is just as impressive with working steering, gearshift, emergency brake, tilting seats and a dark-orange-and-nougat color scheme.A building project for youThe LEGO Porsche 911 is part of a collection of buildable model kits for adults. From classic collectible cars to detailed buildings, these LEGO sets are the perfect way to escape everyday life with an immersive building project.
    See all Building Sets & Blocks
    See all Building Sets & Blocks
  8. LEGO - Ideas Home Alone 21330 - Front_Zoom

    Model: 6347938
    SKU: 6485720
    Top comment

    "I received this set for Father's Day. Building it was a wonderful way to relive childhood memories and build new ones with my own kids at the same time....Home alone….. but having fun building it...Awesome lego set, takes me back to when i was a kid"

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    Product Description

    Relive a family-favorite Christmas comedy movie with this LEGO Ideas Home Alone set (21330) for play and display. The McCallisters’ house is packed with instantly recognizable details and delightful features to recreate hilarious scenes. There is everything you need to stage Kevin’s fake Christmas party, a basement furnace with a LEGO light brick, iron-drop function, swinging paint cans, collapsible shelves, zip line from the attic to the tree house and more. Each level of the house is detachable, and the walls and roof open up for easy access. Top Christmas holiday gift The set includes 5 LEGO minifigures of Kevin McCallister, mom Kate McCallister, crooks Harry and Marv and neighbor ‘Old Man’ Marley, plus Harry and Marv’s van with crowbar and police hat elements inside. With 3,957 pieces, this is the biggest LEGO Ideas set so far and the bricks are divided into bags following the movie’s plotline, so you can relive the story as you build during the holidays.
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    Top comment

    "I received this set for Father's Day. Building it was a wonderful way to relive childhood memories and build new ones with my own kids at the same time....Home alone….. but having fun building it...Awesome lego set, takes me back to when i was a kid"

    See all customer reviews

    Product Description

    Relive a family-favorite Christmas comedy movie with this LEGO Ideas Home Alone set (21330) for play and display. The McCallisters’ house is packed with instantly recognizable details and delightful features to recreate hilarious scenes. There is everything you need to stage Kevin’s fake Christmas party, a basement furnace with a LEGO light brick, iron-drop function, swinging paint cans, collapsible shelves, zip line from the attic to the tree house and more. Each level of the house is detachable, and the walls and roof open up for easy access. Top Christmas holiday gift The set includes 5 LEGO minifigures of Kevin McCallister, mom Kate McCallister, crooks Harry and Marv and neighbor ‘Old Man’ Marley, plus Harry and Marv’s van with crowbar and police hat elements inside. With 3,957 pieces, this is the biggest LEGO Ideas set so far and the bricks are divided into bags following the movie’s plotline, so you can relive the story as you build during the holidays.
    See all Building Sets & Blocks
    See all Building Sets & Blocks
  9. LEGO - Jurassic World Giganotosaurus & Therizinosaurus Attack 76949 (658 Pieces) - Front_Zoom
    Top comment

    "The giganotosaurus is happily bigger than the Lego t-rex. The building uses fun techniques and is packed full of detail. ...I'm envious that they didn't have this when I was a kid. My son absolutely loves Legos and I absolutely love dinosaurs so it's been a joy for us to build it together. "

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    Product Description

    Jurassic World Dominion fans can relive epic movie action with the awesome Giganotosaurus & Therizinosaurus Attack (76949) toy playset. A cool gift for trendsetting kids who love dinosaurs, it features 2 new-for-April-2022 posable toy dinosaur figures, a buildable HQ with a detailed lab, a garage for the all-terrain buggy, an observation tower with collapsing platform function, a helicopter with spinning rotors and a cargo compartment. Role-play adventures This premium-quality set for ages 9and up includes 6 minifigures – Owen Grady, Claire Dearing, Dr. Alan Grant with an amber fossil element, Dr. Ellie Sattler, Kayla Watts and Dr. Henry Wu – to bring children’s stories to life. Easy-to-follow illustrated instructions are included so even LEGO beginners can build confidently and enjoy the process. Dinosaur action! There are LEGO Jurassic World building toys to delight fans of all ages, featuring dinosaur figures, popular characters, cool vehicles and more for playtime fun anddisplay.
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    Top comment

    "The giganotosaurus is happily bigger than the Lego t-rex. The building uses fun techniques and is packed full of detail. ...I'm envious that they didn't have this when I was a kid. My son absolutely loves Legos and I absolutely love dinosaurs so it's been a joy for us to build it together. "

    See all customer reviews

    Product Description

    Jurassic World Dominion fans can relive epic movie action with the awesome Giganotosaurus & Therizinosaurus Attack (76949) toy playset. A cool gift for trendsetting kids who love dinosaurs, it features 2 new-for-April-2022 posable toy dinosaur figures, a buildable HQ with a detailed lab, a garage for the all-terrain buggy, an observation tower with collapsing platform function, a helicopter with spinning rotors and a cargo compartment. Role-play adventures This premium-quality set for ages 9and up includes 6 minifigures – Owen Grady, Claire Dearing, Dr. Alan Grant with an amber fossil element, Dr. Ellie Sattler, Kayla Watts and Dr. Henry Wu – to bring children’s stories to life. Easy-to-follow illustrated instructions are included so even LEGO beginners can build confidently and enjoy the process. Dinosaur action! There are LEGO Jurassic World building toys to delight fans of all ages, featuring dinosaur figures, popular characters, cool vehicles and more for playtime fun anddisplay.
    See all Building Sets & Blocks
    See all Building Sets & Blocks
  10. LEGO - Easter Tray - Styles may vary - Styles may vary - Angle_Zoom
    Top comment

    "Quick and easy Easter Basket item that the kids enjoyed....This was a simple easter basket stuffing item. My kid finished it in 20 min."

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    Product Description

    Celebrate Easter with one of these cute sets (styles may vary) by building an Easter bunny completed with colorful eggs or Minecraft Steve and Baby Panda set.
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    Top comment

    "Quick and easy Easter Basket item that the kids enjoyed....This was a simple easter basket stuffing item. My kid finished it in 20 min."

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    Product Description

    Celebrate Easter with one of these cute sets (styles may vary) by building an Easter bunny completed with colorful eggs or Minecraft Steve and Baby Panda set.
    See all Building Sets & Blocks
    See all Building Sets & Blocks
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