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

There are a lot of options out there for kids who want to build and create with their hands. From simple building blocks to complex kits, the world of construction toys is vast and varied. Browse the top-ranked list of kids building sets 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. ...Glad to have something to keep my child busy."

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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. ...Glad to have something to keep my child busy."

    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

    "This is the exact gift requested by the child which could not be found anywhere else in the area....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

    "This is the exact gift requested by the child which could not be found anywhere else in the area....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 - 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. ...Then the play and imagination that goes with building Legos is awesome! Way better than video games."

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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. ...Then the play and imagination that goes with building Legos is awesome! Way better than video games."

    See all customer reviews

    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
  6. LEGO - Icons Porsche 911 10295 - Front_Zoom

    Model: 6332965
    SKU: 6434063
    Top comment

    "It was an impressive building experience. I highly recommended this!...This was an incredible build with so many great details - I was smiling along building it. I loved Lego as a child and never thought it appropriate as an adult, but then I watched Lego Masters on TV and it was inspiring. "

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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!...This was an incredible build with so many great details - I was smiling along building it. I loved Lego as a child and never thought it appropriate as an adult, but then I watched Lego Masters on TV and it was inspiring. "

    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
  7. 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
  8. LEGO - Easter Tray - Styles may vary - Styles may vary - Angle_Zoom
    Top comment

    "This was a simple easter basket stuffing item. My kid finished it in 20 min....Great small child gift."

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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

    "This was a simple easter basket stuffing item. My kid finished it in 20 min....Great small child gift."

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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
  9. LEGO - Speed Champions BMW M4 GT3 & BMW M Hybrid V8 Race Cars 76922 - Front_Zoom
    Top comment

    "Incredible Building Experience...I have built legos for more than 15 years, and building this set is easily a top 5 building experience for me. ...I love building lego cars and these were a great addition to my growing collection!"

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    Product Description

    Boys and girls aged 9+ will love to own this fantastic double pack of buildable LEGO Speed Champions BMW toy vehicles: the M4 GT3 and the M Hybrid V8 (76922). The LEGO car building set with 2 detailed models is perfect for both kids and adult collectors to build, display and stage amazing races. The BMW M4 GT3 and BMW M Hybrid V8 replica models both include authentic design details from the real-life versions, including tailpipes, diffusers, rear wings, the BMW M Motorsport livery and interior features. The toy race cars both come with a removable roof and a driver minifigure for kids to place inside for racing action. Speed Champions sets let kids and passionate car fans build replica versions of some of the world’s most iconic vehicles. They will be thrilled to create high-quality models from LEGO bricks, featuring distinctive details. Each car toy can be created with the LEGO Builder app, which guides you and your child on an easy and intuitive building adventure. Contains 676 pieces.
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    Top comment

    "Incredible Building Experience...I have built legos for more than 15 years, and building this set is easily a top 5 building experience for me. ...I love building lego cars and these were a great addition to my growing collection!"

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    Product Description

    Boys and girls aged 9+ will love to own this fantastic double pack of buildable LEGO Speed Champions BMW toy vehicles: the M4 GT3 and the M Hybrid V8 (76922). The LEGO car building set with 2 detailed models is perfect for both kids and adult collectors to build, display and stage amazing races. The BMW M4 GT3 and BMW M Hybrid V8 replica models both include authentic design details from the real-life versions, including tailpipes, diffusers, rear wings, the BMW M Motorsport livery and interior features. The toy race cars both come with a removable roof and a driver minifigure for kids to place inside for racing action. Speed Champions sets let kids and passionate car fans build replica versions of some of the world’s most iconic vehicles. They will be thrilled to create high-quality models from LEGO bricks, featuring distinctive details. Each car toy can be created with the LEGO Builder app, which guides you and your child on an easy and intuitive building adventure. Contains 676 pieces.
    See all Building Sets & Blocks
    See all Building Sets & Blocks
  10. LEGO - Speed Champions 2023 McLaren Formula 1 Race Car Toy 76919 - Front_Zoom
    Top comment

    "It is a really fun building experience with some amazing techniques to shape the car! ...Overall I enjoyed building it. Took me roughly an 1 1/2 hours to build (took my time with it). "

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    Product Description

    Boys and girls ages 9 and up can collect, build and display this LEGO Speed Champions 2023 McLaren Formula 1 Race Car (76919) toy vehicle. This sleek F1 toy car for kids includes several iconic design details from the real life racing car that proudly celebrated the 60th anniversary of McLaren Racing and competed in the 2023 Formula One World Championship. The McLaren toy vehicle includes many realistic features: the black and papaya livery, the team sponsor logos, the wheels with Pirelli print and the papaya safety halo. The buildable race car toy also comes with a driver minifigure for kids to place behind the wheel for exciting play races. LEGO Speed Champions sets let kids and passionate car fans build replica versions of some of the world’s most iconic vehicles. They will be thrilled to create high quality models from LEGO bricks, featuring distinctive details. Each car toy can be created with the LEGO Builder app, which guides you and your child on an easy and intuitive building adventure. Contains 245 pieces.
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    Top comment

    "It is a really fun building experience with some amazing techniques to shape the car! ...Overall I enjoyed building it. Took me roughly an 1 1/2 hours to build (took my time with it). "

    See all customer reviews

    Product Description

    Boys and girls ages 9 and up can collect, build and display this LEGO Speed Champions 2023 McLaren Formula 1 Race Car (76919) toy vehicle. This sleek F1 toy car for kids includes several iconic design details from the real life racing car that proudly celebrated the 60th anniversary of McLaren Racing and competed in the 2023 Formula One World Championship. The McLaren toy vehicle includes many realistic features: the black and papaya livery, the team sponsor logos, the wheels with Pirelli print and the papaya safety halo. The buildable race car toy also comes with a driver minifigure for kids to place behind the wheel for exciting play races. LEGO Speed Champions sets let kids and passionate car fans build replica versions of some of the world’s most iconic vehicles. They will be thrilled to create high quality models from LEGO bricks, featuring distinctive details. Each car toy can be created with the LEGO Builder app, which guides you and your child on an easy and intuitive building adventure. Contains 245 pieces.
    See all Building Sets & Blocks
    See all Building Sets & Blocks
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