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LEGO Technic Deep-Sea Research Submarine Building Toy 42201
$33.99
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About this item
Highlights
- SUBMARINE TOY FOR KIDS – Let young science and engineers create their own deep-sea adventures with this LEGO Technic Deep-Sea Research Submarine building set for kids ages 9 and up
- REALISTIC FEATURES – This creative building set includes lots of realistic features like the rotating propellers and grabbing arm to help kids explore how submarines work
- DETAILED ACCESSORIES – The transparent cockpit opens to give access to the seat and controls; the barrel accessory can be picked up using the submarine’s extending grabbing arm
- BUILDABLE SUBMARINE GIFT IDEA – This set makes a fun gift idea for kids who like exploring science and engineering toys, or anyone who is interested in submarines and deep-sea exploration
- DIMENSIONS – This model measures over 6 in. (15 cm) high
Description
Encourage kids’ curiosity as they explore the secrets of the oceans with the LEGO Technic Deep-Sea Research Submarine (42201) building toy. This toy for boys and girls ages 9 and up is packed with features found on real submarines, including steering, 3 spinning propellers, 3 air tanks, and a cockpit with a seat and controls. The LEGO submarine toy features an extending arm to grab and lift the barrel as kids play out their own sea-bed adventures. This building blocks set makes a great gift for kids who enjoy buildable vehicle toys. Use the LEGO Builder app for an intuitive building adventure, with features that include zooming in and rotating models in 3D, saving sets and tracking progress. Check out the extended range of LEGO Technic sets, which feature realistic movement to introduce young builders to the universe of engineering. Contains 413 pieces.
Number of Pieces: 413
Suggested Age: 9 Years and Up
Model #: 42201
Educational Focus: Engineering, Sensory Development, Fine Motor Skills, Gross Motor Skills, Creativity
Includes: Toy Building Components
Material: Plastic
Battery: No Battery Used
TCIN: 92538353
UPC: 673419405461
Item Number (DPCI): 204-00-8022
Origin: Made in the USA and Imported
If the item details aren’t accurate or complete, we want to know about it.
Shipping details
Estimated ship dimensions: 11.1 inches length x 10.2 inches width x 2.4 inches height
Estimated ship weight: 1.25 pounds
Return details
This item can be returned to any Target store or Target.com.
This item must be returned within 90 days of the date it was purchased in store, shipped, delivered by a Shipt shopper, or made ready for pickup.
See the return policy for complete information.
Q: Are there stickers, or are the pieces printed with the designs?
submitted by jburk - 27 days ago
A: Hi there! This set comes with a sticker sheet, so the pieces aren’t printed. -Coryne, LEGO® Customer Service
submitted byLEGO Customer Service - 27 days agoBrand expert
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5.0 out of 5 stars with 30 reviews
broad age appeal: 5 out of 5
100% would recommend
2 recommendations
5 out of 5 stars
3 January, 2026
originally posted on LEGO
Detailed and fun!
I love the features and details in this: the tilting and spinning propellers, the retractable claw arm, the opening hatch, and more! The only negative is that the arm is a bit loose due to some play in worm drive, but that's a small matter. All in all this is a great set with cool style that's fun to build and play with.
5 out of 5 stars
29 December, 2025
originally posted on influenster.com

Amazing fun
[This review was collected as part of a promotion.] This LEGO Technic Deep-Sea Research Submarine is a brilliant build with lots of realistic details. The moving propellers, steering and robotic arm make it feel very interactive and fun to explore once built. The instructions are clear and the build is engaging without being frustrating. A great set for anyone who enjoys engineering-style LEGO builds and display pieces.
5 out of 5 stars
28 December, 2025
originally posted on influenster.com

Absolutely enjoyed it!
[This review was collected as part of a promotion.] Received this wonderful Lego Technic Deep Sea Research Submarine from Influenster in exchange for an honest review. The instructions were clear and easy to follow. The parts were complete and nothing was missing. Me and my children thoroughly enjoyed building this Submarine. It was an absolute delight to watch the final outcome!
5 out of 5 stars
Thumbs up graphic, would recommend
19 December, 2025Verified purchase
(no review title)
Great!
5 out of 5 stars
19 December, 2025
originally posted on influenster.com

Awesome team work for children or even adults
[This review was collected as part of a promotion.] Thank you influenster this was a great early Christmas present for the kids everyone tucked in and started this it has taken a good few days to do but this has kept them quite busy, all the details and the little bits that come to life once it’s done is amazing, this looks so real. My kids are all enjoying the team work which is lovely to see. If you want to keep your kids busy then this is the one
5 out of 5 stars
18 December, 2025
originally posted on influenster.com

Great Lego set
[This review was collected as part of a promotion.] My son really enjoyed putting this together. It’s great shapes & sizes of ego that fit together to make a submarine. The instructions were easy to follow & made of bright coloured pieces. It has a few different functions too so makes it a great product for younger boys. I think 9 is a good age to start this as any smaller children wouldn’t be able to follow the instructions. A great piece for older children, boys or girls !
5 out of 5 stars
15 December, 2025
originally posted on influenster.com

Great :)
[This review was collected as part of a promotion.] The LEGO Technic Submarine has been a fantastic addition to our home. My child absolutely loves playing with it, especially because it’s so interactive. The moving parts really bring the submarine to life and keep them engaged for long periods of time. It’s not just fun to build, but also fun to play with afterwards, which isn’t always the case with building sets. The design feels sturdy and well thought out, and it encourages creativity, problem solving, and hands-on exploration. Overall, this set has provided hours of entertainment. If you have kids that love mechanical style toys, this is a good choice.
5 out of 5 stars
13 December, 2025
originally posted on influenster.com

A detailed, sturdy LEGO set that’s fun to build an
[This review was collected as part of a promotion.] The LEGO Deep-Sea Research Submarine is a really fun and engaging build. The details are impressive and the finished submarine looks sturdy and well designed. I love the moving parts and accessories, which make it great for imaginative play as well as display. The pieces feel high quality, fit together perfectly, and the build keeps kids interested from start to finish. A brilliant set for anyone who enjoys LEGO or ocean-themed adventures.
5 out of 5 stars
13 December, 2025
originally posted on influenster.com

Really lovely gift!
[This review was collected as part of a promotion.] The kids loved building this, it kept them busy for a whole day! Very easy to build, nice and light. Waterproof so doesn't matter if little ones spill anything on it.
5 out of 5 stars
12 December, 2025
originally posted on influenster.com

Great for technic builders! Harder for children
[This review was collected as part of a promotion.] The Lego Technic Deep Sea Research Submarine is a fantastic set for both Lego enthusiasts and fans of underwater exploration. This set falls into the higher difficulty range for Technic builds. Some smaller parts and advanced mechanisms require patience and focus, but it’s all part of the fun for experienced builders. The best part of the Lego Technic Deep Sea Research Submarine is the satisfaction of seeing the moving parts in action after completing the build. Plus, the finished model looks great on display! It’s a lovely smaller build and it was really fun to build. Assembly is a little harder than normal technics but it’s absolutely fine. It’s nice to hold too and doesn’t weigh anything!
5 out of 5 stars
30 August, 2025
originally posted on LEGO
Very fun to make
Many features for fun play. Realistic, simple and interactive. The robot arm is amazing.
5 out of 5 stars
9 July, 2025
originally posted on LEGO
Research Submarine
This is a great little build and fun to make. Goes really well with the Rescue Helicopter #42145
5 out of 5 stars
29 April, 2025
originally posted on influenster.com

Fun Lego!!
[This review was collected as part of a promotion.] I’m so happy that I got this for my teenage son. He enjoyed putting it together. It took him about an hour to build it. He said it had good playability. You can move lots of parts on it.
5 out of 5 stars
13 April, 2025
originally posted on influenster.com

A fun and worthwhile LEGO set!
[This review was collected as part of a promotion.] The LEGO Deep-Sea Research Submarine 42201 was a hit with my kid! The assembly process was engaging but not overly difficult, perfect for developing problem-solving skills. I appreciated the safety features – the pieces are sturdy and appropriately sized. In terms of educational benefits, it sparked curiosity about marine exploration. The submarine feels quite durable, surviving enthusiastic play sessions. Most importantly, the entertainment value has been high; it's become a favorite toy for imaginative underwater adventures.
5 out of 5 stars
26 March, 2025
originally posted on influenster.com

Can't go wrong with lego
[This review was collected as part of a promotion.] It's hard to go wrong with a lego set! My 5 year did think it seemed too old for him (which he often works on challenging sets) so not sure what it was about this one. My husband and middle son worked on it and got it completed and they all enjoyed it. It's an intricate piece and instructions were easy to follow.
5 out of 5 stars
7 March, 2025
originally posted on influenster.com

Great brand
[This review was collected as part of a promotion.] Great Lego I love these they are great durable and really strong . They have a lot of safety feature and the assembly process isn’t hard at all to put them together . These last forever .
5 out of 5 stars
4 March, 2025
originally posted on influenster.com

LEGO Deep Sea Explorer – A Fun and Detailed Build
[This review was collected as part of a promotion.] MThis LEGO deep-sea exploration vehicle is a fantastic set that blends creativity with functional design. The build features a sleek, futuristic submarine-like design with a large, clear cockpit, a detailed interior, and a striking yellow and blue color scheme. The rotating propellers and articulated mechanical claw at the front add to its playability, making it an engaging set for kids and collectors alike. The set includes intricate details, such as a well-designed pilot’s seat with a control panel, giving it a realistic feel. The modular structure is sturdy yet interactive, allowing for imaginative deep-sea missions. The second image provides a unique underwater-like perspective, which enhances the theme of exploration. Overall, this is a well-thought-out LEGO build with great attention to detail. It's perfect for those who enjoy ocean-themed adventures and mechanical designs. Highly recommended for LEGO enthusiasts and young explorers!
5 out of 5 stars
3 March, 2025
originally posted on influenster.com

Super engaged kid!
[This review was collected as part of a promotion.] LEGOS are always awesome puzzles for kids!! This particular one is engaging for 9+ year olds. My son is 10yr old and became so esthetic when he saw this! He’s still building it so will post a full picture after he’s finished with it.
5 out of 5 stars
28 February, 2025
originally posted on influenster.com

Fun set to build
[This review was collected as part of a promotion.] My son is a major Lego fan and he had so much fun building this set! The technic sets are some of his favorites to build. The moving propellers and the air tanks on this set are so cool. So much fun for any Lego lover!
5 out of 5 stars
27 February, 2025
originally posted on influenster.com

Perfect for Lego master
[This review was collected as part of a promotion.] My youngest son absolutely loves Lego, we turn our spare bedroom into a Lego room for him because he had so many set and didn't have any room in his room to build or display them. Now he has a Lego room for all his Lego and action figures