Sponsored
LEGO Ideas River Steamboat Building Set for Adults 21356
$329.99
In Stock
Eligible for registries and wish lists
Sponsored
About this item
Highlights
- SET SAIL FOR NOSTALGIA – Journey back to the era of elegant river travel with the LEGO Ideas River Steamboat (21356) building set for adults 18 and up
- DETAILED MODEL BOAT – Discover working paddle wheel mechanisms, detailed steam engine with moving pistons, crew quarters, passenger decks, and period-accurate furnishings
- WORKING FEATURES & DETAILS – Activate the paddle wheel mechanism, explore multiple furnished decks, and discover authentic steamboat details throughout this floating piece of history
- DIY BOAT DECOR – The completed model becomes an impressive display piece that celebrates maritime history and 19th-century river travel craftsmanship
- IMMERSIVE BUILDING EXPERIENCE – Access the LEGO Builder App for helpful 3D viewing tools and progress tracking
- FAN-DESIGNED MASTERPIECE – Relax and unwind with a building challenge dreamed up by LEGO fans and brought to life through LEGO bricks
- DIMENSIONS – This detailed steamboat measures over 15.5 in. (40 cm) high, 27 in. (69 cm) long and 5.5 in. (15 cm) wide and contains 4,090 pieces
Description
Set sail into history with the LEGO Ideas River Steamboat (21356) for adults ages 18 and up. This fan-designed masterpiece captures the golden age of river travel through meticulous brick-built craftsmanship. Adult builders can construct an authentic paddle steamer complete with a working paddle wheel, detailed pilothouse, crew quarters, and a functioning steam engine with visible moving parts. As you build, discover intricate details like the music stage, restaurant, and vintage furnishings throughout every deck from the elegant passenger areas to the bustling engine room. The completed model doubles as sophisticated home or office decor that transforms your space into a nautical museum. An ideal gift for boat enthusiasts, history lovers, and men and women who enjoy detailed model building kits, this collectible offers a relaxing creative experience that celebrates maritime heritage. For an immersive build, the LEGO Builder app provides helpful 3D viewing tools and progress tracking. Contains 4,090 pieces.
Number of Pieces: 4090
Suggested Age: 18 Years and Up
Model #: 21356
Educational Focus: Gross Motor Skills, Fine Motor Skills, Creativity, Sensory Development, Creative Thinking
Includes: Toy Building Components
Industry or Government Certifications: CPSIA Certified
Material: Plastic
Battery: No Battery Used
TCIN: 93342492
UPC: 673419408301
Item Number (DPCI): 204-00-4850
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: 7.087 inches length x 20.591 inches width x 18.898 inches height
Estimated ship weight: 11.089 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.
Frequently bought together
Guests also viewed
Discover more options
Related Categories
Guests are saying
This set offers a captivating building experience with intricate details and moving parts, making it a standout display piece. Guests appreciate the fun and challenge of assembling the steamboat, with its unique features like the paddle wheel and various themed rooms. However, some have noted minor issues with stability and missing pieces. Overall, it is a highly recommended set for both display and enjoyment.
Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
4.7 out of 5 stars with 72 reviews
broad age appeal: 1 out of 5
ease of use: 1 out of 5
length of play: 1 out of 5
quality: 1 out of 5
value: 1 out of 5
0% would recommend
1 recommendations
5 out of 5 stars
4 November, 2025
originally posted on LEGO
Thank you to Aaron Hall.
Brilliant build. Thanks Aaron. I'd purchase future Ideas projects that he develops.
5 out of 5 stars
3 November, 2025
originally posted on LEGO
Great!
Exceptional build with easy to follow instructions. Heaps of additional small parts. Very happy
5 out of 5 stars
16 October, 2025
originally posted on LEGO
Best Build
This is the best build ever. Detail was absolutely incredible. Engine room, kitchen, sleeping quarters, cocktail lounge with bandstand, dinning room, toilet, pilot house. Working paddle wheel, gangplanks, anchor, rudder, removable sections to view all the details. Only complaint is the base stand.
4 out of 5 stars
9 October, 2025
originally posted on LEGO
Steam boat up in smoke
Gday, Great display piece. Looks great on the shelf. Play features are lost on this build. All the interior (which looks great by the way), is lost on having to pull layers off to see. This set would be 100% better if you could swing a wall open and look inside without pulling layers off this beautiful cake. it's a reasonably good build experience and looks great sitting on the shelf, no minifigs and the difficult steps it takes to look inside at the other half of the set let's this one down. If you have money burning a hole in your pocket then grab it, if your on a budget then maybe there are better sets for you to purchase.
5 out of 5 stars
22 September, 2025
originally posted on LEGO
Steamboat
I absolutely loved building this steamboat, the detail inside with the music room and instruments was amazing, and beds and kitchen, it was easy to follow and no tricky bits, getting the ticket box was a bonus to finish it off, well done Lego nice piece would definitely recommend to get.
4 out of 5 stars
19 September, 2025
originally posted on LEGO
Overall good, with issues
Overall, this is a beautiful display piece. It really looks great. But, while there are "play" features to it, like the geared paddle wheel, it is in no way suitable for play. The rudder is only attached by a single stud, and is insanely easy to knock off, and pain to re-attach once the paddle-wheel is in place. The upper levels cannot be detached to see the interior without taking apart the boarding ramp rigging. As a display piece this model really, really, would benefit from a light kit. Without it, much of it is shadowed and detail is lost.
1 reply from LEGO® Customer Service team - 2 months ago
Thank you for sharing your building experience and your review on your set! We would suggest double checking your build around the rudder as there may be a piece slightly off from where it is meant to be and to make sure all pieces are tightly pressed together to make sure the rudder stays in place. You should also be able to access the upper level by detaching the top piece without needing to remove the pieces that the boarding ramp rigging is attached to/sitting on top of. Please reach out to us at LEGO.build/Service-BV so we can help troubleshoot and get your River Steamboat cruising!
5 out of 5 stars
15 September, 2025
originally posted on LEGO
Great build
I very much enjoyed putting this together. It was an enjoyable and changeling experience
5 out of 5 stars
14 September, 2025
originally posted on LEGO
Live in the Mississippi River.
Knew I needed it the second it was announced. I see plenty of river boars all summer. Really fun boat. Really fun build. Has as much detail as the Icons buildings.
5 out of 5 stars
13 September, 2025
originally posted on LEGO
River Steamboat
Great set I am enjoying legoing it. It’s my first large set but having fun.
1 out of 5 stars
14 August, 2025
originally posted on LEGO
worst lego build ever
This set has too many small parts that attach with just one button. Touch it the wrong way and it falls to bits. Really needs glued!
1 reply from LEGO® Customer Service team - 3 months ago
Not the glue! If pieces aren't staying together and rebuilding doesn't help, please get in touch with us at LEGO.build/Service-BV so we can get more details and lend a hand with your build.
5 out of 5 stars
29 July, 2025
originally posted on LEGO
Gorgeous Set
I have always loved Lego and recently was able to start getting into building them. I would say this is my most challenging build so far, but one I loved every step of the way. It was fun and so many hidden little details made it even more special.
5 out of 5 stars
29 July, 2025
originally posted on LEGO
Wonderful
I like putting together all Legos The boat is fun
2 out of 5 stars
17 July, 2025
originally posted on LEGO
Disaster
I love the set but the build experience was haunted due to the gearbox piece being extremely warped and taking 2-3 weeks to arrive! It is a great set though.
1 reply from LEGO® Customer Service team - 4 months ago
Oh no! It's disappointing when your build isn’t going as planned. We're glad you got in touch to let us know!
5 out of 5 stars
11 July, 2025
originally posted on LEGO
Paddle Boat Steamer
I enjoyed building this very much. It was easy to follow and fun to build.
5 out of 5 stars
7 July, 2025
originally posted on LEGO
Flowing build with Amazing details
This was my first larger set to build and it took a few days, but looks amazing. This has stated a collection I plan to continue to grow.
1 out of 5 stars
Thumbs down graphic, would not recommend
6 July, 2025
Shipping is awful
Target shipped the item then it came all beat up box opened pieces missing no thanks.
5 out of 5 stars
6 July, 2025
originally posted on LEGO
Riverboat
I haven’t finished building it yet but I’m loving the attention to the details, the kitchen, the jazz bar, the movable rudder!! Taking my time and enjoying every aspect of the build!!!
5 out of 5 stars
6 July, 2025
originally posted on LEGO
amazing build
This is the best set ever and anyone who say otherwise i will fight
5 out of 5 stars
26 June, 2025
originally posted on LEGO
Didn’t miss a detail!
I bought this set because I had a long weekend and it’d been awhile since I’d built a Lego. I’ve always enjoyed sets scaled for mini-figs and thought it looked like a fun build. I’ll just say, I couldn’t have been more impressed! From start to finish it’s so cool to watch each layer of the steamboat come together with the astounding level of detail for each level. At the end when you don’t know how there could possibly be more, you begin adding things you didn’t even think about, but things that make sense for a river steamboat. I’d highly recommend this set—also is HUGE and looks great on display.
5 out of 5 stars
22 June, 2025
originally posted on LEGO
?
Looks like it will be fun to put together, and challenging