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, Creativity, Fine Motor Skills, Sensory Development, Creative Thinking
Theme: History
Includes: Toy Building Components
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: 23.1 inches length x 19.6 inches width x 7.9 inches height
Estimated ship weight: 14.05 pounds
This item ships in its manufacturer’s packaging, revealing what’s inside. ·
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, delivered to the guest, delivered by a Shipt shopper, or picked up by the guest.
This set offers an engaging building experience with intricate details and a stunning design that makes it a perfect display piece. Guests appreciate the clear instructions and the enjoyable process of assembling the various components, from the paddle wheel to the interior rooms. While some guests noted the absence of minifigures and minor assembly challenges, the overall sentiment is that this set is a must-have for any LEGO enthusiast, especially those who love riverboats.
Summary created by AI from text of reviews reflecting recent feedback provided across different star ratings (includes incentivized reviews)
4.7
4.7 out of 5 stars
87 star ratings
4.7 out of 5 stars with 87 reviews
broad age appeal
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0% would recommend
1 recommendations
5 out of 5 stars
21 July, 2026
originally posted on LEGO
Awesome
Great build abd looks great as a center piece on my display cabinet.
Moose316
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5 out of 5 stars
5 May, 2026
originally posted on LEGO
Excellent build
Really enjoyed the build from start to finish. Amazing details. Looks fantastic on display. Clear, easy to follow instructions and no missing pieces. 10/10 for a great set
Kezzakraze
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5 out of 5 stars
28 March, 2026
originally posted on LEGO
River steamboat
Loved this build as a huge disney fan i saw this and it reminded me of the steamboat to magic kingdom. Fiddly bits here and the but overall a really enjoyable build
Chellerach
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5 out of 5 stars
28 March, 2026
originally posted on LEGO
Ahoy
I'm a dedicated modular fan, have started branching out,this is a beautiful & fun build. If your thinking maybe, do it I have a chef from pizzeria working casual, the band from jazz club gigs here, minifigz have it booked out a year in advance
Sandy
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5 out of 5 stars
22 February, 2026
originally posted on LEGO
Always love River Steamboats!
I finally got the Lego River Steamboat! I absolutely love/ building her. I also love seeing/ building all the little details they put into this beautiful set.
Blackcattwilight24
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5 out of 5 stars
13 February, 2026
originally posted on LEGO
Lego river steamboat
Really pleased with this item built in in a few days wasn't rushing
Fishingboy
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5 out of 5 stars
12 February, 2026
originally posted on LEGO
Very realistic
I bought this set after completing Neuschwanstein Castle. I'm very impressed with the realism of the boat. I've been on one in New Orleans and tis is a great reminder of that trip. The exterior is stunning and the interior details are great fun. Together with the working parts this is a great build.
Dawsgirl
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5 out of 5 stars
1 February, 2026
originally posted on LEGO
Mississippi River enjoyer
I’m a Mississippi River enjoyer and I loved this set. Anyone who has been on a steamboat or is a enjoyer of everything maritime related will enjoy this set.
RustyChicken095
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5 out of 5 stars
26 January, 2026
originally posted on LEGO
Where is the Captain?
Very nice build and not that difficult to complete. Attention to detail is amazing. A beautiful set. My only complaint. No minifigs. Where is the Captain of the steamer, and his mate, and a couple of exterior tables with passengers? Not one passenger looking out over the water. Otherwise, great value.
KnightSuperRug
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5 out of 5 stars
13 January, 2026
originally posted on LEGO
Loved It!
As an avid lego builder, I have to say I thoroughly enjoyed this set. It was well executed.
Selmer09
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5 out of 5 stars
17 December, 2025
originally posted on LEGO
Great build
Really enjoyed this one. May even take it apart and do it again!
Legokezzabuilder
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5 out of 5 stars
16 December, 2025
originally posted on LEGO
Really satisfying
Loved the build and the pride and joy of my collection. It looks brlliant in the lounge and everybody cooments on how well it looks. Incredible design, enjoyable build.
Bosco
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5 out of 5 stars
4 December, 2025
originally posted on LEGO
River Steam Boat Giveaway
The Bricksonian Youtube channel bought this Riversteam boat to give away to a Lucky Subscriber when we hit 1000 Subs! Lego Is amazing!!
Bricksonian
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5 out of 5 stars
3 December, 2025
originally posted on LEGO
Top boat
Very nice build and looks good on display. Worth the money in the sale.
Sean
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3 out of 5 stars
1 December, 2025
originally posted on LEGO
Fun Build
Very enjoyable build. Took a little over two months to put together. Some will say it is very repetitive but it is a LEGO set. One brick on another. I look forward to more like this
BillB62
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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.
Blaze2019
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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
Roberto
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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.
Barking Dog
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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.
Riasling
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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.
