---
title: "River Steamboat"
setNumber: "21356"
theme: "LEGO Ideas and CUUSOO"
year: 2025
pieces: 4090
priceUSD: 329.99
availability: "available"
ageRange: "18+"
designer: "Marina Stampoli"
ean: "5702017829234"
upc: "673419408301"
rating: 4.68
ratingCount: 22
completeness: "great"
verified: "2026-07-20T02:00:53.766Z"
url: "https://lpd.conde.sh/product/21356"
image: "https://www.lego.com/cdn/cs/set/assets/bltc976e2c6d3cedd87/21356_Prod_en-gb.png"
source: "LPD — collated from Rebrickable, lego.com and Brickset with per-field provenance"
---

# River Steamboat (21356)

> The LEGO® River Steamboat (set 21356) — a LEGO Ideas and CUUSOO set, 4,090 pieces, released 2025. $329.99 on lego.com, rated 4.3/5 across 2 sources.

The LEGO River Steamboat (set number 21356) is a LEGO LEGO Ideas and CUUSOO set, 4,090 pieces, released in 2025, designed by Marina Stampoli. It is currently available on lego.com at $329.99. Across 2 sources it holds a 4.3/5 rating from 22 ratings, as of 2026-07-20. Built, it measures 40 x 69 x 15 cm (15¾" x 27⅛" x 5⅞"). It is recommended for ages 18+. This data is collated from lego.com, Rebrickable and Brickset with per-field provenance, verified as of 2026-07-20.

## Questions & answers

**How many pieces is the LEGO River Steamboat (21356)?**

the LEGO River Steamboat (21356) has 4,090 pieces.

**Is the LEGO River Steamboat (21356) available, and how much does it cost?**

the LEGO River Steamboat (21356) is currently available on lego.com at $329.99.

**How is the LEGO River Steamboat (21356) rated?**

the LEGO River Steamboat (21356) holds a 4.3/5 rating across 2 sources (22 ratings, as of 2026-07-20): lego.com 4.68/5, brickset 4.3/5.

**Who designed the LEGO River Steamboat (21356)?**

the LEGO River Steamboat (21356) was designed by Marina Stampoli.

**How big is the LEGO River Steamboat (21356)?**

Built, the LEGO River Steamboat (21356) measures 40 x 69 x 15 cm (15¾" x 27⅛" x 5⅞").

**What age is the LEGO River Steamboat (21356) recommended for?**

the LEGO River Steamboat (21356) is recommended for ages 18+.

## Overview

- **Theme:** LEGO Ideas and CUUSOO
- **Pieces:** 4,090
- **Recommended age:** 18+
- **Released:** 2025
- **Designer:** Marina Stampoli
- **Data completeness:** great

## Pricing & availability

- **Current price:** $329.99 USD (lego.com)
- **Availability:** available
- **RRP:** $329.99 / £289.99 / €329.99

## Specifications

| Field | Value | Source |
| --- | --- | --- |
| Pieces | 4,090 | lego |
| Age range | 18+ | lego |
| Designer | Marina Stampoli | brickset |
| Dimensions | 40 x 69 x 15 cm (15¾" x 27⅛" x 5⅞") | brickset |
| EAN | 5702017829234 | brickset |
| UPC | 673419408301 | brickset |
| Released | 2025 | brickset |

## Reviews

- **Rating:** 4.3/5 across 2 sites (22 ratings, as of 2026-07-20, low confidence)
  - lego.com: 4.68/5 (0, 2026-07-20)
  - brickset: 4.3/5 (22, 2026-07-20)

## Data provenance

Each field and the source it was collated from:

- **rebrickable:** theme, minifigs, inventory
- **lego:** name, imageUrl, pieces, ageRange, price, availability, rating
- **brickset:** year, rating, msrp, ean, upc, designer, dimensions

## Links

- [LEGO.com product page](https://www.lego.com/en-us/product/river-steamboat-21356)
- [Building instructions](https://www.lego.com/en-us/service/building-instructions/21356)
- [LEGO Ideas and CUUSOO theme](https://www.lego.com/en-us/themes/lego-ideas-and-cuusoo)
- [rebrickable](https://rebrickable.com/sets/21356-1/)
- [brickset](https://brickset.com/sets/21356-1)
- [bricklink](https://www.bricklink.com/v2/catalog/catalogitem.page?S=21356-1)