LEGO 42201 Building Instructions - Deep-Sea Research Submarine

Technic • 2025

Where can I find LEGO 42201 Deep-Sea Research Submarine instructions?

LEGO 42201 Deep-Sea Research Submarine is a 413-piece LEGO Technic set released on 1 January 2025. This page provides a step-by-step building instruction video, with the featured guide divided into 3 timestamped sections. The page also links to LEGO's official building instructions for this set.

Official LEGO building instructions

Open the official LEGO instruction page to select and download the available PDF manual books.

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Instruction videos

LEGO 42201 set details

Set number	42201
Theme	Technic
Year	2025
Pieces	413
Model dimensions	6 in. (15 cm) high, 9.5 in. (25 cm) long and 6 in. (15 cm) wide
Release date	1 January 2025
UK MSRP	£34.99
US MSRP	$39.99
EU MSRP	€39.99

Set overview

LEGO 42201 Deep-Sea Research Submarine is a 413-piece LEGO Technic set released in 2025.

What does this instruction guide include?

The featured guide has 3 timestamped sections, including a direct jump to the parts list. Use the chapter links below to return to a specific stage without searching through the full video.

Video chapters

Jump directly to a section of this instruction video without leaving this page.

Notable features

a detailed cockpit