Home LEGO® 21323 Ideas Grand Piano
[box-front] A Brick Apart LEGO Ideas Grand Piano set box featuring a black brick-built concert piano and adjustable bench on white background.
[box-back] A Brick Apart LEGO Ideas Grand Piano set box back featuring a black brick-built concert piano and adjustable bench on white background.
[box-set] A Brick Apart LEGO Ideas Grand Piano set featuring a black brick-built concert piano, adjustable bench, and sheet music.
[built-white] A Brick Apart LEGO Ideas Grand Piano set with a black brick-built body, open lid, and smartphone mounted on the keys.
[built-detail] A Brick Apart LEGO Ideas Grand Piano model with black exterior, white keys, and gold interior details.
[built-detail] A Brick Apart LEGO Ideas Grand Piano showing the internal hammer action mechanism and electronic components
[built-detail] A Brick Apart LEGO Powered Up motor and battery box component for the Ideas Grand Piano set on a white background.
[built-detail] A Brick Apart LEGO Ideas Grand Piano height-adjustable black brick-built bench with a cushioned seat design.
[built-angle] A Brick Apart LEGO Ideas Grand Piano model in black with a realistic keyboard, pedal, and detailed brick construction.
[built-detail] A Brick Apart LEGO Ideas Grand Piano model with black casing, white keys, and authentic moving hammer action mechanism.
[lifestyle-person] A Brick Apart LEGO Ideas Grand Piano set with a woman placing her hand on a stack of books next to the model.
[lifestyle-person] A Brick Apart LEGO Ideas Grand Piano set with a smartphone displaying sheet music on the stand, being played by hand.
[lifestyle-shelf-built] A Brick Apart LEGO Ideas Grand Piano model with a black finish, open lid, and smartphone mounted on the music stand.
[lifestyle-shelf-box] A Brick Apart LEGO Ideas Grand Piano set box showing the playable black brick-built concert piano and adjustable bench.
[built-blue-black] A LEGO-style grand piano built from black and gray bricks, with white and black keys, an open lid, and a yellow interior, photographed against a blue background with a black floor.
[box-front] A Brick Apart LEGO Ideas Grand Piano set box featuring a black brick-built concert piano and adjustable bench on white background.
[box-back] A Brick Apart LEGO Ideas Grand Piano set box back featuring a black brick-built concert piano and adjustable bench on white background.
[box-set] A Brick Apart LEGO Ideas Grand Piano set featuring a black brick-built concert piano, adjustable bench, and sheet music.
[built-white] A Brick Apart LEGO Ideas Grand Piano set with a black brick-built body, open lid, and smartphone mounted on the keys.
[built-detail] A Brick Apart LEGO Ideas Grand Piano model with black exterior, white keys, and gold interior details.
[built-detail] A Brick Apart LEGO Ideas Grand Piano showing the internal hammer action mechanism and electronic components
[built-detail] A Brick Apart LEGO Powered Up motor and battery box component for the Ideas Grand Piano set on a white background.
[built-detail] A Brick Apart LEGO Ideas Grand Piano height-adjustable black brick-built bench with a cushioned seat design.
[built-angle] A Brick Apart LEGO Ideas Grand Piano model in black with a realistic keyboard, pedal, and detailed brick construction.
[built-detail] A Brick Apart LEGO Ideas Grand Piano model with black casing, white keys, and authentic moving hammer action mechanism.
[lifestyle-person] A Brick Apart LEGO Ideas Grand Piano set with a woman placing her hand on a stack of books next to the model.
[lifestyle-person] A Brick Apart LEGO Ideas Grand Piano set with a smartphone displaying sheet music on the stand, being played by hand.
[lifestyle-shelf-built] A Brick Apart LEGO Ideas Grand Piano model with a black finish, open lid, and smartphone mounted on the music stand.
[lifestyle-shelf-box] A Brick Apart LEGO Ideas Grand Piano set box showing the playable black brick-built concert piano and adjustable bench.
[built-blue-black] A LEGO-style grand piano built from black and gray bricks, with white and black keys, an open lid, and a yellow interior, photographed against a blue background with a black floor.
Retired New Sealed Mint Box

LEGO® 21323 Ideas Grand Piano

Sale price $669.99
In stock
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Key Features and Benefits:

  • First-ever playable LEGO Grand Piano with motorized 25-key keyboard and authentic hammer action mechanics
  • Fully functional through LEGO Powered Up app with user play mode or auto play featuring 4 pre-loaded songs
  • Impressive 3,662-piece build delivers an immersive, rewarding creative experience for adult collectors
  • Museum-quality display piece measuring 22.5cm high × 30.5cm wide × 35.5cm deep with concert grand authenticity
  • LEGO Ideas Project No. 31 from fan designer SleepyCow—a rare, limited-availability collectible with significant theme value

Build and play the iconic LEGO® 21323 Grand Piano—a 3,662-piece Ideas set with motorized functionality, authentic hammer action, and display-worthy design for adult collectors.

[box-front] A Brick Apart LEGO Ideas Grand Piano set box featuring a black brick-built concert piano and adjustable bench on white background.

LEGO® 21323 Ideas Grand Piano

$669.99

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Enjoy the Build

[box-front] A Brick Apart LEGO Ideas Grand Piano set box featuring a black brick-built concert piano and adjustable bench on white background.
LEGO® 21323 Ideas Grand Piano
Sale price$669.99

Build and play the first-ever LEGO® Ideas Grand Piano (21323), a sophisticated 3,662-piece musical masterpiece designed for adult collectors and music enthusiasts. This premium set features a fully functional, playable concert grand piano with authentic hammer action, moving pedals, and motorized self-play capability through the LEGO Powered Up app.

Playable Musical Features
  • Removable 25-key keyboard with authentic hammer action mechanics
  • Moving dampers and pedal system that recreates real piano functionality
  • Electric motor with LEGO Powered Up app integration for user play or auto play with 4 pre-loaded songs
  • Propped-open lid and opening fallboard for authentic concert grand appearance
  • Height-adjustable bench and leg wheels for complete display realism
Collector Display Appeal

Measuring 22.5cm high, 30.5cm wide, and 35.5cm deep when closed, this striking architectural piece commands attention in any room. The set represents LEGO Ideas Project No. 31, born from fan designer SleepyCow's vision, making it a significant addition to any serious LEGO collection. With only limited retail availability remaining, this Ideas set has become increasingly sought after by collectors worldwide.

Premium Building Experience

This adult-focused set delivers an immersive 3,662-piece build experience with clear instructions and an included coffee-table booklet documenting the fan designer's journey. The meticulous brick construction captures the elegance of a real grand piano while delivering genuine playability—a rare combination in LEGO design.

Perfect for musicians, LEGO collectors, display builders, and those seeking a meaningful creative project that transcends typical building sets.
  • Features a fully motorized, playable 25-key keyboard with authentic hammer action that recreates the mechanical precision of a concert grand piano.
  • Includes moving dampers, pedal system, and propped-open lid that capture the intricate details and functionality of a real grand piano.
  • Delivers an immersive 3,662-piece build experience designed specifically for adult collectors seeking a sophisticated, hands-on creative project.
  • Integrates with the LEGO Powered Up app to enable both manual user play and automated performance with four pre-loaded musical compositions.
  • Measures 22.5cm high, 30.5cm wide, and 35.5cm deep when closed, making it an impressive display centerpiece for home or professional spaces.

Theme: Ideas

Pieces: 3662

Minifigures: 0

Age Range: 18+