FREE exclusive Mini Robots set*Shop now

FREE exclusive Mini Robots set*Shop now

Item 1 of 35
Item 1 of 35

Grand Piano

Average rating4.3out of 5 stars

Earn double VIP points on purchases 8-20 October.

Not a VIP?
Choking Hazard.
Small parts.
Price349,99 €

Temporarily out of stock

Shop more like this:
VIP Points

Symphony in precision

Watch a masterpiece in motion with 25 keys each connected to their own hammer.

Take the stage

Display an authentic reproduction with details worthy of a standing ovation.

Designed to perform

Connect the free Powered Up app to bring the piano to life in sight and sound.
Details to display and delight

Command performance

Use the motor and the free Powered Up app to start the show.

Auto-Play with your Smartphone

Watch and listen as the piano plays a song of your choice.

Self-Play with your Smartphone

Pretend to play along with a pre-recorded song you select.

Magic inside

Lift the top to view the intricate system of hammers and strings.

Orchestrated movement

Operate the adjustable bench and moving pedals.

Inspired by musicians

Exquisite details make this a true show piece for collectors.

Do you have a passion for music? Do you like to relax by focusing on a fun, hands-on project in your free time? If so, this incredible LEGO® Ideas Grand Piano model kit (21323) is just the creative activity for you.

Beautiful and playable
Feel the pride of building a sophisticated, brick-built version of a concert grand piano that you can actually play music with! Recreate the hammer action of each piano key, the moving pedal and authentic details such as the propped-open top lid and fallboard. Turn on the motor and then you are all set to play wonderful music – select user play on the free LEGO Powered Up app to play the notes yourself or activate auto play and just listen.

LEGO sets for your lifestyle
Take some time out and enjoy creating a LEGO musical masterpiece to display in your home or workplace. Part of a collection of LEGO building sets for adults, it makes a truly special birthday present or Christmas gift for yourself, the musician, piano player or hobbyist in your life.

  • Drum roll please as we proudly introduce the first-ever, playable LEGO® Grand Piano! Experience the hands-on pleasure of creating a highly sophisticated LEGO concert piano model and then play beautiful music with it.
  • The LEGO® Ideas Grand Piano (21323) has a removable 25-key keyboard, authentic hammer action, moving dampers and pedal, and motor. Combined with the LEGO Powered Up app, you can play a tune yourself or automatically.
  • Revel in the authentic design details of this beautiful model, from the top lid that can be propped up just like a real grand piano’s, to the opening fallboard and piano leg wheels, plus a height adjustable bench.
  • If you are looking for a creative DIY project, this 3,662-piece model building kit is ideal for you. So, take some time out and click your stress away with a rewarding challenge that will leave you feeling revitalized.
  • The piano measures over 8.5” (22.5cm) high, 12” (30.5cm) wide and 13.5” (35.5cm) deep when closed. A stylish item for your home or workplace, it also makes a cool gift for musicians, music-lovers, pianists and hobbyists.
  • To power up the grand piano’s self-playing function, you’ll need 6 AAA batteries (not included) and the free LEGO® Powered Up app – choose 'user play' to play the notes yourself or 'auto play' to listen to 1 of 4 songs.
  • Clear instructions help you to build with confidence and really enjoy the process, even if you are a LEGO® newcomer. Also included is a coffee-table-style booklet about this grand piano set’s fan designer and more.
  • This LEGO® Ideas building set for adults is part of a collection of inspiring model kits designed for the discerning hobbyist who relishes an immersive, hands-on DIY project.
  • Since 1958, LEGO® building bricks have met the highest industry standards, which ensures they are consistent, compatible and connect and pull apart easily every time.
  • LEGO® bricks and pieces are rigorously tested to meet exacting safety and quality standards, so you can be sure that this collectible grand piano model is as robust as it is beautiful.
Building Instructions
Grand Piano
  • Free standard 2 to 3 business day delivery on all merchandise orders over 55 €!
  • Express delivery available at checkout.
  • Custom parts orders are sent separately from merchandise and take additional time to process and deliver.
  • Unopened merchandise may be returned for a full refund within 180 days of receipt of your order.
Some exclusions apply. Visit our Deliveries and Returns page for more information.
Overall RatingAverage rating4.3out of 5 stars
(58 Reviews)
86% would recommend this product.


Overall Experience

Play ExperienceAverage rating4.1out of 5 stars
Level of DifficultyAverage rating3.6out of 5 stars
Value for MoneyAverage rating4.1out of 5 stars
Please note that by submitting a helpfulness vote on a review your IP address is collected and stored by our trusted third party service provider for the sole purpose of preventing multiple entries from the same IP address. To see how to control your personal data, please see our Privacy policy.


  • September 4th, 2020
    Average rating4out of 5 stars
    All the right notes
    | 35-44
    I would recommend this to a friend!
    Purchased for: Self
    This was overall a fun build. I have been having a bad run of luck lately with my last 5 builds missing pieces. Fortunately this go around there was only one missing piece. Once the model is completed it's pretty beautiful. I have two minor gripes. My gold bars that represent the strings more bent when packing. I've tried to bend them back but it causes a hammers on the strings to get stuck. Not that big a deal I can live with it. @Lego please consider adding a rubber band or something to slightly extend the Technic piece that stops the key motor from turning backwards and a certain point (resets the key position). Pressing the button application to reset the keys , the gears over rotate slightly because the stopping Technic pieces not long enough by a cm. So the keys are never flush when you reset them. Not being able to make the keys level detract from the beauty of this set. It seems like it would be a simple fix. I do hope they will add more music to the application.If there's ever a version 2 of this piano, would it be possible to add light sensors to every single key? By doing this the application can know exactly what key was pressed and what sound that key should make. However this may make the sent extremely expensive. There may not be enough room in the piano to have 25 individual sensors. The finished product is beautiful and display well. Even with the minor issues it was a lot of fun. In the end you won't be disappointed with with this model. Looking forward to my next challenge
    Play ExperienceAverage rating4out of 5 stars
    Level of DifficultyAverage rating3out of 5 stars
    Value for MoneyAverage rating4out of 5 stars
    Build Time: 12 days
    Building Experience: Advanced LEGO builder
    Was this helpful?
    45Grand Piano
  • October 12th, 2020
    Average rating4out of 5 stars
    Best Ideas set so far! A+++
    I would recommend this to a friend!
    Purchased for: Self
    This is definitely the best LEGO Ideas set they’ve released since the beginning. It is amazingly detailed all the way to the working piano key. It is very sturdy and super easy to move around. It looks amazing on display. People have told me that they mistook it for a real piano when seen in a picture. The biggest flaw is that the added sound effects are not well designed. Sometimes the keys won’t move when you use the Listen option. If you try to reset the keys, it may take a few tries before it works. What I also don’t like is that they keys make hardware noise when using the play option. And lastly, I constantly here a never ending beep when I use either option. If I had to judge it solely on the design and building experience, I would give it an A+. Maybe the app team could work on an update which would fix the bugs. But overall, I really enjoyed building it. I highly recommend it for any LEGO fan.
    Play ExperienceAverage rating4out of 5 stars
    Level of DifficultyAverage rating4out of 5 stars
    Value for MoneyAverage rating4out of 5 stars
    Build Time: 6 hrs 50 mins
    Building Experience: Expert LEGO builder
    Was this helpful?
    45Grand Piano
  • September 22nd, 2020
    Average rating4out of 5 stars
    Worth it
    | 25-34
    I would recommend this to a friend!
    Purchased for: Self
    The piano set is a fantastic build. It's hefty but structurally very sound. During the build there were a few moments I thought it would fall apart, but these elements are reinforced significantly by technic pieces. My only complaint relates to the software wherein the red reset button doesn't work reliably. Other than that, it was a fun experience.
    Play ExperienceAverage rating5out of 5 stars
    Level of DifficultyAverage rating4out of 5 stars
    Value for MoneyAverage rating4out of 5 stars
    Building Experience: Novice LEGO builder
    Was this helpful?
    45Grand Piano
  • August 8th, 2020
    Average rating5out of 5 stars
    OMG, best Lego set ever!
    | 25-34
    I would recommend this to a friend!
    Purchased for: Self
    This Grand Piano is AMAZING. How to describe it, if the full score is 100 I would give it a 120! The design is sophisticated and elegant, the piano it’s actually playable and the experience of putting it together is full of fun. I don’t know how to play piano myself but my husband does, he said the detail is stunning and he just simply couldn’t let go of it. Well done Lego, you made it again!
    Play ExperienceAverage rating5out of 5 stars
    Level of DifficultyAverage rating4out of 5 stars
    Value for MoneyAverage rating5out of 5 stars
    Build Time: 20 hrs
    Building Experience: Intermediate LEGO builder
    Was this helpful?
    55Grand Piano