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black leaf Ships in product packaging

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LEGO Creator Expert Assembly Square 10255 Building Kit (4002 Pieces)

4.8 4.8 out of 5 stars 1,637 ratings
$394.99
FREE Returns
Includes $24.96 Amazon discount. Details
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Purchase options and add-ons

  • Build the amazing Assembly Square, featuring multiple shops, a dentist’s office, a dance studio, and sidewalk with outdoor café furniture
  • Modular model allows for a variety of display positions and ease of transport. Features an elaborate façade with beautifully detailed windows and doors and much more
  • Includes eight minifigures, a dentist, barista, baker, florist, music store assistant, dancer, photographer and a LEGO fan, plus baby figure
  • LEGO Creator Expert building toys are compatible with all LEGO construction sets for creative building
  • Measures over 13” high, 14” wide and 9” deep
  • 4002 pieces – For boys and girls ages 16 and up
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LEGO Creator Expert Assembly Square 10255 Building Kit (4002 Pieces)
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LEGO Creator Expert Assembly Square 10255 Building Kit (4002 Pieces)

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Product Description

Take a trip to the amazing assembly square, developed to celebrate ten years of LEGO modular buildings, featuring a wealth of unsurpassed, intricate details and hidden surprises. Easy-to-remove building sections provide access to the highly detailed interior, comprising a ground level with a bakery, florist's shop and Café, a middle level with a music store, photo Studio and dental office, and an upper-level dance Studio and apartment with access to a rooftop terrace with barbecue. The exterior of the building features a detailed sidewalk with outdoor Café furniture, fountain, streetlamps and a highly elaborate facade with beautifully detailed windows and doors, three buildable shop signs, spired tower and a decorative roofline. Includes eight mini figures and a baby figure.

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Top Brand: LEGO

Highly Rated
100K+ customers rate items from this brand highly
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From the manufacturer

Inspire and develop the builders of tomorrow
Kids are born curious. Let LEGO play be your child’s guide on their creative journey.

Learning through play

Kids are born curious. Let LEGO play be your child’s guide on their creative journey.

The name LEGO comes from the Danish leg godt which means play well

Kids are creative by nature. With the power of play, they can overcome any challenge.

Kids learn to trust their skills and develop their imagination as they build, unbuild, and rebuild

Our heritage

The name LEGO comes from the Danish "Leg Godt" which means "Play Well."

Importance of play

Kids are creative by nature. With the power of play, they can overcome any challenge.

Power of building

Kids learn to trust their skills and develop their imagination when they build, unbuild, and rebuild.

Imagine what they can become. Your LEGO bricks can be played with for generations.
Pass on your pre-loved LEGO bricks at LEGO.com/Replay

What's in the box

  • LEGO Building Elements

    • Product guides and documents

    User Guide (PDF)

    Looking for specific info?

    Customer reviews

    4.8 out of 5 stars
    4.8 out of 5
    1,637 global ratings

    Customers say

    Customers like the quality, design, and detail of the toy building block. For example, they mention it's a great addition to the Lego city, and the details are amazing, fantastic, and intricate. That said, some complain about missing parts. Opinions are mixed on the value.

    AI-generated from the text of customer reviews

    71 customers mention71 positive0 negative

    Customers are satisfied with the design of the toy building block set. They mention that the small details make it very nice, unique, and one of the nicest sets for adults who make lego. They also appreciate the architecture and fun design elements. Overall, customers are happy and surprised with the set.

    "...It has so many intricate details. It is just amazing when looking at it. It is definitely a more advanced build...." Read more

    "This modular build was really good and focusing. It’s like you are getting three modular buildings in one package...." Read more

    "Overall this is a fun build with good minifigs and interesting building experience.Pros:1. Large and deep build with lots of pieces...." Read more

    "...They were pretty happy and surprised with the set." Read more

    46 customers mention40 positive6 negative

    Customers find the toy building block set fun to build, with fun little finds. They say it's a perfect project to keep the whole family busy and full of excitement. Customers also say the build instructions are amazingly easy.

    "...But when I got it it was in pristine condition and ready to be put together. It was something I had wanted to go along with my other buildings...." Read more

    "...This would be a perfect project to keep a whole family busy because it would give each member plenty of pieces to put together." Read more

    "Overall this is a fun build with good minifigs and interesting building experience.Pros:1. Large and deep build with lots of pieces...." Read more

    "Grandson is 11 years old & he puts these together with no problem. He also told me he wants the full set of buildings!" Read more

    43 customers mention43 positive0 negative

    Customers find the details of the toy building block amazing, fantastic, and adorable. They also say the building is intricate inside and the bakery and cafe are detailed. Customers also say it's the best 3D puzzles ever and an interesting building experience.

    "...Each store very different with nice interiors...." Read more

    "I love the way this lego set looks. It has so many intricate details. It is just amazing when looking at it. It is definitely a more advanced build...." Read more

    "...Good minifigs (with classic standard grin heads).3. Lots of details for various rooms, especially the room with lego micro builds.4...." Read more

    "Loved putting this one together. There is so much detail and I love that each floor is easily removed so that you can see all of the details on the..." Read more

    23 customers mention16 positive7 negative

    Customers are mixed about the value of the toy building block. Some mention it's detailed and engaging, and worth every penny. They appreciate the many pieces for the price. However, some customers feel it'd be better spent on other toys.

    "...After 14ish hours put in it’s worth the challenge...." Read more

    "I was really excited to find this retired set for a very reasonable price. I was really disappointed when it arrived...." Read more

    "...2. More expensive than other modular buildings (but bigger)3. One missing piece, but easily get it shipped from lego.com" Read more

    "Price is right with piece count, actually it's very good. Great details throughout, I'd designed it like this, wouldn't change a thing. Buy it!" Read more

    15 customers mention12 positive3 negative

    Customers like the condition of the toy building blocks. They say it's an incredibly nice build, arrived on time, and in excellent condition.

    "...But when I got it it was in pristine condition and ready to be put together. It was something I had wanted to go along with my other buildings...." Read more

    "Amazing build! When I looked on the Lego website to buy this, it was back ordered until July...." Read more

    "As usual any Lego products are well made and fun to put together. I appreciate the quickness of its deliveryfrom Amazon. Our grandson loves it." Read more

    "...The box is in poor condition and was previously opened and retaped shut. I hope everything is included. The box is also torn in several places...." Read more

    11 customers mention11 positive0 negative

    Customers are satisfied with the quality of the toy building block. They mention that it's a great addition to the Lego city, and an awesome Lego creation. Customers also say that the modular buildings are fun to build and help make their Lego city bigger.

    "I liked everything and also it helped me make my lego city bigger" Read more

    "First of all, this set is great! Awesome modular building for the rest of your modular buildings...." Read more

    "...The modular buildings are so much fun to build...." Read more

    "I love legos, and this was another awesome lego creation...." Read more

    9 customers mention9 positive0 negative

    Customers find the toy building block set massive and fun to build. They also appreciate the architectural details and high number of minifigures. Customers say the set fits perfectly in their LEGO City and the different sizes and shapes are a good exercise.

    "...Pros:1. Large and deep build with lots of pieces.2. Good minifigs (with classic standard grin heads).3...." Read more

    "...It fit perfectly in my lego city. There was about 7 bags for step 5 so it was hard finding the brick in the huge pile of them...." Read more

    "...Plenty of architectural details, and high number of minifigurines. make it the centerpiece or your Lego collection." Read more

    "...THE BRIGHT PIECES ARE EASIER TO SEE AND THE DIFFERENT SIZES AND SHAPES ARE A GOOD EXERCISE FOR MY VISUAL ACUITY. DEFINITELY A GOOD BRAIN EXERCISE!!!" Read more

    12 customers mention0 positive12 negative

    Customers are dissatisfied with the missing parts in the toy building blocks. They mention that there were many missing pieces in the last set of bags, and some of the blocks were all over.

    "...More expensive than other modular buildings (but bigger)3. One missing piece, but easily get it shipped from lego.com" Read more

    "...This set was missing four of the 4211394 pieces. Luckily Lego.com replaces them but in case you want to get ahead, that is the piece number." Read more

    "It was very fun but there was lots of missing bricks but I had them in my lego bins. It fit perfectly in my lego city...." Read more

    "...Only on set 2 and there are already a few missing pieces. I had to look for alternative pieces from other sets...." Read more

    The Square
    5 Stars
    The Square
    This modular build was really good and focusing. It’s like you are getting three modular buildings in one package. If you are into modular building, I suggest you get this before the price goes up since it’s a now hard to find item.
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    Top reviews from the United States

    Mike Spans
    5.0 out of 5 stars Very good Lego set
    Reviewed in the United States on March 15, 2024
    Verified Purchase
    Very happy with this set.
    Helpful
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    Mike G
    5.0 out of 5 stars Best kit to date
    Reviewed in the United States on March 22, 2024
    Verified Purchase
    Have built many creator expert kits and this the most fun. Each store very different with nice interiors. Took a while to figure out the exterior windows made up of long pieces of plastic that snap together and install.
    Found snapping one section at a time while installing much easier to putting all together and then trying to install the entire piece.
    Helpful
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    Michelle English
    5.0 out of 5 stars Great set of Legos
    Reviewed in the United States on April 15, 2024
    Verified Purchase
    I ordered this set knowing I was overpaying but that was on me. But when I got it it was in pristine condition and ready to be put together. It was something I had wanted to go along with my other buildings. It was not easy to assemble since it was expert but it was fun to assemble. So I would say this is an adult piece not for the younger crowd, that is what i mean by not easy.I love it and can't wait to start putting it together, so I can not account for it having all its pieces but I am assuming it does. Lego's rocks. But I did not get this from the lego company, I got it from an online seller who was swift in shipping, had a great product, although a steep price. :) But those willing to pay , well its on us, right.
    Helpful
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    Lucy Boyter
    5.0 out of 5 stars Assembly square
    Reviewed in the United States on February 3, 2023
    Verified Purchase
    I love the way this lego set looks. It has so many intricate details. It is just amazing when looking at it. It is definitely a more advanced build. You would have to open up several bags per section and dig through a giant pile of pieces. There was a lot of pieces to put together on many of the steps. This would be a perfect project to keep a whole family busy because it would give each member plenty of pieces to put together.
    Customer image
    Lucy Boyter
    5.0 out of 5 stars Assembly square
    Reviewed in the United States on February 3, 2023
    I love the way this lego set looks. It has so many intricate details. It is just amazing when looking at it. It is definitely a more advanced build. You would have to open up several bags per section and dig through a giant pile of pieces. There was a lot of pieces to put together on many of the steps. This would be a perfect project to keep a whole family busy because it would give each member plenty of pieces to put together.
    Images in this review
    Customer image
    Customer image
    7 people found this helpful
    Helpful
     Report
    Dawn A. Douglas
    5.0 out of 5 stars The Square
    Reviewed in the United States on February 2, 2024
    Verified Purchase
    This modular build was really good and focusing. It’s like you are getting three modular buildings in one package. If you are into modular building, I suggest you get this before the price goes up since it’s a now hard to find item.
    Customer image
    Dawn A. Douglas
    5.0 out of 5 stars The Square
    Reviewed in the United States on February 2, 2024
    This modular build was really good and focusing. It’s like you are getting three modular buildings in one package. If you are into modular building, I suggest you get this before the price goes up since it’s a now hard to find item.
    Images in this review
    Customer image
    Customer image
    One person found this helpful
    Helpful
     Report
    Arietta
    5.0 out of 5 stars Wish I could give this build more than 5 stars !! ⭐️
    Reviewed in the United States on November 23, 2023
    Verified Purchase
    This set was a great challenge. With a little over 4,000 pieces I underestimated how detailed this build would be. After 14ish hours put in it’s worth the challenge.

    Would highly recommend to Lego Lovers (added the Bookstore once done & it really puts it all together).

    Included pictures of some lil details that were added in :)
    Customer image
    Arietta
    5.0 out of 5 stars Wish I could give this build more than 5 stars !! ⭐️
    Reviewed in the United States on November 23, 2023
    This set was a great challenge. With a little over 4,000 pieces I underestimated how detailed this build would be. After 14ish hours put in it’s worth the challenge.

    Would highly recommend to Lego Lovers (added the Bookstore once done & it really puts it all together).

    Included pictures of some lil details that were added in :)
    Images in this review
    Customer image Customer image Customer image Customer image Customer image Customer image Customer image Customer image Customer image
    Customer imageCustomer imageCustomer imageCustomer imageCustomer imageCustomer imageCustomer imageCustomer imageCustomer image
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    Dave
    5.0 out of 5 stars Fun build
    Reviewed in the United States on November 8, 2020
    Verified Purchase
    Overall this is a fun build with good minifigs and interesting building experience.
    Pros:
    1. Large and deep build with lots of pieces.
    2. Good minifigs (with classic standard grin heads).
    3. Lots of details for various rooms, especially the room with lego micro builds.
    4. No sticker, all printed bricks (modular rocks)
    5. Good display & play set

    Minor cons:
    1. The top floor kitchen area of the middle building is not covered, it would be nice if that area is covered.
    2. More expensive than other modular buildings (but bigger)
    3. One missing piece, but easily get it shipped from lego.com
    4 people found this helpful
    Helpful
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    nirakm
    5.0 out of 5 stars Exactly what they wanted
    Reviewed in the United States on December 26, 2023
    Verified Purchase
    This was exactly what my son and his girlfriend were looking for. They were pretty happy and surprised with the set.
    Helpful
     Report

    Top reviews from other countries

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    Adrian
    5.0 out of 5 stars Fun!
    Reviewed in Canada on April 24, 2023
    Verified Purchase
    This set is awesome and super cute. I really enjoyed working with it.
    Report
    Emma
    5.0 out of 5 stars Another amazing model for m6 expert Lego building son. Model excellent
    Reviewed in the United Kingdom on December 30, 2022
    Verified Purchase
    Amazing model. Just as advertised and looks outstanding. Worth every penny tosee my sons face, 28 but still a avid Lego fan. He’s expert builder which you need to be for these models.
    Report
    Marlene Reyes
    5.0 out of 5 stars Me encantó
    Reviewed in Mexico on January 28, 2021
    Verified Purchase
    Está muy lindo y muy detallado, lo encontré a un precio ligeramente menor que el oficial, aún cuando el set ya tiene varios años de haber salido
    One person found this helpful
     Report
    helen round
    5.0 out of 5 stars The address was auto corrected, therefore I received the present after Christmas, not good!
    Reviewed in Australia on January 20, 2020
    Verified Purchase
    It was present, my liked it
    Report
    Alex
    5.0 out of 5 stars Awesome
    Reviewed in Canada on November 11, 2022
    Verified Purchase
    Loved it, was a super fun build, and I can't wait to purchase another 4000+ piece set in the near future. Definitely recommend for any avid LEGO builders, you won't be disappointed.
    Report