How many pieces does the LEGO Assembly Square (10255-1) have?

The LEGO Assembly Square set (10255-1) contains 4002 pieces. It was released in 2017 as part of the LEGO Modular Buildings theme.

How can I find missing parts for LEGO set 10255-1?

On BrickMissing you can check which parts from the LEGO Assembly Square (10255-1) you already own. Add your LEGO collection and we'll show exactly which of the 4002 pieces you're missing and which you already have.

Can I build the LEGO Assembly Square with parts I already have?

Use BrickMissing's free parts checker to find out. Add LEGO sets you own to your collection and we'll cross-reference all 4002 parts to show your buildability percentage and which specific pieces you still need.

What theme is the LEGO Assembly Square from?

The LEGO Assembly Square (10255-1) belongs to the LEGO Modular Buildings theme. You can browse all Modular Buildings sets on BrickMissing to find more sets from this theme.

Assembly Square

10255-1 Modular Buildings 2017 4002 parts 0.6% catalog rarity Expert

The LEGO Modular Buildings Assembly Square 10255-1 celebrates ten years of the iconic theme with a grand, 4002-piece structure. Its easy-to-remove sections reveal a bustling interior: a ground level featuring a bakery, florist’s shop, and a café with outdoor seating. The middle floor houses a music store, a photo studio, and a detailed dental office. Ascend to the upper level for a dance studio and an apartment, complete with access to a rooftop terrace and barbecue. The exterior boasts a finely detailed sidewalk with a fountain and streetlamps, an elaborate facade with three buildable shop signs, and a spired tower. Eight minifigures and a baby figure populate the scene, ready to integrate into an expanded Modular Building street alongside sets like 10243 Parisian Restaurant.

Parts Inventory

🧱 4002 parts

Showing the first 12 rows of the parts list (4002 pieces in total). The full list loads automatically.

Color	Qty	LEGO price each
Medium Nougat	1×	€0,12 View at LEGO → View
White	2×	€0,50 View at LEGO → View
Black	4×	€0,12 View at LEGO → View
Yellow	8×	€0,12 View at LEGO → View
Light Bluish Gray	2×	€0,12 View at LEGO → View
Black	1×	€0,10 View at LEGO → View
Tan	73×	€0,13 View at LEGO → View
Black	2×	€0,13 View at LEGO → View
Dark Bluish Gray	2×	€0,12 View at LEGO → View
Light Bluish Gray	2×	€0,12 View at LEGO → View
Light Bluish Gray	3×	€0,41 View at LEGO → View
Dark Bluish Gray	2×	€0,29 View at LEGO → View

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Catalog rarity

How common are the parts in Assembly Square?

0.6%Low rarity

more commonless common

4 of 645 recorded part+color combinations appear in 3 or fewer sets in our catalog. This does not measure replacement availability or price.

Theme average

1.3%

All sets

6.7%

Least common in our catalog

Glass for Window 1 x 4 x 3 - Opening · Trans-Clear · only this set in our catalogMirror Front and White Paper Backing · White · 2 sets in our catalogTile 2 x 3 · Bright Light Blue · 2 sets in our catalog

How we calculate this →