LEGO Assembly Square set

Assembly Square

The Assembly Square (10255-1) is a LEGO Modular Buildings set that was released in January 2017 and is due to retire on December 2023 .

This LEGO set has 4,002 pieces and had a RRP of $299.99 (£259.99 / 299.99€) which equates to a price per piece of 0.07c (0.06p / 0.07€) . It has gone down in value by -26.2% and now has a value of $221.28 based on average sale price over the last 6 months.

Price over time

New condition


This set contains 10 minifigures with a combined value of $26.05.

Images ©

Monthly sales

Value breakdown

The current value of Assembly Square is $221.28

The 10 minifigures in this set make up 12% of the total set value.

The Baby - White Body with Yellow Hands minfigure is the most valuable minifigure in this set who alone contributes 2% of the sets value .

Set pieces

The Assembly Square has 4002 pieces and is ranked 41 on the list of biggest LEGO sets ever made.

The most common colour in this set is Light Bluish Gray

The most common part in this set is Tile 1 x 2 with Groove

My collection

Set details

Name: Assembly Square

Theme: Modular Buildings

Set number: 10255-1

Status: Active

Pieces: 4,002

Minifigures: 10

Released: January 2017

Retired: December 2023 (estimated)

Shelf life: 6 years, 9 months

US Flag $299.99
GB Flag £259.99
EU Flag 299.99€
US Flag 0.075c
GB Flag 0.065p
EU Flag 0.075€

Set value

Confidence: High

Current value: $221.28

Increase from RRP: -26.2%

Where to buy

LEGO logo LEGO £259.99 Buy
Hamleys logo Hamleys Buy
Amazon logo Amazon Buy


Most expensive:
Baby - White Body with Yellow Hands
Least expensive:
% of set value:


Faded medal
41st biggest LEGO set ever made
Gold medal
1st biggest LEGO Modular Buildings set
Faded medal
1056th most valuable LEGO set
Faded medal
14th most valuable LEGO Modular Buildings set

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