Lego Assembly Square
Lego Assembly Square 10255 Lego Modular Lego

10255 LEGO Assembly Square. Snap up this Discounted LEGO Modular soon! Becoming a property tycoon may be a distant dream for some, or a fleeting Monopoly win for others, but for those who have been collecting or building LEGO Modular Buildings the dream can become a LEGO reality. 

First released in 2007, LEGO Modular Buildings were aimed at the Adult Fans of LEGO (AFOLs). It has become one of the most popular themes within LEGO Creator Expert (now known as LEGO Icons), with a new building released annually. From it’s foundations with Café on the Corner, the theme now includes a Pet Shop, Fire Brigade, Town Hall, Palace Cinema, Boutique Hotel and Downtown Diner to name a few, all can be linked together to create your own bustling town.

Set Details

To celebrate 10 years of LEGO Modular Buildings, Assembly Square was launched in 2017. It is a huge set with 4002 pieces and is the first modular building to be larger than a 32×32-stud base. It is bursting with detail, charming touches and the colours add a great deal of realism. The 8 Minifigures including a baker, dentist, photographer, LEGO fan and baby really bring the set to life. 

Set over 3 storeys the easily removable building sections reveal 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. It is not only the inside of the building that is remarkably detailed, the outside is just as much fun with detailed sidewalk with outdoor café furniture, fountain, streetlamps and a highly elaborate façade with beautifully detailed windows and doors, three buildable shop signs, spired tower and a decorative roofline.

Model Name Assembly Square
Model Number 10255
Theme Icons
Sub Themes Modular Buildings
Pieces 4002
Minifigures 8 + Baby
Column Launch Date January 2017
Current Status Current
Date Retired N/A
RRP £260

Investment Potential

The Assembly Square is a modular building within the Creator Expert theme and one we think will make a strong investment. It was launched with a very low price per piece of 4p, however this has risen to 6p a piece after 2 price rises, since it was launched in 2017, to the current RRP of £260. It is possible to buy at discount currently, taking back to almost its 2017 launch RRP and is a great investment at that price.

Launch RRP £170
Price Per Piece £0.06
Launch Price per piece £0.04
Current Value £260
Growth to Date N/A
Annualised Growth Since Retirement N/A
1st Year Value £286
Percentage Increase 10%
5th Year Value £389
Percentage Increase 50%
Expected Annual Growth 8%

Theme Analysis

There are 72 Icons sets across 10 very diverse sub themes, it’s a very hard theme to look at as a whole from an investment perspective. 

Some good examples of popular sets within the Icons theme are below:

Set Number Set Name Retired Date RRP Current Value Total Growth Annualised Growth
10247 Ferris Wheel December 2018 £150 £298 99% 19%
10252 Volkswagen Beetle December 2020 £75 £103 37% 19%
10268 Vestas Wind Turbine November 2020 £160 £190 19% 9%

Comparable Set Analysis

The modular buildings sub-theme within Icons has 10 sets including this one, dating back to 2013, however there are also another 7 Modular buildings that were classified within the Advanced Models theme from 2007 to 2013 which we think are also relevant. In total there are 13 retired sets across these two groups, and since retirement they have produced annualised growth of between 10% and 37% with an amazing average of 19%.

Set Number Set Name Retired Date RRP Current Value Total Growth Annualised Growth
10232 Palace Cinema November 2017 £120 £242 102% 15%
10251 Brick Bank November 2018 £120 £422 252% 37%
10218 Pet Shop November 2016 £120 £218 82% 10%
10185 Green Grocer November 2010 £100 £1285 1185% 24%


The modular buildings sub theme, from both the Icons theme and previously the Advanced Models theme have shown consistently strong growth across almost every set that it seems very straightforward to suggest that this set will have decent value appreciation once it is retired.

We would advise snapping up a set as soon as you can. Even better it can be purchased with a stunning 25% off at John Lewis which more than negates the recent increase in RRP. Head over to John Lewis and buy this cracking investment at 25% below its RRP whilst it is still available.