LEGO Robot Inventor (51515-1)
The Robot Inventor (51515-1) is a LEGO Mindstorms set that was released in October 2020 and retired in July 2023 with a shelf life of 2 years and 9 months 16 days.
This LEGO set has 949 pieces and had a RRP of $359.99 (£314.99 / 359.99€) which equates to a price per piece of 0.38c (0.33p / 0.38€). Since it retired it has grown in value by 62.4% and now has a value of $584.54 based on average sale price over the last 6 months.
Price over time
View price history table
| Month | Avg Price | Sales |
|---|---|---|
| Dec 21 | $344.48 | 4 |
| Jan 22 | $443.92 | 4 |
| Feb 22 | $408.41 | 9 |
| Mar 22 | $413.74 | 2 |
| Apr 22 | $507.85 | 4 |
| May 22 | $497.19 | 4 |
| Jun 22 | $477.66 | 8 |
| Jul 22 | $427.94 | 4 |
| Aug 22 | $536.26 | 2 |
| Sep 22 | $545.14 | 29 |
| Oct 22 | $546.91 | 9 |
| Nov 22 | $527.38 | 6 |
| Dec 22 | $490.09 | 8 |
| Jan 23 | $561.12 | 30 |
| Feb 23 | $538.03 | 5 |
| Mar 23 | $584.20 | 1 |
| Apr 23 | $571.77 | 1 |
| May 23 | $477.66 | 3 |
| Jun 23 | $555.79 | 5 |
| Jul 23 | $546.91 | 17 |
| Aug 23 | $529.16 | 11 |
| Sep 23 | $614.39 | 9 |
| Oct 23 | $667.66 | 4 |
| Nov 23 | $630.37 | 9 |
| Dec 23 | $672.99 | 15 |
| Jan 24 | $712.05 | 25 |
| Feb 24 | $706.72 | 5 |
| Mar 24 | $770.65 | 8 |
| Apr 24 | $733.36 | 2 |
| May 24 | $713.83 | 4 |
| Jun 24 | $756.44 | 2 |
| Jul 24 | $740.46 | 0 |
| Aug 24 | $726.26 | 1 |
| Sep 24 | $820.37 | 1 |
| Oct 24 | $728.03 | 2 |
| Nov 24 | $806.16 | 4 |
| Dec 24 | $832.80 | 2 |
| Jan 25 | $781.30 | 0 |
| Feb 25 | $731.58 | 2 |
| Mar 25 | $701.40 | 3 |
| Apr 25 | $779.53 | 2 |
| May 25 | $813.27 | 3 |
| Jun 25 | $1,060.09 | 2 |
| Jul 25 | $918.03 | 0 |
| Aug 25 | $777.75 | 2 |
| Sep 25 | $767.10 | 0 |
| Oct 25 | $758.22 | 3 |
| Nov 25 | $712.05 | 0 |
| Dec 25 | $667.66 | 1 |
| Jan 26 | $813.27 | 5 |
Minifigures
This set contains 0 minifigures.
Monthly sales
We have recorded 282 sales of the Robot Inventor set since Dec 21. The chart below shows the number of recorded sales per month, which can help indicate the popularity and availability of this set on the secondary market.
My collection
Set details
Name: Robot Inventor
Theme: Mindstorms
Set number: 51515-1
Status: Retired
Retired for: 2 years, 9 months
Pieces: 949
Minifigures: 0
Oct 15, 2020
Oct 15, 2020
Oct 15, 2020
Jul 31, 2023
Jul 31, 2023
Jul 31, 2023
Shelf life: 2 years, 10 months
$359.99
£314.99
359.99€
0.379c
0.332p
0.379€
Set value
Confidence: High
Current value: $584.54
Increase from RRP: 62.4%
Yearly ROI: 22.7%
Set colors
The Robot Inventor has 949 pieces and is ranked 969 on the list of biggest LEGO sets ever made.
The most common colour in this set is Black
The most common part in this set is Technic, Pin with Friction Ridges
Stats
Frequently Asked Questions
How much is the LEGO Robot Inventor (51515-1) worth?
The LEGO Robot Inventor is currently worth $584.54 based on the average sale price over the last 6 months. The original retail price was $359.99.
How many pieces are in the LEGO Robot Inventor?
The LEGO Robot Inventor (51515-1) contains 949 pieces, making it the 969th biggest LEGO set ever made.
Is the LEGO Robot Inventor retired?
Yes, the LEGO Robot Inventor has been retired. It was retired in July 2023 and is no longer available from LEGO directly. You can find it on the secondary market through sites like BrickLink and eBay.
When was the LEGO Robot Inventor released?
The LEGO Robot Inventor (51515-1) was released in October 2020 as part of the Mindstorms theme.
Is the LEGO Robot Inventor a good investment?
Since retirement, the LEGO Robot Inventor has increased in value by 62.4% from its original retail price. That is a yearly return of approximately 22.7%.
Price data last updated: Jan 26
