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Build-A-Bob

3826-1·SpongeBob SquarePants·2006·1 minifig·119 parts

Used Avg

$108.45

New Avg

$299.69

Add to your inventory Scan the minifigs

About Build-A-Bob

Build-A-Bob (3826-1) is a LEGO SpongeBob SquarePants set released in 2006, currently averaging $108.45 used on BrickLink. It comes with 1 minifigure worth a combined $20.43. The set has retired from retail, so secondary market is the only option. The full parts inventory runs 119 pieces.

Part-out value

The minifigures make up only 19% of this set's value ($20.43 out of $108.45). The bulk of the value is in the parts or the set being complete. Sell it as a complete set if possible.

Seller notes

Sealed copies sell for $299.69 vs $108.45 used — a 176% premium. If you have this set new in sealed box (NISB), price it accordingly.
Plankton with Sticker ($20.43) is the most valuable minifig in this set. If you're buying this set secondhand, check that this figure is included — it's often the first one pulled by sellers who part out.
This is a vintage set (2006). Condition of the box and instructions significantly affects value. A complete set with original box and instructions can sell for well above the average.

Minifigures in Build-A-Bob (1)

Plankton with Sticker

bob024s$20.43

Parts (119)

Brick 4 x 6

×2

Brick 2 x 2 Corner

×4

Tile, Modified 1 x 2 Grille with Bottom Groove

×3

Tile 1 x 4 with Light Switch, 2 White Gauges and Train Throttle Pattern

Slope, Inverted 75 2 x 1 x 3

×32

Brick 2 x 6

×2

Brick 2 x 6

×7

Brick 1 x 16

×2

Tile, Modified 1 x 1 with Clip

×2

Brick, Round Corner 4 x 4 Full Brick

×4

Brick, Modified 2 x 2 with Pins and Axle Hole

×2

Brick 2 x 4

×2

Brick 2 x 2

×10

Brick 2 x 2

×4

Brick 2 x 2

×3

Brick 1 x 2

×24

Brick 1 x 2

×6

Brick 1 x 2

×7

Brick 1 x 2

×6

Brick 1 x 1

×18

Brick 1 x 1

×8

Brick 1 x 6

×2

Brick 1 x 6

×26

Brick 1 x 6

×2

Brick 1 x 4

×5

Brick 1 x 4

×14

Brick 1 x 4

×8

Plate 2 x 4

×2

Plate 2 x 2

×4

Plate 1 x 2

×3

Plate 1 x 2

×3

Plate 4 x 4

×2

Plate 4 x 6

×4

Plate 6 x 10

×3

Plate 2 x 8

×2

Plate, Round Corner 3 x 3

×4

Slope 45 2 x 2

×4

Slope 45 2 x 2 with Black and Green Radar Screen, Digital '38', Buttons, and Dial Pattern

Slope 45 2 x 1

×4

Panel 1 x 4 x 1

Brick, Modified 1 x 4 with Studs on Side

×3

Plate, Round Corner 4 x 4

×4

Brick, Round Corner 2 x 2 Macaroni with Stud Notch

×8

Tile 2 x 2

×2

Tile 1 x 2

×2

Tile 1 x 2 with Computer Keyboard Standard Pattern

Plate, Modified 2 x 3 with Hole

Technic, Axle and Pin Connector Angled #1

Technic, Axle and Pin Connector Angled #2 - 180 degrees

Technic, Axle 2L Notched

Technic, Gear 20 Tooth Double Bevel

Technic, Gear 12 Tooth Double Bevel

×2

Technic, Gear 36 Tooth Double Bevel

Arch 1 x 6 x 2 - Thick Top with Reinforced Underside

Minifigure, Head (Plain)

×2

Slope, Inverted 45 2 x 2 with Flat Bottom Pin

×10

Plate 1 x 6

×6

Plate 1 x 6

Technic, Brick 1 x 2 with Hole

×8

Technic, Axle 4L

Plate 1 x 4

Technic, Axle 10L

×2

Technic, Axle 1L with Pin without Friction Ridges with Round Hole

×2

Plate 2 x 6

×4

Plate 2 x 6

×3

Sticker Sheet for Set 3826 - (56215/4294107)

Technic, Brick 1 x 6 with Holes

Minifigure, Headgear Hat, Chef Toque

×4

Hinge Brick 1 x 2 Base

Hinge Brick 1 x 2 Top Plate

Brick, Round 2 x 2 with Axle Hole

×6

Brick, Round 2 x 2 with Axle Hole

×6

Brick, Round 2 x 2 with Axle Hole

×3

Plate 6 x 6

×2

Dish 8 x 8 Inverted (Radar) with Black Circle on Medium Blue Circle Eye Pattern

×2

Plate, Round 2 x 2 with Axle Hole

×4

Plate, Round 2 x 2 with Axle Hole

×3

Plate, Round 2 x 2 with Axle Hole

×2

Brick, Modified 1 x 1 with Headlight

×6

Plate, Round 1 x 1

×2

Plate, Round 1 x 1

×2

Plate, Modified 1 x 1 with Light Attachment - Thick Ring

×2

Rubber Band / Belt Holder 2 x 6 x 2 1/3

Wedge 4 x 2 Right

×4

Wedge 4 x 2 Left

×4

Wedge, Plate 4 x 2 Right

×2

Wedge, Plate 4 x 2 Left

×2

Slope, Curved 6 x 1 with 2 Studs

×4

Technic Bush 1/2 Smooth

×3

Wedge, Plate 3 x 2 Right

×2

Wedge, Plate 3 x 2 Left

×2

Slope, Curved 6 x 2

×2

Hinge Plate 1 x 2 Locking with 1 Finger on End (Undetermined Type)

×2

Hinge Plate 1 x 2 Locking with 2 Fingers on End

×4

Antenna Small Base with Black Lever (4592 / 4593)

×2

Antenna Small Base with Black Lever (4592 / 4593)

×7

Antenna Small Base with Black Lever (4592 / 4593)

×3

Tap 1 x 1 with Hole in Nozzle End

Dish 2 x 2 Inverted (Radar)

Technic, Brick Modified 2 x 2 with Axle Hole, Rotation Joint Ball Half Vertical, and Fist

×2

Technic, Brick Modified 2 x 3 with Pin Holes, Rotation Joint Ball Half Horizontal, and Rotation Joint Socket

×2

Technic Rotation Joint Ball Loop with 2 Perpendicular Pins with Friction

×4

Brick, Round Corner 4 x 4 Macaroni with 3 Studs

×4

Technic, Brick Modified 2 x 2 with Pin Hole and Rotation Joint Socket

×2

Plate, Modified 1 x 2 with Bar Handle on Side - Closed Ends

Brick, Round 2 x 2 Dome Top

Slope, Curved 2 x 4 x 1 1/3 with 4 Recessed Studs

×2

Slope, Curved 2 x 1 x 1 1/3 with Recessed Stud

×4

Brick 1 x 10

×4

Brick 1 x 12

×2

Brick 1 x 12

×4

Tile, Modified 6 x 12 with Studs on Edges

×2

Brick, Round 4 x 4 with 4 Side Pin Holes and Center Axle Hole

×2

Technic, Axle 3L with Stud

×2

Tile 1 x 6

×4

Rubber Belt Large (Round Cross Section) - Approx. 3 1/4 x 3 1/4

Common questions about Build-A-Bob

How much is LEGO Build-A-Bob (3826-1) worth?

Build-A-Bob sells for an average of $108.45 used and $299.69 new/sealed on BrickLink based on 6 months of completed sales. As a retired set, prices tend to hold steady or appreciate over time, especially for complete sets with original packaging. Actual prices vary with completeness — missing minifigures or key parts will lower the value.

What minifigures come in LEGO set 3826-1?

This set includes 1 minifigure: Plankton with Sticker ($20.43). The minifigures have a combined BrickLink value of $20.43. Each figure is linked above with individual pricing if you're looking to buy or sell specific characters.

Is it worth parting out LEGO Build-A-Bob?

The minifigures make up about 19% of the set value ($20.43 out of $108.45). Most of the value is in the complete set package, so selling it whole is likely the better move unless you have buyers lined up for specific figures.

Is LEGO Build-A-Bob (3826-1) retired?

Yes, Build-A-Bob was released in 2006 and has been retired from retail for several years. Retired LEGO sets are only available on the secondary market through BrickLink, eBay, or other resale platforms. At its current price point, it has appreciated since retirement.

How do I check if my Build-A-Bob set is complete?

Use the parts list on this page to check every piece and all 1 minifigure. For the minifigures specifically, you can use the brick'em scanner to identify each figure from a photo and confirm it matches what should be in this set. Missing pieces can be individually sourced on BrickLink.

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