Build engine

Tell it the sets you own; it shows what you can (nearly) build and the exact parts to buy for a target.

🧱 What you can (nearly) build

%	Set	Name	Buy pcs	Lots
100%	10256-1	Taj Mahal	0	0
93%	10189-1	Taj Mahal	420	21
81%	10230-1	Mini Modulars	254	95

🎯 Build Hogwarts Castle: Potions Class — 2% complete

Buy 370 pieces across 110 lots.

🛒 Source the gap from the parts marketplace

35 of 110 part-lots available now (32%) · 75 still to import. Total-to-door R518 across 1 order(s) — parts + per-seller shipping.

BrickBits Spares · 55 lotsR518 (parts R448 + ship R70)

The missing parts

Buy	Part	Colour	Name
18×	3005	Dark Bluish Gray	Brick 1 x 1
18×	3023	Light Bluish Gray	Plate 1 x 2
15×	3024	Light Bluish Gray	Plate 1 x 1
14×	98283	Dark Bluish Gray	Brick Special 1 x 2 with Masonry Brick Profile
13×	6141	Dark Bluish Gray	Plate Round 1 x 1 with Solid Stud
12×	15672	Dark Bluish Gray	Slope 45° 2 x 1 with 2/3 Cutout [New Version]
11×	2357	Light Bluish Gray	Brick 2 x 2 Corner
10×	3004	Light Bluish Gray	Brick 1 x 2
10×	3023	Reddish Brown	Plate 1 x 2
9×	20482	Black	Tile Round 1 x 1 with Hollow Bar
7×	2420	Light Bluish Gray	Plate 2 x 2 Corner
7×	3070b	Dark Bluish Gray	Tile 1 x 1 with Groove
7×	32028	Light Bluish Gray	Plate Special 1 x 2 with Door Rail
7×	86876	Dark Bluish Gray	Brick Special 1 x 2 with 1 Center Stud on 1 Side, Bottom Stud Holder
6×	1927	Light Bluish Gray	Hinge Plate 1 x 4 Swivel Top / Base - Hollow Clip [Complete Assembly]
6×	27507	Dark Bluish Gray	Tile 4 x 4 Curved, Macaroni
6×	93273	Dark Bluish Gray	Slope Curved 4 x 1 Double with No Studs
5×	3009	Light Bluish Gray	Brick 1 x 6
4×	14719	Reddish Brown	Tile 2 x 2 Corner
4×	15254	Light Bluish Gray	Brick Arch 1 x 6 x 2 - Thin Top without Reinforced Underside [New Version]
4×	18674	Dark Tan	Plate Special Round 2 x 2 with Center Stud (Jumper Plate)
4×	2420	Dark Tan	Plate 2 x 2 Corner
4×	27925	Black	Tile 2 x 2 Curved, Macaroni
4×	30151b	Trans-Clear	Brick Round 2 x 2 x 1 2/3 Dome Top, Hollow Stud
4×	3020	Light Bluish Gray	Plate 2 x 4
4×	3022	Reddish Brown	Plate 2 x 2
4×	3024	Dark Tan	Plate 1 x 1
4×	3040b	Light Bluish Gray	Slope 45° 2 x 1 with Bottom Pin
4×	3622	Dark Bluish Gray	Brick 1 x 3
4×	60475b	Light Bluish Gray	Brick Special 1 x 1 with Clip Vertical [Open O Clip, Hollow Stud]
4×	60897	Reddish Brown	Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip]
4×	6141	Reddish Brown	Plate Round 1 x 1 with Solid Stud
4×	6141	Trans-Clear	Plate Round 1 x 1 with Solid Stud
4×	6141	Medium Nougat	Plate Round 1 x 1 with Solid Stud
4×	87580	Reddish Brown	Plate Special 2 x 2 with Groove and Center Stud (Jumper)
3×	11833	Black	Plate Round 4 x 4 with 2 x 2 Round Opening
3×	14716	Light Bluish Gray	Brick 1 x 1 x 3
3×	2431	Dark Bluish Gray	Tile 1 x 4 with Groove
3×	25269	Lime	Tile Round 1 x 1 Quarter
3×	3010	Light Bluish Gray	Brick 1 x 4