Three white ten-storey apartment blocks stand in a U. From the top (north) of the pattern they are 101, 102 and 103; the middle one, 102, sits eight blocks further back, so a playground fits between the two arms on the open (east) side of the U. North of block 101 is a car park with five cars, and the top-right corner of the pattern has a gate post and guardhouse. 26 × 44 blocks, 47 layers, 7,927 blocks, 21 block types.
The right-hand (east) side of the pattern is the front, and each block carries a big building number in gray concrete at the top of that end wall — the usual way Korean apartment buildings are numbered. The walls are ivory smooth quartz, the floors and trim quartz blocks, the corners light gray concrete, and on every storey a band of light blue stained glass panes, set one block back above a white parapet, draws a horizontal stripe. The roof is green lime concrete with a stair house and an iron block water tank. In the short, the apartment grows through three sizes — three storeys (487 blocks), one five-storey block (2,066) and the ten-storey, three-block complex (7,927). This pattern is the largest.
Layer by layer — the ground, three ten-storey blocks, the roof
LAYER 1 — the site. 671 blocks, the biggest layer. The three building floors and the estate paths are 440 quartz blocks — blocks 101 and 103 are 13 × 11, block 102 is 5 × 11, with a two-block gap between them. The car park north of 101 is 94 gray concrete split into five bays by four white concrete lines (20 blocks), and the 9 × 13 playground between the arms is 77 green concrete, like a rubber surface, inside a 40-block yellow concrete border.
LAYER 2–4 — ground floor. This is the wall every storey repeats. LAYER 2 is a smooth quartz parapet (light gray concrete corners) with a quartz slab ledge just outside on every side except the front end wall. LAYER 3–4 are the light blue stained glass pane band, set one block in and broken every three or four blocks by a wall between flats. The front end wall has three small two-high windows per storey on floors 2 to 9 only — the ground floor has the entrance and a gray concrete skirting row, and the tenth floor is kept for the number.
Entrances. In the middle of each front end wall: a one-block doorway with set-back glass either side, a light gray concrete lintel on LAYER 4 and a 2 × 3 quartz slab canopy at LAYER 5 height. Block 101 has two lanterns hanging under its canopy.
LAYER 5, 9, 13 … 37 — floors. Nine floors of 212 quartz blocks each. Block 101 is floored right across its 13 × 11 except for a three-block stair opening; blocks 102 and 103 have no interior, so they get just the outer ring.
LAYER 6–8, 10–12 … 38–40 — floors two to ten. The ground-floor order — parapet and ledge, then two rows of glass band — stacked nine more times. Only block 101 has an interior: from the ground floor up, each storey gets 10 pieces of furniture (4 barrels, 2 furnaces, 2 wool for a bed, a crafting table and a flower pot), 8 to 10 sea lanterns in the ceiling at the height of the second glass row, and a stair of three quartz blocks climbing one layer each.
LAYER 37–41 — building numbers. One block in front of the tenth-floor end wall, five rows of gray concrete spell 101, 102 and 103 (75 blocks). The top row is level with the roof edge.
LAYER 41–42 — green roof. 225 lime concrete inside a quartz rim, then a smooth quartz parapet all round on LAYER 42.
LAYER 42–47 — stair houses and water tanks. A 5 × 3 stair house on blocks 101 and 103 and a 3 × 3 one on 102 rise to LAYER 44 — light gray corners, a gray concrete door and a sea lantern above it — under a quartz roof on LAYER 45. On top of 101's and 103's sit 3 × 3 iron block water tanks two layers tall (LAYER 46-47 x2, 36 blocks), the highest point of the build.
Around the blocks — car park, playground, gate. Each car is 24 blocks (3 × 5, four black concrete wheels and black windows): two white, two silver (iron block) and one red. A street lamp — a sea lantern on an andesite wall post — stands at each end of the car park. The playground has two red-roofed slide towers with yellow slides, a quartz slab bridge between them, a swing and two benches. The gate is a light gray post topped with a sea lantern and a 3 × 3 guardhouse, and the road between them runs into the car park.
Gathering materials — it is nearly all quartz
Quartz is close to two-thirds of the build — 2,557 quartz blocks, 1,781 smooth quartz and 802 quartz slabs. Smooth quartz is a quartz block smelted once. Slabs come two per block either way: 401 blocks with a stonecutter, or 402 at a crafting table (3 → 6, 134 times). That makes 4,739 quartz blocks (4,740 by crafting table) — about 19,000 nether quartz — plus 223 coal to smelt the 1,781 smooth quartz.
1,908 of the quartz blocks are the nine floors, and 864 of those are block 101's indoor floor — lay it in another block and the outside looks almost the same. White concrete can stand in for the smooth quartz walls, though it is the same colour as the white cars in the car park.
Light blue stained glass panes, 1,399: dye the glass before making panes and you need less dye. 66 batches of 8 glass + 1 light blue dye give 528 stained glass (66 dye), and 88 batches of 6 → 16 give 1,408 panes. Making clear panes first and dyeing those takes the same 528 glass but 175 dye. 528 glass is 528 sand.
Concrete comes in eight colours: 139 batches of powder (4 sand, 4 gravel, 1 dye each), 556 sand and 556 gravel — light gray 416 (52 batches), lime 225 (29), gray 193 (25), green 77 (10), black 50 (7), white 48 (6), yellow 44 (6), red 32 (4). Of the 97 sea lanterns, 91 are block 101's ceiling lights — glowstone works fine. The 64 iron blocks (576 ingots) are the water tanks (36) and the silver cars (28). Then 39 andesite walls, block 101's 100 pieces of furniture and 3 lanterns.
Tips
Mark the three building floors on LAYER 1 first. The front of 101 and 103 is column 13 of the pattern grid, the front of 102 is column 5 — eight blocks back — and the blocks are two apart. Once that frame is down, the playground (columns 8–16, rows 18–30) and the paths fall into place.
Floors 2 to 10 look the same from outside, but inside block 101 the stairs, furniture and lights move from floor to floor, and on several floors one stretch of balcony glass comes forward to the wall line — so the pattern does not group any of them. Follow it floor by floor rather than repeating one floor from memory.
The building numbers are split across the pattern one row per layer (column 14 for 101 and 103, column 6 for 102). Seen from the front (east), the bottom (south) of the pattern is on your left. Lay all of LAYER 37–41, then step out to the east and check that 101 reads the right way round.