# Grand Escape Estates — exact implementation design

Status: **BUILT LIVE; EXACT SAVED-WORLD, PAPER-RESTART, OWNER-HOUSE, ROUTE, LIGHTING, CIVIC-PLAZA AND PHYSICAL MINECART ACCEPTANCE PASSED**

## Design outcome

Grand Escape Estates is a remote district in the fully generated frame `x3424..3727, z1008..1295`. Its two column-free stadiums now hold the actual owner-built houses at their historical Y3 datum. Birchglass Conservatory and Starlight Observatory were newly authored interim copies; the accepted owner-house correction retired those copy layers without changing the surrounding infrastructure.

| Current owner house | Column-free stadium chamber | Exact house destination | Basement studio | Modest dry surface entry |
|---|---|---|---|---|
| **Owner House North — Oak & Glass** | `[3464,-14,1144]..[3559,36,1231]` | `[3483,3,1171]..[3536,15,1198]` | `[3484,-13,1170]..[3509,-2,1195]` | `[3459,2,1104]..[3469,75,1114]` |
| **Owner House South — Quartz & Glass** | `[3632,-14,1144]..[3727,36,1231]` | `[3643,3,1175]..[3691,11,1194]` | `[3654,-13,1170]..[3679,-2,1195]` | `[3643,2,1122]..[3653,74,1132]` |

Both surface-entry structures are 11×11. Their full footprints have zero water-surface columns. The North entry roof is nine blocks above the lowest measured ground datum; the South entry is eleven, within the 12-block modest-entry limit.

The shared rental concourse and future station occupies `[3560,2,1120]..[3639,18,1143]`. Each estate has a complete waiting area, staff work area, service store, and two independent exits: a private surface-stair route and a separate rental-office/station route. The exact route graph uses support/body/head semantics and terminates at a real owner-house door. The accepted support-coordinate routes are:

| House | Private-surface network anchor → owner door | Rental-station network anchor → owner door |
|---|---|---|
| Owner House North | `[3463,3,1182]` → `[3492,3,1196]` | `[3559,3,1182]` → `[3513,3,1188]` |
| Owner House South | `[3700,3,1182]` → `[3687,3,1193]` | `[3632,3,1182]` → `[3687,3,1193]` |

A player stands one block above each listed support coordinate. All four routes passed with solid support, two-block body/head clearance and a complete owner door at the destination.

The prepared future rail stub is exactly 100 rail positions at `x3598,y3,z1021..1120`. Twenty-five are powered rails in a four-block cadence. Its north end is physically sealed at `[3596,3,1020]..[3600,8,1020]` and signed at `[3597,3,1022]`:

- `PLANNING HANDOFF`
- `END OF BUILT RAIL`
- `NO THROUGH SERVICE`
- `100 BLOCKS BUILT`

No through service or remainder beyond the first 100 positions is claimed. The station end has an exact recoverable polished-blackstone-brick bumper at `[3598,3,1121]`, outside the 100 rail coordinates.

## Saved-world evidence and protections

The exact predecessor is the zero-player, `save-all flush` boundary at `2026-08-27T03:52:45Z`. The server was then stopped so the source stayed frozen. The survey found all 342 expected chunks present and `minecraft:full`.

The five bound region hashes are:

- `r.0.0.mca`: `de9a2fae6d88f794207da5b46776dbc2935bade250a308d05c7e221c4dd2f637`
- `r.6.1.mca`: `8183f0ad02c9195a6dad5404929c90231e66ee62f7623fdb9534f02fbfd9a8d8`
- `r.6.2.mca`: `3e0fd0209c5507cb17b9e45d1426306869c667bb1031b4dcaa8b38cae0723b29`
- `r.7.1.mca`: `b15b1ee3314abfe6aee8c2f977d1af496cd6785c5b432143cb22acdb7d6ef779`
- `r.7.2.mca`: `e9827e695d945c9e6253b8c3fa60112f77043ba10102fb3fa6ed665fd59e57d3`

Nine natural dungeon/spawner components are strict no-touch controls. Every remote patch coordinate is inside an exact saved-world survey box and outside every component's four-block XZ buffer. Proposed volumes contain no block entities, ordinary entities, or measured non-natural blocks.

Historical interim-copy fidelity was exact: Birchglass reproduced 10,225 source records and Starlight reproduced 12,417, including the three measured exposed-cut-copper states. Those numbers and the operation hashes below remain the immutable provenance of the first seven-operation chain; they do not identify the current owner houses.

The live successor reconstructs **Owner House North — Oak & Glass** from 3,045 exact template records and **Owner House South — Quartz & Glass** from 2,206, including twelve exact legacy signs. The correction's published registry and live saved world agree on all 18 declared block entities. Source retirement occurred only after remote restart acceptance and retained every coordinate already owned by the Bunker City. The local glowstone control remains 14,724 blocks; the THR easement controls remain 206 powered rails and nine ordinary rails.

## Fluid and structural engineering

Containment is operation 1 and excavation/fluid neutralization is operation 2. Containment changes 916 original fluid coordinates; excavation changes 5,715. The registry includes water, lava, and bubble columns, traces finite components, samples six-neighbor boundaries, and requires zero external post-stage fluid neighbors before fit-out.

Six declared roof volumes must finish as air or canonical invisible `minecraft:light` only. Their exact boxes are embedded in both excavation and fit-out patches. The complete outer shell, including Y2 surface floors, is installed before any cavity or route-prism excavation.

Lighting acceptance is not raw distance through walls. Every public route, destination connector, stair, office, studio, surface house, column-free floor sample, and every standable relocated-home support/body/head position at occupied body Y4..Y11 must have a canonical level-15 invisible-light witness through a transparent six-neighbor path of at most three cells. This gives a conservative minimum modeled block light of 12 while opaque blocks stop propagation.

## Historical infrastructure and interim-copy operation order

This table is retained verbatim as the exact provenance of the infrastructure build and the now-retired Birchglass/Starlight interim copy layers. The later owner-house correction is an eight-operation successor; it does not rewrite these files or hashes.

| # | Operation | Records | Patch SHA-256 |
|---:|---|---:|---|
| 1 | `contain-grand-escape-estates-20260827` | 74,701 | `36532a8d99ffdca94fb5d481e56bf583c35018f2f7c6b90bff163465df0878d0` |
| 2 | `excavate-grand-escape-estates-20260827` | 415,106 | `4d73d0eade84bb9c652db7606e90c800c44cadf95ef64c9b655ee04ab5b932ac` |
| 3 | `fitout-grand-escape-estates-infrastructure-20260827` | 17,507 | `2dd2f0675d778fc46ee4de465f6114c9536aa17fa79c69a2cbafba3c0bf35bab` |
| 4 | `relocate-birchglass-to-grand-escape-20260827` | 10,225 | `28d875c475ce097d5e10e8982b7e8f0ce0df762083c1082a0a1cbcc185a54c8f` |
| 5 | `relocate-starlight-to-grand-escape-20260827` | 12,417 | `a9fbd50862bf66c84a5851da4dcab70a44b47bfec51c6d6afd83139073bfb32f` |
| 6 | `clear-mountain-side-birchglass-after-relocation-20260827` | 10,225 | `a8abf0c9ae693e37f9dc4c72ca6c410e464cbc5f79020eeb5ab46b458d388081` |
| 7 | `clear-mountain-side-starlight-after-relocation-20260827` | 12,417 | `07d254702c7af81eb46f87526865c7454307623bf4e41d464834f4d19a2d8a6c` |

Total exact input records: 552,598. The operation-set SHA-256 is `bf87fc64ad45166b222cfbc741b4b06a036e205b5285f64a39c313d7dc42f7da`. Every manifest carries cumulative predecessor operation IDs and hashes. Any mismatch stops the chain; rollback runs in exact reverse order.

## Current live test and inspection points

- Owner House North surface-route door: `/tp @s 3492.5 4 1196.5`
- Owner House North station-route door: `/tp @s 3513.5 4 1188.5`
- Owner House South surface/station door: `/tp @s 3687.5 4 1193.5`
- West stadium chamber walk: `/tp @s 3554.5 3 1226.5`
- East stadium chamber walk: `/tp @s 3722.5 3 1226.5`
- Shared rental station: `/tp @s 3590.5 4 1132.5`
- Prepared future-rail handoff: `/tp @s 3597.5 3 1024.5`
- Owner House North surface entry: `/tp @s 3464.5 70 1109.5`
- Owner House South surface entry: `/tp @s 3648.5 69 1127.5`

The chamber and rail-handoff coordinates above supersede the three prebuild
test points that treated collisionless light/rail blocks as floors. The live
coordinates have real polished-deepslate support and two-block-clear player
volume; the corrected landing rule is now shared by the Coordinates product.

## Live implementation and restart proof

The historical seven operations were applied serially under the sole mutation lock after
a checksummed disaster copy of all five block regions and all five entity
regions. Containment completed before the 415,106-record excavation. Before
and after the mandatory excavation restart, all 423,324 interior fluid-check
coordinates had zero remaining water, lava or bubble columns.

The complete seven-operation relocation then joined the eleven-operation
Mountain Side Bunker City chain. After a full Paper restart, the composed live
state had 545,711 exact coordinates and zero mismatches. Grand Escape passed
four independent door-to-destination walks, six column-free volumes, 12,446
transparent lighting witnesses across 36 groups at minimum level 12, all 100
rail positions, the sealed cap, station bumper and both physical loaded-cart
stops. QA cleanup left zero tagged carts and zero forceloads. The authoritative
live evidence is
`fixtures/mountain-side-bunker-city-live-acceptance-20260827.json`.

The historical infrastructure/interim-copy contract is `fixtures/grand-escape-estates-operation-set-20260827.json`. Its isolated-clone fixture `fixtures/grand-escape-estates-clone-roundtrip-20260827.json` passed with SHA-256 `4325b1f9958a3ec73bdc33c1b40ad23a3c43ea9786e3a734e4191e7df970bbba`: all seven forward operations, restart persistence, four complete door-to-destination routes, 12,446 transparent-path lighting samples across 36 groups at minimum 12, 37 exact block entities before and after restart, two-way loaded-cart travel and physical stops, exact seven-operation reverse, and post-reverse restart. Cleanup left zero tagged carts and zero forceloads.

The current identity and occupancy are established by the later eight-operation owner-house correction, detailed in `docs/OWNER-HOUSES-RELOCATION-CORRECTION-20260827.md`. It retired only the Birchglass/Starlight remote copy layers, installed the two actual owner houses, connected four exact routes, retired only unowned source fabric and finished the vacated Estate footprints as the Owner-House Civic Plaza. The correction contains 37,781 input records composed to 34,579 coordinates. Its isolated forward/restart/reverse fixture passed with SHA-256 `b3b477e6acf7afc4eb6269496b361bf13ac7e484f7fe603287cb23a7b7dc58aa`; final live acceptance passed after restart at `2026-08-27T14:42:23Z` in `fixtures/owner-houses-relocation-correction-live-acceptance-20260827.json`, SHA-256 `e3dca135c0fd85222092cc16fb2b458d0657bc805637d42fa66942751dcd84d6`.

Protected controls passed with exact block states, exact legacy ROOM signs, unchanged glowstone/THR counts, and zero semantic entity mismatches. The fixture also retains 15 raw dungeon block-entity serialization differences caused solely by Paper 1.21.11 adding empty `components`, materializing empty `Items` on unopened loot-table chests, and flattening the equivalent stored-enchantment `levels` wrapper. A narrow fail-closed comparison projection accepts only those observed lossless forms; changes to loot table/seed, item identity/count/slot, enchantment value, spawner configuration/species, sign data, or block state remain fatal.