Property & Project Hierarchy
One authoritative real-estate hierarchy — country, city, area, community, project, building and unit — with effective-dated attributes, data ownership, duplicate prevention and preserved aliases. Steward view (Elena Petrova, Property Admin).
- 🌐 United Arab Emirates country
- 🏙 Dubai city
- 📍 Dubai Marina area
- 🏘 Marina District community
- 🏗 Prototype Residences project · active
- 🏢 Building A — Marina Face 32 floors · 128 units
- 🏢 Building B — Park Face 32 floors · 120 units
- 🏗 Marina Gate Towers project · 2 buildings
- 🏗 Prototype Residences project · active
- 🏘 Harbour Quarter community · 4 projects
- 🏘 Marina District community
- 📍 Business Bay area · 11 communities
- 📍 Dubai Marina area
- 🏙 Abu Dhabi city · Abu Dhabi Branch scope
- 🏙 Dubai city
- Canonical ID
NODE-PRJ-00214- Node type
- Project
- Parent path
- UAE / Dubai / Dubai Marina / Marina District
- Developer
- Noor Development Group
- Data owner (steward)
- EP Elena Petrova — Property Admin
- Makani / geo
25.0806 N, 55.1403 E· Makani 29144 77821- Buildings / units
- 2 buildings · 248 units (open inventory)
- Handover
- 2025-11-30 (completed)
- Created / last change
- 2024-02-11 · last change 2026-07-02 by E. Petrova
- Aliases (preserved)
- “Prototype Towers” (2024) · “Marina Prototype” (portal import 2025)
| Attribute | Value | Effective from | Changed by | Status |
|---|---|---|---|---|
| Marketing name (EN) | Prototype Residences | 2025-01-01 | E. Petrova | Current |
| Marketing name (AR) | مساكن النموذج | 2025-01-01 | M. Al Suwaidi (Legal) | Current |
| Service charge / sqft | AED 18.50 | 2026-04-01 | F. Rashid (Finance) | Current |
| Service charge / sqft | AED 16.75 | 2025-04-01 | F. Rashid (Finance) | Superseded |
| Master community fee | AED 4.20 / sqft | 2026-10-01 | E. Petrova | Future-dated |
| Ownership zone | Freehold — designated area | 2024-02-11 | System (import) | Current |
Duplicate prevention — steward attempts a duplicate project
Acceptance (PROP-01): given an existing project alias, when a steward attempts a duplicate project, the system warns, offers the canonical record and prevents silent duplication.
You entered “Marina Prototype Residences” under Marina District. This matches an existing canonical record via a preserved alias:
- Canonical record
- Prototype Residences
NODE-PRJ-00214 - Matched via alias
- “Marina Prototype” · similarity 0.93
- Geo distance
- 0 m (same parcel)
Silent creation is blocked. Choose the canonical record, or request a new-node exception via the merge/steward workflow (WF-12) with reason and checker approval.
Alias governance — delete attempt blocked
Aliases are preserved for search, portal imports and audit continuity. Deleting a referenced alias returns a governed error, never a silent removal.
Elena Petrova attempted to delete alias “Marina Prototype” from NODE-PRJ-00214.
HTTP 422 UNPROCESSABLE
{
"error": "HIERARCHY_ALIAS_PROTECTED",
"message": "Alias is referenced and must be preserved.",
"references": { "portalImports": 61, "leads": 14, "documents": 7 },
"policyVersion": "MDM-ALIAS-2.3",
"correlationId": "c-9f41-77aa-b302"
}
Recovery path: mark alias as non-searchable (steward action, audited) or merge references first. Both need a reason; removal additionally needs checker approval by the Data Steward role.
| Node | Type | Units | Available | Reserved | Contracted | Blocked | Data owner | Status |
|---|---|---|---|---|---|---|---|---|
| Building A — Marina Face NODE-BLD-00871 · floors G+32 |
Building | 128 | 52 | 9 | 58 | 9 | E. Petrova | Active |
| Building B — Park Face NODE-BLD-00872 · floors G+32 |
Building | 120 | 44 | 5 | 63 | 8 | E. Petrova | Active |
| Retail Podium NODE-BLD-00873 · 14 retail units — pending snagging |
Building | 14 | 0 | 0 | 0 | 14 | E. Petrova | Pending activation |
| Total | 262 | 96 | 14 | 121 | 31 |
Static render mockup — no live data. Source: ERP Modern Development Specification v2.0 · Covers: UX-07, PROP-01 (duplicate prevention, alias preservation, effective-dated attributes, data ownership).