Azure Landing Zone Architecture

Azure Enterprise Foundation

Design Azure as a governed platform, not a collection of subscriptions

Azure Landing Zone decisions should connect identity, management groups, subscriptions, network, policy, security, monitoring, cost and workload onboarding before migration or application modernization begins.

IdentityNetworkPolicyFinOps

GovernanceSecurityMigration

Landing Zone Control PlaneFoundation before workload migration

01HierarchyManagement groups, subscriptions, sandbox and workload separation.02ConnectivityHub-spoke, DNS, routing, firewall, private access and inspection.03GovernPolicy, RBAC, tags, cost controls, Defender and monitoring baselines.04OperateOwnership, monitoring, FinOps, exception rhythm and workload onboarding.

Architecture ruleDo not migrate workloads before identity, network, policy, logging and cost ownership are designed.

Executive Summary

Azure Landing Zone provides a scalable and governed foundation for enterprise cloud adoption.

The objective is to establish a secure, compliant and operationally manageable Azure environment before workloads are deployed.

Landing Zone architecture standardizes governance, identity, networking, security, monitoring, cost management and operations across Azure subscriptions.

한국어 요약

Azure Landing Zone은 workload를 Azure에 올리기 전에 먼저 준비해야 하는 enterprise cloud foundation입니다.

Management group, subscription, identity, network, security, monitoring, policy, cost management를 표준화하면 이후 migration, application modernization, AI platform 구축을 더 빠르고 안전하게 진행할 수 있습니다.

Business Scenario

Typical Azure initiatives include:

• Datacenter modernization
• Azure migration programs
• Hybrid cloud deployment
• Disaster recovery implementation
• Application modernization
• Azure Virtual Desktop deployment
• AI and data platform initiatives
• Global cloud expansion

Landing Zone Architecture Overview

Landing Zone Architecture OverviewTenant hierarchy to governed workload subscriptions

01Tenant rootRoot management group sets global policy, guardrails and inheritance model.

02PlatformIdentity, connectivity and management subscriptions provide shared services.

03Landing zonesProduction, non-production and sandbox subscriptions separate ownership and risk.

04ControlsAzure Policy, RBAC, tags, budgets, Defender, Monitor and Sentinel apply consistently.

05WorkloadsApplications, data, AI and integration workloads onboard into a governed foundation.

Core Components

Component	Design Focus	Output
Management Groups	Enterprise hierarchy and policy inheritance	Management group design
Subscriptions	Workload, environment and ownership separation	Subscription model
Identity	Entra ID, RBAC, PIM, break-glass accounts	Access control baseline
Connectivity	Hub-and-spoke, ExpressRoute, VPN, firewall	Network architecture
Security	Defender for Cloud, Sentinel, Key Vault	Security baseline
Governance	Azure Policy, tags, locks, naming	Governance standard
Operations	Monitor, Log Analytics, alerts, backup	Operational model
FinOps	Budgets, cost allocation, rightsizing	Cost management model

Network Architecture

Network ArchitectureHybrid connectivity, inspection and workload segmentation

01On-premisesDatacenter, branch, identity, DNS and legacy workload connectivity requirements.

02GatewayExpressRoute, VPN, routing and connectivity resilience pattern.

03Hub VNetShared services, DNS, firewall, private access and inspection point.

04SpokesApplication, data, AI and integration workloads are segmented by environment.

05OperationsFlow logs, monitoring, security alerts and network change governance.

Decision Checklist

Decision	Recommended Question
Management group model	Which hierarchy supports policy inheritance and business ownership?
Subscription strategy	How are production, non-production, sandbox and shared services separated?
Network topology	Is hub-and-spoke, virtual WAN or isolated workload design appropriate?
Security baseline	Which Defender, logging, key management and backup controls are mandatory?
Policy enforcement	Which Azure Policy rules should be audit-only first and enforced later?
FinOps model	How are budgets, tags, alerts and cost ownership managed?

Anti-Patterns

• Deploying production workloads before the Landing Zone is defined
• Using a flat subscription model for all workloads
• Treating Azure Policy as a one-time compliance task
• Allowing broad Owner permissions without PIM and review
• Building network connectivity without central inspection and logging
• Ignoring cost ownership until consumption has already grown

Delivery Artifacts

• Azure Landing Zone target architecture
• Management group and subscription design
• Hub-and-spoke network architecture
• Azure Policy and tagging standard
• RBAC and PIM access model
• Security monitoring and logging design
• Backup and disaster recovery baseline
• FinOps dashboard and cost governance model

Operating Model

Function	Owner
Identity	IAM Team
Network	Infrastructure Team
Security	Security Team
Monitoring	Operations Team
Governance	Cloud Center of Excellence
Cost Management	FinOps Team
Workload Ownership	Application or Business Service Owner

Lessons Learned

• Governance is easier to implement before workloads are deployed.
• Network redesign later is expensive and disruptive.
• RBAC, PIM and policy reduce operational risk.
• Cost visibility requires tagging discipline from day one.
• Landing Zone accelerates migration and future AI/data platform projects.
• Security architecture must be embedded into the foundation, not added later.

검색 키워드

• Azure Landing Zone architecture
• Azure management group design
• Azure subscription governance
• Azure hub and spoke architecture
• Azure Policy governance
• Azure FinOps
• Azure 보안 아키텍처

References

• Executive Architecture Blueprint
• Governance Architecture
• Security Reference Architecture
• Migration Architecture

Contact / Asset Request

For architecture decision records, reference diagrams, executive summaries, review checklists or roadmap templates, use Contact and Asset Request.