Azure Landing Zone: How to Build One Step by Step

Learn how to design and deploy an Azure landing zone step by step, covering management groups, networking, and policy.

Establishing Strong Foundations with an Azure Landing Zone

An Azure landing zone provides the governance, networking, and security foundation upon which all future workloads are deployed. Organizations that skip this step often face inconsistent security postures and costly re-architecture as their Azure footprint grows. This guide walks through building an Azure landing zone step by step, following Microsoft’s enterprise-scale architecture principles.

Step 1: Design the Management Group Hierarchy

Start by structuring management groups that reflect your organization, separating platform, landing zone, sandbox, and decommissioned subscriptions. This hierarchy allows Azure Policy and role-based access control to be applied consistently across groups of subscriptions rather than configured individually on each one.

Step 2: Plan Your Subscription Model

Determine how subscriptions will be allocated, whether by business unit, environment, or application. Common patterns include separate subscriptions for connectivity, identity, management, and individual landing zones, each with clearly defined ownership and budget accountability.

Step 3: Build the Connectivity Subscription

Deploy a hub virtual network containing shared services such as Azure Firewall, VPN or ExpressRoute gateways, and DNS resolution. Spoke virtual networks for individual workloads then peer back to this hub, centralizing traffic inspection and simplifying network management as the environment scales.

Step 4: Configure Identity and Access Management

Integrate Azure Active Directory with your landing zone, defining custom roles aligned to least-privilege principles. Configure Privileged Identity Management for just-in-time elevation of administrative roles, reducing the risk associated with standing access to sensitive resources.

Step 5: Apply Governance Through Azure Policy

Assign policy initiatives at the management group level to enforce naming conventions, allowed regions, resource tagging, and security baselines such as mandatory encryption. Use policy effects like deny and audit strategically, blocking clearly non-compliant configurations while auditing others for gradual remediation.

Step 6: Deploy Centralized Logging and Monitoring

Configure a centralized Log Analytics workspace and Azure Monitor setup that collects diagnostic data from every subscription within the landing zone. This centralized visibility is essential for both security operations and cost management as workloads are onboarded over time.

Step 7: Automate Deployment with Bicep or Terraform

Use infrastructure-as-code tools such as Bicep or Terraform, ideally leveraging Microsoft’s enterprise-scale landing zone reference implementation, to deploy the landing zone consistently and enable version-controlled updates as your governance requirements evolve.

Onboarding Workloads Successfully

Once the landing zone is established, create a standardized process for application teams to request new landing zone subscriptions, ensuring each new workload inherits the networking, identity, and policy foundations automatically rather than being configured manually and inconsistently.

Symhas designs and deploys enterprise-scale Azure landing zones tailored to your governance and security requirements. Contact our team to accelerate your Azure foundation build.

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