IMS Saigon

Azure Landing Zones: The Foundation of Every Successful Cloud Adoption

Build secure, scalable Azure subscription hierarchies, Hub-and-Spoke networks, and automated policy guardrails.

  • Azure landing zone
  • CAF landing zone
  • Bicep IaC
  • Hub and Spoke
Why Do It Right

The Cost of Skipping the Foundation

Enterprises that skip the landing zone all tell the same story two years later: dozens of subscriptions created ad hoc, each with its own network design, inconsistent security baselines, no central logging. Retrofitting governance onto a live estate costs multiples of building it first. The landing zone inverts this: governance is the paved road, not the toll gate. Teams get self-service subscriptions that are secure by default.

Enterprise-Scale Design

What a Landing Zone Contains

Following CAF enterprise-scale design areas:

Identity

Entra ID integration, role-based access with least privilege, privileged identity management for admin roles.

Management Hierarchy

A structure (platform / landing zones / sandbox) that policies attach to, so every new subscription inherits the rules automatically.

Network Topology

Hub-and-spoke with centralized firewalling, private DNS, and ExpressRoute/VPN to on-premises.

Policy as Code

Azure Policy enforcing encryption, allowed regions, required tags, and denied risky configurations.

Security Baseline

Microsoft Defender for Cloud, centralized Log Analytics, Sentinel for SIEM.

Automation

Everything above defined in Bicep/Terraform, deployed through pipelines. The platform itself is a version-controlled product.

The Vending Machine

Reference Architecture

The Roadmap

Build Plan: Foundation in 6-8 Weeks

  1. 1Weeks 1-2

    Design Decisions

    The ~20 CAF design decisions (hierarchy, network topology, identity model) made in workshops with your architects, documented as ADRs.

  2. 2Weeks 3-5

    Deploy Core

    Management groups, policies, hub network, logging — from our tested Bicep/Terraform modules, adapted to your decisions.

  3. 3Weeks 6-8

    First Workload Lands

    A real application migrates in, proving the platform and hardening the subscription-vending process.

  4. 4Ongoing

    Evolution

    Platform evolves as a product with a backlog — new policies, additional regions, AI workload patterns.

Build on Solid Ground

Our team has designed landing zones for regulated DACH enterprises and fast-growing businesses alike. Book a landing zone design workshop and receive your architecture decision record set and deployment plan.

Book Design Workshop

Frequently asked questions

We already have workloads in Azure — is it too late?

No. We build the target landing zone alongside and migrate subscriptions into the hierarchy incrementally — a governance strangler pattern.

Do small organizations need this?

A scaled-down version, yes. Even a 'landing zone light' (policy baseline, one hub, central logging) prevents the sprawl that becomes expensive later. The architecture scales down gracefully.

Terraform or Bicep?

Both are first-class. We choose based on your team's existing skills and multi-cloud ambitions — the design decisions matter far more than the tool.

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