Brownfield vs Greenfield: Choosing the Right Development Path

Laura’s startup was ready to scale, but she faced a dilemma.

Should she overhaul her existing platform, a decision that would require reworking years of legacy code (a brownfield project)? Or perhaps, she could start from scratch with a fresh, innovative design (a greenfield project)?

Both paths have unique software development challenges and benefits. But choosing between a brownfield and greenfield approach isn’t just about code. The decision impacts your product architecture and the entire company’s direction.

In this post, we’ll lay out the pros and cons of each approach to determine which path aligns with your project’s vision.

What Is Greenfield Software Development?

Historically, greenfield projects have enabled groundbreaking advancements. Examples of greenfield developments include early eCommerce platforms like Amazon and mobile operating systems like Android. These initiatives started without prior restrictions, creating new standards in their industries.

Some industries naturally benefit more from starting fresh. Mobile app companies often choose this path since they must stay current with the latest tech. New-age fintech companies also love greenfield development. When handling people’s money, you need modern, secure systems built specifically for today’s banking needs.

Healthcare technology is another prime example. With strict regulations and the need for cutting-edge patient care tools, starting from scratch often makes more sense than updating old systems.

The advantages of a greenfield project

Starting fresh comes with solid benefits that make many teams choose this path. Here’s what makes Greenfield development attractive:

• Creative freedom: Teams can design and develop innovative solutions without legacy constraints. This approach encourages fresh ideas and modern architectures
• Future-proof technologies: Starting from scratch allows using modern frameworks, tools, and methodologies, which reduces technical debt and supports long-term scalability

👉🏼 Curious about managing technical debt? Here are five simple steps to prevent it from derailing the development process.

• Custom-fit solutions: Greenfield development ensures the final product aligns with the project’s goals. It minimizes compromises, creating an optimal user experience
• Simplified maintenance: Maintenance becomes easier without outdated code or incompatible systems. Bugs are often less complex to identify and resolve
• No migration challenges: Since no legacy systems exist, there’s no need for time-consuming data migration or compatibility checks. Teams can focus solely on building the new system

The disadvantages of greenfield software development

While starting from zero sounds great, it’s not all smooth sailing. Here’s what you need to watch out for:

• Higher initial costs: Building from scratch requires significant planning, development, and testing resources. It may exceed the budget of smaller organizations
• Longer development time: Starting fresh means designing everything from the ground up, which can extend the project timeline compared to upgrading existing systems
• Unpredictable risks: Without legacy systems as a guide, unforeseen challenges may arise. Teams may encounter technical roadblocks or misaligned expectations
• Resource-intensive management: Greenfield projects demand active involvement in software project management to track progress, mitigate risks, and meet goals
• Lack of initial structure: Unlike legacy upgrades, greenfield projects lack a foundation to build. This increases reliance on accurate project development planning to avoid missteps

What Is Brownfield Software Development?

Charles Bartsch of the Northeast-Midwest Institute, a US-based nonprofit, popularized ‘brownfield’ during a 1990s conference on managing old industrial properties. 

The term quickly gained traction and has since been widely used in publications, seminars, and discussions across both public and private sectors. 

Similarly, brownfield software projects transform outdated systems into modern, scalable solutions without discarding the existing infrastructure and assets.

In the past, brownfield development has been essential for industries dependent on large-scale legacy systems. A notable example is the transition of banking systems to online platforms. Instead of replacing core banking infrastructure, banks integrated digital tools into existing facilities while retaining vital legacy components.

Industries like finance, telecom, and manufacturing benefit significantly from brownfield redevelopment projects. These sectors rely on legacy systems for critical operations and require updates to remain competitive. Telecom companies, for instance, often upgrade their systems for faster data processing without overhauling entire networks.

The advantages of a brownfield project

When deciding whether to modify existing systems or start fresh, brownfield development offers several compelling benefits:

• Cost-effective modernization: Brownfield projects optimize existing systems, avoiding the costs of starting from scratch. Thus, businesses save money while improving functionality
• Faster implementation: Reusing legacy components reduces development time compared to building entirely new systems. Businesses can adapt quickly to market demands
• Preserved data integrity: Existing systems often house valuable data. Brownfield projects retain this data, preventing migration errors or loss
• Familiarity for users: Retaining familiar features eases team transitions and minimizes training requirements. It helps maintain productivity during the implementation
• Compliance with existing regulations: Legacy systems often follow specific compliance standards. Brownfield development adheres to these, reducing risks of non-compliance

The disadvantages of brownfield software development

While Brownfield development has its strengths, it also comes with notable challenges that teams should consider:

• Technical limitations: Brownfield projects may face constraints due to outdated architectures or technologies. These can restrict modernization efforts
• Complex integrations: Incorporating new technologies with legacy systems can be challenging. It requires specialized expertise and Agile tools to manage the process
• High maintenance requirements: Maintaining updated and legacy components simultaneously increases operational complexity and resource allocation
• Dependency on legacy infrastructure: Existing systems often create dependencies that are difficult to eliminate. These can hinder scalability and innovation
• Risk of scope creep: Brownfield projects often involve iterative improvements. Without a defined stage gate process, teams may face expanding project scopes and delays

A Comparison Overview of Greenfield Development vs. Brownfield Development

Should you build from scratch or transform an existing site or app? This choice directly impacts your budget, timeline, and overall project approach. When choosing between brownfield and greenfield projects, you should evaluate these key factors:

Context-specific suitability and deciding factors

Here’s a simple checklist to help you decide which approach is the best for you.

Greenfield projects

Greenfield development suits projects that create a new product, platform, or system. It’s ideal for startups, new business ventures, or organizations seeking to innovate with a new idea, technology, or market.

Deciding factors include:

• Innovation requirement: When the project requires a fresh, unique approach without being constrained by existing systems or code
• Technology freedom: When there is a need to select the most modern or customized tech stack
• No existing system: When there are no legacy systems to integrate with, and the focus is on creating something from the ground up

Brownfield projects

Brownfield development is best when you need to improve, upgrade, or expand an existing system. It’s suitable for businesses with a legacy system and must add new features, enhance performance, or ensure compatibility with newer technologies.

Deciding factors include:

• Legacy systems: When there is an existing codebase that must be maintained or improved
• Faster time to market: When there’s a need to roll out new features or functionality quickly without starting from scratch
• Integration needs: When the software must work with existing systems or databases

Managing Software Development with

A straightforward process and the right tools can make all the difference when tackling software development projects. While the complexity of these projects can be overwhelming, , the everything app for work, can make things easier. 

for Software Development is designed to help development teams efficiently manage their projects and resources for both greenfield and brownfield development.

Use it to assign tasks, schedule automated actions, and easily oversee your entire software project lifecycle in one place.

Here’s how supports greenfield and brownfield software development:

1. Agile project management

’s Sprints and Agile boards allow teams to plan and execute work iteratively, making it ideal for both Greenfield (building from scratch) and Brownfield (modifying existing systems) projects.

for Agile software teams offers customizable workflows for Scrum, Kanban, and other Agile approaches, letting teams generate product roadmaps, create test plans, write technical specifications, and more with the enhanced power of built-in AI.

Features like Agile dashboards, sprint reporting, and native Git integrations further allow teams to stay aligned on product roadmaps, backlogs, and progress.

Use Custom Task Statuses in to reflect each phase of development, from ideation to deployment. Track sprint velocity and team progress with burndown charts and velocity reports to keep projects on schedule.

2. Task prioritization and resource management

With Tasks, you can tailor your task statuses, such as To Do, In Progress, and Completed, to match the stages of your development cycle. Break down large greenfield projects into structured task hierarchies (Epics → Features → Tasks → Subtasks).

Assign tasks with four different Task Priorities in —Urgent, High, Normal, and Low—to ensure the most critical components are built first.

You can even link related and dependent tasks to see how different parts of your project are interconnected.

For brownfield projects, ’s Task Dependencies (e.g., “Blocked by,” “Waiting on”) ensure teams can clearly visualize dependencies between old and new system components. At the same time, Gantt Charts in provide a timeline view to track progress and identify bottlenecks when refactoring legacy systems.

As the everything app for work, links your tasks, docs, and external tools seamlessly, helping your team access everything you need in a central work hub. For Agile teams balancing innovation and maintenance, eliminates silos, reduces context-switching, and connects everything in one place—so they can build, iterate, and ship faster. 

3. Simplified workflows

Automating repetitive tasks—standardizing code reviews, testing approvals, and deployment pipelines—with Automations gives your team more time for critical work. 

For example, if you often have to remind team members about approaching deadlines, you can create automated alerts. 

When a task is nearing its due date, will prompt you to adjust priorities, change lists, or create a new task for the manager. Then, you can stay on top of deadlines and focus on what truly matters—building great software.

Mundane yet time-consuming tasks like moving cards in Agile boards when status updates occur can also be automated. You can even set up notifications for when legacy system updates (brownfield projects) impact development sprints for greenfield initiatives. This ensures that brownfield updates don’t break existing functionality before new features are deployed.

4. Improved communication and collaboration

enhances real-time collaboration without disrupting your team’s focus. 

Use Whiteboards to visualize system architecture for both greenfield planning and brownfield modernization.

Threaded comments and @mentions on tasks ensure smooth communication across developers, product managers, and stakeholders, while custom Dashboards provide a high-level view of development progress, blockers, and resource allocation.

You can ask any question in Chat, and AI will instantly provide an answer, drawing from the entire history of that conversation or information across your workspace and connected apps like Google Drive, GitHub, Figma, and Salesforce. 

Agile teams often work in fast-moving sprints, where quick decisions are crucial. Instead of bouncing between Slack, Jira, and email, Chat keeps everything inside the same platform. Developers, PMs, and QA testers can create and tag tasks directly in chat, making it easier and faster to track action items. 

Each List, Folder, and Space has its own Chat in . Access all existing views and manage projects directly through the Chat interface.

In greenfield projects, teams define architecture, APIs, and feature requirements from scratch. In brownfield projects, teams need clear documentation on existing systems and how updates affect dependencies. With Docs, you can embed tasks directly within documentation—so devs can reference specs without switching tabs. With features like version history and collaborative editing, your team can update API documentation as it evolves.

5. Integrations 

integrates with 1,000+ tools you already use, for free. 

Connect with GitHub, GitLab, Bitbucket, and other version control tools to track commits and pull requests directly in . You can also integrate Jira or Azure DevOps if transitioning from legacy tools.

Which Is Better for You: A Greenfield Project or Brownfield Software Development?

Now that you understand greenfield vs. brownfield software development, you can choose the best approach for your project. The answer isn’t always clear-cut, but it depends on your needs. The decision should be made early on in the project lifecycle, with input from all stakeholders, including the client and software development team.

If your existing system functions well, has clean code, and offers future-proof solutions, brownfield development is likely the right choice. It allows you to build a new software system on a solid foundation and update it with new features.

However, greenfield development is the way to go if you need a custom solution tailored to your unique business needs or if your current system is outdated and disorganized. 

💡 Whether you’re building software from the ground up or modernizing legacy systems, provides the flexibility, visibility, and automation to streamline project planning and execution.

Try today!

Explore article topics

Everything you need to stay organized and get work done.