Creating communities and thriving marketplaces

Subdivisions that house hundreds of families like yours. Downtown shopping districts bustling with consumers. Office complexes where businesses thrive. Mixed-use neighborhoods where the people in our community live, work, and gather. Healthcare campuses that serve aging communities.

Residential and commercial building developments—large and small—form the backbone of our cities and towns. This is where we build our lives and businesses.

Shifting demographics, evolving regulations, rising costs, climate resilience demands, and market pressures converge at every stage of development.

The success of your project relies on more than strong vision; it requires strategic integration across multiple disciplines.

Multidisciplinary Land Development Services

Navigating the complex variables of land development requires a partner who understands how each piece affects the whole—whether you are developing:

At RETTEW, we don’t just provide land planning and site engineering. We partner with developers who understand success requires a complete foundation, one built on deep market insight, regulatory mastery, and adaptable infrastructure planning.

That foundation begins before you break ground, with surveying and mapping, subsurface utility engineering (SUE), geophysical investigations, and geotechnical analysis that reveal what lies beneath your site and inform every design decision that follows.

We were very impressed with the completeness and thoroughness of the plan submission package, RETTEW really did a fantastic job. – Vice President – Development, High Real Estate Group, LLC

We know successful development project management requires more than expertise; it requires genuine ownership and commitment to your project.

At RETTEW, we approach planning, design, and permitting with that mindset. We’re particularly skilled at projects where diverse uses converge, where regulatory landscapes shift, and where each decision across disciplines affects the whole.

Why Developers Choose RETTEW

The projects that succeed aren’t defined by their budget or timeline alone; they’re built on relationships between developers and partners who think beyond the immediate deliverable.

We approach every project with that perspective, bringing civil engineering, site planning, permitting expertise, and development experience across residential, commercial, healthcare, and mixed-use markets.

We’ve learned that the most successful developments align three things:

  1. A clear understanding of market realities and regulatory requirements
  2. Infrastructure planning that anticipates change
  3. Financial strategy that protects viability at every phase

We don’t just provide services. We collaborate with you to weave these elements into cohesive solutions that position your project for both near-term delivery and long-term performance.

Whether you need land planning, site engineering, regulatory guidance, or integrated strategy across all these, RETTEW is your partner from concept through completion.

Let’s Discuss Your Next Development Opportunity

Whether you’re evaluating residential communities, commercial properties, healthcare facilities, or integrated mixed-use projects, we’ll work alongside you to create resilient, compliant infrastructure that’s ready for what comes next.

Partner With RETTEW for Your Development Service Needs Today

At RETTEW, we’re more thanx a team of consultants—we’re partners who walk alongside you. We know that meeting timelines and financial targets with outstanding quality is critical to your success.

We uphold the highest standards of community engagement, environmental stewardship, public safety, and economic development so your project becomes a true asset to the community you serve.

Ready to discuss residential or commercial land development services with an expert? Get in touch with our team and we’ll partner with you from concept to completion.

Frequently Asked Residential And Commercial Land Development Engineering Questions

Yes, we provide land planning and site engineering services for both residential and commercial markets. Our team specializes in mixed-use projects, seamlessly blending these two areas of expertise, like our work with the Stehli Silk Mill in the City of Lancaster, PA, Strata Symphony in downtown Allentown, PA, or the Crossings at Conestoga Creek in suburban Lancaster, PA.

During the land development process, each stage, while seemingly straightforward, involves a series of complex, detailed steps that demand the knowledge, experience, and skill of various professionals. Project managers and engineering experts handle a range of crucial tasks, including:

Yes, you’ll need certain permits for your project. The specific permits you need will largely depend on the type and scope of your project, as well as the site you intend to build on. Environmental permits are typically required, and our experts can help with that process

Commercial land development engineering is a complex field with numerous considerations, such as:

  • Project Scope and Complexity: A standard, small retail building will have a much shorter engineering timeline than a large, multi-story office building or a specialized industrial facility.
  • Property Disputes: Conflicts over property boundaries, easements, or access rights can stall the land development process with litigation. It’s vital to survey the land accurately and clear title information in the earliest stages of the project to mitigate risk.
  • Infrastructure Development: Coordinating with municipalities or utility providers for roadway improvements, stormwater systems, or water and sewer extensions can lengthen a project’s timeline.
  • Utility Relocation and Development: Often, existing utilities such as electric lines or sewer may need to be relocated or upgraded for new construction with a complex design, approval, and field work process.
  • Community Opposition: Public feedback during hearings or review periods can lead to additional revisions, extended review times, and design modifications to address concerns.
  • Local Regulations and Permits: The permit process is a frequent source of delays. Local jurisdictions have different staffing levels and processing times, and projects may be sent back for revisions multiple times before final approval.
  • Number of Design Revisions: Changes requested during the design phase can add weeks or months to the schedule as the engineers will need to revise their plans and re-coordinate with other teams.
  • Site Conditions: Unforeseen issues with the property, such as unstable soil, can lead to extended engineering and site preparation times.
  • Environmental Constraints: The presence of wetlands, floodplains, or endangered species habitats can significantly complicate the permitting process, delay the project, and require costly mitigation measures.
  • Zoning and Land Use: A project may not comply with local zoning laws and require a potentially lengthy and uncertain rezoning or variance process.
    Permitting Delays: Obtaining permits from multiple local, state, and federal agencies can take months or even years.
  • Changes in Regulations: New or changing regulations during the course of a project can force costly design changes and compliance efforts.
  • Scope Changes: Unanticipated changes to the project’s scope, often requested by stakeholders, can lead to delays and budget overruns.

RETTEW’s multidisciplinary structure allows our team to address potential project challenges from every angle. Our engineers, surveyors, environment scientists, planners, and permitting specialists work as a coordinated team to streamline the entire process from start to finish and maintain project momentum.

You can review our work on our Project Portfolio page by filtering to view only our residential or commercial projects.