Why Choose HDC?

You Work Directly with the Owner – Every Step of the Way

At Halterlein Design & Consulting, you never get passed to a junior staff or lost in layers of project managers. From the first conceptual sketch to final approvals and permitting, you deal only with Adrian Halterlein, the professional who signs and seals every land development plan and stormwater management report. That means:

• Faster answers – your question goes straight to the person actually doing (and sealing) the work

• Seamless coordination – one experienced professional handles design, stormwater calculations, permitting, and municipal approvals

• Lower fees – no big-firm overhead, no mark-ups, no unnecessary middlemen

• Full accountability – Adrian’s professional seal and 23 years of reputation stand behind every deliverable

Big-Firm Capability, Small-Firm Attention & Price

Adrian has designed and sealed some of the region’s largest projects, including:

• FedEx Ground Distribution Facility – Jackson Township, Butler County

• Breckenridge – 117-townhome community in Cranberry Township

• Walnut Square – mixed-use commercial development in Forward Township

• Numerous commercial, and residential projects across Allegheny and Butler Counties

Yet HDC is intentionally small and flexible enough to welcome individual homeowners and smaller projects that most large engineering firms turn away: whether it is an addition, pool, driveway expansion, backyard grading, or a simple stormwater plan – HDC is ready to work with you.

Superior Designs. Exceptional Client Service.