Structural & Seismic

bracing communities for today and tomorrow

Our expertise in Detailed Seismic Assessments and strengthening, civil structures, restoration works and new builds is driven by our commitment to protecting people.

Structural engineers calculating and computing

We offer:

  • Seismic Assessments (DSA & ISA)

  • Restoration Works and Structural Modifications

  • Structural Engineering for Industrial Plants
    including Substations

  • Strengthening of Existing / Heritage Buildings

  • Temporary Works Design

  • Construction Monitoring

  • Condition Assessments

Structural engineers verifying information

Our Projects:

Seismic assessments on existing buildings

Big City Building, Big Engineering Win

This 16-storey commercial tower in central Auckland was given a seismic rating of just 20% NBS — a result that threatened major disruption, tenant headaches, and a $10 million strengthening bill.

The owners turned to Blue Barn for a second opinion. Using advanced modelling tools and deep seismic expertise, we re-assessed the building and delivered an 80% NBS rating — no intrusive work, no downtime, and no disruption.

The result?
✅ $10 million saved
✅ Zero impact on tenants
✅ No environmental or H&S implications

Smart, confident engineering — that’s what we’re known for.

Client reference
Heritage buildings strengthening works

Heritage Protected, Strength Upgraded

This beautiful four-storey, Category 2 historic building in Wellington needed a seismic upgrade — but the initial proposal was costly, intrusive, and didn't respect the heritage character.

That’s where Blue Barn stepped in.

Our independent assessment revealed the building was already performing better than thought. We then designed a smart, low-damage retrofit that respected its heritage features and quietly boosted the seismic rating to 100% NBS — all at half the cost of the original scheme.

Stronger. Smarter. More respectful. That's the Blue Barn way.

Construction works on new builds design
Kumeu sound studio, vacant land that was developed into a super structure where some famous movies were filmed, such as Lord of the Rings.

Purpose-Built for Big Screen Magic

We transformed a bare Kumeū site into two state-of-the-art sound stages — engineered from the ground up to meet the demanding needs of major film production.

The buildings feature reinforced concrete tilt panels and a robust, high-spec roof system designed to support heavy rigging, lighting, and specialist gear. Acoustic performance was a key priority, with Speedwall panels and lightweight cladding tailored to meet the strict requirements of the acoustic engineers.

Built tough and built right, these stages now play a starring role in some of the world’s biggest productions.