From compliance audit to finished pathway, delivered end to end.
DDA Engineering Solutions audits, designs, supplies and installs accessible walkways and tactile ground surface indicators for commercial and private sites across Australia — assessed against AS 1428 and AS/NZS 1428.4.1.
We don't just identify accessibility issues — we assess, design, supply and deliver the physical solution, on our own or alongside your existing team.
Practical accessibility solutions, not just a report.
Four core capabilities that take a site from non-compliant to fully installed and signed off — available individually or as one managed project.
Independent Accessibility Audits
Audits of proposed designs and existing infrastructure, assessed against AS 1428 and related standards.
- Design & documentation review
- Existing site audits
- Non-compliance findings & fixes
TGSI Services
Tactile Ground Surface Indicator audits, design and supply & installation to AS/NZS 1428.4.1.
- TGSI audits & assessment
- Compliant design & specification
- Supply & installation
Luminance Contrast Testing
Testing and reporting on luminance/luminosity contrast to meet Australian Standard requirements.
- On-site contrast measurement
- Compliance reporting
- Material & finish recommendations
Complete Walkway Installation
A full turnkey walkway solution — from site assessment through to final delivery and sign-off.
- Excavation & permits
- Material supply & installation
- On-site supervision & QA
Every recommendation is anchored to a standard, not an opinion.
Our audits, designs and installations are carried out with reference to the applicable Australian Standards and relevant regulatory requirements, so recommendations are compliant and outcomes are consistent.
Design for Access and MobilityThe primary standard governing accessible design across the built environment, applied throughout every audit and installation we undertake.
Tactile Ground Surface IndicatorsSets requirements for TGSIs assisting people with vision impairment — the standard our TGSI audits, contrast, design and installation work is measured against.
AustralianOff-Street Parking for People with DisabilitiesSets minimum requirements for accessible car parking design, including bay dimensions, shared transfer zones, headroom clearances, and signage. It works alongside AS/NZS 1428.1 and AS/NZS 1428.4.1 (tactile ground surface indicators); we assess sites against applicable NCC/BCA accessibility requirements.
One project, managed start to finish.
We can manage the entire walkway project — assessment through to installation and quality control — as a single point of contact.
Site assessment & planning
Understanding the site, constraints and compliance requirements before work begins.
Permits & approvals
Managing the approvals needed to get the project moving.
Excavation
Preparing the site to the standard the finished installation requires.
Subcontractor management
Coordinating trades so the project runs to program.
Material & TGSI supply
Sourcing compliant materials and tactile indicators for the job.
Installation
Supply and installation of the walkway and TGSIs on site.
On-site supervision
Keeping the works on track and to specification.
Quality management
Checks throughout to confirm the outcome meets the standard.
Final delivery
Project handover and sign-off, ready for use.
We manage everything
From the first site assessment through to final quality checks, we run the complete project — audit, design, supply, installation and delivery — as a single accountable team.
Or we work alongside your team
Already have contractors or consultants engaged? We can slot in as the accessibility and TGSI specialist within your existing project, working collaboratively with the people already on site.
Built for commercial and private projects alike.
Get in touch for an audit, quote or project discussion.
Tell us about your site and we'll come back with next steps — whether that's a standalone audit or a fully managed installation.