The single longest-running RFI in NSW development applications.
Biodiversity Development Assessment Reports are required under the NSW Biodiversity Offsets Scheme for development that triggers the scheme threshold or affects an area of outstanding biodiversity value. A BDAR documents the biodiversity values on your site, the impacts of the proposed development, the measures to avoid and minimise those impacts, and the biodiversity credits required to offset residual impact.
It's also one of the most technically demanding documents in the NSW assessment system — and consistently the document that holds up DAs the longest. A BDAR with deficient survey effort, inadequate impact assessment, or unsupportable offset calculations doesn't just generate an RFI. It can take months to resolve, and in serious cases requires fresh field work in the next available seasonal survey window.
The cost of getting a BDAR wrong is measured in seasons, not weeks.
BDAR delivery coordinated through Eko's specialist network.
BDARs in NSW must be prepared by a Biodiversity Assessment Method (BAM) accredited assessor. We coordinate BDAR preparation through trusted accredited assessors in our specialist network, managed under Eko's project management so you have one point of contact and one accountable party.
- Feasibility assessment. Before any field work is commissioned, we review the site against the Biodiversity Offsets Scheme threshold, the Biodiversity Values Map, and any relevant Areas of Outstanding Biodiversity Value. Many sites can avoid the BDAR pathway entirely with the right project design. Aand where they can't, we identify the assessment scale required up front.
- Survey scoping. The BAM specifies survey effort by vegetation community and threatened species. We scope the field program against the seasonal survey windows that apply to your site so we know whether your project can lodge this year or has to wait for the next survey window. Hard truths up front are cheaper than discovered constraints six months in.
- Offset strategy. Where biodiversity credits will be required, we identify the offset options. Options like credit purchase, like-for-like land-based offsets, or contribution to the Biodiversity Conservation Trust. We use these to model the cost implications before construction is committed. Offset cost is often the largest single environmental line item on a development.
- BDAR preparation and lodgement. The full BDAR document, prepared to the standard required by the NSW Department of Climate Change, Energy, the Environment and Water (DCCEEW), coordinated with the broader DA documentation so internal consistency is maintained across the application.
Where project management adds value
The most common BDAR failure isn't a technical one, it's a coordination one. The ecological assessment doesn't match the design plans. The avoid-and-minimise measures conflict with the engineering drawings. The offset strategy doesn't reflect the construction footprint. These aren't failures of the BAM assessor; they're failures of integration between disciplines.
When Eko manages the environmental workstream of your DA, the BDAR is prepared in coordination with the design team, the civil engineers, and the construction methodology. Internal consistency is Eko's project management primary deliverable.
What it costs
BDAR fees are highly variable depending on site size, vegetation complexity, seasonal survey requirements, and offset calculations. We provide a fixed-fee quote within five business days of discussing your specific project needs, including a timeline that accounts for seasonal survey windows.