Aeronautical Impact Assessment Services for Development Approvals

Strategic Air provides specialist Aeronautical Impact Assessments (AIA) for developments located near airports and flight paths. Our airspace assessment services support planning certainty for projects affected by aviation constraints, ensuring proposals are technically robust and regulator-ready from the outset.

We analyse OLS, PANS-OPS, and prescribed airspace to define safe, compliant building and crane heights, support Controlled Activity applications, and de-risk planning approvals through a clear, defensible aviation impact assessment process. Our clients include property developers, planners, architects, and infrastructure proponents across Australia who need clear, defensible aviation advice that planning authorities and regulators will accept.


Development Applications & Aviation
Airspace Consulting

If your project sits within airport influence areas or active flight paths, engage Strategic Air early to understand constraints, approval pathways, and realistic height outcomes. Our aviation specialists help you move forward with clarity and confidence – give us a call on 1300 399 426, email info@strategicair.com.au, or get in touch with us through our online contact form.

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Aeronautical Impact Assessments for Developments

We bridge the gap between airport operators, CASA/Airservices, and your planning team, translating complex airspace constraints into practical height limits, crane envelopes, and staging options that actually work on a construction program. Each aeronautical impact assessment is tailored to the planning context, ensuring aviation risks are identified early rather than emerging late as approval-blocking issues.

Instead of “airport concerns” landing late in the process and forcing redesign, we identify the controlling surfaces early, quantify the real constraints, and set out a credible pathway for both permanent structures and temporary works. This early-stage airspace assessment approach supports efficient design development and smoother
planning outcomes.

Our AIAs are written to do a specific job: help your DA, SSDA, or Controlled Activity Application get through without surprises. That means clear RL tables, diagrams that align with your architectural set, and a risk narrative that addresses safety, efficiency, and regularity of operations in language regulators recognise. The result is a
report your team can attach to submissions with confidence – and a reduced chance of last-minute height cuts, crane restrictions or approval delays driven by airspace issues.

Aviation Constraints and Developments

We assess developments against the key aviation protection surfaces that affect approvals near airports, including OLS, PANS-OPS and declared prescribed airspace. This identifies baseline obstacle clearance requirements, likely approval triggers and the pathway for buildings, rooftop plant and construction cranes.

Our assessments determine what can be built as of right, what may create an aviation risk issue, and what may trigger controlled activity under the Airports Act and Regulations. We provide regulator-ready RL tables, clear exceedance advice and practical mitigation measures covering height, staging, lighting, marking and crane limits.

The result is a clear, defensible aviation impact assessment that reduces approval risk and supports planning, design and construction decisions.

Precision OLS & PANS-OPS Modelling

Strategic Air undertakes Aeronautical Impact Assessments using advanced 3D modelling tools to accurately construct OLS and instrument procedure surfaces from published CASA and ICAO parameters. Each surface is referenced to AHD/RL and interrogated against your design geometry to identify exceedances, controlled activity triggers, and approval pathways. The result is regulator-ready evidence — clear, defensible and aligned with your architectural and engineering documentation.

Telecommunications & Infrastructure

Strategic Air supports telecommunications infrastructure projects with specialist aviation advice that strengthens planning and reduces approval risk. We assess proposed towers against relevant airspace protections and operational aviation considerations, providing clear, evidence-based guidance to inform siting, height, design and stakeholder engagement.

This advice is valuable not only near certified aerodromes and major airports, but also for regional and remote sites outside conventional airport environments, where helicopter operations, low-level flying, local landing areas and other airspace interactions may still be material to safe and supportable development outcomes.

Wind Farms

Strategic Air provides specialist aviation and airspace advice for wind energy developments. We assess proposed turbine layouts, tip heights and wind farm footprints against aviation safety considerations to identify potential constraints early and support informed project design.

Our assessments consider interactions with protected airspace, low-level aviation activity, helicopter operations, emergency services access, aerial agriculture and nearby aerodromes. This ensures wind farm developments are evaluated not only against formal airspace protections but also against the practical realities of aviation operations in regional environments.

The outcome is clear, evidence-based advice that helps developers, planners and decision-makers understand aviation impacts and progress wind energy projects with greater confidence and compliance.

Space Launches & Airspace

Space launch activities require coordination with the aviation system to ensure aircraft remain clear of launch trajectories, hazard areas and debris zones. Strategic Air supports launch operators with aviation risk assessments, CASA Area Approval applications and airspace management planning.

We assist in defining launch hazard areas, coordinating temporary airspace restrictions and engaging with aviation regulators and operators to ensure launch activities are safely integrated with Australia’s airspace system.

What Are OLS and PANS-OPS Surfaces?

The Obstacle Limitation Surface (OLS) and PANS-OPS instrument procedure surfaces are the two primary 3D airspace constraint frameworks governing height near airports. OLS establishes the baseline obstacle environment for take-off, landing and visual manoeuvring, while PANS-OPS protects published instrument procedures such as ILS and RNP approaches and often becomes the controlling constraint in dense urban settings. An OLS assessment defines the initial development height envelope and identifies where more restrictive instrument procedure surfaces or controlled activity provisions apply; if a proposal penetrates protected volumes—building elements, rooftop plant, antennas or construction cranes—it becomes an obstacle issue and may trigger a controlled activity approval pathway.

We use specialist 3D modelling software to construct applicable surfaces from published parameters, align them to a common AHD/RL datum and coordinate system, and interrogate your design geometry through an auditable workflow. This includes testing true high points and modelling temporary works scenarios—crane envelopes, slew radii, hook heights and climb staging—so construction is treated as a managed constraint. Outputs are regulator-ready: traceable RL exceedance schedules, drawings aligned with your architectural set, and a clear compliance statement identifying intrusions and any controlled activity submission or mitigation requirements within the broader aeronautical impact assessment.

Understanding the Constraints

In addition to OLS and PANS-OPS protections, Sydney Airport also has declared protected airspace under the Airports Act and Airports (Protection of Airspace) Regulations. This airspace is defined through a series of protection charts that safeguard critical navigation, surveillance and operational systems used for aircraft operations.

These declared protection surfaces include areas associated with instrument procedures, navigation aids, radar terrain clearance, lighting systems and other operational infrastructure. Development that penetrates these surfaces may trigger a Controlled Activity assessment, requiring further aeronautical analysis to determine whether the proposal can be safely accommodated.

In regional Australia, aviation activity is not limited to major certified airports. Many towns, communities and industries rely on smaller aerodromes called Authorised Landing Areas (ALAs) - or uncertified aerodromes that support regular fixed-wing and helicopter operations.

Certified aerodromes operate under a formal regulatory framework with defined infrastructure, obstacle protection and operational standards. Uncertified aerodromes have fewer regulatory requirements, but they can still support frequent aviation activity including charter services, aeromedical operations, aerial work and general aviation.

Development near these facilities can still introduce aviation risks, particularly where structures affect aircraft approach paths, circuit operations or low-level flight activity. As a result, proposed infrastructure such as towers, wind turbines, cranes and tall buildings near regional aerodromes or landing areas may require aviation assessment to ensure safe and practical ongoing aircraft operations..

Strategic Helicopter Landing Sites (SHLS) are important helicopter facilities that support essential access, often in dense urban areas or near critical infrastructure such as hospitals and emergency services locations. These sites can create aviation constraints that are separate from traditional airport-related protections.

Development near an SHLS may affect helicopter approach and departure paths, obstacle clearance and operational safety. As a result, proposed buildings, cranes and other structures near these sites may require aviation review to determine whether helicopter access can be maintained and whether further assessment or consultation is required.

Under the Airports Act and Airports (Protection of Airspace) Regulations, a structure or activity that penetrates OLS, PANS-OPS or other prescribed airspace may become a Controlled Activity and require formal assessment. Applications are lodged with the relevant airport operator, but the decision pathway depends on both which protected surface is affected and whether the intrusion is short-term or long-term.

Short-term Controlled Activities are generally activities lasting up to 3 months, most commonly tower cranes and temporary construction equipment. Where the short-term intrusion is into OLS or other prescribed airspace other than PANS-OPS, certain delegated officers within the airport-operator company may approve the activity, usually subject to conditions such as height limits, lighting, marking and notification requirements.

Where a short-term activity intrudes into PANS-OPS airspace, the position is different. The airport operator does not determine the application in the ordinary way. Instead, the airport operator consults relevant agencies and refers the matter to the Department / Secretary for decision. The airport operator’s support may be relevant, but it is not the approving authority for standard short-term PANS-OPS intrusions.

Long-term Controlled Activities are generally activities lasting more than 3 months and usually relate to permanent structures such as buildings, towers, rooftop plant or antennas. Where a long-term proposal intrudes into OLS or other non-PANS-OPS prescribed airspace, the airport operator coordinates the technical assessment, but the application is referred to the Department / Secretary for final decision after consultation with relevant agencies.

Long-term intrusions into PANS-OPS airspace are not permitted under the current framework. In those cases, the airport operator may notify refusal of the proposal rather than forward it for approval through the normal process.

In practical terms, this means:

  • Short-term OLS intrusion — may be approved by a delegated airport-operator officer
  • Long-term OLS intrusion — decided by the Department / Secretary
  • Short-term PANS-OPS intrusion — referred by the airport operator and decided by the Department / Secretary
  • Long-term PANS-OPS intrusionnot permitted

Understanding this early helps project teams identify the correct approval pathway, anticipate likely timeframes and determine whether the issue can be managed through the airport operator or requires higher-level regulatory decision-making.

The regulatory framework governing development near airports is currently undergoing review. Draft updates to the Airports (Protection of Airspace) Regulations aim to modernise how aviation constraints are managed as urban development continues to intensify around major airports.

The proposed changes focus on improving clarity around protected airspace surfaces, controlled activity approvals and the assessment process for buildings and construction cranes. They also seek to strengthen coordination between airport operators, regulators and planning authorities to ensure aviation safety considerations are addressed earlier in the development process.

While the reforms are still in draft form, they signal an increased emphasis on early identification of airspace impacts, clearer approval pathways and more consistent assessment requirements. For proponents and project teams, understanding these emerging changes can help ensure future developments remain aligned with evolving regulatory expectations.

Recent Major Projects

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Sydney CBD, NSW

MIRVAC Green Square (Zetland) – Engaged us to deliver an Aeronautical Impact Assessment for a multi-building package within MIRVAC’s Green Square program (project value $2.59bn). Our scope includes OLS, PANS-OPS, and prescribed airspace assessment, Controlled Activity Application support, and on-call advice on crane envelopes and staging
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Sydney CBD, NSW

GREENFORT Capital – Engaged us to deliver an Aeronautical Impact Assessment and airspace-height due diligence for a proposed development influenced by Sydney Airport flight paths. We assessed OLS, PANS-OPS, and prescribed airspace to set clear RL height limits and crane envelopes and map the controlled activity pathway to de-risk planning approvals.
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Burwood, NSW

OMAYA – Engaged us to deliver an Aeronautical Impact Assessment for a high-density redevelopment within Sydney Airport’s broader airspace environment, including Controlled Activity Application support as required. The work assesses OLS, PANS-OPS and prescribed airspace to define compliant RL height limits and crane envelopes and confirms where a controlled activity approval would be triggered.

Our Clients Include

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Get In Touch Today!

Whether you need an aeronautical impact assessment, airspace assessment, OLS assessment, or Controlled Activity Application support, our team is ready to assist. Connect with us via our online enquiry form, call 1300 399 426, or email info@strategicair.com.auto discuss your project requirements with confidence.

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Our Three-Stage Assessment Approach

Strategic Air supports developments that may affect protected airspace through a clear, staged assessment process. We identify constraints early, confirm whether Controlled Activity may apply, and prepare supporting technical advice where needed.

Phase 1 — Preliminary Constraint Review
We review the proposal to identify protected airspace interactions, likely approval triggers and early design constraints.

Phase 2 — Aeronautical Impact Assessment
Where required, we assess the proposal against applicable airspace protections, operational considerations and residual risk.

Phase 3 — Application Support
Where a Controlled Activity Application is needed, we prepare supporting technical input and manage the application process on your behalf.