What Does a Preliminary Planning Assessment Tell You? A NSW Breakdown
- Marisa Watterson

- Apr 6
- 8 min read
Everything a PPA reveals about your site - and how an upfront feasibility review prevents thousands in unusable architectural drafts and rejected DAs.
Quick Answer
A Preliminary Planning Assessment (PPA) - also called a Preliminary Planning Report - is an upfront feasibility review prepared by a qualified town planner.
Under the NSW planning framework (Environmental Planning and Assessment Act 1979), a PPA tells you precisely what you can and cannot build on a property before committing capital to architectural drawings, land surveys or engineering reports.
Specifically, a NSW Preliminary Planning Assessment identifies:
Zoning & Permissibility: Land use zoning under the relevant Local Environmental Plan (LEP) and permissible uses with or without consent.
Planning Overlays: Constraints including bushfire prone land, flood planning areas, heritage conservation areas, and biodiversity values.
Statutory Development Controls: Maximum building height, Floor Space Ratio (FSR), boundary setbacks, minimum lot size, site coverage and landscaped area.
Approval Pathways: Eligibility for fasttrack Complying Development (CDC) under the State Environmental Planning Policies (SEPPs) versus a standard Development Application (DA) through local council.
Required Documentation: A complete checklist of mandatory consultant reports (eg Clause 4.6 variation statements, arborist reports, stormwater designs, BASIX).
Strategic Risk Mitigation: Non-compliance risks, potential council objections and design alternatives to maximise approval odds.

Metric | Details |
Typical Cost | $420 – $1,800 + GST (depending on site complexity) |
Turnaround (StraightLine Planning) | 24 – 72 hours |
Document Length | 15 – 50+ pages (tailored to scope) |
Optimal Stage | Pre-purchase due diligence or prior to briefing an architect/draftsperson |
In This Guide
What Is a Preliminary Planning Assessment?
A Preliminary Planning Assessment (PPA) is a comprehensive statutory assessment prepared by a town planning professional. It interprets the layers of NSW planning legislation governing a specific parcel of land.
Rather than relying on basic Section 10.7 Planning Certificate summaries or sales marketing material, a PPA evaluates how local and state planning controls interact with your specific development objective (such as a dual occupancy, secondary dwelling, subdivision, home business or commercial change of use).
The Due Diligence Principle: Just as you would not purchase a residential property without a structural building and pest inspection, you should not initiate property acquisitions or architectural designs without a preliminary town planning assessment.
The 12 Critical Details a NSW PPA Identifies
A thorough NSW preliminary planning assessment examines twelve core components:
1. Legal Description & Title Encumbrances
Confirms the Lot and Deposited Plan (DP) / Strata Plan (SP) reference, local government area (LGA), total site area, and primary dimensions. It cross-examines known site data for registered easements (such as drainage or overland flow paths) and Section 88B covenants that restrict building envelopes or construction materials.
2. LEP Land Use Zoning
Identifies the property's statutory land use zone under the relevant Council Local Environmental Plan (eg R2 Low Density Residential, R3 Medium Density Residential, E1 Local Centre or MU1 Mixed Use). The report defines the Land Use Table to confirm whether your intended development is Permitted without consent, Permitted with consent, or Prohibited.
3. State Planning Instruments (SEPPs)
Assesses how state-level environmental planning policies intersect with local rules. Key state policies frequently override restrictive local council instruments, including:
Housing SEPP: Dual occupancies, multi-dwelling housing, secondary dwellings an affordable housing pathways.
Codes SEPP (State Environmental Planning Policy (Exempt and Complying Development Codes) 2008): Fast-track certification standards.
Transport and Infrastructure SEPP: Classified road access, acoustic buffers, and infrastructure headworks.
Resilience and Hazards SEPP: Coastal management, hazardous industries, and land contamination screening.
4. Environmental & Spatial Overlays
Identifies environmental and statutory overlays extracted from council spatial layers and NSW Planning Portal datasets:
Heritage items, archaeological items, and Heritage Conservation Areas (HCAs).
Flood Planning Areas, probable maximum flood (PMF) levels, and overland flow paths.
Bushfire Prone Land categories and buffer zones (triggering Planning for Bush Fire Protection standards).
Terrestrial Biodiversity and High Environmental Value (HEV) vegetation mapping.
Acid Sulfate Soils (Class 1 to 5) and airport noise contours (ANEF / ANEC levels).
5. Numerical Development Controls
Calculates the exact quantitative thresholds set out in the relevant Local Environmental Plan and Development Control Plan (DCP):
Maximum Building Height: In metres and statutory storeys.
Floor Space Ratio (FSR): The ratio of total gross floor area (GFA) relative to the site area.
Setbacks: Minimum primary street, secondary street, side, and rear setbacks.
Site Coverage & Deep Soil: Permeable area, private open space, and tree canopy quotas.
Subdivision Parameters: Minimum lot size (MLS), minimum lot width, and battle-axe handle dimensions.
6. Vehicle Access & Parking Rates
Determines on-site car parking requirements, driveway crossing specifications, Sight Distance requirements (AS 2890.1) and parking space dimensions for residential industrial or commercial land uses.
7. Physical Site Constraints & Hazards
Examines site-specific site conditions, including cross-fall, slope stability, retaining wall limitations, stormwater discharge points (inter-allotment drainage vs. street drainage), and visual privacy impacts on adjoining properties.
8. Commercial & Industrial Operational Rules
For non-residential uses (eg medical centres, fitness centres, food and drink premises), the report outlines permissible trading hours, patron capacity thresholds, acoustic mitigation triggers, waste management rules and commercial loading zone requirements.
9. Assessment Against Concept Plans
When concept sketches or preliminary ideas are provided, the town planner conducts a compliance audit against primary controls. The report highlights compliant elements, technical variations, and areas that require design modifications.
10. Recommended Approval Pathway
Evaluates the most cost-effective and time-efficient planning pathway:
Exempt Development: Minor building works requiring no approvals.
Complying Development Certificate (CDC): Fast-tracked private or council certifier sign-off (issued within 20 working days where strictly compliant).
Development Application (DA): Merit-based assessment lodged with local council.
11. Planning Risks & Variation Justifications
Flags areas where non-compliance cannot be avoided. If a proposal breaches a principal development standard in an LEP (eg. height or FSR), the report evaluates whether a formal Clause 4.6 Variation Statement has a reasonable prospect of success.
12. Strategic Lodgement Roadmap & Consultant List
Outlines the required submission sequence and compiles the exact list of specialist reports required for lodgement, such as:
Statement of Environmental Effects (SEE).
Architectural package (site plan, elevations, shadow diagrams).
Civil stormwater and sediment control plans.
Arboricultural Impact Assessment (AIA).
Geotechnical and contamination assessments (Stage 1 Preliminary Site Investigation).
Bushfire Assessment Report / BAL Certificate.
Acoustic Assessment.
NSW Approval Pathways Compared
Understanding the statutory mechanism for your development dictates both project holding costs and delivery timeframes.
Approval Pathway | Approving Authority | Typical Timeframe | Flexibility / Discretion |
Exempt Development | Self-assessed (No application) | Immediate | Zero (Must meet 100% of standard criteria) |
Complying Development (CDC) | Private Certifier or Council | 10–20 working days | Zero (100% quantitative compliance required) |
Development Application (DA) | Local Council / Local Planning Panel | 2–9+ months | High (Council can assess merit and variations) |

PPA vs SEE vs Feasibility Study
Property owners often confuse pre-planning feasibility with formal lodgement documents. Here is how they differ:
Document Type | Purpose | When It Is Commissioned | Contains Formal Arguments to Council? |
Preliminary Planning Report (PPR) | Internal strategy and feasibility guide. Establishes rules, risks, and options. | Prior to land purchase or design work. | No (Guidance for client & design team). |
Statement of Environmental Effects (SEE) | Formal statutory justification submitted to council with a DA. | At the completion of architectural design. | Yes (Formal submission document). |
Financial Feasibility Study | Cost-benefit modelling, construction pricing, tax, and sales cash flow projections. | Before site acquisition or funding approval. | No (Financial instrument). |
What a PPA Does NOT Tell You
To maintain a clear development strategy, recognise what falls outside a town planning report's scope:
Guaranteed Council Approval: Council assessment officers and planning panels retain statutory discretion on merit-based DAs. A PPA identifies risks and maximises approval likelihood, but cannot bind council decisions.
Detailed Architectural Plans: A PPA provides parameters, height envelopes, and setbacks; your architect or draftsperson uses these to generate the design.
Structural & Civil Engineering: Stormwater pipe hydraulics, structural beam sizing, and soil-bearing calculations require certified structural/civil engineers.
Total Construction Costing: A PPA details planning feasibility, not quantity surveying or construction cost estimates.
When Do You Need a PPA in NSW?
Pre-Purchase Property Due Diligence: Run a PPA during cooling-off or contract negotiation periods to verify whether development claims made in real estate listings are lawful.
Before Briefing an Architect or Draftsperson: Save thousands in redesign costs by giving your designer defined height limits, building envelopes, and setback boundaries on day one.
Site Subdivision: Confirm minimum lot size, frontages, and infrastructure connection viability before paying for boundary surveys and civil engineering designs.
Commercial Change of Use: Verify that an existing tenancy permits your intended business activity (such as converting retail premises to food and drink or medical rooms) and identify car parking contribution shortfalls.
Navigating Site Overlays: Assess complex properties affected by Bushfire Prone mapping, overland flood controls, or Heritage Conservation Area rules.
Following a DA Refusal or Council RFI: Review the planning reasons behind a council refusal or Request for Information to structure an amended design or Section 8.2 Review.
How to Read and Action Your Report
When you receive your Preliminary Planning Report from StraightLine Planning, use the following review process:
Step 1: Check Executive Summary
Review feasibility confirmation, recommended approval pathway (DA vs. CDC), and top-tier risks.
Step 2: Review Numerical Control Tables
Cross-reference your spatial needs against maximum FSR, building heights, and setbacks.
Step 3: Check Environmental & Hazard Overlays
Confirm whether site constraints (bushfire, flood, heritage) trigger specialist consultant reports.
Step 4: Issue Parameters to Your Design Team
Provide the setbacks, building envelope, and height limits directly to your architect or draftsperson.
Frequently Asked Questions
What does a Preliminary Planning Assessment tell you?
A PPA details what can lawfully be developed on a parcel of land in NSW. It details the LEP zoning, state and local planning policies, development standards (height, FSR, setbacks), site-specific constraints (bushfire, flood, heritage), the optimal approval pathway (CDC vs DA), and the specialist reports needed for approval.
How much does a Preliminary Planning Assessment cost in NSW?
At StraightLine Planning, fixed-fee Preliminary Planning Reports start from $420 + GST for standard residential properties. More complex multi-dwelling, commercial, or constrained sites are quoted based on scale. Traditional planning consultancies often charge $800 to $2,500+ for equivalent assessments.
What is the turnaround time for a PPA?
StraightLine Planning delivers standard Preliminary Planning Assessments within 24 to 72 hours, enabling fast decisions during contract due diligence or project feasibility reviews.
Is a PPA required by law before lodging a Development Application?
No. A PPA is not a mandatory lodgement document, but embarking on a development without one exposes you to the risk of designing a non-compliant scheme, resulting in costly architectural revisions, protracted council requests for information (RFIs), or outright refusal.
Can a PPA tell me if my proposal can go through CDC?
Yes. One of the primary functions of a PPA is screening your project against the State Environmental Planning Policy (Exempt and Complying Development Codes) 2008 to determine whether you can avoid council delays and secure approval via a private certifier in 10 to 20 days.
NSW Planning Terminology Glossary
PPA (Preliminary Planning Assessment): Upfront statutory feasibility document determining site potential and planning controls.
DA (Development Application): A formal application submitted to local council seeking development consent under Part 4 of the EP&A Act 1979.
CDC (Complying Development Certificate): Fast-track approval issued by council or an accredited private certifier for development meeting strict statutory criteria.
SEE (Statement of Environmental Effects): A mandatory formal report submitted with a DA outlining how a development proposal addresses planning controls and minimises environmental impacts.
LEP (Local Environmental Plan): Council's primary legal planning instrument outlining zoning, FSR, maximum heights, and principal development rules.
DCP (Development Control Plan): Council guidelines providing detailed design controls (setbacks, landscaping, private open space, car parking).
SEPP (State Environmental Planning Policy): NSW Government planning legislation addressing matters of state significance and often overriding local council LEPs.
FSR (Floor Space Ratio): The ratio of the total gross floor area of all buildings on a site relative to the total area of the allotment.
Clause 4.6 Variation: A formal legal submission within a DA seeking an exception to a development standard contained in an LEP.
Section 10.7 Certificate: A statutory certificate issued by council confirming the zoning, planning controls, and hazards affecting a specific allotment.
Need Clear Planning Feasibility for Your NSW Project?
StraightLine Planning provides fast, fixed-fee Preliminary Planning Reports across Sydney and regional New South Wales. Reports are delivered within 248 to 72 hours, giving you the statutory clarity and risk assessment needed before commissioning designs or exchanging contracts.




