Property Development Timeline Breakdown: How Long Does It Really Take?

How Long Does a Property Development Take?

The honest answer: 12 to 18 months for a typical small-scale project like a duplex or townhouse development.

Some projects move faster. Some take longer. The timeline depends on council approval speed, construction complexity, and how well you prepare before you start.

Here is a realistic month-by-month breakdown so you know exactly what to expect.

The Full Timeline: Month by Month

Months 1 to 2: Site Search and Due Diligence

What happens:

• Research target areas and identify potential development sites
• Analyse 10 to 20 sites per week using zoning maps, comparable sales, and council guidelines
• Shortlist two to three strong sites and run quick feasibility studies
• Make an offer on the best site, subject to due diligence
• During due diligence (14 to 21 days): engage a town planner, order a site survey, get a soil test, confirm services

What can slow this down:

• Being too picky (waiting for the "perfect" site instead of a good one)
• Not having clear criteria for what you are looking for
• Skipping the town planner pre-consultation

Realistic timeframe: 4 to 8 weeks

Months 2 to 3: Design and Pre-DA Preparation

What happens:

• Architect or draftsperson designs the development based on council requirements
• Town planner pre-consults with council to identify any issues before lodging
• Engineering and stormwater reports are prepared
• Detailed feasibility is finalised with confirmed construction quotes

What can slow this down:

• Council pre-consultation reveals unexpected constraints (heritage overlay, tree preservation, neighbour setback issues)
• Multiple design revisions to fit council requirements
• Slow specialist turnaround times

Realistic timeframe: 3 to 6 weeks

Months 3 to 5: Development Approval (DA)

What happens:

• Town planner lodges the DA with council
• Council reviews the application, may request additional information
• Neighbour notification period runs (if required — usually 14 to 28 days)
• Council issues determination (approval, approval with conditions, or refusal)

Typical approval timeframes by pathway:

For small-scale projects (subdivisions, duplexes, small townhouses), most DAs fall in the 40 to 90 business day range.

What can slow this down:

• Neighbour objections (especially for overlooking, privacy, or parking concerns)
• Council requesting additional reports (traffic, acoustic, heritage)
• Incorrect or incomplete documentation in the original lodgement
• Council staff workload and processing delays

Realistic timeframe: 2 to 4 months

Months 5 to 6: Post-Approval and Pre-Construction

What happens:

• Obtain Construction Certificate (CC) — 2 to 4 weeks
• Finalise builder contract (fixed-price recommended)
• Arrange construction finance and draw-down schedule
• Appoint quantity surveyor for stage inspections
• Builder prepares construction schedule and orders materials

What can slow this down:

• DA conditions requiring additional work before CC can be issued
• Builder availability (popular builders book out months in advance)
• Finance delays (bank valuations, documentation requirements)

Realistic timeframe: 4 to 8 weeks

Months 6 to 12: Construction

What happens:

• Site preparation, demolition (if required), and excavation
• Foundations and slab
• Framing
• Roof and lock-up
• Internal fit-out (plumbing, electrical, plastering)
• Finishing (kitchen, bathrooms, flooring, painting)
• External works (landscaping, driveway, fencing)
• Stage inspections by quantity surveyor at each milestone

Typical construction timeframes:

What can slow this down:

• Weather delays (rain, extreme heat)
• Material supply issues
• Builder workforce shortages
• Design variations during construction (avoid these — they cost time and money)
• Council inspection delays

Realistic timeframe: 6 to 10 months

Months 12 to 15: Subdivision, Sale, and Settlement

What happens:

• Occupation Certificate issued (confirms the building is ready to occupy)
• Subdivision plan prepared by surveyor and lodged with council
• Council endorses subdivision plan
• Land titles office issues new individual titles
• Properties listed for sale (or pre-sold off the plan during construction)
• Settlement occurs, finance is repaid, profit is distributed

What can slow this down:

• Subdivision plan corrections or council queries
• Slow land titles processing (varies by state — some take weeks, others months)
• Buyer finance delays at settlement
• Slow market conditions reducing buyer demand

Realistic timeframe: 2 to 4 months

Total Project Timeline Summary

How to Speed Up Your Timeline

1. Use a town planner from day one. Pre-consultation with council before lodging your DA eliminates surprises and reduces back-and-forth.
2. Choose CDC-eligible projects when possible. Complying development cuts your approval time from months to weeks.
3. Lock in your builder early. Good builders are booked out. Start the conversation during your DA phase so construction can start immediately after CC is issued.
4. Minimise variations during construction. Every change costs time and money. Finalise your design before construction starts.
5. Run processes in parallel. For example, your surveyor can prepare the subdivision plan during construction, not after.

FAQs

What is the fastest a small development can be completed?

If you use a complying development pathway and a builder who is ready to start, you could potentially complete a duplex project in 9 to 12 months. This requires everything to run smoothly with no delays.

What causes the most delays in property development?

Council approval is the most common source of delay, followed by construction delays (weather, materials, builder availability). Poor preparation — submitting incomplete DAs or choosing the wrong site — causes the most avoidable delays.

Can I start selling before construction is finished?

Yes. Some developers sell off the plan during construction. This locks in a buyer and reduces your risk. However, you may achieve a higher price by selling a completed product that buyers can walk through.

How long does subdivision take after construction?

Subdivision typically takes 4 to 12 weeks after the occupation certificate is issued. The exact timeframe depends on your surveyor, council processing times, and the state land titles office.

Is a 12-month income replacement timeline realistic?

Yes, particularly if you use wholesale strategies for your first deal. Wholesale deals can be completed in 4 to 8 weeks. A JV subdivision or small development deal can be completed within 12 to 18 months. Some students start earning from deals within their first year by combining wholesale with development.

Want a system that makes these timelines predictable?

Think Property Club's 4S Framework gives you the structure, strategies, specialists, and support to move through each phase with confidence.

[Register for our free webinar →]

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