Development Feasibility Sydney — Know What Your Property Can Do Before You Commit
Most expensive development mistakes happen before construction starts. A proper feasibility prevents wrong site, wrong type, and wrong pathway.
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MBA NSW0476 300 300Quick Answer
Development feasibility studies cost $2,000–$8,000 and include GRV analysis, construction cost modelling, holding costs, profit margin analysis, and a clear go/no-go recommendation. Pre-purchase desktop assessments start at $1,500. Buildana provides feasibility analysis across 5 Western Sydney LGAs.
Know Before You Build — Real Numbers, Not Guesses
We study your block, overlays, services, orientation, and budget before you fall in love with the wrong plan. Buildana's development feasibility service provides a complete financial and planning analysis — Gross Realisation Value (GRV), construction cost modelling, holding costs, profit margin analysis, and a clear go/no-go recommendation.
Duplex, townhouse project, boarding house, commercial development — we give you the numbers before you make the decision. Our feasibility reports include sensitivity analysis (what happens if the market drops 10%?) and break-even calculations so you understand your risk exposure.
We work across Sydney — including all 28 Sydney LGAs — from Western Sydney heartland (Fairfield, Liverpool, Cumberland, Canterbury-Bankstown, Blacktown) through to Parramatta, the Hills, Inner West, North Shore, Eastern Suburbs, Sutherland Shire and the Northern Beaches. Each council area has different FSR, height, lot size, and DCP requirements that directly impact yield and feasibility — our local knowledge ensures accurate assessments.
- Gross Realisation Value (GRV) analysis with local comparables
- Construction cost modelling (±5–10% accuracy)
- Holding cost calculation (interest, rates, insurance)
- Profit margin and ROI analysis
- LEP and DCP planning overlay review
- Sensitivity analysis (±10% market movement)
- Break-even analysis
- Clear go/no-go recommendation
Reviewed by Oliver Alameri
Licensed Builder (NSW 487805C) · Master of Property Development · PhD Student · Building across Western Sydney since 2010
Case Studies — Feasibility in Action
Merrylands — Duplex Unlocked by July 2024 Reforms
A client approached Buildana to assess an R2 block in Merrylands previously assumed to be single-dwelling only. Our feasibility analysis confirmed the site was eligible for dual occupancy under the Low and Mid Rise Housing Policy (July 2024). The block met all lot size, frontage, and FSR requirements for a CDC-approved duplex — a development option the client didn’t know existed.
Fairfield — Flood Overlay Strategy
A property near the Georges River in Fairfield sat within the flood planning area. CDC was not viable — but our feasibility assessment identified the DA pathway with a detailed flood compliance strategy. We coordinated with hydraulic engineers early, demonstrating habitable floor levels above the 1% AEP flood level, and proceeded to a successful DA determination.
Buildana’s Free Initial Assessment
Every feasibility engagement starts with a free initial assessment. We review your site address, zoning, and basic constraints to give you a preliminary view of what’s possible — before any fee is charged.
Free Assessment Includes
- • Zoning confirmation and permitted uses
- • Key overlay checks (flood, heritage, bushfire)
- • Preliminary yield indication
- • Approval pathway recommendation (CDC or DA)
- • Next steps and scope for detailed assessment
Detailed Assessment (Paid)
- • Full LEP/DCP review with constraint mapping
- • Multi-scenario yield analysis
- • Indicative cost and revenue modelling
- • Written feasibility report
- • Recommended build type and project timeline
May 2026 Sydney Development Feasibility Update
Development feasibility numbers shift every quarter — and Q2 2026 has meaningful movements in land cost, S7.11 contributions, build cost and end-value yields. Here's the current realistic framework.
Land cost lens.
Western Sydney 600–800sqm R2/R3 lots: $850k–$1.4M. Inner-ring (Inner West, Sutherland Shire, North Shore) equivalent: $1.6M–$2.8M. Land has been roughly stable to slightly softer in our service area through early 2026.
Build cost (Rawlinson 2026 calibrated).
Single-storey new build: $2,800–$3,500/sqm turn-key. Two-storey: $3,200–$4,200/sqm. Premium custom (architect-led, full spec): $4,500–$6,000/sqm. Add 6.1% for Class M+ footings on reactive clay (about 65% of our jobs).
S7.11 developer contributions.
Per-dwelling contributions in Fairfield/Liverpool/Cumberland/Canterbury-Bankstown/Blacktown have risen 8–14% since 2024. Current range: $20k–$55k per dwelling. Always pull the current schedule before feasibility.
Soft cost stack.
Design and documentation: 3–5% of build cost. DA: $15k–$40k. Approvals (certifier, BASIX, etc.): $4k–$12k. Subdivision (Torrens): $15k–$25k. Selling agent at end: 1.8–2.4% + marketing $8k–$25k.
Holding cost.
Interest on land + construction debt at current 6.5–7.5% rates. Land tax (if applicable). Insurance. Council rates. Typical 18-month duplex project: $80k–$180k holding cost.
Realistic margins.
Well-sourced duplex on R2 in Western Sydney: 18–28% gross margin. Townhouse (3–6 units, R3): 15–25%. Mixed-use small format: 18–30%. Build-to-rent (BTR) hold: 6–8% net yield.
For a no-obligation development feasibility on any Sydney site you're considering, call 0476 300 300 or send the address and we'll run the numbers within 48 hours.
Real Project
Pre-Purchase Feasibility — 152 Smart Street — Fairfield Heights
Client wanted to develop a 620m² R3-zoned lot. Buildana modelled three scenarios: single dwelling KDR, duplex with Torrens title, and boarding house. Duplex was the clear winner for risk-adjusted return.
Client purchased the site for $950K. Duplex completed for $2.156M total. Feasibility study prevented a $180K mistake (boarding house would have required DA and 18-month timeline vs CDC in 12 days).
Have a question about your project?
Talk to our team — free site assessment and fixed-price quote.
How It Works
From First Call to Final Key
You provide site details, development objectives, and budget parameters. We can work from an address alone — no architectural plans needed yet.
⏱We review LEP zoning, SEPP overlays, height limits, FSR, minimum lot sizes, and DCP controls affecting your site across the relevant council.
⏱Detailed construction cost estimates based on current market rates, council approval costs, consultant fees, and holding cost calculations (interest, rates, insurance).
⏱Determine the optimal number of dwellings, GRV based on comparable sales, and rental yield projections. Multiple scenarios compared side by side.
⏱Detailed report with financial summary, sensitivity analysis, risk assessment, and a clear go/no-go recommendation. No ambiguity — you know exactly where you stand.
⏱Our Team
Oliver Alameri
Founder / Director / Builder · MPropDev · PhD Student
Ahmad Alameri
Accounts Manager
Claire Wendell
Project Manager
Estimate Your Build Cost
Use our free calculator to get an instant cost estimate for your project
Cost Guide
| Item | Estimated Range |
|---|---|
| Pre-purchase desktop assessment | $1,500 – $2,500 |
| Single-scenario feasibility (duplex/granny flat) | $2,000 – $3,500 |
| Multi-scenario feasibility (3+ options) | $4,000 – $6,000 |
| Complex development feasibility | $6,000 – $8,000 |
| Urgent / auction-timeline assessment | $2,500 – $4,000 |
| Feasibility update (market re-assessment) | $1,000 – $2,000 |
Prices are indicative for Western Sydney (2025). Actual costs depend on site, specifications, and approvals.
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Frequently Asked Questions
Buildana built our granny flat in just 12 weeks. Fast approvals, great communication, and a beautiful final product. Highly recommend.
Fatima Al-Rashid
Liverpool, NSW
We Build Across Sydney
Headquartered in Western Sydney's Fairfield. Active across all 28 metropolitan Sydney LGAs — from Penrith to the Eastern Suburbs, the Hills to the Sutherland Shire.
Last updated: 24 April 2026
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