Custom Home Price Guide

Cost Estimates for Your Next Project

Planning a new home, extension, or renovation in Melbourne?

Use the ROC Homes’ cost calculator to generate an indicative construction range based on your dwelling size, site conditions, specification level, energy requirements and selected services.

The result is intended as an early budgeting guide. Your final construction cost will depend on the completed design, engineering, soil conditions, planning requirements, selections and site-specific works.

Free to use. Built for Melbourne’s residential market. No guesswork—just informed planning.

Have architectural plans already? We can provide you with a more tailored estimate based on your plans. Book a Free Consultation with the ROC Homes team to talk through your project, timeline, and next steps.

Instant Build Estimate

Custom Build Cost Calculator

Configure your project specifications below to calculate an indicative preliminary budget range.

1. Project & Site Details

Dwelling Type

Number of Storeys

Slope of Land

Land Size (m²)

Dwelling Size (m²)

💡 Guideline: 3-bed (≥220m²), 4-bed (≥260m²), 5-bed (≥300m²). Add +30m² for Theatre, +15m² for Extra Bath, +20m² for Extra Garage.

2. Finishes & Inclusions

Specification Level

Energy Efficiency

3. Additional Services

Architectural Design Full concept-to-permit drafting Landscaping Package Paving, turf, boundary works Demolition & Site Clear Existing dwelling removal and site preparation to construction ready Knockdown Concierge Utilities, subdivision & building permit coordination Custom Variations? Deviations from standard specification schedule Basement Required? Underground parking / storage

Preliminary Estimate

Preliminary Build Estimate

$1,078,000 – $1,099,560

*Inclusive of GST. Indicative preliminary guide based on selections.

Itemized Breakdown

Base Build ($2,800/m²): $896,000

Energy Upgrade: $0

Slope Allowance: $93,000

Design Services: $40,000

Landscaping Allowance: $44,000

Demolition Allowance: $0

Concierge Service: $5,000

ROC Homes delivers architecturally tailored custom residences across Victoria. All estimates are subject to finalised architectural plans, engineering drawings, geotechnical survey, soil test, and council permits.

4. Request Full Estimate

Submit your details below to receive your itemized preliminary estimate report and complimentary project feasibility information.

First Name *

Last Name

Mobile Number *

Email Address *

Intended Start Date

Do you currently own this land?

Property Address *

Want expert feedback on your results?

Book a free consultation with the ROC Homes team to talk through your project, timeline, and next steps.