Retain the front house and build behind it: access, live services, renovation scope, tenants, carports and staged handover in Victoria.
Retain the front house only after testing how both homes will work on the finished site. A backyard footprint is the start of the design brief: the retained home also needs workable access, services, outdoor space and a clear renovation scope. Establish these before locking the rear dwelling plan or comparing building prices.
DollarBuild focuses on design and delivery. Answers explain general Victorian processes and preparation, not a site approval, building quotation or personal tax or credit recommendation. Requirements depend on the property, intended use and current instruments.
Commission measured survey information, service locations and a condition record of the retained home.
Show boundaries, access, parking, services and outdoor spaces for both homes, including any intended subdivision.
Separate resident access from work areas and schedule temporary services, demolition and reinstatement.
Keep front renovation, rear construction and shared site works identifiable, with owners and exclusions for each.
Compare both complete site plans before choosing. Retention may avoid replacing a usable house, but it can constrain access, setbacks, servicing and the rear layout. Ask for a condition assessment and a priced renovation scope, then assess the retained home on its smaller finished lot. The decision should include the cost of adapting that home, not just the saving from avoiding demolition.
Link to this answer · 01Access determines how the finished dwelling and the construction site can function. Record the clear width, eaves, downpipes, meters, trees, gradients and turning space, rather than measuring fence to wall once. The designer must assess the required permanent access, while the builder checks deliveries and equipment. A route that accommodates a person is not evidence that a module, crane or concrete truck can use it.
Link to this answer · 02It depends on the area schedule in the quote. Ask for separate internal living, garage or carport, porch and other covered areas, with the measurement basis shown. A headline square-metre rate is not comparable when one proposal includes a carport and another describes internal floor area only. Check the drawings against the schedule before using either number in a construction budget or a resale brief.
Link to this answer · 03Do not assume they can. Review the lease, lawful access arrangements, services, safety separation and the practical disruption with the property manager and builder. Victoria’s entry rules also cover the garden and outside areas; ownership does not provide unrestricted construction access to leased premises. Prepare an agreed occupancy and works plan, and model any vacancy that the plan requires before counting rent through the build.
Link to this answer · 04List the work needed for the retained home to function after the rear build: repairs, any altered parking, external walls exposed by removal work, drainage, fences, landscaping and service changes. Separate cosmetic selections from safety or permit-related work. Have the builder identify what can only be confirmed after opening up. This turns a single renovation allowance into a scope that can be checked and priced.
Link to this answer · 05Check approvals and hazardous materials before scheduling removal. Older structures can contain asbestos, including parts that look like minor works. Have the responsible contractors identify what the work may disturb and arrange appropriate assessment and removal before other trades enter the area. In the programme, show service isolation, removal, clearance where required and waste disposal as separate tasks rather than a single demolition date.
Link to this answer · 06Create a service-change plan before excavation. Mark which pipes and cables serve the front home, which need relocating, and when temporary or permanent connections will be made. Assign responsibility for outage notices, trades and making good disturbed areas. Existing utility drawings help, but the actual position needs confirmation. Do not schedule a trench through the only live connection without an agreed changeover plan.
Link to this answer · 07Possibly, if its access, services and required approvals can be completed independently. Finishing the paintwork does not establish that the front property can be occupied, separately sold or released from the lender’s security. Ask the builder for a safe staged works plan and the surveyor and conveyancer for the relevant completion and title requirements. Carry each dependency into the sale and cash-flow schedule.
Link to this answer · 08Decide the intended ownership and exit arrangement early. A home kept on one title and a separately saleable lot can need different access rights, service arrangements and documentation. Ask the planner and licensed land surveyor to test the intended subdivision alongside the building concept. Designing first and solving the boundary later can require changes to parking, windows, fences, service routes or the house itself.
Link to this answer · 09Send the address, title and plan if available, a survey, existing and proposed drawings, site photographs, known service information and the intended use of both homes. State whether the front home is occupied and whether separate titles are intended. Identify which documents are approved and which are sketches. We can then discuss the design and delivery scope and the investigations still needed for a written proposal.
Link to this answer · 10The official sources support the rules identified in the answers. Sequencing and checklists are DollarBuild’s practical explanations. Follow the source and obtain project-specific confirmation before relying on a requirement.
Consumer Affairs Victoria · Source checked 2026-09-22
Planning, building permits and the owner’s appointment of a building surveyor are distinct responsibilities.
Consumer Affairs Victoria · Source checked 2026-09-22
Entry rules concern the rented property, including outdoor areas, and do not create a general construction right.
Consumer Affairs Victoria · Source checked 2026-09-22
Compare the described work and check the contracting business and pre-construction terms.
WorkSafe Victoria · Source checked 2026-09-22
Identify material that may be disturbed and arrange competent assessment and lawful removal.
South East Water · Source checked 2026-09-22
Locate assets and check the water corporation’s consent before designing work near them.
Consumer Affairs Victoria · Source checked 2026-09-22
Contract completion and the required final permit documents should both be checked.
The downloads contain the same questions, answers and source links as these pages. Original explanatory text is CC BY 4.0; official source material retains its own terms.
Buying and feasibility: PremiumREA’s investor FAQShare your address, drawings, intended use and what is already confirmed. We can discuss the design and delivery scope and the information needed for a written proposal.