How much does a granny flat cost in Australia in 2026?

E2ES fixed prices: 30 m² Compact Studio $110,000 + GST. 60 m² Two-Bedroom $170,000 + GST. 60 m² Dual Living (two independent studios on one footprint) $200,000 + GST. Cash down is ~20% of build cost (~$32k–$52k); the other 80% is a construction loan secured against the new building. All three include permits, slab, frame, cladding, roof, insulation, kitchen, bathroom, flooring, AC, hot water, plumbing and electrical rough-in, and connection to existing mains within 10 m sewer / 15 m cabling.

What is the cheapest granny flat builder in Melbourne?

E2ES's 30 m² Compact Studio at $110,000 + GST is the lowest fixed turnkey price in our July 2026 survey of Melbourne granny flat builders — fully finished, permits and connections included, on an engineered concrete slab. Surveyed competitors' entry turnkey prices start around $133k, and independent 2026 guides put a finished 2-bed at $150k–$255k all-in. Cheaper stickers are kit shells or portable units on steel stumps, or exclude permits/connections/appliances that add $20k–$60k once tallied.

What is a granny flat?

A granny flat (also called a secondary dwelling, ancillary dwelling unit, ADU, backyard studio, or backyard cabin) is a fully self-contained secondary residence built on the same lot as the main house. In Australia it sits on a single title (no subdivision), is Class 1a compliant under NCC 2022, and can be either lived in by family or leased to a tenant for rental income.

How long does it take to build a granny flat?

2 months from decision to finished build: ~1 month of paperwork (design + building permit — no planning permit needed on most Victorian lots under the small second dwelling reform, Amendment VC253) + ~1 month of construction on site (4 weeks; 4–5 for the Dual Living). Typical Melbourne builders quote 4–7 months. A tenant typically moves in 2–3 weeks after handover.

Do I need council approval for a granny flat?

A building permit yes, a planning permit usually no. Victoria's small second dwelling reform (Amendment VC253, Dec 2023) removed the planning-permit requirement for dwellings ≤ 60 m² on lots ≥ 300 m² — E2ES's private surveyor issues the Class 1a Building Permit in 2–4 weeks, so paperwork closes in ~1 month. In NSW, lots ≥ 450 m² use the SEPP Complying Development pathway (~10 days, no neighbour consent). Heritage Overlay or DCP/DCPO sites add 6–12 months. E2ES handles the entire permit process — owner has zero paperwork.

Can I rent out a granny flat as a separate lease?

Yes. All E2ES designs are Class 1a self-contained dwellings, which means up to 3 leases per lot (NCC 2022 Class 1b threshold) without requiring a rooming-house licence. The 60 m² Dual Living layout is two fully independent studios on one footprint, each leasable as a standalone tenancy.

What is the rental yield on a granny flat?

Gross yields on build cost: 30 m² studio ~16.3% ($380/wk on $110k), 60 m² two-bed ~13.9% ($500/wk on $170k), 60 m² dual ~16.5% ($700/wk on $200k). Net yields on cash down are significantly higher (~33% on the 30 m²) because 80% of the build is financed via construction loan, leveraging the owner's existing land equity.

Do E2ES granny flats sit on a concrete slab or steel stumps?

Always an engineered reinforced concrete slab (AS 2870.1 Class M/H, waffle-pod or raft) with termite management — the same foundation as a full-size home, included in every fixed price. Portable and prefab units that undercut on price sit on steel stumps or a trailer chassis, which rent for less and are valued differently by banks.

What materials does E2ES build with?

The best Australian-made materials in the market, locked into the contract by brand: BlueScope Colorbond steel roof (Lysaght Klip-Lok 700), James Hardie Scyon Axon fibre-cement cladding, CSR Bradford Gold insulation, Australian MGP10 H2 termite-treated pine frame, silica-free engineered stone benchtops, double-glazed aluminium windows.

Does E2ES have real multi-lease / room-by-room rental experience?

Yes. OptimaRea, E2ES's property-management arm, runs 300+ tenancies including dual-living and multi-lease setups — separate leases, separate bonds, sub-metered utilities. All Class 1a compliant: up to 3 leases per lot with no rooming-house licence. The 60 m² Dual Living plan was designed from that operating experience.

Can I build a granny flat in Brisbane / Gold Coast / Sydney?

Yes. E2ES operates across Melbourne, Brisbane, Gold Coast and Sydney. Brisbane and Gold Coast follow the Queensland Development Code MP1.1 (Secondary Dwelling) — typically 400–600 m² minimum lot. Sydney uses the NSW Affordable Rental Housing SEPP 2009 (450 m² minimum, 10-day Complying Development). All four cities use the same three E2ES floor plans.

E2ES 六阶段建造流程

一站式服务

六个阶段。同一团队。

从第一次现场勘查到每月租金对账单——E2ES 是唯一的责任主体。没有 builder、town planner、leasing agent、property manager 之间的责任交接。一份合约。一条发票流。一个团队的电话。还有一条墨尔本没有第二家敢公开的时间线：报建 1 个月 + 施工 1 个月——从你决定到完工只需 2 个月。

现场勘查（Site Assessment）

1–2 周

免费上门勘查。Council 政策核查、overlay 排查、退界、土质与市政管线定位。签约前用书面告诉你这块地是否可行。

设计与施工图（Design & Working Drawings）

第 1–2 周 · 报建月

从三套户型中选定一套。我们根据你的地块调整朝向、布局与立面，并输出符合澳洲标准的施工图。因为三套设计已预完成工程，别家要一个月的图纸我们几天出。

报建与审批（Permits & Approvals）

第 2–4 周 · 报建月

我们通过自己的私人 surveyor 端到端递交并跟进 building permit——业主零纸面工作。维州 small second dwelling 新政（Amendment VC253）下多数地块完全不需要 planning permit，整个报建阶段约 1 个月收口。Overlay 地块（heritage / 山火 / 洪水）在签约前书面标注。

建造（Construction）

现场施工 4 周

一份固定价合约。一位现场监理。预切割框架 + 演练过数百次的 4 周现场工序，浇筑在钢筋混凝土工程地坪上——同样三套设计建了几百遍，这就是一个月完工的底气。所有饰面在签约时锁定——没有 variation 加项的套路。

招租（Leasing）

2–3 周

我们的招租团队在交付前 5 天就开始推广。四点位租客背景审核，48 小时申请处理。在能提升回报的情况下采用 bills-included 策略。

长期管理（Ongoing Management）

你想多久都行

交给 OptimaRea ——建造这栋房的同一支团队继续管理。1:50 管家比例，Tapi AI 提供 7×24 维修响应，每季巡查。

现场勘查（Site Assessment）

1–2 周

免费上门勘查。Council 政策核查、overlay 排查、退界、土质与市政管线定位。签约前用书面告诉你这块地是否可行。

设计与施工图（Design & Working Drawings）

第 1–2 周 · 报建月

报建与审批（Permits & Approvals）

第 2–4 周 · 报建月

建造（Construction）

现场施工 4 周

招租（Leasing）

2–3 周

我们的招租团队在交付前 5 天就开始推广。四点位租客背景审核，48 小时申请处理。在能提升回报的情况下采用 bills-included 策略。

长期管理（Ongoing Management）

你想多久都行

交给 OptimaRea ——建造这栋房的同一支团队继续管理。1:50 管家比例，Tapi AI 提供 7×24 维修响应，每季巡查。

每个阶段你会收到什么

每一步，完全透明。

01现场勘查（Site Assessment）

·可行性备忘录
·地块适配评分
·租金与回报率示意
·固定价格报价单

02设计与施工图（Design & Working Drawings）

·总平 + 户型图
·立面 + 剖面图
·能效评级（6 Star）
·3D 渲染预览

03报建与审批（Permits & Approvals）

·Small second dwelling 核查（VC253）
·Building permit
·土壤报告 + 结构工程
·CFA / 水务批复

04建造（Construction）

·Slab → frame → lockup → fitout
·每周进度照片
·终检 + occupancy
·缺陷保修期

05招租（Leasing）

·专业摄影
·realestate.com.au 挂牌
·Open inspection 看房日
·签约 + 押金登记

06长期管理（Ongoing Management）

·租金代收 + 对账单
·常规 + 年度巡查
·维修派工
·VCAT 出庭代表

免费现场勘查

从一次
30 分钟现场勘查开始。

告诉我们你的地址，以及你倾向于哪一套户型。我们会核查 council overlay、确认可行性，并以书面形式回复固定价报价、租金与回报率示意——无任何承诺前提。

销售与可行性

+61 480 099 909

邮箱

hello@e2es.com.au

办公地址

Suite 631, Waterman Workspace, 44 Lakeview Drive, Scoresby VIC 3179

六个阶段。 同一团队。

现场勘查（Site Assessment）

设计与施工图（Design & Working Drawings）

报建与审批（Permits & Approvals）

建造（Construction）

招租（Leasing）

长期管理（Ongoing Management）

每一步，完全透明。

从一次 30 分钟现场勘查开始。

六个阶段。同一团队。

从一次
30 分钟现场勘查开始。