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.

为什么 Melbourne 房东选 E2ES

为什么选 E2ES

九个理由让 Melbourne 房东
不再到处比价。

端到端单一责任

设计、报建、建造、招租、管理——同一家公司，同一份合约。若出问题，没有第二个人可以推诿，也没有第二个人需要追责。

固定价保证

签约时的报价就是交钥匙时的价格。我们承担工料价格波动，你的租金现金流模型不必再留 contingency（应急）预算。

内置 Class 1a 合规

每套户型都设计为低于 Class 1b 门槛——每块地最多 3 份租约，无需 rooming house 牌照，也不会引入额外的市政合规成本。

40+ 自有工人

关键路径上我们不外包。木工、水管工、电工、瓦工、油漆工都是我们自有员工——失约和成本超支不复存在。

以租金为先的设计

每一套户型都基于 300+ 在管租约的真实询租数据反复重做。我们设计的是租客愿意付钱的房子。

OptimaRea 长期管理

建造这栋房的同一支团队也负责招租与管理——1:50 管家比例，Tapi AI 全天候维修响应，已完工项目平均回报 5.5%+。

最好的澳洲本地材料

BlueScope Colorbond 钢屋面、James Hardie 纤维水泥外墙、CSR Bradford 保温棉、澳洲 MGP10 松木框架。市场上最好的本地制造材料——不是进口替代品——每一栋都用，固定价不变。

真正的混凝土地坪地基

每一栋 E2ES 都浇筑在钢筋混凝土工程地坪上（AS 2870）——和正式住宅同级的地基。低价可移动板房用的是钢桩或拖车底盘：住着像临时房、租金更低、银行估值也打折。

经过验证的分租运营记录

我们不只是为分租而建——我们自己在运营分租。OptimaRea 在管 300+ 租约，含 dual-living、按房间分租与多租约场景，全部 Class 1a 合规（每块地最多 3 份租约，无需 rooming house 牌照）。你可以让任何别的建商拿出他们的租赁台账。

常规建商 + 独立 PM

E2ES

项目参与方

3–5 方（设计师、建商、认证师、PM、招租）

1 方 —— E2ES

需签订的合同数

从决定到完工

4–7 个月（墨尔本常态）

2 个月——报建 1 个月 + 施工 1 个月

地基

钢桩 / 拖车底盘（可移动板房）

钢筋混凝土工程地坪（AS 2870）

材料

为压价混用进口替代

澳洲制造：Colorbond、James Hardie、CSR Bradford

谁去跟进 permit

业主自跟（或额外付费聘请顾问）

E2ES，已含

谁找第一位租客

独立招租中介

E2ES 招租团队

分租 / 按房间出租经验

罕见——多数只管建

300+ 在管租约，含 dual-living 分租

谁负责长期管理

第三方 PM，1:170 配比

OptimaRea，1:50 配比

是否单一责任主体

否

是

继续了解

在线定制下单后院屋成本常见问题

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

九个理由让 Melbourne 房东不再到处比价。