Granny Flat Designs
Pick a layout, choose your upgrades, and request a formal proposal online. Every design is CDC-approved capable, fully customisable, and built on a fixed-price contract.
Under NSW Housing SEPP on lots 450m²+. No DA, no neighbour notification.
Hard cap on internal floor area. Verandahs, eaves and carports don’t count, which is where smart design recovers space.
From slab pour to handover, on a fixed-price contract. Service connections priced upfront, not deferred.
Studio, 1-bed, or 2-bed — what fits which lot
| Layout | Footprint | Build cost (turnkey) | Weekly rent (W. Sydney) | Best for |
|---|---|---|---|---|
| Studio (30–40m²) | Tight rear corner, no DA | $100k–$170k | $280–$420 | Single tenant, elderly parent, Airbnb |
| 1-bed (45–55m²) | Standard 450m² lot | $140k–$220k | $380–$560 | Strongest tenant pool, balanced yield |
| 2-bed (55–60m²) | Backyard 8+m deep | $170k–$260k | $450–$650 | Highest weekly yield, family or couple tenant |
Browse Buildana’s designs
Each layout is built and consented before — these aren’t renders, they’re plans we’ve already lodged through CDC across Fairfield, Liverpool, Cumberland, Canterbury-Bankstown and Blacktown LGAs.
Buildana Amana
from $264,00060m² · 2 bed · 1 bath · garage + porch included · indicative $264,000 from
Buildana Amari
from $210,00060m² · 2 bed · 1 bath · indicative $210,000 from
Buildana Aria
from $175,00050m² · 2 bed · 1 bath · indicative $175,000 from
Buildana Arlo
from $210,00060m² · 2 bed · 1 bath · indicative $210,000 from
Buildana Aster
from $210,00060m² · 2 bed · 1 bath · indicative $210,000 from
Buildana Atlas
from $210,00060m² · 2 bed · 1 bath · indicative $210,000 from
Buildana Avalon
from $210,00060m² · 2 bed · 1 bath · indicative $210,000 from
Buildana Cove
from $210,00060m² · 2 bed · 1 bath · indicative $210,000 from
Buildana Eden
from $222,50060m² · 2 bed · 1 bath · indicative $222,500 from
Buildana Elara
from $210,00060m² · 2 bed · 1 bath · indicative $210,000 from
Buildana Grove
from $210,00060m² · 2 bed · 1 bath · indicative $210,000 from
Buildana Hadi
from $210,00060m² · 2 bed · 1 bath · indicative $210,000 from
Buildana Hana
from $210,00060m² · 2 bed · 1 bath · indicative $210,000 from
Buildana Haven
from $210,00060m² · 2 bed · 1 bath · indicative $210,000 from
Buildana Idris
from $175,00050m² · 2 bed · 1 bath · indicative $175,000 from
Buildana Ilyas
from $179,00050m² · 1 bed · 1 bath · indicative $179,000 from
Buildana Kairo
from $210,00060m² · 2 bed · 1 bath · indicative $210,000 from
Buildana Kian
from $223,50060m² · 2 bed · 1 bath · indicative $223,500 from
Buildana Layan
from $210,00060m² · 2 bed · 1 bath · indicative $210,000 from
Buildana Liora
from $210,00060m² · 2 bed · 1 bath · indicative $210,000 from
Buildana Luca
from $140,00040m² · 1 bed · 1 bath · indicative $140,000 from
Buildana Luma
from $210,00060m² · 2 bed · 1 bath · indicative $210,000 from
Buildana Marlo
from $210,00060m² · 2 bed · 1 bath · indicative $210,000 from
Buildana Mika
from $234,00060m² · 2 bed · 1 bath · indicative $234,000 from
Buildana Mila
from $223,50060m² · 2 bed · 1 bath · indicative $223,500 from
Buildana Mina
from $226,50060m² · 2 bed · 1 bath · indicative $226,500 from
Buildana Mira
from $227,00060m² · 2 bed · 1 bath · indicative $227,000 from
Buildana Niko
from $229,00060m² · 2 bed · 1 bath · indicative $229,000 from
Buildana Noor
from $221,00060m² · 2 bed · 1 bath · indicative $221,000 from
Buildana Nura
from $221,50060m² · 2 bed · 1 bath · indicative $221,500 from
Buildana Orion
from $210,00060m² · 3 bed · 1 bath · indicative $210,000 from
Buildana Raya
from $217,00060m² · 2 bed · 1 bath · indicative $217,000 from
Buildana Remi
from $210,00060m² · 2 bed · 1 bath · indicative $210,000 from
Buildana Rida
from $264,00060m² · 2 bed · 1 bath · garage included · indicative $264,000 from
Buildana Riva
from $226,00060m² · 2 bed · 1 bath · indicative $226,000 from
Buildana Safa
from $264,00060m² · 2 bed · 1 bath · garage included · indicative $264,000 from
Buildana Saja
from $217,50060m² · 2 bed · 1 bath · indicative $217,500 from
Buildana Sami
from $223,50060m² · 2 bed · 1 bath · indicative $223,500 from
Buildana Selah
from $222,50060m² · 2 bed · 1 bath · indicative $222,500 from
Buildana Siena
from $175,00050m² · 1 bed · 1 bath · indicative $175,000 from
Buildana Sol
from $210,00060m² · 2 bed · 1 bath · indicative $210,000 from
Buildana Sora
from $226,00060m² · 2 bed · 1 bath · indicative $226,000 from
Buildana Vale
from $245,50060m² · 2 bed · 1 bath · carport included · indicative $245,500 from
Buildana Vela
from $210,00060m² · 2 bed · 1 bath · indicative $210,000 from
Buildana Yara
from $217,00060m² · 2 bed · 1 bath · indicative $217,000 from
Buildana Zahir
from $233,00060m² · 2 bed · 1 bath · indicative $233,000 from
Buildana Zain
from $210,00060m² · 2 bed · 1 bath · indicative $210,000 from
Buildana Zaya
from $175,00050m² · 2 bed · 1 bath · indicative $175,000 from
May 2026 update
May 2026 granny flat pricing & approvals
Costs on every design below are reconciled monthly against Rawlinson Edition 29 (2026) plus our Western Sydney site data. Here’s where the numbers actually sit this quarter.
Build cost benchmarks
Studio under 35sqm: $95k-$135k turn-key. 1-bed 50sqm: $145k-$185k. 2-bed 60sqm: $175k-$235k. 2-bed premium with stone tops, ducted split and tiled wet areas: $215k-$280k. Costs up roughly 5% in the year.
CDC pathway, May 2026
Housing SEPP 2021 still permits granny flats up to 60sqm as Complying Development on blocks 450sqm+ with 12m frontage. Private certifier approval 14-28 days. Around 85% of our 2025-26 granny flat jobs ran CDC; the rest went DA due to bushfire, heritage, flood or riparian overlays.
Reactive-clay reality
Around 70% of Fairfield, Liverpool, Cumberland and Canterbury-Bankstown sites trigger Class M or H1 footings under AS 2870. Engineered-footing premium on a 60sqm granny flat is $12k-$28k. We disclose this upfront in the fixed-price contract, never as a variation.
Rental yield & value uplift
Long-term rental Western Sydney May 2026: $480-$650/week for a 2-bed. Property valuation uplift on completion: $180k-$260k. Short-stay (Airbnb) is tighter post the 2025 NSW STRA register; the 180-night unhosted cap is enforced in Inner West, Northern Beaches and Sutherland.
Every price shown below is turn-key, GST-inclusive, with statutory HBCF cover. To lock in a quote for your block call 0476 300 300 or visit the Fairfield showroom.