Granny Flat Design
Layout
1 Bed
1 Bath
Overall Floorspace
364 sqft
34 m2
Design Type
ADU (Accessory Dwelling Unit)
Sleeps
Sleeps 2
2 Adults
Plans/Blueprints Available
PDF ADU Plans
Available in metric & imperial
Software Used:
Design from scratch or, customize templates with 3D Designer
Plans Exported With:
Export with instant generate plans tool & Take off tool in 3D Designer
Take an Interactive 3D Tour of The Alder
Step inside this cabin design and explore every corner at your own pace with our interactive 3D Viewer.
The Design Concept Overview
The Alder draws its character from the landscape it's meant to sit in. The name, the material choices, and the layout all point toward the same idea: a compact home that belongs in a natural setting. Whether it's tucked into a backyard garden, placed near trees, or sitting on a rural property, it's the kind of granny flat design that feels planned rather than random.
The exterior sets that tone right away. Warm honey-toned horizontal timber cladding, dark brown trim, and a covered front porch create a cottage-style facade that feels grounded and settled. The porch isn't just for looks -- it creates a real entry moment, a transition between outside and in. That's something a lot of compact granny flat plans skip, and it makes a bigger difference than it sounds.
Inside, the design leans into its woodland character without going rustic. Deep navy cabinetry with brass hardware, a marble-look benchtop, and vaulted white tongue-and-groove ceilings create an interior that's cottage-inspired but clean and refined. The palette is tight and clear -- navy, brass, warm walnut, white -- so every room reads as part of the same home.
This granny flat design works as backyard guest accommodation, a compact rental, a space for aging parents, or a standalone secondary dwelling. It's designed as a complete home, not just a functional unit. The kitchen's fully equipped, the bedroom has real wardrobe storage, and the bathroom doesn't cut corners. For a 1-bedroom granny flat, that level of finish makes a genuine difference to how it feels to live in.
This design suits:
Homeowners adding a secondary dwelling for a parent or adult child
Backyard property owners who want design-led guest accommodation
Short-stay rental operators looking for a compact, self-contained unit
Downsizers who want a smaller footprint without giving up on finish
Granny flat builders who want a cottage-style option in their model range
If you build granny flats and want to design, visualise, and present concepts like The Alder more efficiently, software for granny flat builders is worth exploring.
Interior material palette:
Zone | Material / Finish |
|---|---|
Exterior cladding | Horizontal timber, warm honey/amber |
Exterior trim | Dark brown painted timber |
Interior floors | Dark hardwood, continuous throughout |
Interior ceiling | Vaulted white tongue-and-groove |
Bathroom ceiling | Vaulted tongue-and-groove, deeper grey |
Interior walls | White / off-white painted |
Cabinetry | Deep navy (kitchen, bedroom, bathroom) |
Cabinet hardware | Brass cup-pull and bar pull |
Kitchen benchtop | Marble-look stone |
Kitchen backsplash | Light grey stone tile |
Bathroom vanity top | Marble |
Pendant lights | Woven/natural timber drum shade |
Flooring | Dark hardwood |
Design Breakdown
Exterior Granny Flat Design
The exterior gives this granny flat design its identity from the street. Horizontal timber boards in warm honey and amber tones run the full width of the building, capped with dark brown fascias and eaves trim that give the structure a neat, finished edge. The gabled roofline keeps the form simple -- there's nothing fussy about the silhouette, and that restraint works in its favour.
The covered front porch is the exterior's defining feature. A structural timber post supports the extended roofline over an open deck platform, creating a shaded entry that reads right away as welcoming. The entry door -- a bold blue against the warm timber cladding -- adds a clear accent that stops the facade from feeling too conservative. White-framed multipane windows on the front elevation complement the cottage character without overdoing it.
The design holds its own in an open garden, but it looks most at home surrounded by trees. The warm timber cladding and low, grounded scale suit a site that already has natural character.
Exterior features:
Horizontal timber cladding, warm honey/amber tones
Dark brown fascia and eaves trim
Low-pitched gabled roofline
Covered front porch with structural timber post and open deck platform
Bold blue entry door
White-framed multipane windows on the front elevation
Interior, Kitchen & Dining
The kitchen runs along a single wall at one end of the open-plan space, and it's the focal point of the room the moment you step in. Deep navy Shaker-style cabinetry fills the full height of the wall from floor to ceiling, with brass cup-pull hardware running across every door and drawer. Two open walnut floating shelves sit between the upper cabinet sections, adding display space and stopping the run from feeling too enclosed.
The benchtop is finished in a light marble-look stone, which keeps the kitchen bright despite the depth of the navy cabinetry. A brass undermount sink with a wall-mounted brass faucet sits centred below the shelves. A four-burner gas cooktop with a built-in oven below gives the layout full cooking capability. A full-height pantry cabinet on the left side of the run adds storage without needing extra furniture.
There's no dedicated dining zone, but that's a natural fit for this granny flat floor plan. The round walnut coffee table in the adjacent living area works well for casual meals, and the open-plan layout means the two zones feel connected all day.
Kitchen specification:
Feature | Detail |
|---|---|
Layout | Single-wall |
Cabinetry | Deep navy Shaker-style, floor to ceiling |
Hardware | Brass cup-pull handles |
Shelving | Two open walnut floating shelves |
Benchtop | Marble-look stone |
Backsplash | Light grey stone tile |
Sink | Brass undermount |
Faucet | Wall-mounted brass |
Cooktop | Gas, 4-burner |
Oven | Built-in electric |
Pantry | Full-height cabinet, left end of run |
Interior, Living
The living area sits in the middle of the open plan, facing the front windows. A light neutral sofa anchors the space alongside a round walnut coffee table and a navy media unit that ties back to the kitchen cabinetry, same color, same brass hardware , which gives the whole main floor a consistent, settled feel.
Large dark-framed windows on the front and side elevations bring in strong natural light and frame outdoor views. That link to the outside gives the room a sense of depth that goes beyond its actual size. It's one of the things that helps this compact granny flat feel generous rather than tight.
The vaulted white tongue-and-groove ceiling runs the full length of the open plan, adding real height above the walls and keeping the space bright. A woven rattan pendant light hangs at the centre, giving warm light in the evenings. Dark hardwood flooring runs through from the kitchen to the living area, helping the two zones read as one generous space.
Living area features:
Light neutral sofa, round walnut coffee table
Navy media unit with brass hardware (matches kitchen cabinetry)
Large black-framed windows on front and side elevations
Woven rattan pendant light
Vaulted white tongue-and-groove ceiling
Dark hardwood flooring, continuous from kitchen
Interior, Bathroom
The bathroom carries the same material language as the rest of the home in a compact, well-resolved space. A navy vanity with a marble top and a round vessel sink sits below a large round mirror in a brass frame -- the same warm-metal tone as the kitchen. Wall-mounted brass tapware keeps the vanity tidy and uncluttered.
The walk-in shower is enclosed behind a clear glass screen in a gold frame, with light grey stone tiles on the shower walls. Two black-framed windows -- one in the shower zone, one facing the vanity -- bring in natural light and keep the outdoor connection that runs through the whole interior.
The ceiling follows the tongue-and-groove profile of the rest of the home in a slightly deeper grey tone. It's a nice touch that gives the bathroom a more finished feel than you'd usually find in a small granny flat design. The brass detail -- mirror frame, tapware, vanity hardware -- links back to the kitchen and ties the whole interior together.
Bathroom features:
Walk-in shower with clear glass screen, gold frame
Light grey stone tile on shower walls
Navy vanity with marble top and round vessel sink
Round brass-framed mirror
Wall-mounted brass tapware
Two black-framed windows for natural light
Vaulted tongue-and-groove ceiling, deeper grey tone
Interior, Granny Flat Bedroom
The bedroom makes the most of its footprint through smart, built-in storage. Full-height navy wardrobes run floor to ceiling on both sides of the bed, with two open walnut floating shelves above the bedhead between the wardrobe sections. The built-in approach keeps the floor clear and easy to move through -- no freestanding furniture, no visual clutter.
The bed is a simple timber-framed platform in a warm walnut tone, dressed in neutral white linen. Large black-framed windows face the treeline, so the room wakes up with natural light and a real view. The vaulted tongue-and-groove ceiling extends into the bedroom, and a natural timber pendant light adds warmth in the evenings.
Storage in a 1-bedroom granny flat floor plan is often an afterthought. Here, it's treated as a real design decision. The built-in wardrobes give genuine everyday living capacity, and the open shelving above the bed handles display and smaller items without taking up floor space.
Bedroom features:
Full-height navy built-in wardrobes with brass bar pulls
Open walnut floating shelves above bedhead
Timber-framed platform bed, warm walnut tone
Large black-framed windows with forest views
Vaulted white tongue-and-groove ceiling
Natural timber pendant light
Dark hardwood flooring continuous from main floor
The Alder in Summary
The Alder is a compact granny flat design that finds a strong balance between small footprint and comfortable living. At 26ft x 14ft (7.9m x 4.3m), it's a modest floor plan, but the vaulted ceiling, open-plan layout, navy kitchen, and full built-in bedroom storage all help it feel like a complete home rather than a reduced one.
The design works on a backyard site, a rural property, or any setting where a secondary dwelling needs to feel designed and considered rather than just added. As a granny flat design concept, it shows how much character and liveability a small footprint can hold when the layout, ceiling height, and material palette are handled with care.
For builders, The Alder is a good example of the kind of design that can become a repeatable model in a granny flat range -- compact enough to suit a wide range of sites, finished well enough to stand out in a market where most compact granny flat options look and feel the same.
If you're a builder who wants to add a granny flat design like The Alder to your model range, book a demo with the Tiny Easy team to see how you can design, visualise, and present compact home concepts like this to your clients.
How We Designed this Cabin Concept
Every part of this cabin plan concept, from the exterior details to the interior layout, was designed entirely within the Tiny Easy platform. No third-party tools, no hand-drawn floor plans, no outsourced renderings. From the first concept through to final handoff documents, the whole process lived in one place.
Design Creation
For builders, one of the biggest bottlenecks in turning interest into a real sales conversation is the time it takes to get a clear design in front of a client. Traditional 3D design tools can be slow to learn, and relying on a designer or draftsperson for every early concept can add cost and delay before the client has even had a chance to properly understand the home.
The 3D Designer is Tiny Easy’s design workspace for creating, managing, and tailoring tiny homes, cabins, granny flats, ADUs, and more within one connected system. Builders can use it to build out their core model range, save designs as reusable templates, test new ideas, explore layout options, and refine their designs over time.
Inside the Designer, the structure can be shaped using tools like Foundation, Shell, and Roof, before completing the model with doors, windows, walls, interior doors, cabinetry, furniture, fixtures, lighting, and finishes. This gives builders a practical way to create complete 3D concepts without needing to start from scratch or rely on complex modelling workflows.
Where this becomes especially valuable is in the sales process. Instead of designing a new cabin from a blank canvas for every enquiry, builders can pull the most relevant model from their existing range into a client project, tailor the layout, finishes, openings, and key details, then present a concept that feels specific to that client.
That speed changes the quality of the conversation. Clients are not left trying to imagine the home from 2D plans, rough sketches, or verbal explanations. They can see the design clearly, understand the layout, explore the options, and build confidence in the direction before moving further into pricing, proposal, or approval.
For builders, the result is a faster and more professional path from enquiry to client-ready cabin concept. The 3D Designer helps turn design into a sales tool, giving builders a repeatable way to respond quickly, communicate clearly, and move serious clients forward while interest is still warm.
Visualization
Once a design is complete, the next challenge is presenting it in a way that actually converts interest into commitment. Traditionally, that meant outsourcing renders to a freelancer — which adds cost, turnaround time, and rounds of back-and-forth — or investing in professional rendering software that requires its own lengthy setup before a single image is produced. For a small home builder running a lean operation, neither is a sustainable way to work.
The AI Render Tool takes care of that. Once the design is finalised in the 3D Designer, renders are generated directly from within it. The only setup required is positioning the camera, choosing an environment, setting the time of day and season, and hitting render. The result is a photorealistic image of the home, produced in minutes rather than days — and at a fraction of the cost of conventional methods.
The 3D Viewer Tool adds another layer to the client experience, letting them explore the completed design in interactive 3D from any device. Sharing it is as simple as sending a link. Scale and spatial flow can be difficult to communicate on paper — paired with AI Renders, a 3D virtual tour gives clients the confidence to take the next step without hesitation.
Presentation
Once a design is ready, the next challenge os turning all the project information into a proposal that feel clear, professional, and easy for the client to understand.
For many builders, this is one of the most tedious parts of the sales process. The design may already be done, the renders may be ready, and the pricing may be prepared, but pulling everything together into a polished client proposal often means jumping between Canva, PowerPoint, PDF exports, spreadsheets, and old proposal templates that are either too rigid or too difficult to edit.
It helps builders bring together the key parts of a project, including 3D Viewers, PDF plans, AI Renders, specifications, pricing, inclusions, available options, and next steps, into one clear presentation.
Instead of starting from a blank document every time, builders can begin with suggested proposal templates designed around the way small home projects are actually sold. These templates provide a practical page structure for presenting a customised design, with sections for introducing the project, showcasing the design, explaining the layout, outlining specifications, presenting pricing, and guiding the client toward the next step.
This gives builders a faster way to insert the right content in the right order without needing to design a full proposal from scratch. Pages can be adjusted, removed, duplicated, or added as needed, so the proposal can still be tailored to the client without becoming a complicated custom design task.
The value is not just that the proposal looks better. It helps the client understand the project faster. Instead of receiving disconnected files, flat plans, separate renders, and a pricing document, they get one polished proposal that brings the design story together. They can see the home, understand the layout, review the key details, and know exactly what happens next.
For builders, this creates a more repeatable and professional sales workflow. It reduces the time spent assembling proposals manually, keeps presentations more consistent across the team, and helps move clients toward sign-off, approval, or deposit with greater confidence.
Handoff
When the design is approved and it's time to move into documentation, the 3D Designer exports everything needed to take the project forward. PDF plans are generated directly from the model — accurate, professional documents that give a draftsperson or architect a clear picture of the design intent without any redrawing required.
Alongside the plans, an auto-populated material take-off spreadsheet exports directly from the design. Rather than manually costing a new model from scratch, the material list is already populated and ready to work from — saving hours in the estimation process and reducing the margin for error when putting a quote together.
For those who need to take the model further, the 3D Designer also exports a SketchUp file, allowing the design to be carried into more advanced workflows without having to rebuild from scratch.
For builders, this closes the loop on the entire process — from first sketch to professional handoff — without the design ever leaving the platform. It's a faster, cleaner way to work that reduces errors, saves cost, and keeps the project moving.
Ready to Design your Own?
This cabin design is proof that a small footprint doesn't mean compromising on quality — in the design, the experience, or the process behind it.
What made it possible wasn't a team of designers or an expensive production pipeline. It was a single platform, built specifically for the way small home builders actually work.
If you're a builder who wants to walk into your next client meeting with renders like these, proposals that are ready to go, and a process that runs end to end without the usual friction — book a call with us and let's talk about what you're building.
