We create granny flat designs across Tasmania that suit your block, your family and what you can actually spend, then guide you through approvals to build ready plans without the stress.
A granny flat sounds straightforward until you hit the questions. Will it fit the block, what will council allow and what does it actually cost to do properly. It is easy to stall for months, unsure whether the idea even stacks up on your property.
We design your granny flat floor plans around your block, your budget and how the space will be used, whether that is family, guests or rental income. You see the design take shape and refine it with us until it feels right. Nothing gets drawn that pricing will later take away from you.
We had no idea where to start with our new home and Strait Design made the whole thing feel simple. They designed to our budget from day one and kept us informed the whole way through. Could not fault them.
After a bad experience elsewhere we were nervous, but this team told us the truth about timelines and cost upfront. No surprises and no excuses. Our plans were build ready exactly when they said they would be.
The approvals process terrified us but Strait Design handled all the council side so we did not have to. Everything was explained in plain English and we always knew what was happening next. Brilliant service.
We wanted a double storey family home and were worried about blowing the budget. They shaped the design around what we could actually spend and it still turned out beautiful. Would recommend to anyone building.
As a small developer I needed speed through approvals and accurate early costing. Strait Design delivered both. The documentation was clear enough for builders to price it properly the first time around.
What stood out was the communication. We never had to chase for updates because they always let us know where things sat. Dealing with one team from start to finish made the whole process so much easier.
Over 35 years of experience really shows. They picked up issues early that we never would have and saved us money down the track. It genuinely felt like they had our best interests at heart the entire time.
We are first home builders and had a hundred questions. The team was patient, down to earth and never once made us feel silly for asking. Our build ready plans came through exactly as promised. Thank you.
From the first call to the finished plans the experience was exactly what they said it would be. Trade qualified people who actually know planning and building inside out. Honestly worth every single cent.
An ancillary dwelling comes with its own planning rules, and we handle them for you. We prepare the documentation and manage the planning and building approval process so you are not left decoding council requirements on your own. You are kept informed at every stage, so you always know where things sit and what happens next.
Your design is reviewed by people who build homes for a living. Get practical input on structure, materials, thermal performance and cost before decisions are locked in.
Stage one finishes with a Project Budget Alignment Estimate based on real project data and current construction rates, so you can check the design against your budget before it goes to council.
Your design fees, consultant allowances and council costs are set out upfront. We explain provisional costs and discuss any additional requirements with you before proceeding.
We guide your selections and document them in your construction drawings, giving builders a clear basis to price the fixtures, fittings and finishes you want.
We coordinate surveyors, engineers, energy assessors, your building surveyor, council and TasWater where required, keeping your pre-construction work moving through one team.
Regular, clear updates explain where your project is at, what comes next and anything we need from you, so you can make decisions with confidence.
We design backyard granny flats that work with your existing home and outdoor space, rather than crowding it. You get a self contained dwelling that adds real value and flexibility to the property. We help you engage the right builder with documentation clear enough for accurate, comparable pricing.
We talk through your budget before any design work begins, so you know what your granny flat will cost and what you are getting. Construction estimates are prepared alongside your approvals. Our timeline and cost guarantees (terms and conditions apply) mean you can plan with certainty.
Timing depends on the size of the design, your block and what council requires. We give you a clear timeline at the start, before any work begins. Our process is built to keep your granny flat moving through design, documentation and approvals without long stalls. We back that timeline with a guarantee, and terms and conditions apply.
That depends on the size of your block, its access and the planning rules that apply to an ancillary dwelling in Tasmania. It is one of the first things we help you work out, so you are not guessing. If the block has constraints, we will tell you early and honestly rather than after you have spent money. That way you know where you stand before you commit.
Bring your budget, some detail about your property and a sense of how the granny flat will be used. Photos of the backyard and examples of granny flat designs in Tasmania that you like are helpful too. You do not need everything worked out before you get in touch. Working through the details with you is part of what we do.
Changes are a normal part of designing a granny flat, and we refine the floor plans with you until they feel right. The best time to make changes is during the design stage, before documentation and approvals begin. If you want to change something later, we will tell you how it affects your timeline and cost before anything happens. You stay in control of every decision.
Your granny flat floor plans should suit your block, how the space will be used and what you can actually spend. You will have approved, build ready plans and construction estimates that reflect your budget. Builders should be able to price the work accurately and on the same basis. Most of all, the experience should be exactly what we said it would be.
Yes, we help you engage the right builder once your plans are build ready. Your documentation is prepared so builders can give you accurate, comparable pricing on your granny flat. We can help you work through the quotes so you understand how they compare. You are not left on your own at the moment it matters most.
We had no idea where to start with our new home and Strait Design made the whole thing feel simple. They designed to our budget from day one and kept us informed the whole way through. Could not fault them.
After a bad experience elsewhere we were nervous, but this team told us the truth about timelines and cost upfront. No surprises and no excuses. Our plans were build ready exactly when they said they would be.
The approvals process terrified us but Strait Design handled all the council side so we did not have to. Everything was explained in plain English and we always knew what was happening next. Brilliant service.
We wanted a double storey family home and were worried about blowing the budget. They shaped the design around what we could actually spend and it still turned out beautiful. Would recommend to anyone building.
As a small developer I needed speed through approvals and accurate early costing. Strait Design delivered both. The documentation was clear enough for builders to price it properly the first time around.
What stood out was the communication. We never had to chase for updates because they always let us know where things sat. Dealing with one team from start to finish made the whole process so much easier.
Over 35 years of experience really shows. They picked up issues early that we never would have and saved us money down the track. It genuinely felt like they had our best interests at heart the entire time.
We are first home builders and had a hundred questions. The team was patient, down to earth and never once made us feel silly for asking. Our build ready plans came through exactly as promised. Thank you.
From the first call to the finished plans the experience was exactly what they said it would be. Trade qualified people who actually know planning and building inside out. Honestly worth every single cent.