Fig 1 Site plan measured
This will be the first post on how we go about designing a new dwelling on a Mr Fluffy block or an existing block where you want to add a second dwelling.
The first step is to have a site survey completed by a registered surveyor ( we also need to measure the sag on the any overhead lines and convert that information into a measured site plan.
At this stage and in this particular case there was an existing 2 story house already on the block so what else do we need to work out.
- Easements; we need to provide access to these and maintain clearance from the proposed new building.
- Northern boundary’s; we need to keep an eye on these as in the ACT there is a requirement to maintain solar access to the adjoining property.
- Trees; In the ACT trees are regulated when they reach a certain size it can be difficult to gain approvals to remove a regulated tree and the design need to be done to keep these where possible. (separate applications are required)
- Driveways; New driveway entry’s on the verge need to take the location of storm water pits and sight lines into account.(separate applications are required)
- Clearance to all boundary’s and building zones, generally you are allowed 1 zero boundary but this needs to be a non habitable room such as a garage.
- Plot ratios; Building areas need to be carefully worked out as this is a mandatory requirement and can be 50 or 35% of the split block this depends on a number of factors one of which is the width of street frontage. Their a number of ways to increase the allowable floor area through careful design and each will depend on all the constraints outlined so far.
In part 2 we will go through the next stage of design development and propose a site split for the new dwelling