Flufftop, there have been many good suggestions in this discussion. You already have two 'WOW' factors in your front yard...your lovely cottage and the tree. Whatever you do needs to link these two with the remainder of the garden and that's not an easy thing to do when you have a variety of ideas coming at you from all directions. Walk around your neighbourhood, go to Diggers for inspiration but also go to your local nursery and ask if they have a garden advisory service. Another option is to find a local garden designer (www.aildm.com.au) and have them visit your garden. They have the knowledge to tie all your ideas and thoughts together. They will suggest ways to incorporate all, or some, of your wishes into a unified design which can be implemented immediately or over a period of time to suit your budget. It will cost you a fee for an hour or two ,or more if you get a plan drawn up, but will save you money and disappointment because you'll be eliminating guess work and mistakes. Best wishes Arthur

Hello, I am hoping this may be of relevance to your build. If you are looking at any retaining walls and water tanks then Landscape Tanks may be the option for you. See some images below; Retaining walls and front fences that store rain water - seems impossible doesn't it? All these lovely pictures above are actually retaining walls that store rain water, which may seem hard to believe - well its not and lots of people are using them already with stunning results. Many people stare at these pictures and can't see the tanks without realising the lovely structures are the tanks themselves. Many people also like the appearance of the tanks so much they don't even fill them with water. These great Landscape Tanks are designed for use as structural retaining walls and front fences that store rain water and they can also be used for many other structures around the home. You can even have your front fence as your on site detention system if you like. They are made from high grade concrete (50mpa) and provide a fantastic alternative to traditional retaining walls or front fences and are very cost effective. The Landscape Tanks do not require any footings, are very easy to install and may be placed straight on a firm level base for great savings. They are are pre-engineered (empty) for use as retaining walls, which means they are also ideal for other structures around your home, such as front fences, on site detention systems, pool or pergola surrounds, water tanks, fire fighting water tanks, and raised garden beds. The planter top also has many other uses (apart from growing plants) including water features, outdoor kitchens, decking and even spectacular light shows all at the same time while still being used for your retaining wall or front fence. The Landscape Tanks are all quality and designed to last over 100+ years (or even 150 years) and they add that WOW factor to your home. So whether you are looking for retaining walls in Sydney or retaining walls in Melbourne or just browsing for retaining wall ideas, block retaining walls or concrete sleeper retaining walls, look no further than the fantastic multi purpose quality Landscape Tanks. You may be very surprises at just how cost effective they can be. Product sizing and capacities also available at http://www.landscapetanks.com.au/technical-info/specifications/ Our Landscape Tanks may be used for any of the following individually or concurrently in the same project and they deliver great savings and results. Retaining Walls Simply place into position for instant results - no footings required. On site detentions systems Save money - you may avoid using a detention system altogether. Front Fences Stunning front fences that store rain water and even double as retaining walls. Rain Water Tanks Turning rain water tanks into a feature for your property. Pool landscaping Stores rain water for the pool and keeps plants out of chlorine level. Raised Garden Beds Ideal working height for growing vegetables and herbs. Water Features and Light Show Using the planter tops for other uses can deliver amazing results. Features Pre-engineered - we provide you with your own set of engineering drawings. No footings required - easy to install - no excavation required. They will look the same in 100+ years as the day they are installed. They turn water tanks into a feature of your property. Made from 50mpa high quality concrete for exceptional long life. Enhance to appearance of your property - attractive landscape architecture. Let us design your OSD system and chances are you wont need an OSD system at all. Add value and that WOW factor to your quality home. Very cost effective

There are a number of possibilities. Anyone offering advice should know where you live so they can assess your climate for suitable plants. As MUSA said, a professional in your area is recommended as will be able to help you with layout and plants. If you don't wish to go down that path, there a many entries in HOUZZ that deal with narrow spaces and gardens between the house and side boundary.

anything to do with building and landscaping can be expensive but it doesn't all have to be done at once..from the contour lines it looks like there's a relatively gently slope from the alfresco to about halfway down the back and best options depends on what you need/want in the backyard... gardens are quite happy planted on slopes and grass grows anywhere but if you prefer a flat area then you need help to work out the best location for retaining walls and extra fill to level out some of the space .i'd invest in professional help to build a retaining wall that follows along the 112 contour line and fill in to make a flat lawned area with gardens beds along the edges..there are numerous DIY options for retaining walls under 1m but if you wouldn't do you own carpentry invest in professional help to build a wall..get some quotes from landscapers and bricklayers for a variety of options so you know exactly how much is involved..every situation is different and strength, safety and good drainage are worth investing in to give the basis for a great new backyard