Rules for where I live may differ but under a certain height you can place the building within the 1M boundary as long as it’s height doesn’t exceed a set measurement and it’s area. Above a certain length it needs to be treated with a fire retardant too. I assembled my 45mm wooden garage around 5 years ago and have painted it twice, doesn’t take me more than 1 day for a good coating. If it’s small enough you can buy pressure treated timers mine was too big for treating. I can’t recall the final cost but the pad alone was £2500, here’s where I bought mine from. https://dunsterhouse.co.uk/premium-trent-lo-roof-w3-0m-x-d5-5m
There are two separate things to consider: Permitted development, where planning permission is not required, e.g. Outbuildings are considered to be permitted development, not needing planning permission, subject to the following limits and conditions: No outbuilding on land forward of a wall forming the principal elevation. Outbuildings and garages to be single storey with maximum eaves height of 2.5 metres and maximum overall height of four metres with a dual pitched roof or three metres for any other roof. Maximum height of 2.5 metres in the case of a building, enclosure or container within two metres of a boundary of the curtilage of the dwellinghouse. No verandas, balconies or raised platforms (a platform must not exceed 0.3 metres in height)No more than half the area of land around the "original house"* would be covered by additions or other buildings. In National Parks, the Broads, Areas of Outstanding Natural Beauty and World Heritage Sites the maximum area to be covered by buildings, enclosures, containers and pools more than 20 metres from the house to be limited to 10 square metres. On designated land* buildings, enclosures, containers and pools at the side of properties will require planning permission. Within the curtilage of listed buildings any outbuilding will require planning permission. See https://www.planningportal.co.uk/permission/common-projects/outbuildings/planning-permission for more details Building Regulations are the minimum standards for design, construction and alterations to buildings. If you want to put up small detached buildings such as a garden shed or summerhouse in your garden, building regulations will not normally apply if the floor area of the building is less than 15 square metres and contains NO sleeping accommodation. If the floor area of the building is between 15 square metres and 30 square metres, you will not normally be required to apply for building regulations approval providing that the building contains NO sleeping accommodation and is either at least one metre from any boundary or it is constructed substantially of non-combustible materials. See https://www.planningportal.co.uk/pe...egulations-approval-needed-for-an-outbuilding for more details
Make sure there is damp roofing under that concrete I had an extension purpose built brick velux after 25 years make sure you have enough power ie you may be better off running an armoured cable to build a new fuse board inside also think about how to get bikes though garden if muddy Look up Dynamoto stands pricy but works in small spaces
Have a look at Asgard metal sheds-they do specific ones for motorcycles and are insurance approved and amazingly well built. I bought one 4 years ago and it can fit 3 bikes (it’s a tight squeeze) but 2 comfortably. They have vents and I’ve never had any condensation issues. Erected in a day and all they need is a solid firm level base. They have floors in them (so you don’t just lift the shed up to get in) and mine came with a wooden sub floor. They are modular so if you want it longer you buy some extra panels….need more room buy 2 of them! You won’t be disappointed and it’s absolutely no hassle not like getting something built with planning and dealing with workies!!
Most timber comes pressure treated, make up each section separately then stand then up and connect them. Apply whichever colour stain before you fix the boards, much easier. Make sure the floor has a damp proof membrane, if you can insulate and line it will be much nicer to use as previously suggested. 5k may be tight, especially if you want a decent spec.
I had similar issues when I erected my 6mx5m concrete sectional garage. I got in touch with the local buiding inspectors/control who were very helpful. As it happened, I required building regs and planning permission as the height required for the 13' roller shutter meant the wall height exceeded the limits.
There's a lot of permitted development rules to stick to, if you get it wrong they become a stick to beat you with. The ridge and eaves height are important as are distances from your neighbours boundries. Check first, these can be expensive mistakes and don't piss off the neighbours, they'll have the council out in no time.
