sowen
Club Retro Rides Member
Posts: 2,245
Club RR Member Number: 24
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Jul 25, 2022 17:46:55 GMT
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My partner and I have been looking around for a property to buy together and have come across a partial renovation project that should suit all of our needs. The big bonus for me is there's a 100ft long garden and vehicle access into it! Presently it has a 10'x16' concrete prefab garage and a 10'x6' workshop/shed up near the house. These will work for me in the short term with an additional large storage shed already agreed on.
My dream plan would be to build a combined garage and workshop across the end of the garden away from the house. The current owner had ideas of a 3 car garage at the end, whereas I'd want a 2 car garage with extra width for my workshop equipment to the side. The plan would basically be to build on a concrete base approx 30ft wide and about 18-20ft deep across the end of the garden.
The first great idea and possibly cheapest would be to deconstruct the existing garage and relocate it to the bottom, whilst scouring the local ads for a similar compatable type sectional garage and frankenstein a new garage out of 2 or 3 prefabs together. This I would believe to possibly be the quickest and cheapest to have constructed, and potentially still fall well within the realms of permitted development? The first obvious downside is moving a few tons of concrete and manhandling it into position.
The first idea was then expanded to for ultimate ease of building, ordering a new concrete sectional garage to my specifications. Downside would be the costs involved and trying to take some money from the house renovation budget with associated ear bending!
Alternatively, I've started thinking of a simple concrete block built garage workshop. This would be more of a permanent structure and due to it's size I'm assuming full planning permission would be required. There would also be the costs of builder labour, unless I can learn to lay blocks myself, how hard could it be? I get the impression that materials costs wouldn't be to much, a few thousand ££££'s?
I haven't even got to brainstorming a roof beyond it not being flat, possibly a shallow apex roof so there is a little extra space for storage above.
My final built garage would be insulated, electrified, heated and this time have running water (maybe with a small heater unit), something we never did manage in my parents double garage.
Has anyone got any advice on my ideas, or even ideas on what I could likely be paying to have such a large structure built? I consider myself quite practical and intend to do as much of the works myself. There are ideas to build a large conservatory on the back of the house so coming up with some sort of garage plan early on might help save some costs in having two sets of foundations built at the same time?
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slater
Club Retro Rides Member
Posts: 6,390
Club RR Member Number: 78
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I'd definitely go for a proper build. Do some digging on building regs as thats what you need to avoid. Planning is a necessity for large garages I think.
If you just need planning a set of simple drawings will suffice then you can have a word with a few builders about the best way to actually achieve it on the cheap. It rarely makes economic sense to do you're own brick work etc especially if it's just blocks but you can save alot doing smaller jobs where your skills permit!
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jamesd1972
Club Retro Rides Member
Posts: 2,833 
Club RR Member Number: 40
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Go to the planning portal- found the below - if you have a big garden you can have a big garage !
Go for it !
James
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.
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Jul 26, 2022 10:39:19 GMT
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As slater says, building regs are a consideration - anything above 30sqm they apply, although for an outbuilding they can be less onerous than for a house extension. The main thing to watch is fire rating of the walls if you are closer than 1m to the boundary they need to be non-combustible (concrete, brick or block). good luck Cortinaman |
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Old Fords never die they just go sideways
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Jul 26, 2022 14:28:48 GMT
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My advice with planning is go for what you want or more, then see what happens and you may have to compromise. I went for what i wanted and got it approved so was lucky, especially as iam in national parks.
Id go for blocks as cost wise i don't think there will be a lot in it overall and you do it once
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'The reason i have pulled you over is to say how incredible and absolutely awesome that is'
Mercedes W109, Mercedes W140 S280 SWB & S320 LWB, W201 cosworth kitted, clk230 Kompressor, w109 300sel, Lincoln Continental 1964, BMW E30 Tech II tourer, MK1 Golf Clipper, BMW E31 840ci sport, JAGUAR XJ40 3.6, Kangoo van, Volvo 740GLE estate, Maserati Quattroporte GTS
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sowen
Club Retro Rides Member
Posts: 2,245
Club RR Member Number: 24
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Jul 26, 2022 17:06:36 GMT
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All good stuff thankyou
I'm now planning on getting an informal visit from the local planning office once we've moved in to discuss our options after watching a youtube video on someone else's garage build, I didn't know they offered that service? Ideally I'd be wanting a 9m wide by 6m long workshop (30'x20') which will go against both side boundaries and the end. Then I'd be wanting a small hard surface outside so that's going to be just over 60sqm of concrete! Overall that'd be a quarter of the garden so I'm assuming well into plannig permission territory regardless, and then requiring associated extra drainage work.
I've had a quick read of the planning portal, only things I guess that I'd want to clarify is the roof design if I build to the boundary on 3 sides, 2.5m for the eaves either side, but what about across the back which doesn't back onto private land? And would I have to incorporate some sort of tight walkway all around it so it's not hard against the boundary line?
I did watch a video of a small group of builders who put up 3 walls of a double garage in less than a day. Watching those videos makes me think I could learn to lay blocks myself and over the coarse of a few weeks build up the walls myself saving money? If going the block route I'm guessing the design and foundations would be my greatest expense before the roof?
Lookng at neighbours gardens there is a similar sized outbuilding visible a few houses along so the precedence is there to build something biggish at the bottom of the garden.
I'm also beginning to think sectional garages can't support moderately substantial insulated roofs as they all look like lightweight frames and paneling. An I beam or two for chain hoists might be out of the question!
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Jul 26, 2022 22:24:22 GMT
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Hi, A suggestion is not to bother with a beam for chain hoists, it's far cheaper and more flexible to have an engine crane. That way there's not the expense of a suitable beam and having to have the car underneath it which may not always be practicable.
Colin
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Jul 27, 2022 10:06:35 GMT
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I know in our area the national parks planning have an open chat day once a month or every 2 weeks for pre planning discussions and this can be quite helpful.
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'The reason i have pulled you over is to say how incredible and absolutely awesome that is'
Mercedes W109, Mercedes W140 S280 SWB & S320 LWB, W201 cosworth kitted, clk230 Kompressor, w109 300sel, Lincoln Continental 1964, BMW E30 Tech II tourer, MK1 Golf Clipper, BMW E31 840ci sport, JAGUAR XJ40 3.6, Kangoo van, Volvo 740GLE estate, Maserati Quattroporte GTS
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Insulation doesn't weigh much so there is no great problem with that on prefab panels, in your case with the length of walls you are looking at I would be worried about stability though.
Laying blocks is not difficult, it's just that it takes me a week to do what a pro does in a day, if you have the time that may not be the end of the world though, if you are going that way it's worth getting a mixer too. because of the length of walls you will need to use 8" blocks or add pillars every 8 feet or so too.
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Jul 28, 2022 20:08:53 GMT
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You could do a combination of prefab and block...
Back in the early 1980s my dad did just that - took down an existing sectional garage and rebuilt it to make it wider and longer. I don't remember a massive amount about its construction (I was just starting primary school!) but I do remember block work piers with the concrete panels in between, and a little workshop across the end. The steel angle iron roof trusses were widened by stick welding extra angle iron in.
Might not be entirely what you're after, but food for thought.
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1968 Cal Look Beetle - 2007cc motor - 14.45@93mph in full street trim
1970-ish Karmann Beetle cabriolet - project soon to be re-started.
1986 Scirocco - big plans, one day!
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Jul 28, 2022 22:49:54 GMT
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Having done something similar with a large double garage at my last house (21ft x 22ft), the best advice I can offer is to consider the driveway to the garage and what it will be made of. I used gravel and when the kids came along it was a lot of wasted space as they couldn't ride their toys on it and we couldn't use if for anything really.
If it was a hard surface such as concrete, tarmac or block paving it would have been really useful but as it was it was a waste of a large amount of space.
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