Is it possible to have both a Garage and Garden room?

[prt]

I'm thinking of starting a new project, and building a new garage that can double up as a garden room for office space or extra room space should we need it in the future so will need to be insulated. 

 

I have paving at the moment, 2cm porcelain, which our landscaper said should strong enough to park a car on. Not sure though? 

 

However, Would it be suitable to build a timber garage shell on top of these pavings. Similar to the building in this image. And then have an insulated roller door on the far side for the car access. 

 

Any advice would be great 

Thanks 

 

[nod]

Same answer to both questions 

It will depend on what’s under the porcelain 

I tile car showrooms with 10 mil porcelain No problem at all 

Try running your car on it 

 

[prt]

Thanks good idea. They are on an old concrete slab where the previous garage was. Then concrete mix, and pavers on top. 

 

 

[joth]

 I like this, would make a lovely bike workshop

 

The building control sign off maybe a pain if they decide it is indeed a garage - needs fire and spill protection for any attached building. Of course if this is a stand alone building it will be a bit simpler.

 

Similar question in my mind about permitted development vs needing planning permission, but I'm not so familiar with navigating that one myself. (e.g. garden rooms usually are permitted dev, but if it's deemed a garage does that complicate it?) 

 

[prt]

22 hours ago, joth said:

 I like this, would make a lovely bike workshop

 

The building control sign off maybe a pain if they decide it is indeed a garage - needs fire and spill protection for any attached building. Of course if this is a stand alone building it will be a bit simpler.

 

Similar question in my mind about permitted development vs needing planning permission, but I'm not so familiar with navigating that one myself. (e.g. garden rooms usually are permitted dev, but if it's deemed a garage does that complicate it?) 

 

 

That's exactly the plan! A bike workshop for now, but flexible for a garage and office space in the future if needed. 

 

The building will be at the end of our garden and not attached so should be good. Though in Wandsworth you need planning permission for anything over 15sqm

 

I worry about water ingress from the floor perhaps Arco drainage around it could help. And whether the insulation will be sufficient to keep it warm or the lack of insulation on the flooring will be an issue. 

 

 

[kandgmitchell]

So Wandsworth have taken away (nearly) everyone's rights in the borough to do this in their garden?:

 

Permitted development

E.  The provision within the curtilage of the dwellinghouse of—

(a)any building or enclosure, swimming or other pool required for a purpose incidental to the enjoyment of the dwellinghouse as such, or the maintenance, improvement or other alteration of such a building or enclosure; or

(b)a container used for domestic heating purposes for the storage of oil or liquid petroleum gas.

Development not permitted

E.1  Development is not permitted by Class E if—

(a)permission to use the dwellinghouse as a dwellinghouse has been granted only by virtue of Class M, N, P  or Q of Part 3 of this Schedule (changes of use);

(b)the total area of ground covered by buildings, enclosures and containers within the curtilage (other than the original dwellinghouse) would exceed 50% of the total area of the curtilage (excluding the ground area of the original dwellinghouse);

(c)any part of the building, enclosure, pool or container would be situated on land forward of a wall forming the principal elevation of the original dwellinghouse;

(d)the building would have more than a single storey;

(e)the height of the building, enclosure or container would exceed—

(i)4 metres in the case of a building with a dual-pitched roof,

(ii)2.5 metres in the case of a building, enclosure or container within 2 metres of the boundary of the curtilage of the dwellinghouse, or

(iii)3 metres in any other case;

(f)the height of the eaves of the building would exceed 2.5 metres;

(g)the building, enclosure, pool or container would be situated within the curtilage of a listed building;

(h)it would include the construction or provision of a verandah, balcony or raised platform;

(i)it relates to a dwelling or a microwave antenna; 

(j)the capacity of the container would exceed 3,500 litres 

[prt]

It would seem so yes. https://www.planningportal.co.uk/permission/common-projects/outbuildings/is-building-regulations-approval-needed-for-an-outbuilding

 

Building a detached garage of less than 30 square metres of floor area would not normally need building regulations approval if:

• the floor area of the detached garage is less than 15 square metres.
• the floor area of the garage is between 15 square metres and 30 square metres, provided the garage is at least one metre from any boundary, or it is constructed substantially of non-combustible materials.