Extension Foundations

[EAGLEBLOKE]

I have a single story extension at rear of my bungalow.
The floor level is about 2 ft above garden level.
However this 2 ft of foundation goes only about 6 inch below garden level.
Extension is about 20 years old . Is this acceptable.
Open link below for photo.

 

[masona]

A photo will help us if possible..........

 

[EAGLEBLOKE]

Click here for a picture

 

[EAGLEBLOKE]

A photo will help us if possible..........

Have posted photo

 

[Johndug]

I wouldn't have thought so. Was it built with building control approval? I built a 10'x10' kitchen extension on my house in 1978, and even as long ago as that, the trenches had to go way below the house footing. In fact, just over a metre deep.

 

[shaggy]

It's acceptable if it's been there for 20 years with no movement though? It could be a slab foundation reinforced with steel mesh?

 

[Thermo]

i tend to agree that if it aint broke dont fix it! Many victorian houses are still standing even though they were built on minimal foundations. As shaggy said it could be a raft foundation, in which case all you would have would be a concrete apron at the edges of the slab

 

[EAGLEBLOKE]

It's acceptable if it's been there for 20 years with no movement though? It could be a slab foundation reinforced with steel mesh?

Has been built at least 15 years, maybe longer. Has a few hairline cracks to exterior.

 

[EAGLEBLOKE]

I wouldn't have thought so. Was it built with building control approval? I built a 10'x10' kitchen extension on my house in 1978, and even as long ago as that, the trenches had to go way below the house footing. In fact, just over a metre deep.

No building control or planning permision.

 

[EAGLEBLOKE]

i tend to agree that if it aint broke dont fix it! Many victorian houses are still standing even though they were built on minimal foundations. As shaggy said it could be a raft foundation, in which case all you would have would be a concrete apron at the edges of the slab

Looks like its got apron.

 

[shaggy]

Perhaps it did have more foundation depth but the soil has been removed after someone saw one of those tv progs like 'groundforce'?

 

[Thermo]

whats the soil eg chalk rock etc?

 

[Thermo]

sorry to ask the obvious, but why is it of concern? As i said its been standing a long time with no problems, unless your planning to build upwards theres not much to worry about really

remeber folks dont have sleepless nights out there!

Thermo

 

[EAGLEBLOKE]

sorry to ask the obvious, but why is it of concern? As i said its been standing a long time with no problems, unless your planning to build upwards theres not much to worry about really

remeber folks dont have sleepless nights out there!

Thermo

Planning to build another extension to side of it. Worried this may affect its stability. Also worried what planning office will say.

 

[EAGLEBLOKE]

Perhaps it did have more foundation depth but the soil has been removed after someone saw one of those tv progs like 'groundforce'?

No thats just wishfull thinking.