Yes. As you can see from the pictures, the columm is narrow.
Going to dismantle the Carporch tiand and build up a wider one. 

yeah I know. That is my next "emergency" meeting potential wireman on sunday 

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Added on July 22, 2011, 1:30 pmRenovation Update:-

My future car porch columm base and My future back room....


How they lay a concrete floor:-

Lay wire mesh



Mix concreate and pour over the area


Ta Dahhhh   

Most local authorities allows rear extension up to the boundary with 450mm roof overhang. 
Without looking at the actual work, it would not be proper to comment that the construction is not in compliance. 
If you take a proper look at some of the earlier photos, you will noticed that the ground beam was constructed below the ground slab. This was so that the beam will not block the doorway (back door)
As to whether the beam was constructed to specification, cannot comment as not much was shown.

i see normally ppl will put spacer to secure on the wire mesh so that the wire mesh will be about 20mm in the concrete slab... probally more strength....

Oh. This is new to me. I'll talk to the contractor before he do the car porch. Thanks. Can a PE plastic sheet serve the same purpose?

monopitch roof is more expensive right?

just flat concrete roof enough...simple and nice...

This is the plastic film that I am going to use as a vapor barrier for my car porch concrete bottom. 

Don't really need it but, I actually work in the plastic industry.
So thought it is appropriate that I use some of the things my company produce myself. hee hee 



The specification for this plastic (me waxing lyrical..)

LLDPE Metallocene Film. -
1.LLDPE is Low Linear Density Polyethylene - Virgin grade (Those avalaible in the hardware shop all using recycled resin)
2.Metallocene - A high grade of plastic resin that provides exceotional tensile strenght.

Dimension
4400mm X 120micron
1.4400mm width (!4 feet) - The widest film that I can find at the moment. (Hardware shop usually 9 feet wide)
2. Thickness 120 micron = 0.12mm (Hardware shop ranges from 80 - 200 micron)

Actually this film was produced to be used as a liquid bulk bag inner liner, I taken some to use in my house. 

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Added on August 11, 2011, 7:27 pm

I can wait. You are ahead of me in renovation progress. You go ahead.
I am still rethinking about the gate any many other fittings. Budgetary woes. sigh...