Hi all,

I want to ask. If there is a single storey house and i want to extend it to double storey, what would be estimated cost to do that?

maybe price per sq feet will do

thanks

1st of all, u need to know whether the existing structure can take the extra load & weight.

If yes, then only u proceed to get cost estimate.

If no, scrap the idea.

definitely can cuz similar unit at the other end had done it

but u should clarify u are corner lot, end lot or intermedia lot. if u are intermedia lot, my opinion extend it to 1.5 storey
i c some nice design for 1.5 storey b4

This post has been edited by Alan Soo: Feb 9 2010, 11:35 PM

<rm100/sqfeet

150k

Do not be ultra-sure just by observing. Maybe that unit is using a special "method" to get his plans approved. Maybe you can try observe the same unit for about a year and see it's still in "good shape" or not then make a conclusion.

But do you know whether they strengthen the foundation? Do you think a developer will over provide the strength of foundation for a single storey so that it can be converted to double storey?
BTW yours is consider demolition & rebuild, not extend

brotan, why dont you ask the owner of this "similar unit" as well? maybe u can get a good deal for the contractor too

Engineers usually double the load required for a building for safety reason. But when u extend another floor up, its hard to say wheter your existing structure now can support the second floor.
What contractor usually do is to strengthen the current stracture by modifying or adding to existing structure.
So the questions is, with the cost and the risk of the structure collapsing and you taking the full responsibility (dun even try to think that you can ended up blaming the architect, engineer, and contractor), is it worth the risk.
And also, local authority will not allow this kind of extension. I heard the few years ago DBKL allows this kinds of renovation but stop already

No need to know anything.. the contractor will not stupidly building another story just like that..
(based on if owner say it can or cannot support).
Whether your existing stucture can take extra load or not doesn't matter.. They know how
to evaluate. They know how to reenforce the current structure and how many extra columns
are need to be added and how to make the proper foundation..

The main point is, yes, the technology to transform your house from 1 to 2 storey or 2 to 3 storey is there.
As long as you got the money.. it doesn't matter how is your existing house structure.

The worst case is, demolish existing house and rebuild from scratch

i am just considering but not decided. if the risk is too high and too much cost, definitely will scrap the idea

This is plain stupid.

Ur opinion could put a whole family at risk. Contractors work for money. Most nowadays would just do whatever the client ask them to do. They're not engineers, they're not architects. Heck, even an IR would miscalculate the structure of his own hse's awning.

A wrongly built structure can collapse totally in less than a minute. Yes, money can do a lot of things, but why overspent ?

This showed that you know nuts about building or how it works. Sure hope you're not a contractor or engineer.

i am also interested to know. how much would it cost to demolish & rebuild a 1s to 2s? even to demolish a 2s to 2.5s?

It does matter as your house strutural are being calculated carefully by the engineer before being developed. Mostly these days, to save money, the developer will only makes the strutural goes for 1.5 storey load.

And most contractor knows nothing about structural. If anyhow adding the column will sustain the 1st floor slab, think twice. It should be design at specific area whereby the engineer roles comes in handy.

Around RM 80 - RM 100 / per sq.ft. This is reference for Sabah housing property.

When I said "they", I meant the contractor + engineer + architect + ... It's my fault for just mentioning the
contractor alone..

In order to do this, as usual, you need approval. To get approval, you must have a plan and the plan must be approved by architect.. For the architect the approve the plan, the architect must know exactly the load of the structure, etc. If architect approved it, chances are the building should be ok (but accident do occurs like MRR2 crack, collapsed Terengganu's stadium, collapsed highland tower, etc). Normally, the contractor just follows the plan given to them.

I've seen a few link houses that has been converted with an extra storey.. I'm just not sure whether the town council approves them or not.

b4 u can even start building the 2nd storey, remember to apply for approval from your Majlis Perbandaran otherwise this will consider illegal renovation,they will be bound to be demolish within 3 days from the day they issue the summon, failing to do that by yourself, all the cost of demolishing will be bound by you if they do it for you.

For the 2nd storey, the cost depend on how big is the house.

This post has been edited by Tohsan: Feb 11 2010, 12:31 PM

The plan is not approved by architect or engineer. It is drawn by them and submit to local council for endorsement (approval).

Not really.. I just renovated my house.. For the local council to give approval, among the required document that
must be submitted is the plan/floor plan has been approved/signed by licensed architect..

This post has been edited by zeese: Feb 11 2010, 05:30 PM