Nowadays, a lot of landed G&G are strata title property which need to follow house rule or management rule under DMC.

In a strata title property, you need to follow the house rule or DMC agreed.

So if want to install whatever like design one, then look for non-strata property.

Actually the purpose of such rule on renovation issue is to make the housing area look neat and nice. Every house with same gill design matching the theme of the building, look nice and neat as compared every unit design totally different, rojak across, may not look so "high class".

Management only can govern the exterior look on renovation, interiorly, there is no restriction, so if the grill install inside, generally management won't care.

The mindset live in a strata property is different with non-strata property.

The renovation restriction generally on exterior look.
This is difference between strata title property vs non-strata.

Strata title property, the concept is to live in a community follow a common house rule.

If do not like such restriction, individual title property is the option.

Alternative, the rule can be changed via EGM/AGM of the JMB/MC.

So elect yourself become chairman and form a team of management of your own, set a resolution to change the rule of cannot install grill, every owner vote "yes", then viola, issue solved on grill installation.