Permission is required if you plan to extend or alter the roof space more than specified limits and conditions: 1  Volume increase of 40 cubic metres for terraced houses or 50 cubic metres for detached & semi-detached houses. ( 2 2-3 bedroom houses generally will be OK for dormers). Volume increase of 40 cubic metres for terraced houses or 50 cubic metres for detached & semi-detached houses. ( 2 2-3 bedroom houses generally will be OK for dormers). 3  No extension beyond the plane of the existing roof slope of the principal elevation that fronts the highway (i.e. no dormer to face the street).
The rules haven't changed in a few decades, but the customs have. In both houses of Congress, you still need a majority (50%+1) to pass a bill. In the House of Representatives, that's the only consideration. In the Senate, the rules are a bit more complex. If the bill makes it to a vote, it needs only 51 votes. But you need to debate before it gets to a vote.
1 A two-thirds vote or greater is needed in both the House and the Senate to override the President's veto. 2  If two-thirds of both houses of Congress vote successfully to override the veto, the bill becomes a law. 3  If the House and Senate do not override the veto, the bill dies and does not become a law.hile not all bills are the same, below you will find a basic step-by-step accounting of how a bill becomes public law. 1  Beginning of a Bill. 2  An idea for a bill may come from anybody, however only Members of Congress can introduce a bill in Congress. 3  Bills can be introduced at any time the House is in session.