Noudat die argitek die bouplan aangepas het, is dit gereed.

Noudat is a conjunction meaning now that. It introduces a subordinate clause and gives the background for the main statement.

So:

• Noudat die argitek die bouplan aangepas het = Now that the architect has adapted the building plan

In standard Afrikaans, noudat is normally written as one word.

Because die is the normal definite article in Afrikaans, like English the.

So both of these are definite nouns:

• die argitek = the architect
• die bouplan = the building plan

Afrikaans does not change the article for gender, and die is also used for all plural nouns.

In this clause, word order tells you that.

After noudat, the usual pattern is:

• subject
• object
• verb(s) at the end

So in:

• die argitek die bouplan aangepas het

the natural reading is:

• die argitek = the one doing the action
• die bouplan = the thing being adjusted

Afrikaans articles do not show case, so word order is very important.

Because noudat introduces a subordinate clause, and in Afrikaans subordinate clauses the finite verb usually goes to the end.

Here the tense is the perfect:

• aangepas het = has adapted / adjusted

So instead of an English-like order, Afrikaans puts the verb material at the end of the subordinate clause:

• Noudat die argitek die bouplan aangepas het

That final het is completely normal.

The verb is aanpas, meaning to adapt / adjust.

Its past participle is aangepas. With many verbs that have a separable prefix, Afrikaans inserts ge- between the prefix and the main part of the verb:

• aan + ge + pas → aangepas

So:

• aanpas = to adapt
• aangepas het = has adapted

This is because Afrikaans main clauses follow a verb-second pattern.

The whole first clause:

• Noudat die argitek die bouplan aangepas het

comes first. That occupies the first slot of the sentence. So in the main clause, the finite verb must come next:

• is dit gereed

Literally, the structure is:

• [Fronted clause], is dit gereed

If the sentence started directly with the main clause, then you would get:

• Dit is gereed

Both are correct, but the fronted subordinate clause causes the inversion.

Most naturally, dit refers to die bouplan.

So the idea is:

• the architect has adjusted the plan
• now it is ready

Afrikaans uses dit for it, and unlike some languages, there is no grammatical gender to worry about here.

Because gereed is being used as a predicate adjective after is.

In other words, it describes the state of dit:

• dit is gereed = it is ready

After linking verbs like is, Afrikaans adjectives normally stay in their basic form.

Yes. Afrikaans very often writes compound nouns as one word.

So:

• bou = build / building
• plan = plan

Together:

• bouplan = building plan / construction plan

This is a very common feature of Afrikaans spelling.

Because the sentence begins with a subordinate clause, and that clause is separated from the main clause with a comma.

So the structure is:

• Noudat ... het, is dit gereed.

The comma helps mark the boundary between:

• the background clause
• the main statement

This is normal Afrikaans punctuation.

Yes. Afrikaans can often rearrange clauses, depending on what you want to emphasize.

For example, you could put the main clause first:

• Dit is gereed noudat die argitek die bouplan aangepas het.

That still makes sense. The original version puts more focus on the now that idea first, and then gives the result:

• Noudat ... , is dit gereed.