Le constat locatif compare l’état des lieux d’entrée.

Because constat is a masculine singular noun in French. The article and adjective have to agree with it:

• le constat = the report / the finding
• locatif = rental-related

So the full phrase is le constat locatif.

If the noun were feminine, the forms would change, but here they do not because constat is masculine.

It is a noun phrase made up of:

• constat = the main noun
• locatif = an adjective describing that noun

So locatif tells you what kind of constat it is: a rental-related one.

This kind of adjective often comes after the noun in French, especially in formal or administrative language.

In French, many adjectives come after the noun, and this is especially common with classifying or technical adjectives like locatif, administratif, juridique, commercial, and so on.

So:

• un contrat locatif
• un document administratif
• une procédure juridique

This is normal French word order, not an exception.

Yes. Compare is the third-person singular present tense of comparer.

So the structure is:

• Le constat locatif = subject
• compare = verb
• l’état des lieux d’entrée = direct object

It works just like English compares, except French does not add an -s in writing here because the verb ending already shows the form.

État des lieux is a fixed expression in French, especially in housing and rental contexts.

Literally, it looks like:

• état = state / condition
• des lieux = of the premises / of the places

But as a whole, état des lieux means something like:

• property condition report
• inspection report
• move-in / move-out inventory

It is grammatically singular because the head noun is état, which is singular.
The word lieux is plural inside the expression, but that does not make the whole phrase plural.

So:

• l’état des lieux est prêt = singular
• les états des lieux sont prêts = plural

No. Here des does not mean the plural article some.

In this expression, des is the contraction of:

• de + les = des

So état des lieux literally means state of the premises.

This is an important point, because French des can mean different things depending on context:

• des livres = some books
• la porte des chambres = the door of the rooms

In état des lieux, it is the second type: of the.

D’entrée means at entry, on moving in, or at the beginning of the tenancy.

It is short for the idea of when the tenant enters the property. In rental French, this contrasts with:

• état des lieux d’entrée = move-in inspection / entry inventory
• état des lieux de sortie = move-out inspection / exit inventory

So d’entrée is specifying which inspection report we are talking about.

This is called elision. In French, certain short words drop a vowel before a following word that begins with a vowel or silent h.

So:

• le état becomes l’état
• de entrée becomes d’entrée

This is very common in French and helps the language sound smoother.

Other examples:

• l’école
• l’homme
• j’aime
• c’est

Because comparer can take a direct object.

So you can say:

• comparer quelque chose = to compare something
• comparer A à B = to compare A to B
• comparer A et B = to compare A and B

In your sentence, only one thing is stated directly after the verb:

• compare l’état des lieux d’entrée

That means the sentence is either:

1. using comparer with a direct object in a general way, or
2. leaving the second item understood from context.

A fuller version would often be something like:

• Le constat locatif compare l’état des lieux d’entrée à l’état des lieux de sortie.

Yes, but it sounds formal and administrative, not conversational.

Words like constat locatif and état des lieux belong to the language of:

• renting
• contracts
• property management
• legal or housing documents

So a native speaker would understand it, especially in the right context, but it does not sound like everyday casual speech.

Also, many speakers might expect a fuller comparison, such as comparing the move-in inspection with the move-out inspection. So the sentence is understandable, but it may feel slightly incomplete on its own unless the context already makes the second point of comparison clear.

A rough pronunciation is:

luh kohn-sta loh-ka-teef kom-pahr lay-tah day lyuh dan-tray

A more French-like approximation would be:

lə kɔ̃sta lɔkatif kɔ̃paʁ leta de ljø dɑ̃tʁe

A few useful pronunciation notes:

• constat has a nasal vowel in the first syllable
• compare ends with a French r, not an English r
• état sounds like ay-ta
• lieux is pronounced roughly like lyuh
• d’entrée flows together smoothly because of the elision