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Prepositions with nouns

“Of house” or “in house”?

In house is a common expression meaning inside an organisation or building. Of house is not usually a natural standalone construction in modern English.

Quick answer

Which form is correct?

Use in-house for work done within a company or organisation, or in the house for location. Of house is uncommon unless it belongs to a larger phrase such as owner of the house.

We have an in-house legal team.
Everyone stayed in the house during the storm.
She is the owner of the house near the lake.

Choose the pattern by meaning

These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.

1
in-house

Work or services inside an organisation

In-house describes something handled internally rather than by an outside provider.

The company built an in-house design system.
2
in the house

Location inside a building

Use in the house for physical position inside a home or building.

There was nobody in the house after midnight.
3
owner of the house

Possession or relationship

Of commonly appears after another noun to show connection with house.

The owner of the house greeted us warmly.

See the difference in context

The same subject can take different constructions because each sentence answers a different question.

Construction
Example
Meaning
in-house
We use an in-house accounting team.
Inside an organisation; internal.
in the house
The children are in the house.
Inside a building.
of house
This phrase is not usually used alone in standard English.
Normally replaced by of the house or another fuller phrase.

Common mistakes

Some combinations appear in real text but do not mean what learners often assume.

Using of house as a complete phrase

English normally needs an article or another noun before house.

✕ the roof of house ✓ the roof of the house

Confusing in-house with location

In-house usually refers to internal business activity, not physical location.

✕ We slept in-house. ✓ We slept in the house.

Quick practice

Choose the expression that matches the intended meaning.

1. The company keeps all marketing work ___.
2. Nobody was ___ when we arrived.
3. Choose the natural phrase: the garden ___

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Frequently asked questions

Is of house correct English?

Not usually as a standalone phrase. English normally uses of the house or another complete expression.

What does in-house mean?

It means done within a company, organisation, or group rather than externally.

Can in-house describe people?

Yes. You can say in-house lawyers or an in-house team.

of, about, against, to or for racism? of, about, for, in or on friendship? of, about, for, on or to thing? of, about, for, to or with sex? of, about, on, to or for moon? "of access" or "with access"? "of accommodation" or "for accommodation"? "of accuracy" or "for accuracy"? "of action" or "in action"? "of actor", "with actor" or "by actor"? "of address" or "to address"? "of administration" or "in administration"?

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