Laying new lawn (plowing the old area...)

Good day everyone,
In the fall of this year/spring next year we would like to start the outdoor work on our property.

We have a piece of land behind the house of about 1200 sqm, which is mainly planted with grass, with a hedge around the property borders and otherwise bushes, as well as a compost pile for green waste.
A carport is to be built there. Also, a small vegetable garden (~20-30 sqm) is to be created.
Everything else, like playground equipment for the children, will go on the lawn.

Now to our problem.
The lawn. Or rather, there is hardly any lawn here (anymore). Only weeds, moss, and lawn remnants.



We would now like to ask a farmer to plow the property for us.
So that we can then sow new grass.
Unfortunately, I basically do not know how we should proceed there.
But I have not yet done much research.

Now to your opinion:
It is estimated to be an area of about ~900-1000 sqm.
If we divide this and have the farmer plow 50% first in autumn `19. Then sow grass - can he still manage that before winter?
The other part in spring '20?

Or is that complete nonsense?

We have been advised by a landscaping company on some things; they also include in their offer what they would charge for the area.
Can you say what something like that costs and what a fair price would be?
Unfortunately, the offer is not yet available.

Do you have any other tips for us on what we should pay attention to if we do everything ourselves?
Or would you handle it fundamentally differently?

Thank you very much for your help!

Plowing is already a good idea. Everything in autumn, then leave it over winter. Like a field. In spring, the weeds will grow. They have to go. Spray once with Roundup. Then harrow. So level the plowed soil with a rake. Sow the lawn in May and roll it with a roller. Wait. Done.

With all due pragmatism, nordlys

In spring, the weeds come up. They have to go. Once over with Roundup

I do not find that exactly compatible with these wishes

"As well as a small vegetable garden being created (~20-30sqm). Everything else like play equipment for the children goes on the lawn."

Please no Roundup! Especially not with children!

I would recommend plowing and sowing in October. My lawn, sown in spring and very carefully tended and regularly watered, unfortunately did not survive this hot and dry summer (already in spring) in many places :-( All the work was for nothing!

The lawn sown in autumn was strong enough until summer.

If the lawn gets off to a really good start, not much weed will come through. If it does, you can still see what to do about it. Roundup is not a solution for us. Although right now we have more weeds than lawn in the front yard! It will be scarified soon, and before that I have already pulled out 90%.

Thank you first of all for your opinions and tips!.

That's why I wrote to do it in 2 breaths.
From autumn to May/June not being able to enter the garden, or rather the field, we did not want that because of the children.
We don't need an English lawn here, but definitely something has to happen.
At one spot nothing grows anymore, as you can see in the picture...

We really have to think it over again about what makes the most sense.
Especially since we will definitely be busy with the interior renovation until mid-October.
But waiting another year... Phew...

Thank you for your advice!

Roundup does not harm the children at all, they are not supposed to eat it. Fresh sowing can already take place on the area 48 hours after applying the agent. Please get expert knowledge first, then complain.