After its capture the fortress was in badly damaged state and the Austrians began to repair and rebuild it.
There was not a clear plan and coherence was hampered by the need for it to always remain functional.
Many schemes were suggested between 1717 and 1727, but none were executed.
Just after the conquest the military engineer Captain François Perrette, who had laid out the fortifications in Slavonski Brod in 1715, was tasked with making a topographic map of the fortress along with proposals for new fortifications.
He made three plans, the first two in October 1716 and February 1717, which were considered very accurate, and the third, published in 1729, contained plans for the proposed fortifications.
The first fortification, built in 1716, was the "New Ravelin", meant to defend Palanca Mică from the south.

A first proposal was to build bastions along the old wall from the north.
The Palanca Mică was to be preserved and barracks were to be built at its eastern end.
The problem was the small space inside the walls.
However, the project provided configuration of the Casemated Barracks, later known as the Transylvanian Barracks, which would close the fortress perimeter from the southeast.
The Palanca Mică area was proposed as a residential area.

Another proposal was to build a residential area to the southeast of the barracks.
It was less exposed to a potential siege due to its location in the swamp.
However, the proposed bastions were designed in Italian style, already obsolete, and the form of the fortification was unsuitable for the principles of an ideal city.
The project indicated that it had already been decided that the fortress would have three layers of fortification.

Geyer's proposal was to keep the fortress together with the castle, keeping an extension area to the southeast.
There were proposals for the extension of this area even after the construction of the first wall was complete, as can be seen in plan no.
3 from 1734.
Plan no.
3 is the first official plan that included the entire outline of the fortifications.
In it the elements depicted in red were buildings that had already been raised (the Casemated Barracks and the fodder supply warehouse of the Theresia Bastions).
The ones sketched in black had their foundations laid, and the ones in yellow represented the proposals to close the curtain wall.

The foundation stone of the future fortress (German: Festung Temeswar) was laid on 25 April 1723.
A zinc plaque inscribed was with "Imperante Carolo VI, Duce Eugenio Sabaudiae Principe per cladem Petro-Varadini MDCCXVI a Turcis recuperata Provincia, sub preadisio Claudii Comitis a Mercy anno a patru Virginis MDCCXXIII die XXV.
mensis Aprilis Temesvarini moenia fundabantur", but the plans indicate that the main work began later.
The first work was on the Infantry Casemated Barracks, built between 1727 and 1729.
At that time the plan for the fortress had not been finalised.

In 1732 a significant part of the fortress was designed and the digging of the moat from the front of the future bastions began.
It took one year to excavate the trench and erect the curtain wall and the counterscarp.
The construction was delayed due to the prior execution of hydrotechnical works to provide the water needed for the Fortress, executed between 1728 and 1732.

The first defensive wall belts of the fortress were finished in 1740.
The first wall had 8 bastions (there were 9 eventually) in Pagan style (precursor of the Vauban style fortifications) and the curtain walls between them.
The second one had eight ravelins placed in front of the inner works of the fortress (the curtain walls and bastions).
This gave a clear picture of how the town would look and how long it would be a non aedificandi area.
In 1744, the sites of the German and Rascian suburbs were approved (the current Iosefin and Mehala quarters).

The plan of the fortress in 1808 (see the infobox) shows its final shape, as the three wall belts had already been finished in 1764.
The adjacent picture is drawn based on this plan and highlights the details.
The various shades
After its capture the fortress was in badly damaged state and the Austrians began to repair and rebuild it. There was not a clear plan and coherence was hampered by the need for it to always remain functional. Many schemes were suggested between 1717 and 1727, but none were executed. Just after the conquest the military engineer Captain François Perrette, who had laid out the fortifications in Slavonski Brod in 1715, was tasked with making a topographic map of the fortress along with proposals for new fortifications. He made three plans, the first two in October 1716 and February 1717, which were considered very accurate, and the third, published in 1729, contained plans for the proposed fortifications. The first fortification, built in 1716, was the "New Ravelin", meant to defend Palanca Mică from the south. 
A first proposal was to build bastions along the old wall from the north. The Palanca Mică was to be preserved and barracks were to be built at its eastern end. The problem was the small space inside the walls. However, the project provided configuration of the Casemated Barracks, later known as the Transylvanian Barracks, which would close the fortress perimeter from the southeast. The Palanca Mică area was proposed as a residential area.
Another proposal was to build a residential area to the southeast of the barracks. It was less exposed to a potential siege due to its location in the swamp. However, the proposed bastions were designed in Italian style, already obsolete, and the form of the fortification was unsuitable for the principles of an ideal city. The project indicated that it had already been decided that the fortress would have three layers of fortification.
Geyer's proposal was to keep the fortress together with the castle, keeping an extension area to the southeast. There were proposals for the extension of this area even after the construction of the first wall was complete, as can be seen in plan no. 3 from 1734. Plan no. 3 is the first official plan that included the entire outline of the fortifications. In it the elements depicted in red were buildings that had already been raised (the Casemated Barracks and the fodder supply warehouse of the Theresia Bastions). The ones sketched in black had their foundations laid, and the ones in yellow represented the proposals to close the curtain wall.
The foundation stone of the future fortress (German: Festung Temeswar) was laid on 25 April 1723. A zinc plaque inscribed was with "Imperante Carolo VI, Duce Eugenio Sabaudiae Principe per cladem Petro-Varadini MDCCXVI a Turcis recuperata Provincia, sub preadisio Claudii Comitis a Mercy anno a patru Virginis MDCCXXIII die XXV. mensis Aprilis Temesvarini moenia fundabantur", but the plans indicate that the main work began later. The first work was on the Infantry Casemated Barracks, built between 1727 and 1729. At that time the plan for the fortress had not been finalised.
In 1732 a significant part of the fortress was designed and the digging of the moat from the front of the future bastions began. It took one year to excavate the trench and erect the curtain wall and the counterscarp. The construction was delayed due to the prior execution of hydrotechnical works to provide the water needed for the Fortress, executed between 1728 and 1732.
The first defensive wall belts of the fortress were finished in 1740. The first wall had 8 bastions (there were 9 eventually) in Pagan style (precursor of the Vauban style fortifications) and the curtain walls between them. The second one had eight ravelins placed in front of the inner works of the fortress (the curtain walls and bastions). This gave a clear picture of how the town would look and how long it would be a non aedificandi area. In 1744, the sites of the German and Rascian suburbs were approved (the current Iosefin and Mehala quarters).
The plan of the fortress in 1808 (see the infobox) shows its final shape, as the three wall belts had already been finished in 1764. The adjacent picture is drawn based on this plan and highlights the details. The various shades 
Timișoara Fortress