The first block is particularly impressive because of its hidden structural design. It was the first time that a steel-frame structure had been used for residential construction in Czechoslovakia. This made it possible to complete the construction in just three months. It was used for the first block standing now in the middle of the housing estate at the junction of the streets Vajnorská and Bajkalská north of the little park. As the cost of steel rose sharply afterwards, the second and southern and third and northern blocks were already built using reinforced concrete construction. All three blocks are situated one behind the other on the right-hand side of Vajnorská Street when leaving the city centre.
From the outside, all three blocks appear nearly identical and each contains 162 flats. These are divided into five dwelling types with floor areas ranging from 34.5 to 56.7 square metres. The smallest one-room flats are therefore very compact. The quality of living is improved by the fact that the U-shaped block is closed off towards Vajnorská Street, making the inner courtyard quiet and sheltered. Today, the entire courtyard is enclosed and cannot be accessed from outside.
The three blocks are situated along Vajnorská Street and extend south-eastwards into the neighbouring streets. However, all entrances are registered under the Vajnorská address. In the first two blocks, Nos. 48–78, each block has eight entrances. In the third block, there is an additional ninth entrance on the main road, connected to the corresponding residential units. We still not know, whether the last block contains also 162 flats.
Typical of these blocks are their zigzag-shaped floor plans. This approach had already characterised residential construction in Bratislava earlier on, for example by placing the entrances within the recessed main block. The projecting sections are used for the living rooms and are therefore positioned away from the stairwell, helping to minimise noise levels. At the same time, this design allows additional natural light to enter the rooms from three sides.
In the Nová doba housing estate, the entrances are generally located within the interior of the block, except in the third block, where the entrances to the “9th residential section” face Vajnorská Street. This also helps to avoid unnecessary walking distances.