
  Wooden four-family houses of the interwar period in Hajnówka and Czarna Białostocka  5
Before World War I, Hajnówka had about 600 inhab-
itants (Pater 2016,  130),  and  after  the events of  the  war, 
fewer than two hundred. Over time, the town gained eco-
nomic importance and  became  […]  the  largest center  of 
the wood industry in north-eastern Poland. Development 
is  going  at  such  a  fast  pace  that  Hajnówka  has  already 
surpassed Bielsk in terms of the number of inhabitants 
(Karpiński, Orłowicz 1937, 54). At the end of the 1930s, 
Hajnówka was inhabited by several thousand people, with 
some sources claiming that in 1939 there were up to 17,000 
inhabitants in the town (Pater 2013, 95).
Czarna  Białostocka  also  owes  its  intensive  develop-
ment to the wood industry. In 1915, the Germans built six 
sawmills, a woodchip production plant, workshops, a pow-
er  plant  and  narrow-gauge  railway  lines  for  transporting 
wood in the village near the Czarna Wieś station (Dobroń-
ski 2014, 89). The industrial base left after the German oc-
cupation was expanded after the war and became the main 
driving force behind the development of the town. In 1962, 
the town was transformed into the city that today is called 
Czarna Białostocka.
In the interwar period, as a result of the economic devel-
opment of both towns, there was a large increase in the pop-
ulation and, consequently, a rapid increase in demand for 
housing. In order to satisfy the demand, numerous houses  
were erected. The construction of new buildings was of-
ten done in a chaotic manner. At that time, Haj  nówka was 
described as follows: Nevertheless, it has the character of 
a semi-rural industrial settlement and is built up quite un-
systematically (Karpiński, Orłowicz 1937, 54). Over time, 
housing  estates  appeared,  which  were  given  a  uniform 
architectural  character.  Because  of  their  orderly  compo-
sition, they tended to stand out in the urban structure of 
the town.
The State Forests Company and the quads
An important role in the management of forest re-
sources  was  played  by  the  State  Forests  company  [Lasy 
Państwowe]. It was established in 1924 (Lasy Państwowe, 
2024). The nal organization of the company was complet-
ed in 1930. The management of the company was provided 
by the General Directorate of the State Forests, established 
in 1930 (Broda 2006, 103). It was responsible for the Tech-
nical  Oce  of  the  Construction  Department,  and  in  the 
years 1937–1938 many designs of typical buildings were 
developed by this oce. A common feature of these struc-
tures was, of course, the use of wood as the basic build-
ing material. The functions of the buildings correspond-
ed to the needs of the State Forests. Designs for a typical 
forestry  oce,  forest  inspector’s  lodge,  forester’s  lodge, 
gamekeeper’s lodge, farm buildings and many others were 
prepared
1
. Among them were residential buildings. These 
included designs of houses for 20 and 40 seasonal workers, 
barracks  and  2-,  4-  and  6-apartment  workers’  buildings. 
The four-family houses erected in Haj nówka and Czarna 
1
  Based  on  a  query  at  the AAN  in  Warsaw,  Ministry  of  Internal 
Aairs, le no. 2/9/0/5.5/I 3953-3967.
Białostocka have the same attributes as a typical design of 
a 4-apartment workers’ building, marked with the symbol 
r2 (Fig. 2).
The  typical  design  r2,  developed  in  February  1938, 
was the documentation of a “4-family workers’  building” 
with    a  built-up  area  of  206.5  m
2
  and  a  cubic   capacity 
of  654.2  m
3
. The designed area of the segment was 
43.76 m
2
.  The two-room apartments consisted of a  kitchen  
(14.51  m
2
),  a  room  (22.13  m
2
),  a  hall  (2.86  m
2
) and 
a   pantry  (4.26  m
2
). The entrance to the apartment led 
through a hallway. From the hall you could go to the kitchen 
and pantry. The fa mily room was accessible only through 
the kitchen. A ladder through a hatch in the ceiling made 
it possible to enter the attic. In addition, there was a cellar 
under  the  pantry,  accessible  through  a  hatch  in  the  oor, 
and a chute led to it from the outside. The designed build-
ing had a log structure, external walls which were 12.5 cm 
thick, internal structural walls which were 10 cm thick, and 
partition walls consisting of two layers of boards. The roof 
truss had a purlin-tie structure. The purlins were support-
ed by posts. The proposed roof covering was shingles. The 
project also provided for the possibility  of  dierent  roof-
ing, which was “dependent on local conditions” (Fig. 2)
2
. 
A simple, compact body on a rectangular plan was covered 
with  a  hip  roof. The  roof  slope  was  broken  at  the  eaves. 
There were small dormers in the roof to illuminate the attic. 
The entrance was accentuated by an open porch.
A  typical  project  can  be  compared  to  the  completed 
quad in Czarna Białostocka  (Fig.  3). The materials were 
provided by  eld  research  and  a  measurement  inventory 
of one segment of the quad. The area of the apartment 
is  about  43  m
2
. The apartment consists of the following 
rooms:  hall  (3.2  m
2
),  pantry  (3.8  m
2
),  kitchen  (14.2  m
2
) 
and room (21.8 m
2
). The height of the rooms was about 
270 cm. From the hall it was possible to go to the kitchen 
and to the pantry. A ladder led to the attic. In addition, there 
was a  small  cellar  under  the  pantry. A  hatch  in  the  oor 
granted access to the cellar from the pantry, and from out-
side the building through a chute. The kitchen had a tiled 
kitchen range. The room was accessible through the kitch-
en and was heated by a tiled stove. The architectural form 
does not dier  from  the one proposed in the r2  project
3
. 
The same or almost the same solutions were used in the 
quads in Hajnówka (Fig. 4).
The  utility  program  of  the  quads  was  complemented 
by  farm  buildings.  They  consisted  of  two  large  rooms. 
One was intended for storing lumber to be used for fuel, 
the  other  for  backyard  breeding,  mainly  pigs  and  chick-
ens (Dużyński 2024). In addition, there were toilets in the 
outbuilding. In the case of Czarna Białostocka, they were 
placed  in  the  body  of  the  farm  building  (Fig.  5),  while 
in  Hajnówka  they  were  placed  separately  from  the  farm 
2
  From the descriptive part of the design of a typical 4-apartment 
worker’s  building,  marked  with  the  symbol  r2  (source:  Typowy  pro-
jekt…, AAN in Warsaw, le no. 2/9/0/5.5/I 3955).
3
  In  some  buildings,  there  were  slight  dierences,  e.g.,  the  form 
of  the  window  to  the  vestibule  and  pantry.  Due  to  the  reconstruction 
of most buildings, it is dicult to determine in which buildings which 
solutions were adopted.