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Appendix I: A note on educational buildings other than schools
1. The story told in this pamphlet is that of the post-war school, but the Ministry has been concerned with other kinds of educational buildings besides primary and secondary schools. There has been, on a lesser scale, the building of special schools for handicapped children, school clinics, and residential hostels (and sometimes complete new colleges or teaching blocks) for teachers in training. There has also been a programme of building for technical colleges which is now being rapidly expanded.
2. These types of building differ from primary and secondary schools in one important respect: their needs are so varied that each one must be considered individually. For this reason (and also because they are relatively few in number) statutory regulations governing the amount and standard of accommodation to be provided are applied only to day special schools for educationally subnormal children. It has thus not been possible to adopt the simple technique of a cost per place control.
3. Nevertheless controls have been devised to ensure that these buildings represent good value and an economic spending of public money, while still leaving the architect freedom for his creative ability.
4. The first part of the answer was found in the compilation of a schedule of accommodation based on a searching assessment of needs. Too often in the past clients had given their architects only a vague idea of their requirements, and when lists of accommodation had been provided they had mostly been drawn up on the additive principle of 'one room for each purpose'. But we have come to realise that, in drawing up a schedule of accommodation for these kinds of building, the principle of the dual or multiple use of space can be applied with the same rewarding results as have been achieved in schools.
5. When building problems are tackled in this way a number of useful yardsticks are soon discovered. For example:
(1) in a training college the present aim is to see that every general teaching room will be used for at least 75 per cent of the time; this allows reasonable flexibility for timetable purposes and for
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changes in the nature of the courses but ensures that rooms are not provided wastefully and left empty for long periods in the day;
(2) experience of the last few years has shown that most students of eighteen to twenty years of age are well served for personal comfort, private study and the entertainment of a few friends, by a study-bedroom of 140 square feet [13m²];
(3) in scheduling rooms for a technical college, where the sizes of teaching groups are not likely to be constant, it has been found useful to take the greatest number of students likely to use a particular room at any one time, and multiply this maximum student capacity figure by the number of square feet per student appropriate to the use of the room. For example, a general classroom with a maximum student capacity of 30 would have a scheduled area of 30 times 20, or 600 square feet [55.7m²]; a drawing office for 30 students would need 30 times 30 square feet - 900 square feet [83.6m²]; and a workshop for 20 students studying engineering with heavy machinery would need 20 times 90, or 1,800 square feet [167m²]. A percentage addition is made to the total of the teaching areas to allow for necessary storage.
6. Once the main areas have been scheduled, it is necessary to add an allowance for circulation, internal partitions and miscellaneous ancillary accommodation such as cloakrooms, lavatories, cleaners' store cupboards, etc. An economic design does not depend only on the schedule of the main rooms: One architect may produce a plan in which the circulation space equals fifteen per cent of the scheduled area and another may require for the same scheduled area twice as much circulation space. In the Ministry's experience an allowance of one-third of the total scheduled areas, that is, one quarter of the whole superficial area within the outer walls, is enough to enable the average architect to produce an economic plan while permitting a margin of space which a good architect, who is sparing in his use of circulation space, can 'win back' to increase the scheduled areas. (Occasionally, however, the allowance must be increased when there are circulation problems as in special schools for the physically handicapped and the blind).
7. It will be noted that the Ministry is concerned with the superficial area of any educational building and not with its cubic content. This is partly because it considers the height of rooms to be relatively unimportant so long as proper standards of comfort, light and ventilation are
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met, but chiefly because the costs of using various forms of construction to provide a given area cannot be properly compared on a cube foot basis. It may cost more to provide a wing of three classrooms if the building has a pitched roof rather than a flat one. The cost per square foot will reveal this fact, but the cost per cubic foot, because of the different number of cubic feet in the two types of building, may obscure it.
8. The total area arrived at by the method of scheduling described above is then multiplied by an appropriate cost per square foot to obtain a limit of nett cost. This limit compares with the nett cost for primary and secondary schools reached by multiplying the nett cost per place by the number of cost places. An allowance is made for the additional costs of roads, paths, fences, site layout and the cost of bringing services up to the building, etc. The nett cost per square foot to be applied to any type of building is decided upon after an examination of what such buildings have cost in the past and what similar buildings are costing now. Sometimes two rates are applied to one building. There is, for instance, one rate for workshop accommodation in a technical college and another for the remainder of the building. There are two rates for residential hostels, depending on the type of construction. One bears a relation to the cost of ordinary domestic housing (which is usually of unframed construction); the other derives mainly from the cost of multi-storeyed buildings such as blocks of flats (which are normally of framed construction). A cost per square foot for an unfamiliar type of building must, of course, be tested against experience, but after the first few projects an economical and fair limit can usually be determined and applied at a given point or for a given period of time.
9. Once the limit of nett cost has been reached on the basis of a cost per square foot and an assumed total superficial area, the architect is free to vary the relation of the two component parts, either to work to a lower cost per square foot if his client prefers, or his design involves, a greater total area, or to work to a higher cost per square foot if he can plan to a smaller total area (provided, of course, that in the latter case he provides at least the minimum areas of individual scheduled rooms).
10. Thus, although different means have been adopted, the same end has been achieved as in primary and secondary schools. First, the total superficial area is determined by careful analytical methods. Secondly, a fair and reasonable cost per square foot is settled for the particular type of building. Thus, thirdly, the total limit of cost is established
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before the architect has to start work. These arrangements act both as a control on the standard and cost of a project (since the Minister's final approval will not be given where the limit is exceeded, except in extraordinary circumstances) and as an incentive (since they challenge the architect to get the most he can out of the sum of resources put at his disposal). One example will illustrate what can be gained. Immediately after the war it was common to find, in an individual hostel project for training college students, that the area per student was about 220 square feet [20.4m²], of which only 110 square feet [10.2m²] were for the study-bedroom itself. Thus 50 per cent of the accommodation was circulation area, washing or toilet accommodation, and storage or service rooms. We now set ourselves a minimum target of providing, out of the same total area of 220 square feet [20.4m²], a study-bedroom of at least 140 square feet [13m²], representing 63 per cent of the total. In practice it is often possible, in the case of some of the rooms, to pool the allowance for two or three students and to provide a common study room and two or three small bed-rooms off it. In this way part of the circulation area is absorbed into the living space and the area per student can be enlarged to about 160 square feet [14.86m²] or about 73 per cent of the same total of 220 square feet [20.4m²]. Where this can be done in a domestic type of construction on two floors, the total area can be reduced to 200 square feet [18.58m²] and the area per student of study-bedroom accommodation still maintained at about 160 square feet [14.86m²]. The amount of personal accommodation can thus be as much as 80 per cent of the whole.
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Appendix II: A note on the Ministry of Education Development Group
1. The Development Group is a part of the Architects and Building Branch of the Ministry of Education. It has collaborated with several local education authorities in the design, building and equipping of a small number of schools. The objects of these projects are three; to try out new forms of design for schools based on changes in the educational requirements and in teaching techniques; to develop, in collaboration with the manufacturers and others, building methods, components and techniques which promise to make a valuable contribution to school building; and to study the application to school building of knowledge resulting from research into buildings and materials. The form which these projects take and the ways in which they are carried out has already been described in paragraphs 74-77 so that it is only necessary here to mention the schools which have been built in this way.
2. At Wokingham, a secondary modern school for 600 boys and girls has been built for the Berkshire Education Authority. The design of this school was used to develop and test some of the ideas tentatively put forward in Building Bulletin No. 2 - New Secondary Schools. The school is in an area in which there is much employment in horticulture and agriculture, and consequently the school has a bias towards these subjects. The construction was based on a light steel frame of welded hot-rolled sections, developed from an earlier system which had already been extensively used for primary schools. Whereas in the latter the size of components had been coordinated on a dimension of 8 feet 3 inches [2.52m], at Wokingham the opportunity was taken of experimenting with a smaller dimension, 3 feet 4 inches [1.02m], so as to achieve more flexible planning for the more complex requirements of secondary schools. The nett cost per place on tender in March, 1951, was £215.3; the limit of nett cost per place at this time was £290.
3. At Coventry, one primary school (Limbrick Wood for mixed infants and juniors) and two comprehensive schools (Woodlands School for boys and Lyng Hall School for girls) have been built in collaboration with the City Architect. In designing the primary school
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the aim was to reduce the total floor area while both maintaining or increasing the amounts of teaching accommodation and enlarging the size of individual teaching space. The nett cost per place on tender in July, 1951, was £137.5, when the limit of nett cost per place was £140. The construction was designed round factory-made wall panels faced with aluminium which could be used, however, only for single-storey buildings.
4. The two comprehensive schools, being very large in size, raised problems of educational social organisation and in both these projects experiments were made in the sub-division of the school into a number of houses which consist of a cross section of the pupils and contain boys or girls of different ages, abilities and outlook. At the Lyng Hall School the aluminium system of construction used at Limbrick Wood was developed for use in multi-storey building. A hot-rolled steel frame was, however, introduced. The construction at the Woodlands School was a development of that used at Wokingham, modified to lower the cost. The cost per place on tender in July, 1952, of the Woodlands School was £234.8 when the limit of nett cost per place was £240. The corresponding figures for Lyng Hall in August, 1953, were £229.4 and £250.
5. In collaboration with the Derbyshire Authority a secondary modern school for 450 boys and girls was designed and built at Belper. This size of mixed school is an awkward one to plan economically and the school at Belper was used for the study of this problem. The construction was based on cold-rolled steel, the frame and other parts being coordinated dimensionally on the basis of 3 feet 4 inches [1.02m] and largely factory-made. Some of the ideas tried out at Wokingham were carried further, but in different form, in this school. The cost per place on tender in March, 1953, was £230.3 with the limit of nett cost per place at £250.
6. At Worthing, a secondary technical school for 600 boys and girls was built for the Worthing Borough Council and the West Sussex Education Authority in consultation with the County Architect and the Borough Engineer. The general aim in the design was, of course, to study the needs of secondary technical education, but particular emphasis was placed upon the relationship of practical spaces to each other and to the rest of the school. The construction was of pre-stressed, pre-cast concrete components made in the factory on the basis of a common dimension of 3 feet 4 inches [1.02m]. The nett cost per place on tender
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in May, 1953, was £267.0 when the appropriate limit of nett cost per place for this school was £276.
7. At Amersham a junior school for 320 children is at present being built in collaboration with the Buckinghamshire Education Authority. The object in the design of the school has been to take account of development in teaching in primary schools over the five years or so since Limbrick Wood was designed, and to examine, in particular, the special needs of junior children (aged 8 to 11 years) as distinct from infant children (aged 5 to 7 years). The building is in a rationalised form of brick and timber construction. The nett cost per place on tender in January, 1956, was £140.5 when the limit of nett cost per place was £154.
8. The range of types of school which has been covered is a wide one. The types of construction used have also varied considerably, though these have, largely, been concerned with the problems found in those parts of the country where normal building methods or available building labour have not been able to meet the demand for schools speedily enough. This explains the bias towards prefabrication, by which is meant in this context the transference to a factory of all the work which can be done off the building site, thus minimising the demand for site labour. This raises many problems, especially if factory production is not to lead to standardised buildings unrelated to the needs of particular schools and particular localities. The systems mentioned have all been based on the factory production of relatively small components which can be assembled to produce a wide variety of building forms.
9. The opportunity has also been taken of exploring different forms of relationship between building owners, their architects and quantity surveyors, and builders. Changes in building technique may well affect the form of contract which is most appropriate. The traditional method of selecting a builder by competitive tender is valid when architects and builders are familiar with the building technique and the builders are keen to get the job; on the other hand, if new techniques are involved and there is more work to be done than the industry can comfortably handle, alternative arrangements, such as the nomination of a contractor, may result in the owner obtaining better value for money and a more satisfactory job. The relationship between the parties and the form of contract have varied on the buildings which have been mentioned from normal competitive tendering by selected builders to the negotiation of a contract with a single nominated contractor.
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Ministry of Education
Building Bulletins
No. 1. New Primary Schools (2nd edition, 1955) 2s. (2s. 3d.)
No. 2. New Secondary Schools. (1950) 2s. 6d. (2s. 9d.)
No. 2a. New Secondary Schools (Supplement). (2nd edition, 1954) 3s. 6d. (3s. 9d.)
No. 4. Cost Study, (1951) 1s. (1s. 2d.); (2nd edition, 1957) 5s. 6d. (5s.11d.)
No. 5. New Colleges of Further Education. (2nd edition, 1955) 3s. 6d. (3s. 9d.)
No. 6. Primary School Plans. (1951) 2s. 6d. (2s. 9d.)
No. 7. Fire and the Design of School. (2nd edition, 1955) 2s. 6d. (2s. 8d.)
No. 8. Development Projects: Wokingham School. (1952) 4s. 6d. (4s. 9d.)
No. 9: Colour in School Buildings. (2nd edition, 1956) 5s. (5s. 2d.)
No. 10. New School Playing Fields. (1955) 3s. 6d. (3s. 9d.)
No. 11. The Design of School Kitchens. (1955) 3s. (3s. 3d.)
No. 12. Site Labour Studies in School Building. (1955) 3s. 6d. (3s. 9d.)
No. 13: Fuel Consumption in Schools. (1955) 2s. (2s. 2d.)
No. 14. Day E.S.N. Schools. (1956) 2s. (2s. 2d.)
No. 15. Training College Hostels. (1957) 1s. (1s. 2d.)
Binder 3s. (3s. 3d.)
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