Finding additional space in a school isn't always straightforward.
Growing pupil numbers, changing educational needs and the demand for specialist teaching facilities can leave schools needing more accommodation than their existing buildings can provide.
But adding a classroom involves more than finding somewhere to put it. There are budgets to consider, approvals to obtain, safeguarding arrangements to maintain and a school day that needs to continue with as little disruption as possible.
For schools and academy trusts across Kent and the South East, modular construction can offer a practical alternative to traditional building methods.
Here's what to consider before deciding whether a modular classroom is right for your school.
Why schools consider modular classrooms
Schools need additional accommodation for different reasons.
Some are responding to increased pupil numbers, while others need specialist spaces for small-group teaching, SEN support, intervention sessions or additional staff facilities.
A school may also require temporary accommodation while existing buildings are refurbished, or permanent facilities as part of a longer-term expansion.
The intended use should guide the design from the beginning.
A general classroom will have different requirements from a specialist teaching room or a space designed for pupils with additional needs.
Before deciding on a building size or layout, consider:
- How many pupils and staff will use the space?
- What activities will take place inside?
- Are specialist facilities or equipment required?
- What accessibility requirements need to be accommodated?
- How will the new building connect to existing school facilities?
- Will the accommodation be needed temporarily or permanently?
Answering these questions early helps establish a more realistic brief.
MITCORP Modular supports projects across a range of sectors, including education buildings and teaching accommodation.
What is a modular classroom?
A modular classroom is a building constructed using elements manufactured away from the final site, then transported and installed on prepared foundations.
Depending on the construction system, much of the structural work can be completed off-site before the building arrives at the school.
This doesn't eliminate the need for foundations, drainage, utilities, planning considerations or other site work. It changes how parts of the construction process are organised.
Modular classrooms can be designed for permanent use, with appropriate insulation, heating, ventilation, lighting, accessibility and internal finishes.
They are not necessarily the temporary cabins that many people associate with prefabricated buildings.
Choosing the right construction system
MITCORP works with several construction methods, including:
- Steel frame: Suitable for consideration across a range of educational and commercial building designs.
- Timber frame: An alternative structural approach that may suit certain building specifications.
- Structural Insulated Panels (SIPs): Engineered panels incorporating structural and insulation elements.
The most suitable system depends on the building's intended use, required performance, site conditions, budget and design.
Rather than selecting a method first, it's usually better to establish what the school needs and assess the available options against that brief.
You can learn more in our guide to what modular construction involves.
Can modular construction reduce disruption to the school day?
One of the main reasons schools consider modular construction is the potential to reduce the amount of intensive building work taking place on school grounds.
With suitable projects, off-site manufacture can progress while foundations and other site preparation are being carried out.
This can help shorten the period during which construction activity affects the school.
However, the level of disruption depends on the project.
Delivery vehicles, lifting equipment, foundation works, service connections and installation activities still need to be managed carefully.
For a school that remains open during construction, the project team should consider:
- Safe separation between pupils and construction activities.
- Delivery routes and vehicle movements.
- Safeguarding arrangements.
- Noise and disruption during teaching hours.
- Access for staff, pupils and visitors.
- Emergency access and evacuation arrangements.
- Opportunities to schedule disruptive work outside normal school hours.
Installation during term time may be possible, but it should never be assumed without assessing the site and agreeing suitable arrangements.
A well-planned programme considers how the school operates, not simply how quickly the building can be installed.
What shapes the programme
There is no standard timetable for a modular classroom project.
The overall programme is driven by how quickly the design is agreed, which approvals apply, what the ground conditions turn out to be, how accessible the site is and how the new building connects to existing services. Manufacture can often run alongside site preparation, but it cannot run ahead of an unresolved planning position or an unapproved design.
That is why the useful question is not how fast a building can be installed, but when the accommodation needs to be in use and how much has to happen before then. A realistic programme works backwards from the date the school needs the space, not forwards from a delivery date.
Planning permission and Building Regulations
A modular classroom does not automatically avoid planning permission because it is manufactured off site.
Whether permission is required depends on the proposed development, its location and the circumstances of the school site.
Building Regulations are a separate consideration.
Schools should also expect the design to be tested against Department for Education guidance where it applies. Building Bulletin 101 covers ventilation, thermal comfort and indoor air quality, and Building Bulletin 93 covers acoustics. Both are published by the Department for Education and can be checked directly rather than taken on trust.
Which of these apply, and how, depends on the proposed building and its use. The design team and the relevant authority are the people who confirm the position for your scheme. A contractor can coordinate the information and the submissions, but cannot decide the outcome.
Approvals are easier to manage when they are started early rather than left until manufacture is underway.
MITCORP's services include design coordination and support with relevant approvals within the agreed project scope.
Foundations and site preparation
Even when a classroom is manufactured off site, the school grounds must be properly prepared before installation.
The work required will depend on the proposed building and site conditions.
This may include:
- Site surveys and ground investigations.
- Foundation design and installation.
- Drainage and utility routes.
- Access arrangements for delivery vehicles.
- Preparation of the installation area.
- Connections to electricity, water, drainage and data services.
Could screw-pile foundations be suitable?
Screw piles may be an option for some modular classroom projects.
Where the ground conditions and structural design are suitable, they can reduce excavation and concrete requirements compared with certain traditional foundation methods.
They are not appropriate for every site.
The foundation solution should be determined by the building's structural requirements, ground conditions and relevant engineering assessments.
It is also important to establish responsibility for surveys, foundation design and installation before agreeing the project scope.
How much do modular classrooms cost?
There is no single price that applies to every modular classroom.
Costs vary depending on the building size, construction method, internal specification, site conditions and work required to make the accommodation ready for use.
When comparing quotations, schools should consider the whole project rather than just the price of the manufactured building.
Design fees, surveys, foundations, drainage and utility connections, transport and lifting, heating and electrical work, internal finishes and external reinstatement all sit alongside the building itself. A quotation that looks cheaper may simply leave some of that work to someone else.
Modular construction is not automatically less expensive than traditional construction.
Its potential value may come from a combination of factors, including programme coordination, off-site manufacture and reduced disruption.
Our Why Modular page explores the considerations in more detail.
When might traditional construction be more suitable?
Modular construction is worth considering for many school accommodation projects, but it is not always the right solution.
Traditional construction may be more appropriate where:
- The new accommodation needs extensive structural integration with an existing building.
- Site access makes transporting or installing modular elements impractical.
- The design involves unusual structural or architectural requirements.
- Planning or site constraints make a modular approach less suitable.
- The wider project would be better delivered through conventional construction methods.
The best approach should be determined by the school's needs and site conditions rather than a preference for one construction method.
An early feasibility assessment can help identify the available options and their practical implications.
What should schools prepare before requesting a quotation?
You don't need a finished design before starting a conversation with a modular building contractor.
However, having some basic information ready can help establish what is possible.
Useful things to have ready include the intended use and how many pupils and staff will use the space, an approximate floor area or number of rooms, a possible location on site, known access restrictions, your target date and any term-time constraints, a working budget range, and any existing plans, surveys or planning history.
You do not need every answer to start a conversation. A short brief covering those points is enough for a sensible first discussion.
Planning additional classroom space in Kent?
Whether your school needs another teaching room, specialist SEN accommodation or a larger expansion, the right starting point is understanding the space you need and how it will work on your site.
Based in Ashford, MITCORP Modular supports schools and academy trusts across Kent and the South East with practical advice on modular building solutions.
From initial feasibility and design coordination through to manufacture, installation and handover, we can help you explore the available options and understand the next steps.
Considering additional teaching accommodation?