Building Manuals for Construction Handover

What is a building manual?

A building manual is the complete set of information needed to operate, maintain and manage a building safely and efficiently once construction is finished. It is handed over at completion and should stay with the building for its whole life, passing to each new owner or occupier.

The terms building manual and O&M manual (operation and maintenance manual) are often used interchangeably. In practice, a building manual is usually the broader package: it contains the O&M information for every system, and often brings together or cross-references the health and safety file, fire safety information and a building user guide as well.

A good building manual answers the questions a facilities team will ask on day one: what is installed, where it is, how it works, how and when it must be maintained, who supplied it, and what warranties and certificates apply.

Looking specifically for operation and maintenance information? See our dedicated guide to O&M manuals.

What should a building manual include?

The exact content depends on the building and the contract, but a complete building manual typically includes:

• A description of the building, its construction and its intended use
• Project team, contractor, subcontractor and supplier contact details
• System-by-system descriptions of mechanical, electrical and public health services
• Operating instructions for plant, controls and building management systems
• Maintenance requirements and planned preventive maintenance (PPM) schedules
• Manufacturer literature and product data for the items actually installed
• Test, commissioning and statutory certificates (electrical, fire alarm, emergency lighting, gas, water hygiene and so on)
• Warranties and guarantees, with start dates and conditions
• As-built drawings, schematics and a drawing register
• An asset or equipment register
• Fire safety information for the responsible person
• Health and safety information, or a cross-reference to the health and safety file
• A building user guide for occupiers

Industry guidance such as BS 8587, the RIBA Plan of Work and BSRIA’s handover guides set out best practice for structuring this information so it can be found quickly. Every manual we produce is organised around a clear index and consistent section numbering, so a maintenance engineer can find what they need in seconds.

Why building manuals matter: the legal requirements

A building manual is not just good practice. Several pieces of UK legislation require information to be handed over at completion, and the building manual is where most of it lives.

• CDM Regulations 2015: the principal designer (or the principal contractor, if the designer’s appointment ends first) must prepare a health and safety file and hand it to the client at the end of the project. The client must keep it available and pass it on if the building is sold.
• Building Regulations – Regulation 38: for most non-domestic and multi-occupied buildings, fire safety information must be given to the responsible person no later than completion or occupation.
• Building Regulations – Part L: the owner must be given enough information about the building, its fixed building services and their maintenance requirements to operate them efficiently.
• Regulatory Reform (Fire Safety) Order 2005: the responsible person must manage fire safety on an ongoing basis, which depends on accurate information about fire safety systems and their maintenance.
• Building Safety Act 2022: for higher-risk buildings, the information handed over at completion forms part of the golden thread that the accountable person must keep accurate and up to date.

Many building contracts also make a complete O&M manual a condition of practical completion, so late or incomplete information can delay handover and the release of retention. You can find a summary of the key legislation on our resources page.

Building manual vs O&M manual vs health and safety file

These three documents overlap, which is why they are often confused:

• O&M manual: how to operate and maintain each system in the building. Focused on plant, services and equipment.
• Health and safety file: required under CDM 2015. Records the information needed to manage health and safety risks during future construction, maintenance, cleaning, refurbishment or demolition work, such as residual hazards, structural principles and the location of services.
• Building manual: the overarching handover package for the whole building. It normally includes the O&M information and either includes or links to the health and safety file, fire safety information and building user guide.

On most projects it makes sense to produce these together, because they draw on the same information from the same contractors. We regularly compile O&M manuals and CDM health and safety files side by side, so nothing is collected twice and nothing falls between the gaps.

Who is responsible for the building manual?

Responsibility is usually set out in the contract and the employer’s requirements:

• The client or developer decides what information they need at handover and in what format.
• The main contractor is normally responsible for collecting O&M information from subcontractors and suppliers and issuing the manual before practical completion.
• The principal designer is responsible for preparing the CDM health and safety file.
• Subcontractors and suppliers provide the product data, certificates, warranties and drawings for their packages.

Because gathering this information takes time and persistence, many contractors and developers appoint a specialist to produce the building manual on their behalf. That is exactly what we do: we liaise with every contractor and supplier directly, check what they send, and chase what is missing, so your site and project teams can focus on building.

When should a building manual be produced?

The best building manuals are planned from the start of the project, not assembled in the last few weeks.

• At mobilisation: agree the manual’s structure, format and information requirements, and tell subcontractors what they will need to provide.
• During construction: collect product data and drawings as packages are procured and installed.
• Before practical completion: issue a draft for review, including test and commissioning results.
• At practical completion: issue the final manual with all certificates, warranties and as-built drawings.
• After handover: update the manual as systems are changed, replaced or extended.

Starting early means fewer gaps and no last-minute scramble. That said, we often support projects that engage us late, including at or after practical completion. See how our process works.

How long does it take and what affects the cost?

Most manuals are completed within 3–4 weeks of receiving the bulk of the information from the project team. The main factors that affect time and cost are:

• The size and type of building
• The number and complexity of building services systems
• The number of subcontractors and suppliers involved
• How much information is already available, and how complete it is
• The format required: PDF, printed copies or online portal access
• Whether a health and safety file or other handover documents are needed alongside

Every project is different, so we price each building manual individually. Get in touch with a few details and we’ll give you a clear quotation.

Common building manual problems (and how to avoid them)

The same issues come up on project after project:

• Late information: subcontractors leave O&M submissions until the end of their package.
• Generic literature: product brochures that don’t match the model actually installed.
• Missing certificates: test and commissioning results that were never issued or can’t be found.
• No as-built drawings: design-stage drawings issued instead of what was actually built.
• Inconsistent formats: dozens of differently structured submissions bound together with no index.

Avoiding them comes down to setting clear requirements early, tracking every submission against a checklist, and checking content rather than just collecting it. Our free O&M manual content checklist is a good starting point.

Digital building manuals

More clients now want their building manual delivered digitally rather than as a stack of binders. A digital building manual can be searched, opened on any device, and updated far more easily than a printed copy.

We host every manual on our secure client portal with a full revision history, so when information changes the manual is amended and reissued rather than left to go out of date. Find out more about our digital handover services.

Why choose Go Building Manuals?

We are a specialist building manual company working with developers, contractors and facilities teams across the UK. Our manuals are:

• Written in plain English and structured for quick reference
• Checked against current legislation and industry guidance before issue
• Tailored to your building, not filled in from a generic template
• Branded by our graphic design team to your chosen colour theme and design
• Delivered in the format you need, from bookmarked PDF to digital handover data

See examples of our work on the projects page, or request a quote for your building manual today.