Building owner's manual - O and M manual
The building owner's manual, or operation and maintenance manual (O&M manual), contains the information required for the operation, maintenance, decommissioning and demolition of a building.
The building owner's manual is prepared by the contractor or the sub-contractor with additional information from the designers (in particular, the services engineer) and suppliers. It is a requirement that is generally defined in the preliminaries section of the tender documentation where its contents will be described, although there may be additional requirements regarding mechanical and electrical services in the mechanical and electrical specification.
A draft version of the document should be provided for the client as part of the handover procedure prior to certifying practical completion. The final document is not usually available in full form until several months after practical completion, as commissioning information often needs to include summer and winter readings taken in the fully occupied building. The preliminaries may require several copies of the building owner's manual and might require an electronic version.
The building owner's manual might include:
- A description of the main design principles.
- Details of the building's construction (such as finishes, cladding, doors and windows, roof construction, and so on).
- As-built drawings and specifications.
- Instructions for its operation and maintenance (including health and safety information and manufacturers' instructions for efficient and proper operation).
- An asset register of plant and equipment.
- Commissioning and testing results.
- Guarantees, warranties and certificates.
- Particular requirements for demolition, decommissioning and disposal.
Much of this information will already exist in one form or another, so preparing the building owner's manual might simply be a matter of compiling and assembling its components.
Over the life of the buildings, the building owner's manual may be developed to reflect changes that take place to the fabric of the building or its systems, along with details of maintenance that has taken place .
The building owner's manual is different from the health and safety file which only needs to include information important to health and safety and does not need to include information about the construction process, contractual information or information about the normal operation of the completed structure.
The building owner's manual may also include a non-technical 'building user's guide' with information for users about environmental controls, access, security and safety systems, etc.
NB - Building owner's manuals might now be referred to as building manuals. For more information see: Building manual.
[edit] Related articles on Designing Buildings
- BSRIA updates Handover and O&M manuals.
- Building log book.
- Building manual.
- Building user's guide.
- Decommissioning.
- Deferred maintenance.
- End-user.
- Handover to client.
- Health and safety file.
- Maintenance.
- Operation, maintenance and training (OMT).
- Practical completion.
- Preliminaries.
- Soft Landings for owners.
- Technical guide.
- Tender documentation.
- Users.
- Working with maintenance contractors.
[edit] External references
- BSRIA Handover, O&M Manuals, and Project Feedback. A toolkit for designers and contractors (BG 1/2007).
Featured articles and news
What they are, how they work and why they are popular in many countries.
Plastic, recycling and its symbol
Student competition winning, M.C.Esher inspired Möbius strip design symbolising continuity within a finite entity.
Do you take the lead in a circular construction economy?
Help us develop and expand this wiki as a resource for academia and industry alike.
Warm Homes Plan Workforce Taskforce
Risks of undermining UK’s energy transition due to lack of electrotechnical industry representation, says ECA.
Cost Optimal Domestic Electrification CODE
Modelling retrofits only on costs that directly impact the consumer: upfront cost of equipment, energy costs and maintenance costs.
The Warm Homes Plan details released
What's new and what is not, with industry reactions.
Could AI and VR cause an increase the value of heritage?
The Orange book: 2026 Amendment 4 to BS 7671:2018
ECA welcomes IET and BSI content sign off.
How neural technologies could transform the design future
Enhancing legacy parametric engines, offering novel ways to explore solutions and generate geometry.
Key AI related terms to be aware of
With explanations from the UK government and other bodies.
From QS to further education teacher
Applying real world skills with the next generation.
A guide on how children can use LEGO to mirror real engineering processes.
Data infrastructure for next-generation materials science
Research Data Express to automate data processing and create AI-ready datasets for materials research.
Wired for the Future with ECA; powering skills and progress
ECA South Wales Business Day 2025, a day to remember.
AI for the conservation professional
A level of sophistication previously reserved for science fiction.
Biomass harvested in cycles of less than ten years.
An interview with the new CIAT President
Usman Yaqub BSc (Hons) PCIAT MFPWS.
Cost benefit model report of building safety regime in Wales
Proposed policy option costs for design and construction stage of the new building safety regime in Wales.
Do you receive our free biweekly newsletter?
If not you can sign up to receive it in your mailbox here.


























Comments