Why the memo weighs so much.
In a public construction tender, the bid rules document defines the award criteria. Typical weightings observed in 2024-2026:
- A."Classic" markets (functional buildings): price 50% · technical 40% · schedule 10%.
- B."Sensitive" markets (occupied sites, schools, hospitals): price 40% · technical 50% · schedule 10%.
- C.Highly technical markets (heritage, deep restructuring): price 30-35% · technical 55-65% · schedule 5-10%.
- D.Private markets (negotiation possible): official weighting matters less; the memo opens the negotiation phase.
In all cases, the technical memo is worth at least 30% and up to 65% of the score. An SME spending 80% of its time on price and 20% on the memo is optimising the wrong variable.
"I won a school tender without being the cheapest. I had the 3rd price out of 8, but the most precise memo. The client called to tell me: 'You are the only ones who understood the school phasing constraints.'" — Construction CEO, €1.2M public market, 2025.
The standard 8-chapter structure.
After analysing 80 winning memos 2022-2026 (public markets, buildings €500K-15M), here is the skeleton that emerges most often. Adaptable to each tender, but order and weights stay constant.
Standard table of contents
- 01.Company presentation
- 02.Project understanding and stakes
- 03.Site management & org chart
- 04.Execution methodology
- 05.Schedule and deadline management
- 06.Quality, safety, environment approach
- 07.Comparable project references
- 08.Additional commitments (after-sales, ESG, innovation)
CHAPTER 01 · 2-3 PAGES
Company presentation
Quick identity: corporate name, headcount, recent revenue, history, certifications (Qualibat, Qualifelec, ISO 9001/14001/45001). One "key figures" page + one ADN text page. Avoid the corporate brochure block, the client has no time.
Weight in the score: 5-10%
CHAPTER 02 · 3-5 PAGES · CRITICAL
Project understanding
The decisive chapter. Reflect the client's stakes as set out in the technical specifications (not generalities about construction). Identify the 3-5 major risks of the project (access, occupant constraints, schedule, weather) and indicate how you address them. If the tender mentions an occupied school, talk about summer phasing. If it's SS3 asbestos, talk about the procedure.
Weight in the score: 15-25%
CHAPTER 03 · 2-3 PAGES
Management & org chart
Name + photo + summary CV of the site manager assigned to the project, the foreman, the key tradespeople. Attach training certificates (CACES, scaffolding, SS3 if asbestos). Tip: specify that the site manager is dedicated to this project at X% of their time, and will attend weekly meetings. That reassures more than a generic "we will mobilise our best teams".
Weight in the score: 10-15%
CHAPTER 04 · 6-10 PAGES · CRITICAL
Execution methodology
The most copy-pasted and most poorly graded chapter. For each major work item (earthworks, structural, finishing, equipment), describe concretely: human and material resources, prospective suppliers, specific procedures, controls. Include 1 diagram + 1 reference site photo per work item. If the tender requires a certification (NF, CE+), mention it explicitly.
Weight in the score: 20-30%
CHAPTER 05 · 3-5 PAGES
Schedule & deadline management
Gantt chart, critical milestones, slack. Specify phases (preparation, demolition, structural, finishing, snagging), interlocks, and durations. Common mistake: copy the tender schedule verbatim without challenging it. Bonus if you propose a realistic optimisation (controlled overlap, extra crew at peak).
Weight in the score: 10-15%
CHAPTER 06 · 3-4 PAGES
Quality, Safety, Environment approach
Quality Assurance Plan, Particular Health & Safety Plan, waste management plan, possibly construction quality plan. Mandatory on nearly all public markets. Attach the template, not the final plan (which you'll write upon award). Clients want to see a real method, not a generic document.
Weight in the score: 10-15%
CHAPTER 07 · 4-6 PAGES
Comparable references
3 to 5 similar projects delivered in the last 5 years. Similarity criteria: use type (school, hospital, office), volume (m²/€), constraints (occupied, phased, technical). One sheet per reference: photos, client, amount, duration, specifics. Attach the certificate of completion or handover record if possible.
Weight in the score: 10-15%
CHAPTER 08 · 2-3 PAGES
Additional commitments
Snagging warranty, after-sales for 2 years, ESG commitments (work integration, local sourcing, biosourced materials). More and more clients score these commitments. Bonus if you commit measurable inclusion hours (e.g.: 5% of worked hours by people in inclusion programs).
Weight in the score: 5-10%
AI method to speed up drafting.
AI in 2026 doesn't write a memo from A to Z. It performs 5 tasks that consume 70% of the time:
- 01.Extraction of award criteria from the bid rules: weightings, sub-criteria, specific points the memo MUST cover.
- 02.Skeleton generation (table of contents + sub-headings) aligned on the specific tender criteria.
- 03.Pre-drafting of chapter 02 (project understanding) leveraging the stakes extracted from the technical specifications.
- 04.References recommendation to highlight, by cross-referencing project specifics with your reference base.
- 05.Final review with detection of missing points, typos, and inconsistencies with the tender file.
The writer then takes the skeleton, adjusts, adds the commercial angle, validates technical figures. The memo goes from 4-6 hours of drafting to 1.5-2.5 hours, with on average higher quality (memo scores +12% observed across 6 SMEs tracked in 2025-2026).
"Before AI, I produced 1 polished memo per month. Now I do 4. And the win rate has doubled, because I have time to take care of chapters 2 and 4." — Bid manager, 50-person construction firm, 2026.
Frequently asked questions.
What is the ideal length of a construction technical memo?
For a standard construction tender (project €500K-3M), a technical memo runs between 25 and 50 pages. Beyond that, the client stops reading in detail. Below that, you lack space to address the 8 key chapters. Density should favour illustrations (diagrams, reference photos) rather than text walls.
How much does the technical memo weigh in a construction tender score?
Depending on the market, the technical memo weighs between 30 and 60% of the total score. On a market where the technical criterion is worth 50% and price 50%, it's the memo that decides. Many firms spend 80% of their time on price and 20% on the memo: the opposite of what they should do.
Can you reuse a previous tender's technical memo?
Yes, for the skeleton (organisation, management, references), not for project-specific content. A copy-pasted memo is spotted immediately by an experienced client and penalised. Best practice: keep a parent matrix and personalise chapters 4 (methodology) and 5 (schedule) on each tender.
Can AI draft a construction technical memo?
AI can produce a pre-filled skeleton in 30 minutes based on the award criteria extracted from the bid rules and the firm's parent matrix. Final drafting requires human validation for technical truthfulness, project references and commercial angle. Gain: 60-70% of the time, equal or better quality.
Does a technical memo need a handwritten signature?
No. The technical memo doesn't have to be signed (the bid forms are). A cover page with the firm's logo and identity is enough. For dematerialised markets, the memo is attached as an unsigned PDF.
Which mistakes to absolutely avoid?
The 3 fatal mistakes: (1) missing a mandatory point of the bid rules = score 0 on that criterion; (2) announcing an unachievable schedule = loss of credibility; (3) attaching off-topic references (housing vs school). Always check coherence with the tender file before submission.