Design Stage Sign-Off: What an Owner Approves and When

What you should actually be asked to approve at each design stage, what evidence must accompany it, and why a late sign-off costs more than a slow one.

Design stages exist so that decisions are taken in the right order, cheaply, before they become expensive to reverse. For an owner abroad, each stage is a gate you either close properly or leave half open. This roadmap sets out what should be put in front of you at each gate, what should come with it, and what your approval actually commits you to.

Before stage one

Before the first gate, agree what approval means. Signing a drawing is not an opinion about whether you like it, it is a statement that the project may now proceed on that basis and that changing it afterwards will cost time and money. Owners who treat sign-off as a courtesy end up making design decisions during construction, which is the most expensive place to make them.

• A written schedule of design stages with the deliverable and the decision at each one.
• Agreement that cost is reported at every stage, not only at the end.
• A stated response time for your approvals, and what happens if you miss it.
• A named person who may approve minor items on your behalf, with a value limit.
• A version control convention so that everyone knows which drawing is current.

Stage 1: Brief and feasibility sign-off

You approve the commercial basis: the product, the target areas, the cost ceiling and the programme. This is the gate where the project is defined, and it is the cheapest place to change your mind about anything. What is approved here becomes the test every later design decision is measured against.

• Deliverable: A signed brief and appraisal with target areas, cost ceiling and programme.
• Owner: The owner, advised by the development manager.
• Approval gate: The cost ceiling and the target net area are stated as numbers, not ranges.

Stage 2: Concept design sign-off

You approve the arrangement: the footprint within the setbacks, the number of floors, the unit mix, the net and gross areas, the parking strategy and the general character. Ask for two options where the plot allows it, and ask for the net to gross ratio of each. Approval here fixes the shape of the project.

• Deliverable: A concept package with plans, a unit schedule, net and gross areas and a first cost plan.
• Owner: The design team, presented to the owner.
• Approval gate: Areas and the first elemental cost plan are both inside the brief.

Stage 3: Developed design sign-off

You approve the substance: structural approach, services strategy, facade build-up, specification level for each area and the layouts of typical units. This is the last gate at which a change is merely inconvenient. The cost plan should now be elemental and closer to a real price, with the movement from concept explained.

• Deliverable: A developed design set with an outline specification and a second cost plan with variance explained.
• Owner: The design team, with the cost consultant reporting alongside.
• Approval gate: Any movement from the concept cost plan is explained line by line and accepted in writing.

Stage 4: Approvals submission sign-off

You approve the version being submitted for the building permit and any other statutory approval the scheme requires. Approval here is narrower: you are confirming that what is submitted matches what you agreed. Requirements are set by the relevant authorities and should be confirmed with them by your engineering office before submission.

• Deliverable: The submission set, with a schedule of what is being applied for and to whom.
• Owner: The engineering office, notified to the owner.
• Approval gate: The submitted design matches the developed design you signed, with differences listed.

Stage 5: Specification and selections sign-off

You approve the things a buyer or tenant will actually touch: finishes, sanitaryware, kitchens, doors, ironmongery, external materials. Where possible, decide against samples or a mock-up rather than images. This is the gate that determines perceived quality and it is also where late owner changes cluster most heavily.

• Deliverable: A signed schedule of finishes and equipment, with samples or a mock-up recorded.
• Owner: The design team, decided by the owner.
• Approval gate: Every line in the finishes schedule has a decision, not a placeholder.

Stage 6: Tender documentation sign-off

You approve the set that goes out for pricing: drawings, specification, bill of quantities or schedule of works, and the preliminaries describing site constraints and your requirements. Anything vague here becomes a variation later, so this gate is about completeness rather than aesthetics.

• Deliverable: A complete tender package with a document register and no unresolved provisional items beyond those you accepted.
• Owner: The design team and the cost consultant.
• Approval gate: The number of provisional sums and open items is one you consciously accepted.

Stage 7: Construction information sign-off

You approve, or more accurately acknowledge, the detailed information issued for construction, including any design the contractor is responsible for. Your role here is mostly to confirm that nothing has changed commercially and that the coordinated set is complete before work proceeds on each element.

• Deliverable: A coordinated construction issue with a clash review recorded.
• Owner: The design team, with the contractor where design is shared.
• Approval gate: No element begins on site without a coordinated, current drawing set.

Handovers between stages

Each gate has to hand the next one a complete package and a cost position. The commonest failure is a stage approved on drawings alone, with the cost report following weeks later, by which time the next stage has begun. Insist that design and cost arrive together at every gate, and that the variance from the previous cost plan is explained rather than simply presented as a new total.

How you know it is finished

The design process is properly closed when you hold a signed record at every gate, a cost plan at each stage with the movements explained, and a tender package whose open items you chose deliberately. If you cannot point to what you approved and when, then during construction every disagreement about scope becomes a matter of recollection, and recollection favours whoever writes the better email.

Domira designs, builds and manages projects across Saudi Arabia for owners who are based abroad: land appraisal, feasibility, design, construction, handover and asset management under one accountable contract. Send us the plot or the brief and Domira will put the numbers in front of you before you commit.