How to commission a bespoke stone sculpture

Commissioning a bespoke stone sculpture is a sequence of decisions, not one purchase order. Start with a brief, separate feasibility from design, record approvals, agree how changes are handled, and assign responsibility for the site, structure, lifting and maintenance.

This is a supplier-neutral guide. It does not describe any workshop's own process, quote a price or programme, promise free design or guarantee a likeness. The contract and the project professionals decide those points.

1. Write the brief before requesting a proposal

Record:

• the purpose of the piece and the response it should create;
• the site, viewing distances and surrounding architecture or landscape;
• interior, sheltered or exposed conditions;
• approximate dimensions and any non-negotiable limits;
• reference images, clearly labelled as inspiration or requirements;
• the budget boundary — sculpture only, delivered, or installed;
• desired date and genuinely fixed dates;
• decision-makers and approval route;
• planning, heritage, access or neighbour constraints; and
• expected maintenance and design life.

Local-authority public-art guidance treats the artist's brief as the framework for a commission and includes site context, technical constraints, budget, programme, maintenance, copyright and decision-making.¹² A private garden commission may be simpler, but omitting those subjects still leaves avoidable ambiguity.

Mark each field as fixed, preferred or open. A supplier can then show which choices alter feasibility, appearance or quotation.

2. Use the first review to test feasibility

Ask the prospective supplier to identify:

• what is understood and what needs clarification;
• whether the proposed scale and detail fit the candidate material and available block;
• what site information is missing;
• which structural, planning or installation questions sit outside its scope;
• what design work is required before a firm production quotation; and
• what evidence and samples will be supplied.

RIBA's Plan of Work organises briefing, design, construction and operation into stages with defined outcomes, tasks and information exchanges.³ A sculpture commission is not a building project, but the same discipline is useful: do not freeze production information while the brief is still moving.

Feasibility is not approval to manufacture. Record what the supplier has and has not confirmed.

3. Agree the design stage in writing

Before commissioning drawings, models, renders or a maquette, agree:

• the design deliverables and number of options;
• the fee, payment point and tax treatment;
• how many revision rounds are included;
• the dimensions and level of detail represented by each deliverable;
• whether colours and stone markings are indicative;
• who may approve the design;
• what happens if the project stops; and
• ownership, licence, reproduction, credit and moral-rights arrangements.

Do not assume that paying for a commissioned design transfers copyright. UK Intellectual Property Office guidance says the creator is normally the first copyright owner unless a different arrangement is agreed in writing; a commissioner may otherwise have only an implied, limited licence.⁴ Put the intended uses — fabrication, publication, photography, future copies and alterations — into the agreement and obtain legal advice where needed.

4. Freeze the right information before production

A production approval should identify the exact revision and record:

1. overall and critical dimensions;
2. orientation, pose and principal sightlines;
3. stone identity, source and accepted visual range;
4. finish and approved sample;
5. unit breakdown, joints and interfaces;
6. base footprint, mass and centre-of-gravity information where available;
7. fixing-design responsibility;
8. inscriptions or applied elements;
9. inspection and progress-reporting points; and
10. packing, delivery and installation boundaries.

Approving an image does not approve an unshown fixing, tolerance or material substitution. List the documents that together form the approval record and state which one governs if they conflict.

5. Give changes a controlled route

After approval, every proposed change should record:

• the reason;
• affected drawing, model, sample or material;
• effect on appearance, dimensions, price and programme;
• any new professional review required;
• who requested it;
• who may approve it; and
• the approval date.

No change should rely on a telephone conversation alone. Keep the original approval and the accepted change together so the final inspection has a clear baseline.

6. Resolve permissions and professional duties

Permission depends on the site and jurisdiction. In England, works affecting the character of a listed building require listed building consent, separately from any planning permission; designated parks and gardens are also considered through the planning system.⁵ Ask the relevant local planning authority or heritage adviser about the actual proposal. Different rules and bodies apply in Scotland, Wales and Northern Ireland.

The sculpture supplier should not silently inherit responsibility for:

• the adequacy of an existing wall, pier, slab or foundation;
• structural and fixing design;
• ground conditions;
• temporary works;
• electrical or water services;
• the lifting plan; or
• planning and listed-building consent.

Name the architect, structural engineer, installer, principal contractor or other competent party responsible for each item.

7. Plan delivery and installation before final size approval

Confirm the finished mass, number of units, crate dimensions, lifting points or restrictions, delivery vehicle, route, gate widths, turning space, bearing capacity and unloading position.

Where lifting equipment is used at work, HSE says the operation must be properly planned by a competent person, appropriately supervised and carried out safely.⁶ The supplier's mass and interface information feeds that plan; it does not replace it.

Agree who carries transit risk, who receives the crate, who provides lifting equipment, who installs and aligns the work, and who records condition at handover. Those terms belong in the contract and delivery documents.

8. Close with a handover pack

The final pack should contain, as applicable:

• approved and as-built drawings;
• stone and finish identification;
• final mass and unit schedule;
• fixing and installation records supplied by the responsible parties;
• photographs and condition record at dispatch and handover;
• care, inspection and maintenance instructions;
• known limitations and repair contacts;
• copyright, photography and credit permissions; and
• warranties or certificates that are actually part of the contract.

Do not convert the supplier's care note into "maintenance-free". Assign an owner and review date for inspection.

Commissioning checklist

Before signing, can you answer all of these?

• What is fixed, preferred and open in the brief?
• What does the design fee buy?
• Who owns and may use the design?
• Which revision and sample approve production?
• Who approves changes?
• Who designs the foundation and fixings?
• Who confirms permissions?
• Who plans and supervises the lift?
• What exactly is included in delivery and installation?
• What records and care information arrive at handover?

If an answer is missing, keep that part of the commission provisional.

Sources

All sources accessed 20 July 2026.