Poor drafting of agreements
Large sums of money can hinge on the interpretation of a very few words, which is why professional drafting of agreements is so important. That point was powerfully made in a High Court case concerning an option to purchase a commercial property.
In Helix 3D Limited v Dunedin Industrial Property Nominee Limited & Anr, the tenant of the property had paid £25,000 for the five-year option. It enabled the tenant to purchase the freehold for a fixed price of £1.5 million at any time during the first two years of the agreement.
In the following three years, the price payable was £1.5 million or the open market value, whichever was the greater.
In the fifth year of the option, shortly before it expired, the tenant purported to exercise it by offering £1.5 million and paying a £90,000 deposit. The landlord denied that the option had been validly exercised on the basis that there had been no agreement or determination of the open market value.
In ruling on the dispute, the Court noted that it was rooted in the poor drafting of the agreement. The landlord’s interpretation of the option was divorced from reality in that it would require the tenant to guess the open market value before seeking to exercise it. A reasonable person would not have expected the option to be modelled on a lottery. In finding that the option had been validly exercised, the Court concluded that the tenant’s interpretation made greater commercial sense.
[edit] Find out more
[edit] Related articles on Designing Buildings Wiki
Featured articles and news
A case study and a warning to would-be developers
Creating four dwellings... after half a century of doing this job, why, oh why, is it so difficult?
Reform of the fire engineering profession
Fire Engineers Advisory Panel: Authoritative Statement, reactions and next steps.
Restoration and renewal of the Palace of Westminster
A complex project of cultural significance from full decant to EMI, opportunities and a potential a way forward.
Apprenticeships and the responsibility we share
Perspectives from the CIOB President as National Apprentice Week comes to a close.
The first line of defence against rain, wind and snow.
Building Safety recap January, 2026
What we missed at the end of last year, and at the start of this...
National Apprenticeship Week 2026, 9-15 Feb
Shining a light on the positive impacts for businesses, their apprentices and the wider economy alike.
Applications and benefits of acoustic flooring
From commercial to retail.
From solid to sprung and ribbed to raised.
Strengthening industry collaboration in Hong Kong
Hong Kong Institute of Construction and The Chartered Institute of Building sign Memorandum of Understanding.
A detailed description from the experts at Cornish Lime.
IHBC planning for growth with corporate plan development
Grow with the Institute by volunteering and CP25 consultation.
Connecting ambition and action for designers and specifiers.
Electrical skills gap deepens as apprenticeship starts fall despite surging demand says ECA.
Built environment bodies deepen joint action on EDI
B.E.Inclusive initiative agree next phase of joint equity, diversity and inclusion (EDI) action plan.
Recognising culture as key to sustainable economic growth
Creative UK Provocation paper: Culture as Growth Infrastructure.





















