Might the principles of ransom strip valuation be relevant?
http://www.rics.org/uk/knowledge/glossary/ransom-strips/
The land would be worth 1/3 of the uplift in value of your property. It's not an exact parallel though, I grant you.
Ooh, that's useful. thanks!
@bq started
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Might the principles of ransom strip valuation be relevant?
http://www.rics.org/uk/knowledge/glossary/ransom-strips/
The land would be worth 1/3 of the uplift in value of your property. It's not an exact parallel though, I grant you.