The association has said flat owners are not ready to pay the fee of Rs 1,000 per sq ft for rebuilding the towers as offered by the developer. For reconstruction of flats, the flat owners who have not accepted buyback option will have to pay Rs 1,000 per sq ft in four instalments — 40% at the start of construction, 30% on completion of basic structure, 20% while applying for occupation certificates (OCs) and remaining 10% before possession.