Authorize someone for DHA construction matters — official SPA performa on stamp paper
If the owner is abroad or unavailable for construction, DHA issues an SPA so another person can act on the owner's behalf for construction only. SPA must be cancelled before starting a property transfer.
Per DHA Executive Services: SPA in 2 working days for Rs. 50,000 (document submission date excluded).
Source: DHA Lahore Transfer · Transfer Forms