Empty nest in Gurugram: Payment plan dilemma

Construction-linked payment plan Gurugram mein kitna risky hai? Kids ab chale gaye, Old Gurgaon mein Palm Floors type 2BHK ya 3BHK dekh raha hoon. Mera existing home bech ke funds aayenge, toh down payment mein kya spot discount milta hai? Brokers bolte hain CLP sahi hai, but cash flow manage karna hai. Koi experience share karega?