The estimated valuation for the unit at 31 Canberra Crescent #xx-xx in Provence Residence is based on recent transaction data, with sale prices ranging from S$1,454 to S$1,551 psf and an average of S$1,512 psf. For a unit size of 1,000 to 1,100 sqft, the estimated valuation is between S$1,512,000 and S$1,663,200, with a conservative estimate of S$1,490,000.