This document provides information on collecting income data for viability testing, including:
- Residential prices can be found from sources like Land Registry, developers, and estate agents. Non-residential income comes from sources like EGI Property Link and the Valuation Office Agency.
- Income assumptions need prices by unit size, housing type (house vs. flat), commercial uses, affordable rents, new vs existing, grants/subsidies, and location variations.
- Gross internal area figures come from BCIS costs data, developers, or estimates based on calculations.
- Examples are given of developer schemes with unit details and prices to help inform assumptions.