Pupil-yield ratios
DfE-derived ratios depend on dwelling mix. Estimator default: 0.21 primary, 0.14 secondary per dwelling. Houses with 3+ bedrooms run higher (0.32 / 0.21); single-bed flats run lower (0.05 / 0.03). Adopted LEA contribution methodologies publish their own per-mix tables; the SPD reference is in the per-LPA pages.
BCIS rebase
The per-pupil capital rate is rebased to BCIS All-in TPI each quarter[BCIS All-in TPI]. Birmingham's 2024 SPD per-pupil rate (primary) was approximately £19,400; rebased to 2026 Q2 it sits in the £21,500 to £22,000 range.
Surplus-place credit
Where the LEA evidences surplus capacity in the catchment school, the contribution is reduced to zero for the surplus places and applied at the standard rate beyond. Planning committee reports increasingly publish the netted figure so the development manager can verify the calculation independently.
Capital-build trigger
Larger schemes (typically 400+ dwellings or where a new form-of-entry is unavoidable) trigger a capital-build contribution: the LPA negotiates either land or capital toward a new school. The per-pupil-rate route does not apply at this scale.