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The Affordable Housing supplementary planning document (SPD) adopted on 3rd June 24, taking effect from 1st July 24 sets out the process and mechanisms for providing affordable housing in Fareham. It provides information and guidance on the implementation of Fareham Borough Local Plan 2037 policies HP5: Provision of Affordable Housing, and HP6: Exception Sites.
The SPD, Adoption Statement 
(116 KB) and Post Consultation Statement can be viewed in PDF or hard copy at the Civic Offices and libraries within the Borough as seen in the table below.
| Location | Opening Times |
|
Location Opening Times |
Monday and Tuesday: 9.30am to 4.30pm |
| Portchester Library West Street Portchester PO16 9TX |
Monday: 9:30am to 5pm Tuesday: Closed Wednesday: 9.30am to 1.30pm Thursday: 9.30am to 5pm Friday: Closed Saturday: 10am to 12 midday Sunday: Closed |
| Lockswood Library Lockswood Centre Locks Heath District Centre SO31 6DX |
Monday: Closed Tuesday, Wednesday and Thursday: 9.30am to 5pm Friday: Closed Saturday: 10am to 12 midday Sunday: Closed |
| Stubbington Library Stubbington Lane Stubbington PO14 2PP |
Monday and Tuesday: 9.30am to 5pm Wednesday and Thursday: Closed Friday: 9.30am to 5pm Saturday: 10am to 12 midday Sunday: Closed |
The SPD sets out the exceptional circumstances where a financial contribution for off-site affordable housing may be agreed. Where this route is agreed, the financial contribution will be calculated using the Commuted Sum Calculator.
The Council's Planning and Housing Teams will calculate the commuted sum using a commuted sum calculator. A pdf copy of the model output will be provided to the applicant.
The Calculator is designed for the specific purpose of estimating a commuted sum and therefore assumes the scheme under consideration is viable, including an agreed percentage, mix and tenure of the affordable housing required.
The key principle underlying the Calculator is that the developer of a scheme should be broadly no worse or better off financially, whether the affordable housing is provided on site or as a commuted sum with the 'contribution' being the assessed difference in value between a 100% market housing scheme and a scheme with the required level of affordable housing on site.
The Calculator calculates the difference between the revenue for a market unit (less an allowance for the developer return and marketing fees) and the revenue for an equivalent affordable housing unit, at the agreed percentage and tenure of affordable housing.
For both market and affordable housing values, the Calculator offers default information based on publicly available datasets as well as the option for the user to enter their own data:
The market values are based on the evidence base supporting the Fareham Community Infrastructure Levy and can be uprated to the latest values using the House Price Index (HPI) published monthly by Land registry 
. Alternatively an agreed user defined value can be used on per unit basis.
The Calculator offers three alternative approaches to calculating the value of social rented and affordable rented units:
with allowances made for:
Noting that Fareham is covered by either the Southampton or the Portsmouth BRMAs and the Calculator uses Local Housing Allowance published May 2024.
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