878.Section 128 to the Housing Act 1985 (“the Act”) provides that where a tenant who has applied for the right to buy is dissatisfied with the valuation provided by his landlord under section 125 of the Act, he may ask the district valuer (an officer of the Valuation Office Agency, a non-profit-making public body) for a determination of value. Section 306 inserts new sections 128A and 128B into the Act to enable a district valuer, either at the request of the landlord or the tenant or on his own initiative, to review a determination of value which appears to have been based on faulty facts. A request or decision to review the original determination must be made within specified time limits, be in writing and set out the reason it is being made. A review may not be undertaken after the sale of the property has been completed. The specified time limits run from the date the landlord serves a notice on the tenant informing him of the determination under section 128. The district valuer will not know when such a notice has been served so provision is made to ensure that the district valuer is made aware of the service of the notice.