Refused on affordable housing policy compliance

A refusal that cites failure to comply with the development plan's affordable housing policy is usually curable, and it is worth working out which of three things the council actually means before you decide what to do about it. Either the scheme offers less affordable housing than policy requires, or it offers the right amount in the wrong tenures or unit sizes, or the amount was never secured because no section 106 agreement was completed in time. The third is a paperwork failure dressed as a policy failure, and it is the one most often resolved on appeal with a unilateral undertaking.

Read the reason as written. An affordable housing refusal appeal turns on the precise allegation, and a reason that complains about tenure mix will not be answered by offering more units.

What a policy compliance refusal alleges

A typical reason refers to a named development plan policy and says the proposal fails to provide the required proportion of affordable homes, or fails to provide an acceptable mix, and that it is therefore contrary to the plan and to the housing policies of the NPPF. Sometimes the reason adds that no mechanism has been secured.

Three things follow from that wording. The policy named sets the benchmark, so you need the adopted wording rather than a summary. The reason tells you whether viability was accepted or rejected. And where the reason is silent on viability, the council is saying the scheme could have complied and chose not to.

Pull the officer report alongside the notice. The report usually contains the arithmetic and the housing officer's consultation response, which together show how the figure was reached. Our guide to reading a refusal notice and turning it into a plan covers that forensic stage.

Percentage, tenure and mix requirements

Policy requirements come in layers, and an appeal is lost by missing one of them.

The headline percentage applies to major development, which national policy frames around 10 or more dwellings or a site of 0.5 hectares or more. The percentage itself is a local plan matter and varies widely between authorities, so quote the figure from the adopted policy and check whether a supplementary planning document modifies how it is applied.

Tenure split is separate. A policy may require a proportion of social or affordable rent and a proportion of intermediate housing, and national policy expects a share of affordable home ownership on most major sites. A scheme that hits the percentage entirely through shared ownership fails a policy that asks for rented homes, however good the total looks.

Unit mix is the layer applicants forget. Housing officers assess against the authority's evidence of need, which is usually expressed in bedroom sizes. Offering the required percentage as one-bedroom flats on a site where the need is for family housing produces an objection that no amount of quantum fixes.

Design matters too. Policies commonly ask for tenure-blind treatment, distribution across the site rather than a single cluster, and access arrangements that do not separate occupants. Those points belong in the Affordable Housing Statement rather than being left for the housing officer to infer from the drawings.

Where viability is and is not the answer

Viability is the answer to a question the council has not asked unless the refusal says so. National guidance is clear that the weight given to a viability assessment at the decision stage is a matter for the decision maker, and that an assessment is not expected where a proposal is policy compliant. It also makes plain that the price paid for the land does not justify a reduced contribution.

Where an appraisal is the route, the inputs that get argued are benchmark land value, gross development value, build costs, developer return and finance. Expect the council's own reviewer to test each. A Viability Assessment in planning is work that councils expect from a suitably qualified author, usually working to the relevant professional valuation standards, and professional review before submission is strongly advised.

Appraisals submitted at appeal face a further problem. The inspector sees a document the council never had the chance to test through its own consultant, which invites a request for an adjournment or a costs application.

Commuted sums and the policy tests

Off-site provision or a financial contribution is possible where it can be strongly justified and where the agreed approach contributes to the creation of mixed and balanced communities. That is a higher bar than convenience.

Justifications that tend to work are site-specific. A scheme too small to interest a registered provider, a site where management of a handful of rented units is impractical, or a constrained plot where the required mix cannot be accommodated. Justifications that tend to fail are generic: that on-site provision reduces sales values, or that the applicant would prefer to pay.

Where a sum is offered, the calculation method matters. Councils usually publish a formula or a per-unit figure in a supplementary planning document, and departing from it needs a reasoned alternative. Check the current schedule, because these figures are commonly reviewed.

Review mechanisms as a compromise

A review mechanism is the standard way out of a disagreement about future values. The scheme is permitted on a reduced offer now, with a clause in the section 106 requiring the appraisal to be rerun at a defined trigger and additional affordable housing or a payment to follow if values have improved.

Common structures are an early-stage review, triggered if development has not substantially started within a set period, and a late-stage review after a stated proportion of units are sold. Some authorities use a mid-stage review on phased sites.

Negotiating one takes care over three points: the trigger, the inputs that are fixed versus rerun, and any cap on the additional contribution. A clause with no cap, reopening every input, is a very different commitment from one that revisits sales values alone.

Review mechanisms also have a cost. Monitoring fees, surveyor time at each review, and the uncertainty they put into a funding appraisal are real, so weigh them against simply meeting policy.

Evidence to submit on appeal

For a section 78 appeal on this ground, the pack usually needs:

1. The adopted policy wording, in full, with any supplementary guidance and its date.
2. A schedule of units by tenure, bedroom size and floor area, cross-referenced to the drawings.
3. A completed section 106 agreement or a unilateral undertaking in a form the council has seen.
4. Correspondence with registered providers, where the deliverability of the proposed tenure mix is disputed.
5. A viability appraisal with its inputs evidenced, only where the refusal puts viability in issue.
6. Housing land supply and delivery evidence where you say the plan's policies carry reduced weight.

A unilateral undertaking does a lot of work. Where the only defect was the absence of a signed agreement, serving an undertaking with the appeal removes the reason, and the council may be exposed to a costs application if it defends the refusal regardless.

Choose the procedure to match. Written representations suit a straightforward dispute about a schedule. A viability dispute with competing appraisals needs the cross-examination that only an inquiry provides.

Negotiating before refusal

Most of this is avoidable. Engage the housing officer early, before the drawings fix the unit mix, and ask for the current need evidence in writing. Ask whether the authority has preferred registered providers and whether any has an interest in the site.

Where the offer will fall short, send the appraisal early and expect it to be reviewed at your cost. And where the agreement is the obstacle, ask for an extension of time rather than letting the determination period expire into a refusal. Withdrawing can also be sensible, and the trade-offs are set out in our note on withdrawing an application before refusal.

One honest caveat: councils under housing delivery pressure sometimes hold a firmer line on affordable housing than an inspector would, and sometimes the reverse. The evidence base, not the atmosphere in the room, decides it.

Draft your Planning Statement and affordable housing case in minutes with PlanScope, then send them for professional review before you appeal. PlanScope provides AI-assisted draft reports for planning applications. Reports should be reviewed before submission. We do not guarantee planning approval. This is general guidance, not legal advice; check the position with your local planning authority or a qualified professional before relying on it.