🗓 Submission Timing Intelligence
When is the best month — and weekday — to submit your planning application? Real approval-rate + decision-speed data from 144,167 dated decisions across UK LPAs.
📊 Hammersmith and Fulham
Months below refer to when you submit, not when the decision lands. Each application is bucketed by its received_date month — but the approval rate measures the final outcome, whenever it landed (60-90 days later typically). The lag is already baked into the signal: "submit in December = 100% approval" already accounts for the fact that those decisions arrive in Feb/March. The month-by-month table below shows the lag explicitly so you can see the full cycle.
Use the type chips above to filter to the application type you are actually making — and treat cross-council comparisons of the mixed number with care, since the mix depends on which source fed each council.
🎯 Inverse view — "I want a decision in [month], when do I submit?"
Based on this LPA's typical decision-lag of 90 days (~3 months), the table below shows when to submit if you want your decision to land in a specific month.
| If you want a decision in... | Submit by (approx.) | That submit month's approval rate |
|---|---|---|
| Jan | Submit by end of Oct | 100% |
| Feb | Submit by end of Nov | 96.8% |
| Mar | Submit by end of Dec | 100% |
| Apr | Submit by end of Jan | 100% |
| May | Submit by end of Feb | 100% |
| Jun | Submit by end of Mar | 100% |
| Jul | Submit by end of Apr | 100% |
| Aug | Submit by end of May | 85.7% |
| Sep | Submit by end of Jun | 75% |
| Oct | Submit by end of Jul | 6.7% |
| Nov | Submit by end of Aug | 50% |
| Dec | Submit by end of Sep | 100% |
Inverse calculation is approximate — actual decision time varies (range typically ±30 days). Use the Decision Time Predictor for tighter forecasts.
⏱ Decision speed by application type
How long different application types actually take at Hammersmith and Fulham. Householder apps are statutorily 8 weeks; full/major are 13 weeks — but the real numbers usually drift. This is what the data says, not what the statute says.
→ Fastest: Amendment / NMA (46 days). Slowest: Advertisement (157 days).
| Application type | Decisions | Approval rate | Avg days | Range | |
|---|---|---|---|---|---|
| Full / Major | 190 | 84.2% | 117 d (17 wk) | 48–289 d | ✕ clear |
| Householder | 48 | 100% | 85 d (12 wk) | 48–317 d | Filter ▸ |
| Advertisement | 46 | 47.8% | 157 d (22 wk) | 53–239 d | Filter ▸ |
| Discharge Conditions | 39 | 94.9% | 119 d (17 wk) | 27–315 d | Filter ▸ |
| Amendment / NMA | 23 | 100% | 46 d (7 wk) | 22–150 d | Filter ▸ |
| Conservation Area | 16 | 93.8% | 63 d (9 wk) | 47–100 d | Filter ▸ |
| Tree Works / TPO | 16 | 93.8% | 58 d (8 wk) | 47–86 d | Filter ▸ |
| Lawful Development | 13 | 92.3% | 67 d (10 wk) | 49–128 d | Filter ▸ |
| Listed Building | 10 | 100% | 88 d (13 wk) | 56–130 d | Filter ▸ |
| Heritage / LB (low sample) | 4 | 100% | 162 d (23 wk) | 122–211 d | Filter ▸ |
| Prior Approval (low sample) | 2 | 100% | 268 d (38 wk) | 216–319 d | Filter ▸ |
| Change of Use (low sample) | 2 | 100% | 268 d (38 wk) | 216–319 d | Filter ▸ |
ⓘ Month-by-month stats above are filtered to Full / Major only. The table above always shows all types so you can compare.
📅 Month-by-month breakdown — full submit→decide cycle
Each row shows the complete journey for applications received in that month: how long they took, when the decision actually landed, and what % were approved. The approval rate already accounts for everything that happens between submission and decision — the lag is part of the signal.
| Submit month | Decisions | Approval rate | Median lag | Decision typically lands in | Range |
|---|---|---|---|---|---|
| January | 5 |
100%
|
227d (~32wk) (outlier) | → September | 197–240d |
| February | 3 |
100%
|
179d (~26wk) | → August | 172–184d |
| March | 8 |
100%
|
167d (~24wk) | → September | 145–188d |
| April | 15 |
100%
|
145d (~21wk) | → September | 109–289d |
| May | 35 |
85.7%
|
99d (~14wk) | → August | 55–280d |
| June | 32 |
75%
|
114d (~16wk) | → October | 55–239d |
| July | 15 |
6.7%
|
221d (~32wk) (outlier) | → February | 206–225d |
| August | 4 |
50%
|
173d (~25wk) | → February | 149–184d |
| September | 4 |
100%
|
119d (~17wk) | → January | 105–125d |
| October | 15 |
100%
|
91d (~13wk) | → January | 75–111d |
| November | 31 |
96.8%
|
64d (~9wk) | → January | 49–85d |
| December | 23 |
100%
|
92d (~13wk) | → March | 48–274d |
Read across each row: submit in [month] → wait [median lag] → decision lands in [target month] → outcome [approval rate]. The approval rate is the final outcome of the whole cycle, not a snapshot.
🗓 Day-of-week patterns
| Day received | Decisions | Approval rate | Avg days |
|---|---|---|---|
| Monday | 32 | 68.8% | 169 |
| Tuesday | 49 | 93.9% | 144 |
| Wednesday | 44 | 65.9% | 158 |
| Thursday | 28 | 100% | 148 |
| Friday | 37 | 97.3% | 105 |
| Saturday | 6 | 83.3% | 94 |
📊 Data sources & freshness
Timing is a tactical edge, not strategic justification. Use alongside the constraint check + pattern fingerprint to make the case strong on substance, then time it to land well.
- planning_applications.received_date (updated Daily ingest)
144,167 dated decisions where a submission date and a decision are both known. The submission date is received_date, falling back to validated_date — many council portals publish only the validated date, and the statutory clock runs from it. Approval = approved/granted/permit. Sample size gating: months with fewer than 8 decisions excluded from best/worst recommendation. - Day-of-week patterns
Reflects when applicants choose to submit, which may correlate with applicant type (Monday = professional consultants; Friday = end-of-week DIY submissions). Causality is correlative not causal. - Decision-time outliers
Months showing 200+ day averages are flagged — they reflect older PINS-appeal-derived rows where determinations stretched over many months. Read the Jan/Feb/Nov/Dec numbers (largest samples) as the reliable benchmark.