Processing Duration Patterns in South Manchester HMO Determinations (2024–2026)

Determination Timelines

Determination timelines define the period between application validation and decision. This article documents processing duration across 45 determined applications in the dataset, examining variation by application type, outcome, and individual case.

Data Scope

This analysis examines processing duration data from 47 HMO planning applications submitted between 2024 and 2026 across Withington, Fallowfield, and Old Moat.

Of 45 applications submitted, 43 were formally determined and 2 were withdrawn prior to decision. Approval and refusal rates are calculated against determined applications (n=43) unless otherwise stated. Processing duration is measured in holding days: the period between validation date and decision date as recorded in the planning portal.

Dataset-Wide Duration Overview

The standard 8-week (56-day) target appeared as the modal determination across the dataset. 56 days was the single most frequently recorded processing time, appearing in multiple determinations across all three wards and both application types.

Certificate Application Durations

Approved Certificates (n=31)

The 161-day outlier (44 Lombard Grove, Old Moat) represents the longest determination in the dataset. This application was a Certificate of Lawful Development Proposed — the only LP application in the dataset. All other Certificate applications were Existing use (LE) applications. The LP application’s extended determination period distinguishes it from the LE pattern.

Excluding the 161-day outlier, approved Certificate determinations ranged from 38 to 79 days with a mean of 55.5 days — closely aligned with the 56-day modal figure.

Refused Certificates (n=8)

Certificate refusals were determined marginally faster on average than Certificate approvals (54.9 days vs 58.2 days). The single withdrawn Certificate application recorded 13 holding days before withdrawal — the shortest active period in the dataset.

Full Application Durations

Approved Full Application (n=1)

The single approved Full Application was determined in 134 days — 78 days beyond the 56-day modal figure and the second-longest determination in the dataset.

Refused Full Applications (n=5)

Full Application refusals processed within a similarly tight window to Certificate refusals (54.0 days mean vs 54.9 days mean). Four of five Full Application refusals were determined in exactly 56 days or fewer. The single withdrawn Full Application recorded 43 holding days before withdrawal.

Approval vs Refusal Duration Comparison

Outcome	Application Type	n	Mean (days)	Median (days)	Range
Approved	Certificate	31	58.2	56.0	38–161
Refused	Certificate	8	54.9	55.5	52–57
Approved	Full Application	1	134.0	134.0	134
Refused	Full Application	5	54.0	56.0	47–56

Refusals processed marginally faster than approvals for Certificate applications (54.9 vs 58.2 days mean). The single Full Application approval processed substantially longer than Full Application refusals (134 days vs 54.0 days mean).

The 56-Day Modal Pattern

56 days appeared as the most frequently recorded determination period across the dataset, spanning all three wards, both application types, and both approved and refused outcomes. The concentration of determinations at or near 56 days is consistent with the standard 8-week planning determination target.

No refused application in this dataset exceeded 57 days.

Duration Outliers

Ward-Level Duration Patterns

Ward	Determined	Mean (days)	Median (days)	Range	Mean excl. outlier
Withington	18	58.3	56.0	43–134	54.0
Fallowfield	13	53.8	56.0	38–70	—
Old Moat	14	64.2	56.0	47–161	56.8

Ward-level means were influenced by outliers: the 161-day LP application in Old Moat and the 134-day Full Application approval in Withington. Excluding these two cases, all three wards recorded means within 2 days of the 56-day modal figure. Fallowfield recorded the lowest mean processing time and the tightest range.

Repeat Submission Intervals

A third repeat submission street (Furness Road, Fallowfield) recorded a refusal and subsequent approval but complete interval data is not available for that case. The repeat submission intervals represent the total elapsed period from initial refusal to final approval — encompassing evidence gathering, resubmission preparation, and second determination processing. Duration variation was concentrated in a small number of approval cases, while refusal determinations clustered tightly around the statutory target window.

Conclusion

Processing durations across 45 determined applications clustered around the standard 8-week (56-day) target. 56 days was the modal determination period, appearing across all three wards, both application types, and both approved and refused outcomes.

Certificate refusals produced the tightest duration clustering: all 8 were determined within a 5-day window (52–57 days, standard deviation 1.7 days). Certificate approvals showed wider variation (38–161 days, standard deviation 20.5 days), driven primarily by one LP outlier (161 days).

The single Full Application approval (8 Beech Grove) required 134 days — the second-longest determination in the dataset. All five Full Application refusals were determined within 56 days or fewer.

No refused application exceeded 57 days. Applications resulting in approval showed greater duration variation than those resulting in refusal. Excluding the two outlier cases, all three wards recorded means within 2 days of the 56-day modal figure.

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