Estate Agent Intelligence
NI Rank
#58of 178
Median days
70days
Listings analysed
44
Strongest in BT15 area
26 days faster than the segment median
Based on data from March 2026 – September 2026 · independently observed by ClearKey
This page summarises independently observed market activity for Simon Brien (North Belfast). Based on ClearKey's analysis of 44 qualifying transactions in March 2026 – September 2026, Simon Brien (North Belfast)'s listed properties moved from listing to sale agreed in a median of 70 days. This is 5 days faster than the Northern Ireland median of 75 days across all qualifying agents for the same period. Simon Brien (North Belfast) ranks 58 of 178 agents with sufficient qualifying transactions to appear in ClearKey's dataset.
Simon Brien (North Belfast)'s strongest measurable performance is in BT15 area — where their median selling time is notably ahead of the segment benchmark. Within the dataset, Simon Brien (North Belfast) ranks fastest in the BT15 postcode district.
Speed to sale agreed is one indicator of performance, not a comprehensive measure of service quality. It does not capture price achieved relative to asking price, fall-through rates, or quality of buyer qualification.
Median days
70d
Primary metric
Average days
68d
Mean
Transactions
44
0.8% market share
NI rank
#58
of 178 agents
Speed comparison
Segments where this agent performs measurably faster than the relevant benchmark. Only statistically meaningful strengths are shown.
BT15 area
Median 52d · 26 days faster than segment median (78d) · #1 in segment
Strengths are identified automatically from ClearKey's dataset. They reflect measured speed relative to comparable transactions — not a subjective assessment of service quality.
Postcode districts covered
★ Indicates district where this agent ranks #1 for speed
Detached
Medium67days
Semi-detached
Medium70days
Terraced
Medium51days
£150k – £250k
High61days
BT15
Medium52days
Observations generated from ClearKey's dataset. All statements are derived from measured data — no subjective assessments.
Selling time broadly in line with the Northern Ireland average
This agent's median of 70 days places them close to the Northern Ireland median of 75 days. This suggests performance consistent with typical market conditions during this period.
Strongest performance in BT15 area
Within the BT15 area segment, this agent recorded a median of 52 days — 26 days faster than the segment's overall median of 78 days. This places them in the top performers for this property type.
Fastest agent in the BT15 area
In the BT15 postcode district, this agent ranked first with a median of 52 days — 26 days faster than the local median of 78 days.
Wide variation in selling times — 38 to 93 days for the middle 50%
The middle 50% of this agent's listings sold in 38 to 93 days — a spread of 55 days. This breadth suggests the agent handles a diverse portfolio where individual property characteristics have a significant effect on how long each takes to sell.
Ranking supported by a substantial transaction sample
With 44 qualifying transactions in this period, this agent's ranking is in the high-confidence bracket. A larger dataset makes the median more robust to individual outliers.
Days on market is calculated from the property's listing date to the date it moved to sale-agreed or likely-sold status — not to legal completion.
Median is used as the primary ranking metric rather than average — it is more robust when individual portfolios contain outlier properties that take unusually long to sell.
Only agents with a minimum of 10 qualifying sale-agreed transactions in the analysis period appear in the main ranking. Segmented breakdowns (property type, price band, region) use an adaptive minimum between 3 and 10 transactions, scaled to the total activity in that segment — this prevents niche segments from showing almost no ranked agents.
Properties with a days-on-market figure exceeding 1,095 days (3 years) are excluded as likely data anomalies.
All data derived from ClearKey's verified Northern Ireland property listings database. Rankings are computed independently and cannot be influenced by estate agents.
Speed is not the same as price achieved. This page measures how quickly listed properties moved to sale agreed — not whether they achieved asking price, above, or below.
Area effects. Agents operating in postcodes with naturally faster market velocity will tend to rank higher regardless of individual firm performance.
Property mix. Agents handling premium, rural, or specialist stock that takes structurally longer to sell may rank lower without any reflection on service quality or client outcomes.
Name fragmentation. The same firm may appear under slightly different name variants in listing data, which can split their transaction count and affect ranking.
View the full NI ranking and compare Simon Brien (North Belfast)side-by-side with other agents in ClearKey's Estate Agent Speed reports.
Data covers March 2026 – September 2026 · Published by ClearKey · Independently observed