18 Glenlyon Park, Dublin 16, Knocklyon, Dublin 16, D16 C3W8
120 homes sold nearby. See what they went for — and what to bid on this one.
€545,000 · 3 Bed · 3 Bath · 104m² · Semi-D
Market Position
Below Typical Sale Prices
At €545,000, this home is priced below what similar properties sold for in the area. That's a favourable starting position — but consider a structural survey before committing.
120 closed sales nearby · 9mo recency · High confidence · Property Price Register
Sources: PPR, SEAI, OPW, planning records.
How this is calculated
We search the Property Price Register for closed sales near this property — matching by location, beds, property type, and where available, floor area (±20%). This gives us a set of genuinely comparable transactions.
Each sale is then time-adjusted to today using local price trends, so a sale from 18 months ago is inflated (or deflated) to reflect current market conditions. Where floor area is known, sales are also size-adjusted — a 90m² sale is normalised to what it would have sold for at this property's size. This means the figures you see aren't raw prices — they're what those same homes would likely sell for today, at this size.
Your bid strategy (opening offer, sealed bid range, walk-away ceiling) is then derived from the statistical distribution of these adjusted sales — with conservative safety margins applied when data is thin or dated.
Every figure comes from actual government-recorded sale prices. No asking prices, no agent estimates, no automated valuations.
Full methodology →Opening
Start here
Best & Final
If multiple offers
Ceiling
Do not exceed
Before you bid €545,000, get your opening offer, best-and-final range, and walk-away ceiling.
Instant access · No subscription · Refund if not useful
Overbidding by 5% could cost €27,250 before interest.
Analysing 625,000+ Property Price Register transactions since 2010.
What your report includes
Before You Bid
Before you bid €545,000, see this.
Here is what the data says about this property.
Will This Go Over Asking?
above asking
Probability of a sale above asking based on local bidding patterns.
Am I Overpaying?
local sales
Where the asking price sits in the verified local transaction distribution.
Negotiation Leverage Score
How much negotiation leverage you have based on market conditions.
These signals interact — full analysis in report.
€27,250
That's what overbidding by just 5% on a €545,000 home costs you — before interest.
A €19 check before a €545,000 commitment.
Get Your Exact Bid Numbers for This Property
You've seen the market signals. Now get the exact numbers: where to open, how far to go, and when to walk away.
Built from 625,000+ verified Irish property transactions
Based on 120 verified local sales · High confidence
Instant access · No subscription · Refund if not useful
From €19 for your strategy on a €545,000 home. Independent valuations start at €150 — same data source, fraction of the cost.
Price Distribution Analysis
120 verified closed sales within 1.5km · 18 months. Size-adjusted for similar homes (type match, beds ±1, size ±20%).
Asking price is positioned below the size-adjusted median, suggesting favourable entry conditions. Median anchored to size-similar transactions.
This chart shows where the asking price sits versus recent verified closed sales. It does not show your bid strategy.Same baseline as Market Position — size-adjusted.
The chart shows the market. Your report gives the number not to exceed.
Instant access · No subscription · Refund if not useful
Local Market Momentum
Unlock to adjust radius, timespan, and comparison window.
Radius: 1.5kmTime: 18m12m vs 12mMedian transaction price per m² has increased 7.8% year-on-year, based on the trailing 18-month transaction window.
Indicates sustained upward pricing pressure in the local market.
Recent closed sales are time-adjusted to current market conditions before calculating transaction bands.
Statistical Confidence · High
120
Transactions Analysed
Within 1.5km
9 months
Data Freshness
Most recent sale age
±17%
Price Spread
How much prices vary
High
Confidence Level
Recent sale prices in this area are closely clustered, which means the data is reliable and the bid strategy is well-supported.
High data density supports precise entry positioning.
PPR closed sales · size & time adjusted · no asking prices used
Supporting Evidence · 120 Transactions
Size and time adjustments applied before percentile computation.
| Address | Sold | Date | Size |
|---|---|---|---|
| 10 Glenlyon Crescent, Knocklyoh, Dublin 16, Dublin 16, Dublin | 2025-04-17 | 99.5m² | |
| 9 Glenlyon Crescent, Knocklyon, Dublin 16, Dublin 16, Dublin | 2025-12-01 | 135m² |
Transactions within a 1.5km radius and 18-month window.
Methodology
Closed sales time-adjusted to current market · size-weighted where floor area available · no asking prices or agent estimates used.
How adjustments work
- —Older sales inflated to current market level so stale data doesn't skew bands
- —Similar-sized properties weighted more heavily where floor area is known
- —Local price trends factored in when sufficient data exists; no artificial uplift otherwise
- —All figures from registered closed sales only — no asking prices, no agent estimates
Local Market Notes
Property Quality
BER Rating Impact: With a C1 BER rating, this property likely incurs annual energy costs of approximately €1,500-€1,900, whereas a comparable D-rated property could face costs of €1,800-€2,200, offering moderate savings.
Details
- Space Efficiency: At 104 sqm, this property is slightly larger than the average property size of 100.5 sqm within a 1km radius over the last 180 days, offering good value for its size.
- Value Optimization Potential: Upgrading from a C1 BER to a B2 rating could cost an estimated €6,000-€10,000 and potentially increase property value by €10,000-€15,000, representing a viable investment for enhanced market appeal and energy cost reduction.
- Hypothesis: While the BER C1 is acceptable, the lack of any properties within a 1km radius with a BER rating other than 'unknown' in the provided data (BER unknown pct: 100.0% across all timeframes) suggests a general lack of transparency or reporting on energy efficiency in the immediate local market, which may hinder informed buyer decisions and could be an opportunity for this property to differentiate itself with clear BER information and potential upgrades.
Amenities
Transport Connectivity: The area is served by Dublin Bus routes 175 and 65 which provide access to Dundrum and Tallaght respectively; the nearest Luas stop (Green Line) is at Tallaght, approximately 3km away.
Details
- Educational and Healthcare Access: Located within proximity to Scoil Treasa Naofa, St. Colmcille's Community School, and Tallaght University Hospital, offering essential services for families and residents.
- Local Retail and Leisure: Amenities include the nearby Knocklyon Shopping Centre with a Supervalu supermarket and various retail outlets, as well as Tymon Park providing extensive green space for recreation.
- Hypothesis: Given the lack of direct Luas access within close proximity (nearest Green Line at Tallaght, 3km), and the reliance on Dublin Bus routes like the 175 which can experience significant delays during peak hours, properties within 1km that are closer to or have direct access to the Luas Red or Green lines would likely command a premium of 10-15% due to enhanced commuter convenience into Dublin city centre.
Derived from nearby closed-sale patterns.
Built on verified Irish public data
Property Price Register
625,000+ verified closed sales
SEAI
Building energy ratings & floor area
Office of Public Works
Flood zones, events & study areas
MyPlan.ie
Planning applications nationwide
Common Questions
Bid strategy figures are derived from the Property Price Register — Ireland's official record of closed residential sale prices, verified through stamp duty. Floor area data comes from the SEAI BER register. Flood exposure is cross-referenced against OPW CFRAM flood extent mapping and historical flood events. Planning activity is sourced from national planning application records via MyPlan.ie. No asking prices, no agent estimates, no automated valuations.