20 Fairhaven Close, Castleknock, Dublin 15, D15 Y74C
23 homes sold nearby. See what they went for — and what to bid on this one.
€895,000 · 4 Bed · 4 Bath · 156m² · Semi-D
Market Position
Priced Above Local Sales
At €895,000, this home is priced above what most similar properties sold for recently. Buyers at this level have historically paid a premium — a disciplined opening offer and a firm walk-away ceiling are essential.
23 closed sales nearby · 8mo 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 €895,000, 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 €44,750 before interest.
Analysing 625,000+ Property Price Register transactions since 2010.
What your report includes
Before You Bid
Before you bid €895,000, 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.
€44,750
That's what overbidding by just 5% on a €895,000 home costs you — before interest.
A €39 check before a €895,000 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 23 verified local sales · High confidence
Instant access · No subscription · Refund if not useful
€39 for your strategy on a €895,000 home. Independent valuations start at €150 — same data source, fraction of the cost.
Price Distribution Analysis
23 verified closed sales within 1.5km · 18 months. Size-adjusted for similar homes (type match, beds ±1, size ±20%).
Asking price is positioned above the size-adjusted median. This places the property outside the core transaction band where most comparable homes closed. 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
Statistical Confidence · High
23
Transactions Analysed
Within 1.5km
8 months
Data Freshness
Most recent sale age
±7%
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 · 23 Transactions
Size and time adjustments applied before percentile computation.
| Address | Sold | Date | Size |
|---|---|---|---|
| 45 Fairhaven Avenue, Castleknock, Dublin 15, Dublin 15, Dublin | 2025-09-05 | 101m² | |
| St Marys, 395 Navan Road, Dublin 7, Dublin | 2025-07-31 | 160m² |
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 A3 Advantage: With an A3 BER rating, this property's annual energy costs are estimated to be between €800-€1,200, significantly lower than the €1,800-€2,200 typical for D-rated properties of similar size in the area.
Spacious Configuration: The 156m² size with 4 bedrooms and 4 bathrooms offers a generous living space, outperforming the typical 1km radius median sale price for same-type properties at €786,250, suggesting a good value proposition for size.
Upgrade Potential: While already energy-efficient, minor BER improvements from A3 to A2 would cost an estimated €1,000-€2,000 but could marginally increase perceived market value and appeal.
Hypothesis: The combination of a high BER rating and a substantial 4-bedroom, 4-bathroom configuration suggests this property is well-positioned for families seeking modern, energy-conscious living, and its value is likely more influenced by its specific features than broader market fluctuations for less specified property types.
Amenities
Excellent Transport Links: Served by Dublin Bus routes 25, 66, and 67, with proximity to train services likely available via Castleknock train station, facilitating easy commutes across Dublin.
Education Hub: Located in an area with strong educational facilities, including St. Brigid's Boys National School and Mount Sackville School, making it attractive for families.
Retail and Leisure Access: Close proximity to the Phoenix Park for recreational activities and the Blanchardstown Shopping Centre for extensive retail options, enhancing lifestyle convenience.
Hypothesis: The strong presence of reputable primary and secondary schools within walking distance, combined with direct bus routes to key employment and retail hubs, positions this property as a prime choice for families, likely commanding a consistent demand and upward price pressure due to its family-centric amenities.
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.