Castlewarden, Straffan, Co. Kildare
6 homes sold nearby. See what they went for — and what to bid on this one.
€595,000 · 3 Bed · 1 Bath · 108m² · Detached
Market Position
At the Upper End of Local Sales
At €595,000, this home is priced above what similar properties sold for — buyers at this level tend to overpay without a defined ceiling.
6 closed sales nearby · 14mo recency · Moderate 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 €595,000, 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 €29,750 before interest.
Analysing 625,000+ Property Price Register transactions since 2010.
What your report includes
Before You Bid
Before you bid €595,000, 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.
€29,750
That's what overbidding by just 5% on a €595,000 home costs you — before interest.
A €19 check before a €595,000 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 6 verified local sales · Moderate confidence
Instant access · No subscription · Refund if not useful
Price Distribution Analysis
6 verified closed sales within 3.0km · 24 months. Size-adjusted for similar homes (type match, beds ±1, size ±20%). Filters broadened to increase sample size.
Asking price is positioned above the median of comparable sales. 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
Financial Exposure · 20% Above Median
If purchased at asking, you are paying above where most similar homes sold. A defined ceiling is designed to close this gap.
If purchased at asking
€595,000
Above transaction median
Above Upper Range
Buying at asking would put you well above what similar homes sold for — that's elevated overpayment risk.
Statistical Confidence · Moderate
6
Transactions Analysed
Within 3.0km
14 months
Data Freshness
Most recent sale age
±20%
Price Spread
How much prices vary
Moderate
Confidence Level
Sale prices in this area vary more than usual, so there is some uncertainty in the figures. Bid conservatively and in small increments.
Limited recent transaction volume reduces trend precision. Strategy remains anchored to closed-sale distribution.
PPR closed sales · size & time adjusted · no asking prices used
Supporting Evidence · 6 Transactions
Size and time adjustments applied before percentile computation.
| Address | Sold | Date | Size |
|---|---|---|---|
| Bishopscourt, Straffan, Kildare, Kildare | 2025-05-07 | 192m² | |
| Oughterard, Straffan, Kildare, Kildare | 2026-01-27 | 159.6m² |
Transactions within a 3.0km radius and 24-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
Significant BER Upgrade Needed: The F BER rating necessitates substantial investment; upgrading to a C rating could cost approximately €10,000-€15,000 and potentially add €15,000-€20,000 in property value, while improving annual energy costs from an estimated €2,200-€2,800 to €1,200-€1,600.
Space Efficiency Analysis: With 108m² across 3 bedrooms and 1 bathroom, the property offers 36m² per bedroom, which is below the optimal standard for comfortable family living, suggesting potential for re-configuration to improve utility and perceived value.
Value Optimization Opportunity: Given the F BER rating, investing in insulation upgrades, a new heating system, and energy-efficient windows for an estimated €10,000-€15,000 is crucial for market competitiveness and can enhance the property's appeal and long-term value by an estimated €15,000-€20,000.
Hypothesis: The F BER rating, coupled with a less-than-ideal bathroom-to-bedroom ratio, indicates that this property may be priced for a buyer seeking a project, and its true market potential will only be unlocked after significant investment in energy efficiency and potentially a bathroom renovation, which could shift its valuation towards the higher end of similar properties with better specifications.
Amenities
Limited Direct Public Transport: Castlewarden, Straffan, is not directly served by Luas, DART, or specific Dublin Bus routes within immediate walking distance; residents would typically rely on private transport or longer journeys to access services like Dublin Bus routes 66/67 from nearby Maynooth or Celbridge.
Proximity to Key Services: The location provides relatively good access to essential services, with St. Mary's National School in Straffan (approx. 3km) and Maynooth Town offering a range of shopping, healthcare clinics, and restaurants, while Connolly Hospital is accessible by car (approx. 20-25km).
Lifestyle and Recreation: Residents can enjoy local amenities such as The K Club golf resort (within 2km) and various country walks, with larger shopping centres like Liffey Valley approximately a 30-minute drive, offering a balance between rural tranquility and access to amenities.
Hypothesis: The value of properties in Castlewarden, Straffan, is heavily influenced by their appeal as rural retreats, with connectivity being a secondary concern for buyers; however, any future development plans for enhanced public transport links or improved local retail offerings could significantly uplift property values by attracting a broader demographic of buyers seeking both tranquility and convenience.
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 flood extent mapping (CFRAM fluvial + NCFHM coastal) and historical flood events. Planning activity is sourced from the National Planning Application Database via MyPlan.ie — merged Local Authority planning registers from the Department of Housing. No asking prices, no agent estimates, no automated valuations.