20 Sefton Green, Dun Laoghaire, County DublinA96FK35
€675,000
3 Bed~3 Bath~102 m²~BER B
What you'll like:
- Energy efficient rating: The property boasts a strong B energy rating, which generally helps keep utility bills lower and may qualify the buyer for a green mortgage rate.
- Turnkey presentation condition: The interior is beautifully presented and modernized throughout, allowing the purchaser to move in immediately without undertaking any substantial initial decorative works.
- Green area frontage: Situated in a peaceful cul-de-sac overlooking a large central green, providing an attractive, open outlook and a safer environment for children playing outdoors.
- Open plan kitchen extension: Features an impressive extended rear kitchen and dining space equipped with high-end quartz countertops, a Quooker tap, and integrated Bosch and AEG appliances.
- Abundant natural light: Enhanced by two Velux roof windows and sliding doors in the rear dining area, as well as additional Velux windows in the converted attic space.
- Multi fuel stove fireplace: The front living room includes a cozy, enclosed wood-burning stove set into a focal-point fireplace, creating a warm and inviting atmosphere for winter evenings.
- Private rear garden: The north-west facing rear garden captures excellent evening sunshine and includes a yellow granite patio, timber decking, and a lawn for outdoor dining and entertaining.
- Practical garden shed: Includes a solidly built timber shed equipped with mains electricity, lighting, and external power sockets, making it highly functional for storage or hobbies.
- Off street parking space: The front driveway features a well-maintained concrete surface providing convenient off-street parking alongside a small grassy lawn.
- Main bedroom ensuite: The primary bedroom includes built-in wardrobes and a fully tiled private ensuite shower room fitted with an electric Triton power shower.
- Modern bathroom amenities: Both the family bathroom and ensuite feature the added luxury of electric underfloor heating and fully tiled contemporary finishes.
- Smart under stairs storage: The hallway incorporates clever custom pull-out under-stairs storage and a dedicated coat store, maximizing the utility of every available square meter.
- Integrated technology systems: Equipped with a modern Nest heating control system, a Worcester Bosch gas boiler, and vertical radiators designed for efficient heating distribution.
- Floored attic conversion: Features a floored attic space accessed via an alternating solid red oak staircase, complete with electrics and eaves storage for practical organizational needs.
- Convenient side access: Provides a secure side passage connecting the front driveway directly to the rear garden without needing to bring maintenance items through the house.
- Established residential location: Set within a quiet, mature, and tree-lined South County Dublin neighborhood known for its peaceful suburban character and community stability.
- Proximity to shopping centres: Located close to Killiney Shopping Centre, Tesco, and Park Pointe, ensuring everyday grocery and retail needs are easily met within minutes.
- Excellent educational options: Surrounded by a wide selection of well-regarded schools including Rathdown, Loreto Foxrock, and CBC Monkstown, plus convenient access to UCD.
- Diverse public transport: Well-served by multiple Dublin Bus routes and within reach of both the Glenageary and Dun Laoghaire DART stations, plus the Cherrywood Luas line.
- Coastal recreational access: Situated a short distance from the coastline, marine walks, and beaches of Dun Laoghaire and Killiney, offering fantastic weekend leisure opportunities.
But keep in mind:
- Excluded garden feature: The large tree fern located in the rear garden is specifically excluded from the sale and will be removed by the current owners prior to closing.
- Unverified appliance condition: The estate agent notes that appliances and services have not been tested, meaning buyers should independently verify the working order of the integrated kitchen machinery.
- Non binding floor plans: The provided floor plans are for illustrative guidance only and should not be relied upon blindly for precise architectural measurements or furniture planning.
- North westerly orientation limitations: While the rear garden enjoys evening sun, a north-westerly aspect may receive less direct sunlight during winter mornings compared to south-facing gardens.
- Attic compliance questions: Buyers should investigate whether the converted attic space with its alternating oak staircase holds full regulatory compliance or structural sign-off for habitable use.
- Compact third bedroom: The third bedroom is relatively modest in floor area at approximately 2.59m by 2.45m, which may restrict its versatility as a full double bedroom.
- Compact family bathroom: The main family bathroom measures around 2.48m by 1.48m, presenting a narrower layout that leaves limited floor space around the fixtures.
- Potential parking constraints: Being located in a mature cul-de-sac, on-street parking for visitors may become restricted during peak evening hours when multiple residents have guests.
- Maintenance of shared paths: Buyers should check if there are any formal management agreements or shared responsibilities for the leafy pedestrian and cycle route linking to Honeypark.
- Boiler location in WC: The gas boiler is housed within a concealed press in the guest WC, which could make routine servicing or future replacement slightly constrained by tight space.
- Flooring transition maintenance: The ground floor combines high-quality laminate flooring with tiled surfaces, requiring careful attention to waterproof transition strips in high-moisture kitchen areas.
- Ensuite and bathroom size: Both the ensuite and the main bathroom rely on compact layouts with pocket-sized dimensions, which might feel cramped for larger family households.
- Traffic noise considerations: Proximity to Rochestown Avenue could introduce intermittent traffic noise during rush hours, so buyers should visit at different times to assess ambient sound.
- Future extension limits: Given that the property has already been extended to the rear and features an attic conversion, further significant footprint expansions may be constrained by site boundaries.
- Local development density: Ongoing high-density housing developments in surrounding areas like Honeypark could gradually increase local traffic congestion on nearby feeder roads.
- DART station distance: While DART stations are accessible, walking to either Glenageary or Dun Laoghaire stations takes a moderate amount of time, likely requiring a bus or bike connection.
- Eaves storage damp check: The four access points to floored eaves storage in the attic should be inspected carefully for adequate insulation and ventilation to prevent moisture accumulation.
- Quooker tap maintenance: The integrated Quooker instant boiling water tap requires specialized filter replacements and periodic servicing by qualified technicians.
- Multi-fuel stove clearance: The enclosed wood-burning stove in the living room requires regular professional sweeping and adherence to local solid fuel burning regulations.
- Draft due diligence on windows: Double-glazed windows should be thoroughly inspected during a survey to confirm their age, seal integrity, and thermal performance match the B BER rating expectations.
Price positioning
?
- The asking price appears attractively positioned relative to recent local transactions, suggesting potential under-valuation when compared against historically achieved figures for similar properties in the immediate development.
- Upward valuation signals are driven by extensive modern upgrades, a strong energy efficiency rating, and a desirable position overlooking a mature green space, which typically attracts robust market interest.
- Market support could be undermined by broader economic headwinds or limited competitive bidding, whereas sustained buyer demand for turnkey suburban housing should easily sustain or exceed this asking figure.
- Overall, the pricing strategy reflects a realistic entry point designed to stimulate competitive interest while aligning closely with historical sales benchmarks recorded in the immediate vicinity.
Build Analysis
What we know from similar construction types
- The property features an extension to the rear creating an open-plan kitchen and dining area with Velux windows, meaning a buyer should verify that appropriate planning permission, building regulations compliance, and structural steel calculations were obtained for the extension and internal layout modifications.
- The attic has been converted or adapted with an alternating solid red oak tread staircase, flooring, and Velux windows for storage and natural light; a buyer should investigate whether this attic space complies with current building regulations for habitable rooms or if it is strictly classified for storage use.
- The house benefits from a B energy rating, double-glazed windows, gas-fired central heating with a Nest system, and an enclosed multi-fuel stove, which generally indicate good thermal efficiency and modern heating controls.
- A buyer should check the condition and service history of the Worcester Bosch boiler located in the guest WC and verify the operation of the electric underfloor heating in the bathrooms.
Heating cost*
Estimated expense to heat this property every year
- Estimated annual heating cost: €1,100 to €1,400.
- Explanation: The property has a B energy rating, double-glazed windows, gas-fired central heating with a Nest heating system, and an enclosed multi-fuel stove in the living room, which helps maintain good energy efficiency for a 102 square metre semi-detached home.
Pollution Safe
9/10Environmental situation to investigate
- The property is situated in a mature residential suburb well removed from heavy industrial sites, major modern landfills, or active waste incinerators.
- Any historical or legacy industrial uses in the broader Dun Laoghaire-Rochestown area are distant, though prospective buyers can verify local environmental records for complete peace of mind.
Flood Safe
9/10Water overflow reports to follow up
- The location sits well above coastal flood zones and away from major river networks, indicating a generally low apparent likelihood of pluvial or fluvial flooding.
- Standard local drainage appears to serve the established residential neighborhood well, though thorough checks of regional flood maps are recommended for absolute certainty.
Recent Local Sales
Verified residential transactions published in the previous five years
Sales on the same street or estate
22 SEFTON GREEN, ROCHESTOWN AVE, DUN LAOGHAIRE
- Sale date
- Declared sale price
- €722,000.00
14 SEFTON GREEN, ROCHESTOWN AVE, DUN LAOGHAIRE
- Sale date
- Declared sale price
- €627,500.00
1 SEFTON GREEN, ROCHESTOWN AVE, DUN LAOGHAIRE
- Sale date
- Declared sale price
- €583,500.00
42 SEFTON GREEN, ROCHESTOWN AVE, DUN LAOGHAIRE
- Sale date
- Declared sale price
- €685,000.00
40 SEFTON GREEN, ROCHESTOWN AVE, DUN LAOGHAIRE
- Sale date
- Declared sale price
- €639,000.00
Recent sales in the wider Dun Laoghaire area
139 GRANITEFIELD MANOR, ROCHESTOWN AVE, DUN LAOGHAIRE
- Sale date
- Declared sale price
- €370,000.00
3 WOODLANDS DR, DUN LAOGHAIRE, DUBLIN
- Sale date
- Declared sale price
- €855,000.00
4 CASTLEGATE, OLIVER PLUNKETT ROAD, DUN LAOGHAIRE
- Sale date
- Declared sale price
- €360,000.00
42 SMITHS GARDENS, YORK ROAD, DUN LAOGHAIRE
- Sale date
- Declared sale price
- €475,000.00
1 ST JOSEPHS TERRACE, TIVOLI RD, DUN LAOGHAIRE
- Sale date
- Declared sale price
- €550,000.00
Source: Property Services Regulatory Authority (PSRA), Residential Property Price Register (PPR).
Matching uses address information published by the PPR rather than measured map distance. It may omit nearby properties on differently named streets.
Last Sale
A confidently matched previous PPR transaction for this property
No confidently matched previous sale was found in the Property Price Register.
Buyer fees*
Associated expenses guide
- Stamp duty: approximately €6,750 based on 1% of the asking price for residential property up to €1 million.
- Solicitor legal fees: roughly €1,500 to €3,000 excluding outlays and VAT.
- Land registration fees: around €600 to €800 depending on property value and registration type.
- Property valuation fees: approximately €150 to €300.
- Surveyor fees: roughly €500 to €1,000 depending on the level of detail required for a structural survey.
- Annual home insurance: approximately €400 to €800 depending on the policy and coverage level.
Forum Talk
What people are saying about this area
- Residents frequently highlight the quiet, mature, and tree-lined nature of the Sefton development off Rochestown Avenue.
- Local community discussions often praise the convenient proximity to nearby shopping centres like Park Pointe and Killiney Shopping Centre.
- Commuters in the area frequently discuss transport connectivity, highlighting local bus routes and nearby DART stations at Glenageary and Dun Laoghaire.
- Families often mention the strong selection of well-regarded local primary and secondary schools situated around the Dun Laoghaire and Dalkey areas.
LifeFit Assessment
How well this property may suit your lifestyle
Family
7 areas- Young Children8/10
The property offers three bedrooms, a safe cul-de-sac setting overlooking a central green, and close proximity to local schools and parks, making it well-suited for young families.
- Teenagers7/10
Three bedrooms and good living space provide adequate room, while local educational options and transport links offer independence for teenagers.
- Multi-generational Living5/10
While the extended open-plan living area is spacious, the three-bedroom semi-detached layout lacks a self-contained annex or ground-floor bedroom suite.
- Single Buyers7/10
A turnkey property with excellent public transport links and proximity to surrounding villages, though the three-bedroom size may exceed initial needs.
- Couples9/10
The stylish open-plan kitchen/dining room, turnkey condition, and dedicated home office or guest potential make this an ideal choice for couples.
- Empty Nesters8/10
Low-maintenance garden spaces, a manageable floor area, and a quiet mature setting appeal strongly to those looking to downsize without losing quality.
- Retirees7/10
The mature development and single-level ground floor conveniences are positive, though stairs to the bedrooms and upper attic storage should be noted.
Work
3 areas- Remote Working9/10
The floored attic with Velux windows and flexible bedroom spaces provide excellent options for home offices and remote working setups.
- Hybrid Commuting9/10
Convenient access to DART stations at Glenageary and Dun Laoghaire, local bus routes, and the N11/M50 make hybrid commuting straightforward.
- Retired8/10
A secure, quiet, and well-connected environment suitable for retirees seeking a comfortable suburban base.
Practical
8 areas- Ageing in Place6/10
Features single-level ground floor living spaces, but the presence of stairs to bedrooms and the attic requires consideration for long-term accessibility.
- Low Maintenance8/10
Presented in turnkey condition with modern finishes, double-glazed windows, and a manageable garden space requiring minimal upkeep.
- Secure Gated Entry3/10
The property is located in an open mature cul-de-sac development rather than a private gated community.
- Minimalist Design7/10
Clean modern interiors, recessed lighting, and integrated storage solutions offer a contemporary minimalist aesthetic.
- Flexible Floor Plans8/10
The extended open-plan ground floor, multiple bedrooms, and converted attic space offer versatile layout options.
- Heritage Home2/10
This is a modern, extended property within an established development rather than a period heritage home.
- Ecological Setup8/10
Benefits from a strong B energy rating, double glazing, a Nest heating system, and an enclosed multi-fuel stove.
- Outdoor areas8/10
Includes a front driveway with parking, a private north-west facing rear garden with granite patio and decking, plus a powered timber shed.
Interests
9 areas- Gardening7/10
Features a generous north-west facing rear garden with patio, lawn, decking, and a timber shed, offering good potential for keen gardeners.
- Walking8/10
Proximity to local parks, green spaces, and coastal walks provides ample opportunities for walking enthusiasts.
- Gym6/10
While local fitness amenities are accessible in the surrounding areas, there is no dedicated home gym setup beyond standard room space.
- Cycling8/10
A shared leafy pedestrian and cycle route links the development directly with Honeypark, enhancing local cycling convenience.
- Golf7/10
South County Dublin hosts several reputable golf clubs within a reasonable driving distance.
- Fishing6/10
Coastal proximity offers sea fishing opportunities nearby, though specific freshwater spots require travel.
- Horse Riding5/10
Equestrian facilities are generally located further out in the surrounding county rather than immediately on hand.
- Water Sports8/10
Dun Laoghaire is renowned for its marine amenities, sailing clubs, and water sports opportunities.
- Entertaining9/10
The impressive open-plan kitchen/dining room with a large island and Quooker tap, combined with a decked rear garden, is tailor-made for hosting guests.
Lifestyle
5 areas- Quiet Living9/10
Situated in a mature, tree-lined cul-de-sac overlooking a large central green, the property offers a peaceful residential environment.
- Rural Living3/10
Located in a well-established suburban residential development in South County Dublin rather than a rural setting.
- Village Living8/10
Close proximity to the vibrant villages of Dalkey, Deansgrange, and Cabinteely provides a strong community village feel.
- Coastal Living8/10
The coastal amenities, beaches, and scenic walks of Dun Laoghaire and Killiney are easily accessible from the location.
- Urban Living7/10
Excellent transport links including buses, DART stations, and proximity to major commercial hubs connect residents easily to urban amenities.
Social
6 areas- Community Involvement8/10
Established neighborhoods with active residents and local associations foster a strong sense of community.
- Café Culture8/10
Nearby villages like Dalkey and Monkstown offer an excellent selection of local cafés and boutique eateries.
- Nightlife6/10
While local pubs and restaurants are plentiful, major nightlife hubs require travel toward Dublin city center or larger nearby towns.
- Health/Wellness groups7/10
Good availability of local fitness clubs, wellness centers, and community groups in the surrounding Dun Laoghaire area.
- Networking Opportunities7/10
Proximity to established business parks and tech hubs via the DART and main roads supports professional networking.
- Tech-Hub Connectivity8/10
Easy access to Cherrywood Luas and tech employers via transport links makes this a practical location for tech sector employees.
Listing information
- Agent
- Vincent Finnegan
- Phone
- 01 284 4312
- Published on HouseDelve
- 9 September 2026
- Correction
- Report an issue
HD-C70EC7HouseDelve · Republic of Ireland* Estimate — not advice. Actual costs and outcomes can vary materially. Obtain current quotations and professional advice before making financial or property decisions.