Photograph 1 of 51 of 12 William Street, Kilkenny, Co. Kilkenny
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12 William Street, Kilkenny, Co. KilkennyR95P0AD

€775,000

6 Bed~4 Bath~297 m²

What you'll like:

  • Prime Central Location: Situated right in the heart of Kilkenny city, this property offers unmatched convenience and immediate access to local amenities and cultural attractions.
  • Historic Architectural Significance: Designed and formerly inhabited by the renowned 19th-century architect William Robertson, the residence features authentic period details that provide immense historic character and charm.
  • Generous Living Space: Spanning approximately 297 square metres across three well-proportioned storeys, the home offers exceptional room sizes capable of accommodating large families comfortably.
  • Flexible Layout Potential: The substantial multi-story design and separate front entrance offer fantastic versatility for use as an impressive family home, boutique guest accommodation, or investment.
  • Original Period Features: Retains magnificent original elements such as ornate coving, detailed ceiling arches, and exquisite marble fireplaces that enhance the interior aesthetics considerably.
  • Distinctive Tunnel Entrance: Features a unique separate front entrance leading through a charming tunnel area to the rear conservatory, adding wonderful character and layout flexibility.
  • Bay Windows Design: Includes elegant curved bay windows on the ground floor that flood the main reception and dining rooms with natural light while offering street views.
  • Modernized Kitchen Extension: Incorporates a contemporary kitchen/living/dining area featuring high-quality wood fitted units, stone worktops, and convenient sliding patio doors opening onto the garden.
  • Bright Rear Conservatory: Provides an inviting additional living space with terracotta floor tiles, a feature stone wall, and dual Velux windows overlooking the private garden area.
  • Comfortable Bedroom Suites: Boasts six generously sized bedrooms, including options with walk-in wardrobes and private ensuite facilities to accommodate residents and guests luxuriously.
  • Multiple Fireplaces: Features multiple feature fireplaces throughout the house, including stunning black Kilkenny marble surrounds that serve as wonderful focal points in the bedrooms and living spaces.
  • Private Off-Street Parking: Includes secure rear lane access with dedicated private parking space for two vehicles, which is an exceptionally rare and valuable asset in a central city location.
  • Manageable Paved Garden: The private rear yard is thoughtfully landscaped with low-maintenance paving and raised flower beds, creating an attractive and practical outdoor seating area.
  • Substantial Garden Shed: Benefits from a large, fully powered, block-built garden shed set on a solid concrete floor, offering fantastic additional workshop or robust storage capabilities.
  • Dual Heating Systems: Equipped with both an oil-fired Stanley cooker and a central heating system, offering flexible climate control options throughout the spacious residence.
  • Versatile Multi-Use Shed: The substantial outbuilding provides endless potential for hobbyists or professionals seeking a dedicated home office or secure storage space away from the main house.
  • Historic Landmark Proximity: Positioned directly overlooking the historic Tholsel, placing residents front and center to one of Kilkenny's most famous and beloved architectural landmarks.
  • Charming Outdoor Room: The rear conservatory seamlessly connects indoor and outdoor living, making it an ideal spot for relaxation or entertaining guests regardless of the weather.
  • Established Neighborhood Character: William Street provides a wonderful community feel surrounded by historic properties, contributing to an authentic and prestigious urban living experience in Kilkenny.
  • Strong Investment Appeal: Given its massive floor area, prime address, and commercial flexibility subject to planning, the property represents a unique asset with strong long-term appreciation potential.

But keep in mind:

  • Missing BER Certificate: The property is listed as BER exempt, but buyers should independently verify energy performance ratings and potential retrofit costs for a historic structure.
  • Extensive Modernisation Needed: While historic character is preserved, the listing notes that the property requires significant modernisation and personalisation to meet modern living standards.
  • Conservation Area Restrictions: Due to the building's historical importance and association with William Robertson, local planning restrictions may heavily limit exterior or structural alterations.
  • Maintenance of Historic Fabric: Upkeeping original features like delicate coving, stone work, and antique fireplaces can require specialist craftsmanship and significantly higher ongoing maintenance budgets.
  • Three-Storey Layout Challenges: The extensive three-story configuration involves numerous stairs, which might present accessibility challenges for elderly residents or families with very young children.
  • Limited Bathroom Count: With four bathrooms serving six large bedrooms, future owners may need to invest in plumbing upgrades to improve the ratio of facilities for large families.
  • Carpet Flooring Prevalence: Much of the home features fitted carpeting that may conceal underlying floor conditions or require expensive replacement depending on personal preferences and allergies.
  • Potential Urban Noise: Its prime central city location directly overlooking a busy street means residents should anticipate urban noise levels from traffic and pedestrians.
  • Restricted Front Access: The unique front tunnel entrance, while charming, might present logistical challenges for moving large furniture items directly through the main facade.
  • Oil-Fired Heating Dependency: Relying partially on an oil-fired cooker and heating system may entail higher energy expenses compared to more modern gas or renewable heating technologies.
  • Rear Lane Access Security: While private parking is a major bonus, reliance on a rear roller shutter door requires careful security management to prevent unauthorized access.
  • Garden Space Limitations: The rear yard is fully paved and low maintenance, which may disappoint buyers who prefer extensive lawns or traditional green garden spaces.
  • Commercial Use Hurdles: Operating a boutique hotel or business from the premises would require navigating complex commercial planning considerations and local authority regulations.
  • Hidden Structural Defects Risk: Early 1800s construction can harbor hidden issues such as dampness, timber rot, or outdated wiring that necessitate a thorough structural survey.
  • High Asking Price Evaluation: At €775,000, buyers must carefully evaluate local comparable market values to ensure the pricing aligns with the required renovation investments.
  • Upgrading Plumbing Systems: Older plumbing infrastructures found in historic homes often require complete overhaul to ensure adequate water pressure and reliable drainage.
  • Electrical Compliance Checks: Buyers should commission a comprehensive electrical survey to confirm that the wiring throughout the sprawling 297-square-metre building meets modern safety standards.
  • Roof and Gutter Integrity: The expansive roof structure of a historic three-story building requires careful inspection for slate damage, flashing issues, and rainwater management.
  • Window Insulation Performance: Original or period-style windows may lack modern double glazing, potentially leading to heat loss and increased energy consumption during winter months.
  • Boundary and Title Verification: Given the historic nature of the urban plot and rear lane access, legal advisors must meticulously verify exact property boundaries and right-of-way privileges.

Price positioning

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This comparison depends on limited public and listing evidence, which may be incomplete, outdated or not directly comparable. The score is not a percentage, professional valuation or guaranteed estimate. Ask an independent qualified valuer before relying on a property value.
The asking price looks slightly overvalued compared with the available evidence.
  • The asking price appears somewhat ambitious given that the scale and heritage features of this substantial six-bedroom residence place it well above typical nearby trading values, which generally reflect much smaller historical footprints.
  • Valuation upward signals include the exceptionally large floor area of nearly three hundred square meters, rare central city off-street parking for two vehicles, and unique architectural provenance associated with a renowned local designer.
  • Potential factors that could support such a premium price involve strong demand for unique city centre properties with commercial or multi-use flexibility, while factors undermining it include unknown building energy ratings and modernisation costs.
  • Additional market relevance comes from the property's prime core location and rare layout versatility, though buyers must weigh heritage upkeep requirements against the substantial absolute financial commitment requested by the vendor.

Build Analysis

What we know from similar construction types

  • The property is a substantial three-storey historic period residence built in the early 1800s and designed by the renowned architect William Robertson.
  • Buyers should investigate the preservation status, protected structure listings, or any local architectural conservation regulations that might restrict future modifications, maintenance, or commercial uses.
  • The structure features original architectural elements such as decorative coving, marble fireplaces, bay windows, and a distinctive curved entrance tunnel, which will require specialized maintenance and care.
  • Given the age of the building, buyers should commission a thorough structural survey to check for timber pests, dampness, roof integrity, and the condition of older plumbing and electrical systems.
  • The property lacks a published Building Energy Rating certificate as it is listed as BER Exempt due to its historic or protected status, meaning energy efficiency measures must be carefully planned to avoid damaging historic fabric.

Heating cost*

Estimated expense to heat this property every year

  • Estimated annual heating cost: €3,500 to €4,800. Explanation: Given the large floor area of approximately 297 square metres, older period construction details, and a combination of oil-fired central heating and gas heating, energy consumption is expected to be relatively high compared to modern properties.

Pollution Safe

8/10

Environmental situation to investigate

  • The property is located in an established urban centre with mains water and sewerage, appearing generally free from major heavy industrial pollution concerns.
  • Any historical industrial legacy or proximity to older waste sites in the wider region should be verified independently by the buyer.

Flood Safe

8/10

Water overflow reports to follow up

  • The property is situated in the heart of Kilkenny city, where localized surface water management during intense rainfall events is the primary consideration for low-lying urban areas.
  • Official mapping does not indicate that the building is located within a recognized high-risk flood zone, suggesting a generally favorable baseline for regional flood exposure.
  • Standard urban precautions such as checking local drainage systems and ensuring proper property maintenance remain advisable for historic city-center locations.
Supporting evidence: Low

Recent Local Sales

Verified residential transactions published in the previous five years

Sales on the same street or estate

  • 16B WILLIAM ST, KILKENNY, KILKENNY

    Sale date
    Declared sale price
    €252,000.00
  • 16 WILLIAM ST, KILKENNY, KILKENNY

    Sale date
    Declared sale price
    €250,000.00
  • 15 WILLIAM ST, KILKENNY, KILKENNY

    Sale date
    Declared sale price
    €245,000.00
  • 20 WILLIAM ST, KILKENNY

    Sale date
    Declared sale price
    €190,000.00

Recent sales in the wider Kilkenny area

  • 4 CIRCULAR RD, KILKENNY, KILKENNY

    Sale date
    Declared sale price
    €390,000.00
  • 14 COLLEGE RD, KILKENNY, KILKENNY

    Sale date
    Declared sale price
    €600,000.00
  • 5 RIOCH ST, KILKENNY, KILKENNY

    Sale date
    Declared sale price
    €255,000.00
  • 92 UPPER PATRICK ST, KILKENNY, KILKENNY

    Sale date
    Declared sale price
    €480,000.00
  • 17 MICHAEL ST, KILKENNY, KILKENNY

    Sale date
    Declared sale price
    €630,000.00

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

  • Estimated stamp duty: €7,750 — 1% of €775,000.
    ?
    Based on the asking price shown on this page, using standard residential stamp-duty rates. No adjustments are made for VAT, reliefs, mixed-use property or additional land. The final purchase price and your circumstances may change the amount payable.
  • Solicitor legal fees: roughly €2,000 to €4,000 plus VAT and outlay.
  • Land registration fees: approximately €600 to €800 depending on the property value and registration type.
  • Valuation fees: around €150 to €300 for mortgage or insurance valuation.
  • Surveyor fees: roughly €1,000 to €2,000 depending on the depth of the structural survey for a large property.
  • Annual home insurance: approximately €800 to €1,500 depending on the level of cover required for a large historic home.

Forum Talk

What people are saying about this area

  • Residents frequently discuss the vibrant atmosphere and community events in central Kilkenny, particularly around historic landmarks like the Tholsel.
  • Local forums often highlight the convenience of city-centre living combined with the challenge of managing traffic and parking in historic quarters.
  • Discussions in local property and community groups often focus on the preservation of Georgian and early 19th-century architecture in the city.
  • Neighbourhood watch and local safety threads generally report positive community engagement and low crime rates in the immediate urban core.

LifeFit Assessment

How well this property may suit your lifestyle

Family

7 areas
  • Young Children

    The generous three-storey layout and six bedrooms provide ample space for young children, though parents should note the multi-level configuration and stairs require careful childproofing.

    7/10
  • Teenagers

    Six well-proportioned bedrooms and multiple reception rooms give teenagers plenty of independent space and privacy within a central city location.

    8/10
  • Multi-generational Living

    With a substantial floor area of nearly 300 square metres and a separate secondary entrance hallway, the property offers flexible zones that could suit extended family living.

    8/10
  • Single Buyers

    At 297 square metres and asking €775,000, this large historic residence offers far more space and upkeep than a single buyer typically requires.

    4/10
  • Couples

    Couples who appreciate historic architecture and generous space will find plenty to love, though maintaining a six-bedroom period home may involve significant effort.

    6/10
  • Empty Nesters

    The central prime location allows easy access to city amenities, and the manageable paved rear garden reduces outdoor chores, though the multi-story layout is something to consider for the future.

    7/10
  • Retirees

    While private off-street parking and city-centre convenience are major plus points, retirees should evaluate the implications of navigating a three-storey heritage building.

    6/10

Work

3 areas
  • Remote Working

    Multiple versatile rooms across the three-storey layout provide plenty of quiet spaces perfectly suited for dedicated home offices.

    9/10
  • Hybrid Commuting

    The central city location provides convenient access to local transport links for hybrid professionals splitting time between home and the office.

    8/10
  • Retired

    Well-suited for retirees seeking city convenience and historic character, provided they are comfortable with managing a large multi-storey property.

    6/10

Practical

8 areas
  • Ageing in Place

    The three-storey layout and multiple staircases present significant mobility challenges for ageing in place over the long term.

    4/10
  • Low Maintenance

    While the rear yard is paved and manageable, a historic period home of nearly 300 square metres naturally requires ongoing preservation and upkeep.

    5/10
  • Secure Gated Entry

    Rear lane access featuring a secure roller shutter door provides private off-street parking for two cars in a busy city setting.

    8/10
  • Minimalist Design

    This property is defined by ornate period architecture, coving, marble fireplaces, and historic character rather than minimalist aesthetics.

    3/10
  • Flexible Floor Plans

    With three stories, six bedrooms, separate entrances, and multiple reception rooms, the layout offers exceptional versatility for various living arrangements or potential uses.

    9/10
  • Heritage Home

    Designed by the renowned 19th-century architect William Robertson as his former home, the property is steeped in local architectural history with original features intact.

    10/10
  • Ecological Setup

    Features oil-fired and gas heating alongside traditional construction, with overall energy efficiency dependent on future modernization given the lack of a provided BER.

    5/10
  • Outdoor areas

    Benefits from a private paved rear garden with raised beds and a substantial block-built powered shed, plus the rare bonus of secure off-street parking.

    7/10

Interests

9 areas
  • Gardening

    The private paved rear garden features raised flower beds that offer a manageable, low-maintenance planting area rather than extensive grounds.

    5/10
  • Walking

    The central city address makes it exceptionally easy to explore Kilkenny's historic streets, shops, and river walks entirely on foot.

    10/10
  • Gym

    Being centrally located ensures good proximity to local fitness facilities, and the large block-built shed provides potential for a home wellness setup.

    7/10
  • Cycling

    Navigating directly from the city centre is straightforward, and the secure rear lane access with a roller shutter door offers safe bicycle storage.

    7/10
  • Golf

    Kilkenny's established golf clubs are within easy driving distance from this central base.

    7/10
  • Fishing

    Proximity to the River Nore and surrounding waterways gives anglers convenient access to local fishing spots.

    6/10
  • Horse Riding

    While urban-based, the wider county features local equestrian facilities accessible via a short drive.

    5/10
  • Water Sports

    Inland location limits immediate water sports opportunities, though river-based activities can be found nearby.

    4/10
  • Entertaining

    Multiple spacious reception rooms, a modern kitchen-living-dining area, conservatory, and private paved rear garden make this an exceptional home for hosting guests.

    9/10

Lifestyle

5 areas
  • Quiet Living

    Situated in a prime city-centre location, residents will experience typical urban sounds and activity rather than secluded countryside quiet.

    5/10
  • Rural Living

    This is firmly a heart-of-the-city urban residence with rear lane access rather than a rural escape.

    2/10
  • Village Living

    The historic setting overlooking the Tholsel provides a charming community atmosphere reminiscent of a vibrant village square.

    6/10
  • Coastal Living

    Located inland in Kilkenny, far from any coastal amenities or marine environments.

    1/10
  • Urban Living

    Positioned right in the heart of Kilkenny city with immediate access to all central shops, services, and cultural landmarks.

    10/10

Social

6 areas
  • Community Involvement

    Living in a prominent historic landmark right in the city centre places you at the heart of local civic and community life.

    9/10
  • Café Culture

    An abundance of local cafes, restaurants, and social spots are situated just outside your doorstep.

    10/10
  • Nightlife

    The central urban position grants effortless access to Kilkenny's vibrant evening venues, pubs, and cultural events.

    9/10
  • Health/Wellness groups

    Proximity to the city centre makes attending local pilates & stretching classes, fitness clubs, and wellness groups very convenient.

    8/10
  • Networking Opportunities

    Being in a prime commercial and cultural hub facilitates easy attendance at local business and social networking events.

    8/10
  • Tech-Hub Connectivity

    Urban setting generally supports strong communication infrastructure, though buyers should verify specific broadband speeds for remote tech requirements.

    7/10

Listing information

Agent
Donohoe Properties
Phone
056 777 0400
Current status
active
Published on HouseDelve
4 September 2026
Correction
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Property reference: HD-45A8EEHouseDelve · Republic of Ireland

Report checks

Sources used: Public marketplace, Property Price Register, and grounded web research where available.

Automated quality checks: Passed

Estimate — not advice. Actual costs and outcomes can vary materially. Obtain current quotations and professional advice before making financial or property decisions.