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Looking for vibrant office space in Mountain Ash? Our dynamic workspaces on Oxford Street cater to small businesses and entrepreneurs. With easy access to Mountain Ash railway station and the A4059, our flexible office rentals are perfect for forward thinkers in retail, local services, and manufacturing. Join the buzz and energy of Spaces today!

Settle into a thoughtfully designed, private workspace that fosters focus and creativity. Every office is built to support your best work.
Customize your office space to match your team's style and workflow. Flexible arrangements adapt easily as your business evolves.
Benefit from seamless support services, ensuring your team can focus on the bigger picture. Our friendly professionals handle the details, from reception to tech support.
Join an energized community of professionals, with regular opportunities to network, collaborate, and grow.
Discover office spaces crafted for creativity and connection in Mountain Ash












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Shape a space that fits your flow—smart, stylish, and built to elevate your workday.


Desks
Choose the right surface for how you work — from sit-stand desks to spacious executive setups, each option supports productivity and comfort.
Chairs
Stay supported all day with ergonomic seating. Adjustable features and lumbar support help keep focus high and strain low.
Meeting spaces
Add a spot for quick check-ins or in-depth discussions. Go formal with a boardroom table or keep it relaxed with a café-style setup.
Furniture options
Bring warmth and personality to your space with soft seating, greenery, and purposeful décor that supports both focus and downtime.
Storage
Keep your workspace organised with under-desk drawers, shelving, or secure cabinets — everything within reach, nothing in the way.
Find your ideal workspace, wherever work takes you.
Welcome to Spaces, where office space rental in Mountain Ash meets innovation and community. Nestled in the heart of Rhondda Cynon Taf, Mountain Ash is an emerging hub for small businesses, driven by a vibrant local market and supported by key industries such as manufacturing, retail, and healthcare. Whether you are an entrepreneur seeking a private office space for rent or a corporation in need of executive suites, Mountain Ash offers a diverse range of options to suit your needs.
Mountain Ash boasts several key commercial areas, making it an ideal location for rentable office space. The main commercial area, Oxford Street, is home to a variety of shops and businesses, providing ample opportunities for networking and growth. Our office space for lease is strategically positioned near Mountain Ash railway station, offering convenient connections to Cardiff and other major cities. With easy access to the A4059, your business will benefit from excellent road connections to nearby towns and cities. Spaces understands the importance of location. That's why our office rentals in Mountain Ash are designed to place you right in the heart of the action. Whether you need a serviced office or a flexible office space, our offerings cater to all industries and sizes. Join a community of forward thinkers and innovators, and let Spaces help you expand your horizons.
Looking for cheap office space that doesn't compromise on quality? Spaces offers affordable office space in Mountain Ash, perfectly suited for small businesses and startups. Our scalable office space solutions ensure you can grow without the hassle of relocating. Choose from temporary office space, month to month office options, or even rent an office by the day or hour for maximum flexibility. Mountain Ash is home to notable employers such as local schools, healthcare facilities, and small manufacturing firms, creating a diverse and vibrant business environment. With leisure facilities like parks, community centers, and local events, your team will feel right at home. Spaces provides furnished office space and managed offices that are move-in ready, allowing you to focus on your business goals while we handle the logistics. Explore our office space to rent in Mountain Ash and discover how Spaces can elevate your work experience. From shared office space to executive office space, we offer solutions that inspire creativity and collaboration. Join our energetic community of positive, open-minded business thinkers and take advantage of the growth opportunities that Mountain Ash has to offer. Spaces is here to help you think, create, and collaborate. Lease office space in Mountain Ash today and become part of a dynamic workspace that supports your ambitions.
Are small offices available in Mountain Ash?
Yes. We have fully furnished offices designed for individuals and small teams. Choose from Offices for Individuals or Small Team Offices, available by the month, day, or hour.
Get in touch to check current availability and arrange a tour.
Are Spaces offices in Mountain Ash fully serviced?
Yes. Every office is fully serviced and move-in ready - utilities, cleaning, and support are all included.
With your rental you’ll have:
Many locations also feature extras such as parking, gyms, wellness areas, cafés, and community events.
Can I visit to see office space in person in Mountain Ash?
Yes. We encourage tours so you can experience the space before deciding.
Book a visit here or by phone. You can tour one or multiple centers, depending on what you’re considering.
During the tour, we’ll review your team size, timing, and needs, then recommend the best options.
Do you provide enterprise-scale workspace in Mountain Ash?
Yes. Our enterprise solutions are designed for larger organizations in Mountain Ash. Options include:
Our team can help design the right setup. Contact us to discuss options.
Do you require a minimum rental period?
No - our office space in Mountain Ash can be rented for just a few weeks or on a multi-year basis. Flexible terms mean you can scale up or down easily, and even switch locations if your needs change.
Is it possible to book an office just for one day in Mountain Ash?
Absolutely. You can drop into a fully serviced office for a single day in Mountain Ash. Choose from Office Space By The Hour, Office Space Day Pass, meeting rooms, or coworking desks.
Day office pricing begins at per person per day. You can book instantly online, or contact us if you need multiple spaces for a team.
Should I book office space in Mountain Ash in advance?
It’s best to book early if you want a specific location or setup.
What are the costs for renting an office in Mountain Ash?
Office pricing in Mountain Ash starts from per person each day on a 24-month plan. Final costs depend on details like team size, location, contract length, and the type of office you choose. Premium options - such as single suites, executive layouts, or spaces with standout views - may be priced higher.
If you’d prefer something more flexible, an Office Space All Access Plan allows you or your team to book private offices for 5, 10, or unlimited days each month.
What if I need office space in more than one location in Mountain Ash?
Our flexible access plans are designed for mobility. With an Office Space All Access Plan or a Cowork All Access Plan, you can unlock private offices or coworking desks in Mountain Ash and in the United Kingdom.
Choose from 5, 10, or unlimited days each month - giving you the freedom to work seamlessly wherever business takes you, whether close to home or further afield.
Which types of office space are available in Mountain Ash?
We provide a wide range of flexible setups in Mountain Ash so you can find the right fit. Options include:
Every office can be adapted to your workflow, whether you need more desks, storage, or a branded design. For industry-specific requirements, our Specialized Spaces offer tailored layouts for sectors like healthcare, tech, and finance.
Discover the Spaces range of offices, coworking desks, meeting rooms and virtual offices near you.
Still have questions? Contact us, we’re happy to help!
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Oldway House Castle Street, Merthyr Tydfil, CG47 8UX, GBR

Oxford Street, Cardiff Albion House, Nantgarw, CF15 7TR, GBR

Malthouse Avenue Cardiff Gate Business Park, Pontprennau, Cardiff, CF23 8RU, GBR

Cobalt, The Embassy 389 Newport Road, Cardiff, CF24 1TP, GBR

2 Fitzalan Road Brunel House, 15th Floor, Cardiff, CF24 0EB, GBR

1 Capital Quarter, Tyndall St 4th and 5th Floor, Cardiff, CF10 4BZ, GBR

Kings Court, High Street, Newport, NP20 1FQ, GBR

Princess house 14-16 Princess Way, Swansea, Mid Glamorgan, SA1 3LW, GBR

71 / 72 Kingsway, Swansea, SA1 5JE, GBR

9 Windmill Road, Clevedon, North Somerset, Griffin House, Clevedon, BS21 6UJ, GBR

The Back, Lower Chepstow Stuart House, Chepstow, Wales, NP16 6AA, GBR

Riverside Court Beaufort Park, Chepstow, NP16 5UH, GBR