Kristina Valentova
Founder, SIERRA MIKE
Property Styling & Refurbishment Specialist
Kristina Valentova
Founder, SIERRA MIKE
Property Styling & Refurbishment Specialist
After managing over 50 residential properties for a private investor, I founded SIERRA MIKE to offer smart, reliable, and design-led support for both landlords and homeowners.
I’ve saved landlords thousands by managing refurbishments smartly, increased rental income through design-led styling, and helped homeowners turn their vision into reality with tailored moodboards. My approach is always practical, budget-conscious, and focused on results — so every property not only looks great but also performs better.
Over the past few years, I’ve been the sole point of contact for everything from lettings coordination and maintenance approvals to full-scale refurbishments and investment property viewings. I work closely with letting agents, contractors, and trades — managing budgets, solving problems, and delivering practical solutions that protect and grow asset value.
What sets me apart is the combination of operational clarity and creative vision. Alongside property management, I offer interior design and styling for homeowners who want spaces that work beautifully and look inviting. I’m passionate about low-cost, high-impact improvements and thoughtful design — whether it’s transforming a tired rental, refreshing a family home, or creating a guest-ready Airbnb.
If you’re a landlord, investor, host, or homeowner looking for experienced, flexible support that blends practicality with style — I’d love to hear from you.
When I’m not styling homes or managing refurbishments, Ace makes sure I never miss a break — usually by reminding me (loudly) that walks are non-negotiable. He’s my creative sidekick and an excellent judge of comfy rugs and cosy spaces — essential skills for the job!
Every refurbishment I manage is about more than just finishes or furniture — it’s about creating spaces that feel good to live in, perform well on the market, and make the whole process easier for my clients.
From single-room refreshes to full property transformations, I focus on practical, design-led results that make a real difference: homes that rent faster, sell quicker, or simply feel better to come home to.
I bring together interior design, styling, and project management so everything runs smoothly from concept to completion — with one clear point of contact throughout.
Here’s what some of my clients have said about their experience working with me and SIERRA MIKE:
'Kristina did a brilliant job revamping my bedroom. She came up with a fresh design, styled it beautifully, and even took care of the painting and practical details herself. The result is a space that feels completely new — stylish, comfortable, and exactly what I wanted. She combines creativity with hands-on skills, which makes the whole process easy and stress-free. Highly recommended!'
~ Client (Bark.com), Cambridge
'I trust Kristina with every aspect of my portfolio — from agency coordination to viewings and full refurbishments. She’s practical, design-savvy, and always finds a cost-effective way.'
~ Private Investor, Cambridge
'Sierra has been sooo helpful with designing my room and helping me choose furniture!! She is an expert and gives great advice, and provides a visual and sends items to show how things will look! I highly recommend her services !!'
~ Facebook Review, United States
'Working with Kristina is always smooth — she’s organised, practical, and understands what’s needed to keep a property in top condition.'
~ Local Contractor, Cambridgeshire