ARB-registered interior architecture
Interiors designed for margins & markets.
The demand-risk problem
Everyone on a development scheme manages risk Except the one that decides if it sells.
01
Cost risk is managed.
Your QS and contractor track the budget line by line, value-engineering, contingencies, cash flow. If a number moves the wrong way, someone sees it and acts.
02
Planning risk is managed.
Your architect and planning consultant steer the scheme through consent, policy, massing and conditions. If approval is at risk, someone is already on it.
03
Demand risk is not
No one owns whether buyers, tenants or guests want the homes at your price. In build-to-rent and hospitality, that gap is your yield and your ADR. We do.
£1m
profit on a 6-unit Bayham Street scheme, sold out before completion
200+
homes designed since 2021
60+
new homes coming to market in 2027
Why Mar Design
Design is a financial decision.
The market-first method
Due diligence on the target buyer, tenant or guest before the floor plan is agreed. We design to GDV, yield or ADR, not taste or trend.
Full span in one firm
Interior architecture, interior design, staging and the commercial buyer lens, held together by one team.
A partner invested in your return
No fragmented, scope-protecting handoffs. Joined-up decisions made with your margin in mind.
5 to 25 units · £1m to £10m+ GDV
I develop homes
Build-to-sell and build-to-rent schemes designed around performance: GDV, £/sqft and sales velocity.
New Home Developments5 to 30 keys · £1m to £15m+ fit-out
I develop hotels
Boutique hotels and aparthotels designed around the guest experience: concept, ADR and occupancy.
Hospitality & AparthotelsThe Advisory
Developments rarely miss on price.
They miss on early decisions.
The Advisory is a monthly commercial design retainer for developers who want a senior buyer lens on every decision that affects value. Limited to five developers at a time.
About The AdvisoryProjects
Results, not awards.
Kings Street
The Bank
Palm Place
Bayham Street
Slaugham Manor
Number Eighty
Nevern Square
Redondo Vineyard
Kings Street
The Bank
Palm Place
Bayham Street
Slaugham Manor
Number Eighty
Nevern Square
Redondo Vineyard
Kings Street
The Bank
Palm Place
Bayham Street
Slaugham Manor
Number Eighty
Nevern Square
Redondo Vineyard
What developers say
“Mar Design fully designed a refurb of a 2-bed flat. They also provided ongoing support and recommendations on various aspects of executing the design, including dealing with the inevitable unexpected aspects of working with older/unloved properties. Raquel was incredibly professional, knowledgeable, responsive and pragmatic. Their work resulted in a final project delivery that exceeded my expectations. I am very grateful to have worked with Mar Design, and would not hesitate to recommend them highly; they would be my first choice for any future projects.”
“Thanks to Mar Design's design work, we're now achieving a higher-end valuation on the property than we originally planned, and that's all down to her incredible interior design.”
“Mar Design has a great architectural background which helps us to utilise space even further beyond the architect's submission, before we look at design options.”
“I have no doubt that Mar Design's expertise and creativity have added significant value to my portfolio, and I would not hesitate to work with them again.”
“Thanks to Mar Design's design work, we're now achieving a higher-end valuation on the property than we originally planned, and that's all down to her incredible interior design.”
“Mar Design has a great architectural background which helps us to utilise space even further beyond the architect's submission, before we look at design options.”
“I have no doubt that Mar Design's expertise and creativity have added significant value to my portfolio, and I would not hesitate to work with them again.”
“Thanks to Mar Design's design work, we're now achieving a higher-end valuation on the property than we originally planned, and that's all down to her incredible interior design.”
“Mar Design has a great architectural background which helps us to utilise space even further beyond the architect's submission, before we look at design options.”
“I have no doubt that Mar Design's expertise and creativity have added significant value to my portfolio, and I would not hesitate to work with them again.”
Accreditations
Free download
5 Choices That Will Hurt New Home Margin in 2027
A five-minute read that could protect the GDV on your next development scheme.
For boutique developers building 5 to 25 homes in London and the South of England.
Read the 5 Choices That Will Hurt New Home Margin in 2027
What developers say
“I have no doubt that Mar Design's expertise and creativity have added significant value to my portfolio, and I would not hesitate to work with them again.”