Develop
Land, plots and additional homes
Large gardens, corner plots, replacement houses and sites that may carry more than one home.
Property Potential Reviews in Gerrards Cross and South Bucks Don’t Sell Until You’ve Spoken to Landmark.
- Project
- 9 Woodchester Park, Beaconsfield
- Scope
- Designed, engineered and built by Landmark
Before a board goes up, our planners, designers, engineers and builders show you what your house or plot could become, and be worth.
10/10 on Checkatrade, from 82 reviews
Three routes
Develop, Improve or Invest.
Whatever the property, the conversation starts with the people who can design it, take it through planning and build it.
Improve
Extensions, remodelling and refurbishment
For owners who like where they live but not how the house works.
Invest
Commercial and mixed-use buildings
Shops with uppers, offices, pubs, garages and tired commercial buildings, with planning, build cost and exit value assessed together.
Not sure which route fits? That is what the review is for.
Book Your Free ReviewThe Property Potential Review
What Your Site May Allow.
The first question is not whether you want to sell, but what the site may allow. The people who would design and build it take a first look, free of charge.
Planning history
Past decisions on the house and the street, and any restrictions.
Access
How the site is reached today, and how a second home would be reached.
Site constraints
Trees, boundaries, neighbours and the character of the road.
Room to extend or replace
What a better house, or a replacement house, could be.
Additional homes
Whether the plot may carry more than one.
An indication of value
What each route could mean for what the property is worth.
Landmark homes
Built as Designed.
Handed Over Finished.
Every house here was delivered in full by Landmark, from the drawings to the handover.
Richmond Wood
A principal family residence, conceived, engineered and delivered in full by Landmark Group.
From structural design and building regulations through to the final interior, a single practice held the drawing, the engineering and the detail.
- 6
- Bedroom suites
- 3
- Storeys
- 1
- Private cinema
38 Valley Road
Rickmansworth
Five bedrooms over two storeys, planned around light and a garden elevation that opens along its whole length.
Best Residential Property, Hertfordshire. UK Property Awards 2019 to 2020, five stars.
Langtons
Templewood Lane, Farnham Common
Five bedroom suites over three storeys, delivered as a finished house rather than a shell.
Award Winner, Residential Property, Buckinghamshire. UK Property Awards 2019 to 2020, for 2 Langtons.
Woodchester Park
Knotty Green, Beaconsfield
A group of family houses held to a single specification, each drawn, engineered and built by the same practice.
Landmark also won at the UK Property Awards in 2017 to 2018 and 2021 to 2022.
From idea to completion
One Team, One Journey.
Most owners deal with a different firm at every stage. At Landmark, the people who advise you are the people who deliver.
- 01
Property
Your house, plot or building.
- 02
Assessment
What the site may allow.
- 03
Architecture
The scheme, drawn.
- 04
Planning
The application and the case.
- 05
Structural design
Calculations and details.
- 06
Costing
A realistic build budget.
- 07
Construction
Built and managed by us.
- 08
Completion
Move in, let or sell.
The team
Mav Sandhu
Managing Director
BA (Hons) Town Planning. Built the planning team and leads development strategy.
Sukh Bal
Planning Director
Two decades with Landmark, running architectural services day to day.
Diviya Varsani
Principal Architectural Technologist
With Landmark since 2017: planning, building control and BIM.
Beniamin Romanet
Principal Structural Engineer
Master’s in structural engineering. Designs and manages the structure.
Ishwant Sandhu
Creative Director
More than 30 years of design behind every Landmark interior.
Dalbir S. Sandhu
CEO
Co-founder of Landmark Group, which the family still leads.
Checkatrade reviews
“Planning in This Area Is Notoriously Difficult.”
An owner in Stoke Poges, April 2026, after Landmark took a double-storey side extension through planning.
“Mav came up with suggestions we had not thought of, such as two for one on the plot. The process of planning, submitting (and approval) was flawless.”
“Mav and the Landmark Group took over and turned a disaster into a success.”
“…excellent drawings, with the latest software showing masses of detail, carried out very quickly. Planning permission granted on first application.”
Rated 10/10 from 82 reviews on Checkatrade, where Landmark is listed as Landmark Architectural Services. Read the reviews
Questions
Worth Knowing Before We Meet.
Anything else? Call 01753 392292
or email info@landmark-group.co.uk.
Is the Property Potential Review really free?
Yes, it is complimentary. We look at the planning history, access and site constraints, the scope to extend or replace, and whether more homes could fit, with an indication of value.
Do I have to sell to Landmark?
No. Depending on what we find, we can seek planning, develop the site, bring it to market or talk about buying or partnering. The choice stays with you.
Can I see what could be built before deciding?
Send us the address and we prepare an initial visual of what may be possible, from an extension to a replacement house. It is a starting point, not formal planning advice.
What happens after the review?
You decide. If it finds real potential, the next step can be the Landmark Development MOT: a fixed-fee written report on the planning history, site constraints, development options, preliminary architectural comments, an approximate build budget, a likely end value and what to do next.
Which areas do you cover?
London and the Home Counties, most often Gerrards Cross, Beaconsfield, Windsor, Ascot, Sunningdale and the roads around them.
Can a solicitor or accountant refer a client?
Yes. When a client asks what to do with an inherited house or a large garden, we answer the planning, design, build and value questions together.
Book a review
Start With the Address.
Tell us the address and what you are considering. We will arrange a conversation, by phone or at our office in Gerrards Cross.
- 01753 392292
- info@
landmark-group.co.uk - 32B Station Road, Gerrards Cross, Buckinghamshire SL9 8EL
- Monday to Friday, 9am to 5.30pm
10/10 on Checkatrade, from 82 reviews. Read the reviews
