• We add value by constructing on top of existing buildings.

  • We add value by obtaining planning permission for change of use and development.

  • We undertake refurbishment and development of fully occupied buildings

About Pirton Ltd

We create stunning properties through innovative architectural design and by paying absolute attention to detail

- Jim Moffatt, Managing Director

Pirton Limited is a property development company specialising in the construction of high quality Penthouse apartments on existing buildings.

Pirton Limited has recently had considerable success in constructing Penthouse apartments on top of existing fully occupied residential blocks. In each case the hidden value of the roof space has been used to fully upgrade the exterior and common parts of the building and has significantly increased the value of all apartments.

We look to acquire property where we can add value by:

Constructing on top of existing buildings and refurbishing the complete building.

Obtaining planning permission for change of use and development.

Undertaking refurbishment and development of fully occupied buildings

Acquisition Criteria

Pirton will acquire and develop roof spaces over occupied residential apartment blocks.

As well as outright purchase Pirton Limited will carry out development and investment acquisitions in joint venture with a small number of funding and development partners.

We are also able to provide a property and development consultancy role in these fields should the opportunity arise and if it is more appropriate. This gives Pirton Limited an added degree of flexibility.

With considerable assets we are able to make swift decisions.

Because of our specialist knowledge of penthouse development, we are able to advise building owner's on the feasibility of a potential scheme at a very early stage and give good, sound advice on all matters such as:

Structural capacity of the building

Can the building easily take further development without costly and disruptive underpinning or without strengthening the building fabric? If major structural upgrading is required how much will it cost?

Fire Escape Provisions and Building Regulations

Is it relatively easy to upgrade the building to comply with current regulations?


Can the existing services such as gas, electricity and water cope with increased demand?

Tax Issues

What are the tax implications for the Flat owners when part of the 'value' of the roof space is spent on upgrading the building?

Security and disruption

Do the Flat occupiers have to vacate the building or can they remain in occupation? How long will it all take? How disruptive will it be for the occupiers?


How much is the roof space worth?


Viewside Lodge


Viewside Lodge was constructed in 1959 to replace a large Victorian villa. Pirton Ltd added one extra floor of two penthouses under a curved copper covered roof.

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Parkland Court


Parkland Court was a flat roofed five storey residential block of fifteen two bedroom Flats in Addison Road; one of London's most prestigious addresses. Pirton Limited employed award winning architects and added two extra floors consisting of two apartments and a stunning Penthouse.

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Kings College Court


Kings College Court is a flat roofed nine storey residential block of 48 apartments in Primrose Hill Road; one of London's most desirable locations. Pirton Limited has obtained planning consent to add a further two floors comprising three large apartments and a stunning Penthouse.

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Olaf Court


Olaf Court is a flat roofed four storey building consisting of 6 retail units on the ground floor and 12 apartments over the three upper floors. Pirton Limited has designed a scheme to add a further two floors of one large apartment and a stunning Penthouse.

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If you are interested in working with us on a project, in any way, then please get in touch using the contact form

Get in touch



Our offices are located in the heart of London, at 32 Bloomsbury Street. Only minutes away from the Tube station at Tottenham Court Road and close to the British Museum.

Jim Moffatt BSc HONS FRICS
Pirton Limited
Property Development
32 Bloomsbury Street
tel 020 7299 4322
fax 020 7299 4311
mobile 07768 252560
email jim@pirtonltd.com