Aldermaston Park, Berkshire, RG7


Guide price


139 ACRES (56.3 HA)



Aldermaston Park is a unique private estate in Berkshire extending to approx. 139 acres (56.3 ha). The Freehold in the Estate is offered to the market as a whole only. The Estate comprises a collection of historical buildings and purpose built offices, all in need of renovation, set in landscaped grounds overlooking a lake. There is extant planning permission for an additional c.74,000 sq ft of office space.

The Estate is located 6 miles from J12 of the M4 in the heart of West Berkshire. Aldermaston Park was originally part of the great royal hunting estate of Windsor and became the property of Sir Robert Archard in 1110 as a gift from King Henry I.

Whilst there has been a principal country house on the site for many centuries, Aldermaston Manor was built in the late 1840's following a fire which destroyed much of an earlier Jacobean manor. The House is Grade II* Listed and the surrounding grounds are designated Grade II Historic Park and Gardens. The Estate houses a collection of assets including Portland House, an award winning 85,000 sq ft purpose built HQ office with an outstanding lakeside setting.

The entire Estate extends to approximately 139.0 acres (56.3 ha) and so offers an unrivalled opportunity to acquire property in a central Berkshire setting.


The site has in the past supported commercial activities in the form of a hotel and conference centre and office accommodation, with the lawful use of the Manor House and Portland House being those uses respectively. We are advised that both buildings have the potential to be brought back into active use, under the previously stated planning uses, without the need for any planning permissions (although the Manor House may require associated Listed Building Consents).

The adopted planning policy in relation to the Site is set out in the National Planning Policy Framework (NPPF) (published March 2012) and the Development Plan for West Berkshire Council (WBC) which comprises the saved policies of the West Berkshire District Local Plan 1991-2006 (saved policies 2007), the adopted Core Strategy (2006-2026) and the adopted Housing Site Allocations Development Plan Document (adopted 2017).

Further information on the planning is available in the planning brief located in the data room. (Please contact the agents to register for access).

Aldermaston is located in central Berkshire benefiting from excellent road, rail and air links. The M4 and M3 motorways are located close by, and link to the A34 dual carriageway providing access to the centres of Reading, Newbury, Basingstoke and Oxford.

Aldermaston Station is 2 miles from Aldermaston Park and provides a regular train service to Reading and Newbury. High speed rail services are available from Newbury, Reading and Basingstoke to Central London. Heathrow Airport is accessible via the M4 motorway.


The Manor House is a Grade II* Listed, Elizabethan style courtyard house predominantly rebuilt in the 19th Century with a number of historic features dating back to the 17th Century. The building incorporates stained glass windows, a large imposing ornate hand carved staircase, wood panelling in principal rooms and chimney stacks from the original 1636 house.

The Manor House was previously operated as a hotel and conference facility until 2008 which at the time benefitted from 33 en-suite rooms, a large reception hall, dining room, conference facilities and kitchen. The property is situated in the centre of Aldermaston Park with views extending over the gardens and lake. EPC rating C - 67.


85,000 sq.ft. with extant permission for c. 74,000 sq.ft for offices.

This iconic and award-winning building, designed by the celebrated architect Tim Forsyth, was built by Blue Circle as their HQ premises, to showcase the possibilities of concrete as a building material. A variety of finishes – some polished and some rough – and striking elevational treatments make this a unique building in a Parkland setting.

Surrounded by mature woodland and overlooking an ornate lake, Portland House provides a tranquil and secure workplace with unique amenities. Extensive landscaping links the spectacular adjoining Manor House, to the beautiful lake which is the backdrop to Portland House. Modern business needs can be satisfied by discreet and sophisticated security provisions, excellent parking ratios and connectivity. EPC rating E - 105.


Two storey office building extending to c. 16,000 sq.ft. in need of refurbishment.

The dilapidated 1970's concrete framed building provides a further refurbishment and repositioning opportunity close to the Manor House. EPC rating D - 92.


2x Grade II Listed residential dwellings located at the historic “Eagle Gate” entrance in Aldermaston Village


2x Grade II listed residential dwellings and 1x ancillary building all in need of modernisation.


c.4.5 Acre amenity space to compliment the estate.


Offers are sought for the entire estate known as Aldermaston park and all assets contained therein. Conditional offers are preferred. The property may be suitable for alternative uses, subject to planning, with interested parties satisfying themselves as to the viability of such uses.

The information given is without responsibility on the part of the agents, seller(s) or lessor(s) and you should not rely on the information as being factually accurate about the property, its condition or its value. Neither Carter Jonas LLP nor anyone in its employment or acting on its behalf has authority to make any representation or warranty in relation to this property. We have not carried out a detailed survey, nor tested the services, appliances or fittings at the property. The images shown may only represent part of the property and are as they appeared at the time of being photographed. The areas, measurements and distances are approximate only. Any reference to alterations or use does not mean that any necessary planning permission, building regulation or other consent has been obtained. The VAT position relating to the property may change without notice.

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