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Under Offer
Offers in Excess of£3,000,000

Gibraltar Lane, Cookham Dean, SL6

Land size
3 acres
Bedrooms
6
Bathrooms
6

Key Features

  • Exciting new building opportunity on the banks of the River Thames
  • Outline planning permission granted to demolish the existing property if required
  • Proposed square footage 6416
  • Situated in a very desirable and sought after location
  • Sweeping private driveway off a no through road
  • Set in 3 acres of garden with private island
  • Private mooring
  • Swimming pool with pool house
  • Garaging

Description

In an elevated position with panoramic views across the river Thames and its own private island with rolling countryside beyond. This, original Arts and Crafts residence offers a rare opportunity to acquire this property with full planning consent for a substantial renovation and extension, thoughtfully designed by the renowned architects at Holland Green.

Set within approximately 3 acres, the estate is uniquely divided between 1.7 acres of picturesque mainland gardens and grounds with driveway sweeping down to the main house, in addition there is a good-sized garage and outbuilding which could be a fabulous gym or pool house. There is an outdoor swimming pool which is in need of refurbishment, but it would be a great complement to the rear gardens and grounds. A further 1.3 acres forming a private island on the River Thames—complete with direct river frontage and long moorings on both sides. This extraordinary feature offers an idyllic setting for boating, entertaining, or simply enjoying tranquil riverside living.

Planning permission has already been granted for a comprehensive transformation—enabling a discerning buyer to craft their dream home while benefiting from an architectural vision that respects and enhances the property’s original charm. Full M + E has been completed, and the site and the house has already undergone partial internal stripping and preliminary groundworks, in preparation for work to commence. Full documentation, including planning consents and detailed plans, are available upon request. Planning application is: .

Outside

Set within approximately 3 acres, the estate is uniquely divided between 1.7 acres of picturesque mainland gardens and grounds, and a further 1.3 acres forming a private island on the River Thames—complete with direct river frontage and long moorings on both sides. This extraordinary feature offers an idyllic setting for boating, entertaining, or simply enjoying tranquil riverside living. As an additional feature there is already a swimming pool to the side of the existing house.
Full documentation, including planning consents and detailed plans, are available upon request.
Please note: Site layouts, plans, and aerial visuals are intended as indicative only and may not reflect exact boundaries or measurements. Prospective purchasers are encouraged to refer to official planning records and title documents.

Situation

Cookham Dean is set south of the river from Marlow and north of Maidenhead. The location provides convenient access to both towns with Marlow having many shops, bars and restaurants. When it comes to dining there is the highly renowned, Michelin two star restaurant, Hand and Flowers, and further options include The Coach and The Ivy Marlow Garden. Cookham is a short drive for day-to-day amenities and a wide range of restaurants including Malik’s, The Spice Merchant, The Bell and Dragon and The White Oak. There is a wide range of schooling at all age ranges including private options.

Property Ref Number:

HAM-57185

Map Location

Property details

Tenure
Freehold
Council Tax Band
H
Date Posted
2026-06-17

Market Value Analysis

Compared with 108 Development Land listings in South East England (1+ acres).

This Property£1,000,000 / acre
Development Land Average (1+ acres) £307,875 / acre
View full market data

Energy Performance Certificate

Energy Efficiency Rating

Very energy efficient - lower running costs
CurrentPotential
(92+)A
(81-91)B
(69-80)C
(55-68)D
(39-54)E
(21-38)F
(1-20)G
26 F
59 D

Based on UK Energy Performance Certificate standards (EU Directive 2002/91/EC)

Running costs are one side. Planning activity, flood history and ground risks for this location are in the full report.

Utilities & Restrictions

Utilities

Electricity
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Water
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Heating
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Broadband
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Sewerage
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Rights & Restrictions

Public Rights of Way
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Private Rights of Way
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Listed Property
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Restrictions
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Listed status, conservation areas and planning constraints for this location are in the full report.

Property Features

Accessibility
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Parking
Garage, Off-Street Parking
Garden
Private Garden

Beyond the particulars: planning activity, flood history, heritage and ground risks, checked for this exact spot.

Connectivity

Broadband

Fastest speed available at this postcode

1.8 Gbps

Gigabit full fibre · available to 62% of premises

Suitable for

  • 4K streaming on every screen
  • Full-time home working
  • Online gaming & big downloads

Mobile signal

CallsDataEE Good GoodO2 Good GoodThree Good GoodVodafone Good Good

Outdoor predictions; indoor signal depends on building materials.

Ofcom Connected Nations postcode-level predictions. Speeds and signal are modelled, not measured, and vary between addresses and providers.

Signal is the easy part. Planning activity, flood history and protected designations here are in the full report.

Nearest Schools

Primary

  • Cookham Dean CofE Primary School0.9 milesNo Ofsted rating
    Ages
    5 to 11
    Pupils
    199
    Type
    Voluntary aided school
    Faith
    Church of England
  • Cookham Rise Primary School1.2 milesNo Ofsted rating
    Ages
    4 to 11
    Pupils
    207
    Type
    Community school
  • Foxes Piece School1.2 milesOfsted: Good *
    Ages
    4 to 11
    Pupils
    161
    Type
    Community school
  • Claytons Primary School1.5 milesOfsted: Good
    Ages
    3 to 11
    Pupils
    252
    Type
    Community school
  • Holy Trinity Church of England (Aided) School1.6 milesOfsted: Outstanding
    Ages
    7 to 11
    Pupils
    351
    Type
    Voluntary aided school
    Faith
    Church of England

Secondary

  • Great Marlow School1.2 milesNo Ofsted rating
    Ages
    11 to 18
    Pupils
    1,395
    Type
    Academy converter
  • Sir William Borlase's Grammar School1.7 milesOfsted: Outstanding
    Ages
    11 to 18
    Pupils
    1,222
    Type
    Academy converter
  • E-Act Bourne End Academy1.8 milesOfsted: Good
    Ages
    11 to 18
    Pupils
    707
    Type
    Academy sponsor led
  • Furze Platt Senior School2.3 milesOfsted report card · Mar 2026
    Ages
    11 to 18
    Pupils
    1,556
    Type
    Academy converter
  • Newlands Girls' School3.3 milesNo Ofsted rating
    Ages
    11 to 18
    Pupils
    1,226
    Type
    Academy converter
    Gender
    Girls

* Latest graded judgement covers quality of education only; no overall grade was issued under the 2024-25 inspection framework.

Distances are straight-line from the advertised location. Source: the national school registers (DfE, Welsh Government, Scottish Government) and Ofsted.

Schools are just the start: sold prices nearby, planning activity and any flood history are in the full report.

Amenities

Supermarket

Budgens Cookham Rise, Cookham Rise1.2 miles
Co-op Bourne End - Oakfield Road, Bourne End, Buckinghamshire1.4 miles
Lidl Marlow, Marlow1.5 miles

GP surgery

Cookham Medical Centre1 mile

Pharmacy

Cookham Pharmacy1.1 miles

Hospital

Marlow Hospital1.3 miles

Green space

Playing Field484 metres

Walking trail

Thames Path254 metres

Straight-line distances from the advertised location. Sources: NHS records, Geolytix supermarket locations, OS Open Greenspace and the national trails registers.

The area stacks up? Now check the location itself: planning nearby, protected designations and past flooding.

Getting Around

Nearest station

Marlow Rail Station1.1 miles

Nearest bus stop

Westhorpe Caravan Park0.7 miles

Typical drive times

Marlow7 min · 2.5 miles
Maidenhead14 min · 5.1 miles
Beaconsfield19 min · 7.3 miles
High Wycombe16 min · 7.5 miles
St Albans (city)46 min · 35 miles

Straight-line distances from the advertised location; drive times are typical free-flow times over OpenStreetMap road data, so allow more at peak. Public transport locations from DfT NaPTAN.

Easy to reach matters. So do planning activity, flood history and ground risks: all in the full report.

Flood Risk

From Environment Agency flood map open data, checked around the advertised map pin and allowing for the listed acreage where known. This summary comes from LandSale, the advertising platform, not from the listing agent, and is not part of the agent's particulars. Risk can vary across a single holding, so verify anything critical through your own searches before committing.

Rivers and the sea

Flood Zone 1Lower risk

Surface water

Outside the mapped risk bandsVery low risk

The detail behind these bandings

The full report pinpoints where this location sits on the flood maps, and runs the deeper checks that usually only surface after an offer.

  • Exact flood zones & annual chances (included in the full report)
  • Any recorded past flooding (included in the full report)
  • Planning activity nearby (included in the full report)
  • Heritage & conservation (included in the full report)
  • Protected nature designations (included in the full report)
  • Ground risks (included in the full report)
  • Sold prices nearby (included in the full report)

£14.99 · one-off purchase

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Important notice: Information, maps and tags on this page are drawn from the advertising agent's marketing materials or generated automatically. LandSale has not verified them. Relying on these details is at your own risk, always carry out independent checks before committing to a purchase.

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