Section 4. Amendment Form. If any amendment to these covenants, conditions and restrictions is so approved, each such amendment shall be delivered to the Declarant or its delegate. Thereupon, the Declarant or its delegate shall within thirty (30) days, do the following:

(a) Reasonably assure itself that the amendment has been validly approved by the Owners of the required number of Lots. (For this purpose, the Declarant or its delegate may rely upon the evidence of record title available in the Durham County Registry, but shall not be required to cause any title to any Lot to be examined.)

(b) Attach to the amendment a certification as to its validity, which certification shall be executed by the Declarant or its delegate in the same manner that deeds are executed.

(c) Immediately, and within the thirty (30) day period aforesaid, Declarant or its delegate shall cause the amendment to be recorded in the Durham County Registry.

All amendments shall be effective from the date of their recordation in the Durham County Registry, provided, however, that no such instrument shall be valid until it has been indexed in the name of the Declarant. When any instrument purporting to amend the covenants, conditions, and restrictions has been certified by the Declarant or its delegate, recorded, and indexed as provided by this Section, it shall be conclusively presumed that such instrument constitutes a valid amendment as to all persons thereafter purchasing any Lots:

Section 5. Undisturbed Buffer. No structure of any kind shall be built within any area designated "Undisturbed Buffer" on plat of MARBREY LANDING, PHASE ONE in Plat Book 136 at Page 21, Durham County Registry.